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Fermi arcs in a doped pseudospin-1/2 Heisenberg antiferromagnet.

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Title: Fermi arcs in a doped pseudospin-1/2 Heisenberg antiferromagnet.
Authors: Kim, Y. K., Krupin, O., Denlinger, J. D., Bostwick, A., Rotenberg, E., Zhao, Q., Mitchell, J. F., Mien, J. W., Kim, B. J.
Source: Science (pre-March 2025). 7/11/2014, Vol. 345 Issue 6193, p187-190. 4p.
Subjects: High temperature superconductivity, Superconductivity, Strontium, Cuprates, Antiferromagnetic materials
Abstract: High-temperature superconductivity in cuprates arises from an electronic state that remains poorly understood. We report the observation of a related electronic state in a noncuprate material, strontium iridate (Sr2lrO4), in which the distinct cuprate fermiology is largely reproduced. Upon surface electron doping through in situ deposition of alkali-metal atoms, angle-resolved photoemission spectra of Sr2lrO4 display disconnected segments of zero-energy states, known as Fermi arcs, and a gap as large as 80 millielectron volts. Its evolution toward a normal metal phase with a closed Fermi surface as a function of doping and temperature parallels that in the cuprates. Our result suggests that Sr2lrO4 is a useful model system for comparison to the cuprates. [ABSTRACT FROM AUTHOR]
Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Fermi arcs in a doped pseudospin-1/2 Heisenberg antiferromagnet.
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  Data: <searchLink fieldCode="AR" term="%22Kim%2C+Y%2E+K%2E%22">Kim, Y. K.</searchLink><br /><searchLink fieldCode="AR" term="%22Krupin%2C+O%2E%22">Krupin, O.</searchLink><br /><searchLink fieldCode="AR" term="%22Denlinger%2C+J%2E+D%2E%22">Denlinger, J. D.</searchLink><br /><searchLink fieldCode="AR" term="%22Bostwick%2C+A%2E%22">Bostwick, A.</searchLink><br /><searchLink fieldCode="AR" term="%22Rotenberg%2C+E%2E%22">Rotenberg, E.</searchLink><br /><searchLink fieldCode="AR" term="%22Zhao%2C+Q%2E%22">Zhao, Q.</searchLink><br /><searchLink fieldCode="AR" term="%22Mitchell%2C+J%2E+F%2E%22">Mitchell, J. F.</searchLink><br /><searchLink fieldCode="AR" term="%22Mien%2C+J%2E+W%2E%22">Mien, J. W.</searchLink><br /><searchLink fieldCode="AR" term="%22Kim%2C+B%2E+J%2E%22">Kim, B. J.</searchLink>
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  Data: <searchLink fieldCode="JN" term="%22Science+%28pre-March+2025%29%22">Science (pre-March 2025)</searchLink>. 7/11/2014, Vol. 345 Issue 6193, p187-190. 4p.
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  Data: <searchLink fieldCode="DE" term="%22High+temperature+superconductivity%22">High temperature superconductivity</searchLink><br /><searchLink fieldCode="DE" term="%22Superconductivity%22">Superconductivity</searchLink><br /><searchLink fieldCode="DE" term="%22Strontium%22">Strontium</searchLink><br /><searchLink fieldCode="DE" term="%22Cuprates%22">Cuprates</searchLink><br /><searchLink fieldCode="DE" term="%22Antiferromagnetic+materials%22">Antiferromagnetic materials</searchLink>
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  Data: High-temperature superconductivity in cuprates arises from an electronic state that remains poorly understood. We report the observation of a related electronic state in a noncuprate material, strontium iridate (Sr2lrO4), in which the distinct cuprate fermiology is largely reproduced. Upon surface electron doping through in situ deposition of alkali-metal atoms, angle-resolved photoemission spectra of Sr2lrO4 display disconnected segments of zero-energy states, known as Fermi arcs, and a gap as large as 80 millielectron volts. Its evolution toward a normal metal phase with a closed Fermi surface as a function of doping and temperature parallels that in the cuprates. Our result suggests that Sr2lrO4 is a useful model system for comparison to the cuprates. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Science (pre-March 2025) is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=97122907
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        Value: 10.1126/science.1251151
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              Text: 7/11/2014
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