| Authors: |
de Abajo FJG; ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain.; ICREA-Institució Catalana de Recerca i Estudis Avançats, Passeig Lluís Companys 23, 08010 Barcelona, Spain., Basov DN; Department of Physics, Columbia University, 1150 Amsterdam Avenue, New York, New York 10027, United States., Koppens FHL; ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain.; ICREA-Institució Catalana de Recerca i Estudis Avançats, Passeig Lluís Companys 23, 08010 Barcelona, Spain., Orsini L; ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain., Ceccanti M; ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain., Castilla S; ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain., Cavicchi L; Scuola Normale Superiore, Piazza dei Cavalieri 7, I-56126 Pisa, Italy.; Dipartimento di Fisica dell'Università di Pisa, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy., Polini M; ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain.; Dipartimento di Fisica dell'Università di Pisa, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy., Gonçalves PAD; ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain., Costa AT; International Iberian Nanotechnology Laboratory (INL), Av Mestre José Veiga, 4715-330 Braga, Portugal., Peres NMR; Centro de Física (CF-UM-UP) and Departamento de Física, Universidade do Minho, P-4710-057 Braga, Portugal.; POLIMACenter for Polariton-driven Light-Matter Interactions, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark., Mortensen NA; POLIMACenter for Polariton-driven Light-Matter Interactions, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark.; Danish Institute for Advanced Study, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark., Bharadwaj S; Elmore Family School of Electrical and Computer Engineering, Birck Nanotechnology Center and Purdue Quantum Science and Engineering Institute, Purdue University, West Lafayette, Indiana 47907, United States., Jacob Z; Elmore Family School of Electrical and Computer Engineering, Birck Nanotechnology Center and Purdue Quantum Science and Engineering Institute, Purdue University, West Lafayette, Indiana 47907, United States., Schuck PJ; Department of Mechanical Engineering, Columbia University, New York, New York 10027, United States., Pasupathy AN; Department of Physics, Columbia University, 1150 Amsterdam Avenue, New York, New York 10027, United States., Delor M; Department of Chemistry, Columbia University, New York, New York 10027, United States., Liu MK; Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794, United States.; National Synchrotron Light Source II, Brookhaven National Laboratory, Upton, New York 11973, United States., Mugarza A; ICREA-Institució Catalana de Recerca i Estudis Avançats, Passeig Lluís Companys 23, 08010 Barcelona, Spain.; Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Bellaterra, 08193 Barcelona Spain., Merino P; Instituto de Ciencia de Materiales de Madrid (ICMM-CSIC), 28049 Madrid, Spain., Cuxart MG; Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Bellaterra, 08193 Barcelona Spain., Chávez-Angel E; Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Bellaterra, 08193 Barcelona Spain., Švec M; Institute of Physics, Czech Academy of Sciences, Praha 6 CZ16200, Czech Republic.; Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Praha 6 CZ16000, Czech Republic., Tizei LHG; Université Paris-Saclay, CNRS, Laboratoire de Physique des Solides, 91405 Orsay, France., Dirnberger F; TUM School of Natural Sciences, Physics Department, Technical University of Munich, 85748 Garching, Germany., Deng H; Physics Department, University of Michigan, 450 Church Street, Ann Arbor, Michigan 48109, United States., Schneider C; Institut für Physik, Fakultät V, Carl von Ossietzky Universität Oldenburg, 26129 Oldenburg, Germany., Menon V; Department of Physics, City College of New York, 160 Convent Ave, New York, New York 100031, United States.; Department of Physics, The Graduate Center, City University of New York, New York, New York 10016 United States., Deilmann T; Institut für Festkörpertheorie, Universität Münster, 48149 Münster, Germany., Chernikov A; Institute of Applied Physics and Würzburg-Dresden Cluster of Excellence ct.qmat, TUD Dresden University of Technology, 01062 Dresden, Germany., Thygesen KS; Computational Atomic-Scale Materials Design (CAMD), Department of Physics, Technical University of Denmark, 2800 Lyngby, Denmark., Abate Y; Department of Physics and Astronomy, University of Georgia, Athens, Georgia 30602, United States., Terrones M; Department of Physics, The Pennsylvania State University, University Park, Pennsylvania 16802, United States., Sangwan VK; Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States., Hersam MC; Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States.; Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States.; Department of Electrical and Computer Engineering, Northwestern University, Evanston, Illinois 60208, United States., Yu L; Department of Applied Physics, Stanford University, Stanford, California 94305, United States.; SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States., Chen X; SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States.; Department of Physics, Stanford University, Stanford, California 94305, United States., Heinz TF; Department of Applied Physics, Stanford University, Stanford, California 94305, United States.; SLAC National Accelerator Laboratory, Menlo Park, California 94025, United States., Murthy P; Institute for Quantum Electronics, ETH Zürich, Auguste-Piccard-Hof 1, 8093 Zürich, Switzerland., Kroner M; Institute for Quantum Electronics, ETH Zürich, Auguste-Piccard-Hof 1, 8093 Zürich, Switzerland., Smolenski T; Department of Physics, University of Basel, Klingelbergstrasse 82, 4056 Basel, Switzerland., Thureja D; Department of Physics, Harvard University, Cambridge, Massachusetts 02138, United States., Chervy T; NTT Research, Inc. Physics & Informatics Laboratories, 940 Stewart Dr, Sunnyvale, California 94085, United States., Genco A; Politecnico di Milano, Dipartimento di Fisica, Piazza Leonardo da Vinci 32, Milano 20133, Italy., Trovatello C; Politecnico di Milano, Dipartimento di Fisica, Piazza Leonardo da Vinci 32, Milano 20133, Italy.; Department of Mechanical Engineering, Columbia University, New York, New York 10027, United States., Cerullo G; Politecnico di Milano, Dipartimento di Fisica, Piazza Leonardo da Vinci 32, Milano 20133, Italy., Dal Conte S; Politecnico di Milano, Dipartimento di Fisica, Piazza Leonardo da Vinci 32, Milano 20133, Italy., Timmer D; Institut für Physik, Carl von Ossietzky Universität, 26129 Oldenburg, Germany., De Sio A; Institut für Physik, Carl von Ossietzky Universität, 26129 Oldenburg, Germany.; Center for Nanoscale Dynamics (CeNaD), Carl von Ossietzky Universität, 26129 Oldenburg, Germany., Lienau C; Institut für Physik, Carl von Ossietzky Universität, 26129 Oldenburg, Germany.; Center for Nanoscale Dynamics (CeNaD), Carl von Ossietzky Universität, 26129 Oldenburg, Germany., Shang N; QTF Centre of Excellence, Department of Electronics and Nanoengineering, Aalto University, Espoo 02150, Finland., Hong H; State Key Laboratory for Mesoscopic Physics, Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing 100871, China., Liu K; State Key Laboratory for Mesoscopic Physics, Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing 100871, China., Sun Z; QTF Centre of Excellence, Department of Electronics and Nanoengineering, Aalto University, Espoo 02150, Finland., Rozema LA; Faculty of Physics, Vienna Center for Quantum Science and Technology (VCQ), University of Vienna, Boltzmanngasse 5, 1090 Vienna, Austria., Walther P; Faculty of Physics, Vienna Center for Quantum Science and Technology (VCQ), University of Vienna, Boltzmanngasse 5, 1090 Vienna, Austria.; Faculty of Physics & Vienna Doctoral School in Physics, University of Vienna, Boltzmanngasse 5, 1090 Vienna, Austria.; Research Network Quantum Aspects of Space Time (TURIS) & Christian Doppler Laboratory for Photonic Quantum Computer, University of Vienna, Boltzmanngasse 5, 1090 Vienna, Austria., Alù A; Photonics Initiative, Advanced Science Research Center, City University of New York, New York, New York 10031, United States.; Physics Program, Graduate Center, City University of New York, New York, New York 10016, United States., Marini A; Dipartimento di Scienze Fisiche e Chimiche, Universitá degli Studi dell'Aquila, L'Aquila 67100, Italy., Cotrufo M; The Institute of Optics, University of Rochester, Rochester, New York 14627, United States., Queiroz R; Department of Physics, Columbia University, 1150 Amsterdam Avenue, New York, New York 10027, United States., Zhu XY; Department of Chemistry, Columbia University, New York, New York 10027, United States., Cox JD; POLIMACenter for Polariton-driven Light-Matter Interactions, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark.; Danish Institute for Advanced Study, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark., Dias EJC; POLIMACenter for Polariton-driven Light-Matter Interactions, University of Southern Denmark, Campusvej 55, DK-5230 Odense M, Denmark., Echarri ÁR; Max-Born-Institut, 12489 Berlin, Germany., Iyikanat F; ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain., Herrmann P; Institute of Solid State Physics, Friedrich Schiller University Jena, Helmholtzweg 5, 07743 Jena, Germany., Tornow N; Institute of Solid State Physics, Friedrich Schiller University Jena, Helmholtzweg 5, 07743 Jena, Germany., Klimmer S; Institute of Solid State Physics, Friedrich Schiller University Jena, Helmholtzweg 5, 07743 Jena, Germany.; ARC Centre of Excellence for Transformative Meta-Optical Systems, Department of Electronic Materials Engineering, Research School of Physics, The Australian National University, Canberra, ACT 2601, Australia., Wilhelm J; Regensburg Center for Ultrafast Nanoscopy (RUN), University of Regensburg, 93040 Regensburg, Germany.; Institute of Theoretical Physics, University of Regensburg, 93053 Regensburg, Germany., Soavi G; Institute of Solid State Physics, Friedrich Schiller University Jena, Helmholtzweg 5, 07743 Jena, Germany.; Abbe Center of Photonics, Friedrich Schiller University Jena, Albert-Einstein-Straße 6, 07745 Jena, Germany., Sun Z; State Key Laboratory of Surface Physics, Key Laboratory of Micro and Nano Photonic Structures (MOE), and Department of Physics, Fudan University, Shanghai 200433, China.; Institute for Nanoelectronic Devices and Quantum Computing, and Zhangjiang Fudan International Innovation Center, Fudan University, Shanghai 200433, China., Wu S; Institute for Nanoelectronic Devices and Quantum Computing, and Zhangjiang Fudan International Innovation Center, Fudan University, Shanghai 200433, China., Xiong Y; Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371 Singapore.; Science, Mathematics and Technology (SMT), Singapore University of Technology and Design, 8 Somapah Road, 487372 Singapore., Matsyshyn O; Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371 Singapore., Krishna Kumar R; ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain.; Catalan Institute of Nanoscience and Nanotechnology (ICN2), CSIC and BIST, Bellaterra, 08193 Barcelona Spain., Song JCW; Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371 Singapore., Bucher T; Andrea & Erna Viterbi Department of Electrical and Computer Engineering, Technion-Israel Institute of Technology, 3200003 Haifa, Israel., Gorlach A; Andrea & Erna Viterbi Department of Electrical and Computer Engineering, Technion-Israel Institute of Technology, 3200003 Haifa, Israel., Tsesses S; Department of Physics, MIT, Cambridge, Massachusetts 02139, United States., Kaminer I; Andrea & Erna Viterbi Department of Electrical and Computer Engineering, Technion-Israel Institute of Technology, 3200003 Haifa, Israel., Schwab J; 4th Physics Institute, Research Center SCoPE, and Integrated Quantum Science and Technology Center, University of Stuttgart, 70569 Stuttgart, Germany., Mangold F; 4th Physics Institute, Research Center SCoPE, and Integrated Quantum Science and Technology Center, University of Stuttgart, 70569 Stuttgart, Germany., Giessen H; 4th Physics Institute, Research Center SCoPE, and Integrated Quantum Science and Technology Center, University of Stuttgart, 70569 Stuttgart, Germany., Sánchez MS; Instituto de Ciencia de Materiales de Madrid (ICMM-CSIC), 28049 Madrid, Spain., Efetov DK; Fakultät für Physik, Ludwig-Maximilians Universität, D-80799 München, Germany.; Munich Center for Quantum Science and Technology (MCQST), D-80799 München, Germany., Low T; Department of Electrical and Computer Engineering, University of Minnesota, Minneapolis, Minnesota 55455, United States.; School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, United States., Gómez-Santos G; Departamento de Física de la Materia Condensada, Instituto Nicolás Cabrera and Condensed Matter Physics Center (IFIMAC), Universidad Autónoma de Madrid, E-28049 Madrid, Spain., Stauber T; Instituto de Ciencia de Materiales de Madrid (ICMM-CSIC), 28049 Madrid, Spain., Álvarez-Pérez G; Department of Physics, University of Oviedo, 33006 Oviedo, Spain.; Center of Research on Nanomaterials and Nanotechnology, CINN (CSIC-Universidad de Oviedo), El Entrego 33940, Spain.; Istituto Italiano di Tecnologia, Center for Biomolecular Nanotechnologies,Via Barsanti 14, 73010 Arnesano, Italy., Duan J; Centre for Interdisciplinary Science of Optical Quantum and NEMS Integration, School of Physics, Beijing Institute of Technology, 100081 Beijing, China.; Center for Quantum Physics, Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement (MOE), School of Physics, Beijing Institute of Technology, 100081 Beijing, China., Martín-Moreno L; Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.; Departamento de Física de la Materia Condensada, Universidad de Zaragoza, Zaragoza 50009, Spain., Paarmann A; Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany., Caldwell JD; Department of Mechanical Engineering, Vanderbilt University, Nashville, Tennessee 37235 United States., Nikitin AY; Donostia International Physics Center (DIPC), Donostia, San Sebastian 20018, Spain.; IKERBASQUE, Basque Foundation for Science, Bilbao 48011, Spain., Alonso-González P; Department of Physics, University of Oviedo, 33006 Oviedo, Spain.; Center of Research on Nanomaterials and Nanotechnology, CINN (CSIC-Universidad de Oviedo), El Entrego 33940, Spain., Mueller NS; Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany., Volkov V; Emerging Technologies Research Center, XPANCEO, Internet City, Emmay Tower, Dubai, United Arab Emirates., Jariwala D; Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States., Shegai T; Department of Physics, Chalmers University of Technology, Göteborg 41296, Sweden., van de Groep J; Van der Waals-Zeeman Institute, Institute of Physics, University of Amsterdam, Amsterdam 1012 WX, The Netherlands., Boltasseva A; Elmore Family School of Electrical and Computer Engineering, Birck Nanotechnology Center and Purdue Quantum Science and Engineering Institute, Purdue University, West Lafayette, Indiana 47907, United States.; School of Materials Engineering, Purdue University, West Lafayette, Indiana 47907, United States., Bondarev IV; Department of Mathematics & Physics, North Carolina Central University, Durham, North Carolina 27707, United States., Shalaev VM; Elmore Family School of Electrical and Computer Engineering, Birck Nanotechnology Center and Purdue Quantum Science and Engineering Institute, Purdue University, West Lafayette, Indiana 47907, United States., Simon J; Elmore Family School of Electrical and Computer Engineering, Birck Nanotechnology Center and Purdue Quantum Science and Engineering Institute, Purdue University, West Lafayette, Indiana 47907, United States., Fruhling C; Elmore Family School of Electrical and Computer Engineering, Birck Nanotechnology Center and Purdue Quantum Science and Engineering Institute, Purdue University, West Lafayette, Indiana 47907, United States., Shen G; Hefei National Research Center for Physical Sciences at the Microscale, New Cornerstone Science Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, China., Novko D; Centre for Advanced Laser Techniques, Institute of Physics, 10000 Zagreb, Croatia., Tan S; Hefei National Research Center for Physical Sciences at the Microscale, New Cornerstone Science Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, China., Wang B; Hefei National Research Center for Physical Sciences at the Microscale, New Cornerstone Science Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, China., Petek H; Department of Physics and Astronomy and the IQ Initiative, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States., Mkhitaryan V; ICFO-Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, Spain.; Elmore Family School of Electrical and Computer Engineering, Birck Nanotechnology Center and Purdue Quantum Science and Engineering Institute, Purdue University, West Lafayette, Indiana 47907, United States., Yu R; Department of Electrical Engineering, Ginzton Laboratory, Stanford University, Stanford, California 94305, United States., Manjavacas A; Instituto de Química Física Blas Cabrera (IQF), CSIC, 28006 Madrid, Spain., Ortega JE; Centro de Física de Materiales CSIC-UPV/EHU & Departamento de Física Aplicada, Universidad del País Vasco, 20018 San Sebastián, Spain., Cheng X; QTF Centre of Excellence, Department of Electronics and Nanoengineering, Aalto University, Espoo 02150, Finland., Tian R; QTF Centre of Excellence, Department of Electronics and Nanoengineering, Aalto University, Espoo 02150, Finland., Mao D; School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China., Van Thourhout D; Photonics Research Group, Department of Information Technology, Ghent University-imec, Gent 9052, Belgium., Gan X; School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China., Dai Q; School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China.; CAS Key Laboratory of Nanophotonic Materials and Devices, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology, Beijing 100190, P. R. China.; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, P. R. China., Sternbach A; Department of Physics, University of Maryland, College Park, Maryland 20742, United States.; Maryland Quantum Materials Center, University of Maryland, College Park, Maryland 20742, United States., Zhou Y; Maryland Quantum Materials Center, University of Maryland, College Park, Maryland 20742, United States.; Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, United States., Hafezi M; Joint Quantum Institute (JQI), University of Maryland, College Park, Maryland 20742, United States., Litvinov D; Department of Materials Science and Engineering, National University of Singapore, 117575, Singapore.; Institute for Functional Intelligent Materials, National University of Singapore, 117544, Singapore., Grzeszczyk M; Institute for Functional Intelligent Materials, National University of Singapore, 117544, Singapore.; Center for Quantum Nanoscience, Institute for Basic Science (IBS), Seoul 03760, Republic of Korea., Novoselov KS; Department of Materials Science and Engineering, National University of Singapore, 117575, Singapore.; Institute for Functional Intelligent Materials, National University of Singapore, 117544, Singapore., Koperski M; Department of Materials Science and Engineering, National University of Singapore, 117575, Singapore.; Institute for Functional Intelligent Materials, National University of Singapore, 117544, Singapore., Papadopoulos S; Photonics Laboratory, ETH Zurich, Zurich 8093, Switzerland., Novotny L; Photonics Laboratory, ETH Zurich, Zurich 8093, Switzerland., Viti L; NEST, CNR-Istituto Nanoscienze and Scuola Normale Superiore, Piazza San Silvestro 12, Pisa 56127, Italy., Vitiello MS; NEST, CNR-Istituto Nanoscienze and Scuola Normale Superiore, Piazza San Silvestro 12, Pisa 56127, Italy., Cottam ND; School of Physics and Astronomy, University of Nottingham, Nottingham, NG7 2RD, U.K., Dewes BT; School of Physics and Astronomy, University of Nottingham, Nottingham, NG7 2RD, U.K., Makarovsky O; School of Physics and Astronomy, University of Nottingham, Nottingham, NG7 2RD, U.K., Patanè A; School of Physics and Astronomy, University of Nottingham, Nottingham, NG7 2RD, U.K., Song Y; Department of Electrical and Computer Engineering, Yale University, New Haven, Connecticut 06511, United States., Cai M; Department of Electrical and Computer Engineering, Yale University, New Haven, Connecticut 06511, United States., Chen J; Department of Electrical and Computer Engineering, Yale University, New Haven, Connecticut 06511, United States., Naveh D; Faculty of Engineering and Bar-Ilan Institute for Nanotechnology and Advanced Materials, Bar-Ilan University, 52900, Ramat-Gan, Israel., Jang H; Department of Physics, Boston College, Chestnut Hill, Massachusetts 02467-3804, United States., Park S; Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, United States., Xia F; Department of Electrical and Computer Engineering, Yale University, New Haven, Connecticut 06511, United States., Jenke PK; QTF Centre of Excellence, Department of Electronics and Nanoengineering, Aalto University, Espoo 02150, Finland.; Faculty of Physics, Vienna Center for Quantum Science and Technology (VCQ), University of Vienna, Boltzmanngasse 5, 1090 Vienna, Austria., Bajo J; State Key Laboratory for Mesoscopic Physics, Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing 100871, China.; Faculty of Physics, Vienna Center for Quantum Science and Technology (VCQ), University of Vienna, Boltzmanngasse 5, 1090 Vienna, Austria., Braun B; State Key Laboratory for Mesoscopic Physics, Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing 100871, China.; Faculty of Physics, Vienna Center for Quantum Science and Technology (VCQ), University of Vienna, Boltzmanngasse 5, 1090 Vienna, Austria., Burch KS; Department of Physics, Boston College, Chestnut Hill, Massachusetts 02467-3804, United States., Zhao L; Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, United States., Xu X; Department of Physics, University of Washington, Seattle, Washington 98195, United States.; Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195, United States. |
