Coherent ac spin current transmission across an antiferromagnetic CoO insulator.


Journal

Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555

Informations de publication

Date de publication:
20 11 2019
Historique:
received: 22 05 2019
accepted: 24 10 2019
entrez: 22 11 2019
pubmed: 22 11 2019
medline: 22 11 2019
Statut: epublish

Résumé

The recent discovery of spin current transmission through antiferromagnetic insulating materials opens up vast opportunities for fundamental physics and spintronics applications. The question currently surrounding this topic is: whether and how could THz antiferromagnetic magnons mediate a GHz spin current? This mismatch of frequencies becomes particularly critical for the case of coherent ac spin current, raising the fundamental question of whether a GHz ac spin current can ever keep its coherence inside an antiferromagnetic insulator and so drive the spin precession of another ferromagnet layer coherently? Utilizing element- and time-resolved x-ray pump-probe measurements on Py/Ag/CoO/Ag/Fe

Identifiants

pubmed: 31748514
doi: 10.1038/s41467-019-13280-5
pii: 10.1038/s41467-019-13280-5
pmc: PMC6868243
doi:

Types de publication

Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S.

Langues

eng

Sous-ensembles de citation

IM

Pagination

5265

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Auteurs

Q Li (Q)

Department of Physics, University of California at Berkeley, Berkeley, CA, 94720, USA.

M Yang (M)

Department of Physics, University of California at Berkeley, Berkeley, CA, 94720, USA.

C Klewe (C)

Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.

P Shafer (P)

Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.

A T N'Diaye (AT)

Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.

D Hou (D)

WPI Advanced Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan.

T Y Wang (TY)

Department of Physics, University of California at Berkeley, Berkeley, CA, 94720, USA.

N Gao (N)

Department of Physics, University of California at Berkeley, Berkeley, CA, 94720, USA.

E Saitoh (E)

WPI Advanced Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan.

C Hwang (C)

Korea Research Institute of Standards and Science, Yuseong, Daejeon, 305-340, Korea.

R J Hicken (RJ)

Department of Physics and Astronomy, University of Exeter, Stocker Road, Exeter, Devon, EX4 4QL, UK.

J Li (J)

International Center for Quantum Materials, School of Physics, Peking University, Beijing, 100871, China. jiali83@pku.edu.cn.

E Arenholz (E)

Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.

Z Q Qiu (ZQ)

Department of Physics, University of California at Berkeley, Berkeley, CA, 94720, USA. qiu@berkeley.edu.

Classifications MeSH