View in EDS HTML Full Text PDF Full Text

Orbital magnetoresistance in the antiferromagnet CoO driven by dynamic orbital angular momentum.

Saved in:
Bibliographic Details
Title: Orbital magnetoresistance in the antiferromagnet CoO driven by dynamic orbital angular momentum.
Authors: Schmitt, Christin (AUTHOR), Krishnia, Sachin (AUTHOR), Zeer, Mahmoud (AUTHOR), Galíndez-Ruales, Edgar (AUTHOR), Loyal, Mehak (AUTHOR), Köhler, Jonas (AUTHOR), Micus, Luca (AUTHOR), Kikkawa, Takashi (AUTHOR), Arisawa, Hiroki (AUTHOR), Denneulin, Thibaud (AUTHOR), Kovács, András (AUTHOR), Xu, Renyou (AUTHOR), Tran, Duc (AUTHOR), Kronast, Florian (AUTHOR), Go, Dongwook (AUTHOR), Pourovskii, Leonid V. (AUTHOR), Dunin-Borkowski, Rafal E. (AUTHOR), Kuschel, Timo (AUTHOR), Ležaić, Marjana (AUTHOR), Sinova, Jairo (AUTHOR)
Source: Science. 7/2/2026, Vol. 393 Issue 6806, p76-79. 4p.
Subjects: Enhanced magnetoresistance, Cobalt oxides, Spin-orbit interactions, Magnetoresistance, Magnetic materials, Antiferromagnetism
Abstract: Recent predictions of orders of magnitude larger orbital current effects compared with spin currents have attracted considerable interest. However, orbital currents must first be converted into spin currents to interact with the static magnetization dominated by spin angular momentum in conventional magnets. By using a magnet dominated by orbital angular momentum (OAM), we demonstrate a 70-fold enhancement in orbital Hall magnetoresistance in cobalt II oxide/copper (CoO/Cu*), compared with spin Hall magnetoresistance in cobalt II oxide/platinum (CoO/Pt). This arises from interactions between dynamic OAM from surface-oxidized Cu* and static OAM in the antiferromagnetic insulator CoO. Our results show how by using OAM-dominated materials, we can harness the benefits of giant orbital currents that have not been possible using conventional spin-dominated magnets. Editor's summary: Spin currents can be used to control the magnetic state of ferromagnets, enabling applications such as spin-orbit torque magnetic random-access memory. However, the choice of materials for such applications is restricted by the requirement for strong spin-orbiting coupling, which is necessary to generate the spin currents. Instead of spin, Schmitt et al. coupled orbital currents directly to orbital magnetization in CoO/Cu* heterostructures. This approach proved effective in boosting the magnetoresistance signal measured by the researchers. —Jelena Stajic [ABSTRACT FROM AUTHOR]
Copyright of Science 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
Full text is not displayed to guests.
FullText Links:
  – Type: pdflink
Text:
  Availability: 1
Header DbId: pbh
DbLabel: Psychology and Behavioral Sciences Collection
An: 195069938
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Orbital magnetoresistance in the antiferromagnet CoO driven by dynamic orbital angular momentum.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Schmitt%2C+Christin%22">Schmitt, Christin</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Krishnia%2C+Sachin%22">Krishnia, Sachin</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zeer%2C+Mahmoud%22">Zeer, Mahmoud</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Galíndez-Ruales%2C+Edgar%22">Galíndez-Ruales, Edgar</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Loyal%2C+Mehak%22">Loyal, Mehak</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Köhler%2C+Jonas%22">Köhler, Jonas</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Micus%2C+Luca%22">Micus, Luca</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kikkawa%2C+Takashi%22">Kikkawa, Takashi</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Arisawa%2C+Hiroki%22">Arisawa, Hiroki</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Denneulin%2C+Thibaud%22">Denneulin, Thibaud</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kovács%2C+András%22">Kovács, András</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xu%2C+Renyou%22">Xu, Renyou</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tran%2C+Duc%22">Tran, Duc</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kronast%2C+Florian%22">Kronast, Florian</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Go%2C+Dongwook%22">Go, Dongwook</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pourovskii%2C+Leonid+V%2E%22">Pourovskii, Leonid V.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Dunin-Borkowski%2C+Rafal+E%2E%22">Dunin-Borkowski, Rafal E.</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kuschel%2C+Timo%22">Kuschel, Timo</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ležaić%2C+Marjana%22">Ležaić, Marjana</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sinova%2C+Jairo%22">Sinova, Jairo</searchLink> (AUTHOR)
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Science%22">Science</searchLink>. 7/2/2026, Vol. 393 Issue 6806, p76-79. 4p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Enhanced+magnetoresistance%22">Enhanced magnetoresistance</searchLink><br /><searchLink fieldCode="DE" term="%22Cobalt+oxides%22">Cobalt oxides</searchLink><br /><searchLink fieldCode="DE" term="%22Spin-orbit+interactions%22">Spin-orbit interactions</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetoresistance%22">Magnetoresistance</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+materials%22">Magnetic materials</searchLink><br /><searchLink fieldCode="DE" term="%22Antiferromagnetism%22">Antiferromagnetism</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Recent predictions of orders of magnitude larger orbital current effects compared with spin currents have attracted considerable interest. However, orbital currents must first be converted into spin currents to interact with the static magnetization dominated by spin angular momentum in conventional magnets. By using a magnet dominated by orbital angular momentum (OAM), we demonstrate a 70-fold enhancement in orbital Hall magnetoresistance in cobalt II oxide/copper (CoO/Cu*), compared with spin Hall magnetoresistance in cobalt II oxide/platinum (CoO/Pt). This arises from interactions between dynamic OAM from surface-oxidized Cu* and static OAM in the antiferromagnetic insulator CoO. Our results show how by using OAM-dominated materials, we can harness the benefits of giant orbital currents that have not been possible using conventional spin-dominated magnets. Editor's summary: Spin currents can be used to control the magnetic state of ferromagnets, enabling applications such as spin-orbit torque magnetic random-access memory. However, the choice of materials for such applications is restricted by the requirement for strong spin-orbiting coupling, which is necessary to generate the spin currents. Instead of spin, Schmitt et al. coupled orbital currents directly to orbital magnetization in CoO/Cu* heterostructures. This approach proved effective in boosting the magnetoresistance signal measured by the researchers. —Jelena Stajic [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Science 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=195069938
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1126/science.adw1808
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 4
        StartPage: 76
    Subjects:
      – SubjectFull: Enhanced magnetoresistance
        Type: general
      – SubjectFull: Cobalt oxides
        Type: general
      – SubjectFull: Spin-orbit interactions
        Type: general
      – SubjectFull: Magnetoresistance
        Type: general
      – SubjectFull: Magnetic materials
        Type: general
      – SubjectFull: Antiferromagnetism
        Type: general
    Titles:
      – TitleFull: Orbital magnetoresistance in the antiferromagnet CoO driven by dynamic orbital angular momentum.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Schmitt, Christin
      – PersonEntity:
          Name:
            NameFull: Krishnia, Sachin
      – PersonEntity:
          Name:
            NameFull: Zeer, Mahmoud
      – PersonEntity:
          Name:
            NameFull: Galíndez-Ruales, Edgar
      – PersonEntity:
          Name:
            NameFull: Loyal, Mehak
      – PersonEntity:
          Name:
            NameFull: Köhler, Jonas
      – PersonEntity:
          Name:
            NameFull: Micus, Luca
      – PersonEntity:
          Name:
            NameFull: Kikkawa, Takashi
      – PersonEntity:
          Name:
            NameFull: Arisawa, Hiroki
      – PersonEntity:
          Name:
            NameFull: Denneulin, Thibaud
      – PersonEntity:
          Name:
            NameFull: Kovács, András
      – PersonEntity:
          Name:
            NameFull: Xu, Renyou
      – PersonEntity:
          Name:
            NameFull: Tran, Duc
      – PersonEntity:
          Name:
            NameFull: Kronast, Florian
      – PersonEntity:
          Name:
            NameFull: Go, Dongwook
      – PersonEntity:
          Name:
            NameFull: Pourovskii, Leonid V.
      – PersonEntity:
          Name:
            NameFull: Dunin-Borkowski, Rafal E.
      – PersonEntity:
          Name:
            NameFull: Kuschel, Timo
      – PersonEntity:
          Name:
            NameFull: Ležaić, Marjana
      – PersonEntity:
          Name:
            NameFull: Sinova, Jairo
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 02
              M: 07
              Text: 7/2/2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 00368075
          Numbering:
            – Type: volume
              Value: 393
            – Type: issue
              Value: 6806
          Titles:
            – TitleFull: Science
              Type: main
ResultId 1