Spin glass in semiconducting KFe1.05 Ag0.88 Te2 single crystals

[en] We report discovery of KFe1.05Ag0.88Te2 single crystals with semiconducting spin glass ground state. Composition and structure analyses suggest nearly stoichiometric I4/mmm space group but allow for the existence of vacancies, absent in long-range semiconducting antiferromagnet KFe0.85Ag1.15Te2. The subtle change in stoichometry in Fe-Ag sublattice changes magnetic ground state but not conductivity, giving further insight into the semiconducting gap mechanism. © 2015 American Physical Society.

Disciplines :

Chemistry

Author, co-author :

Ryu, H.; Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY, United States, Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY, United States

Lei, H.; Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY, United States

Klobes, B.; Jülich Centre for Neutron Science JCNS, Peter Grünberg Institute PGI, JARA-FIT, Forschungszentrum Jülich GmbH, Jülich, Germany

Warren, J. B.; Instrument Division, Brookhaven National Laboratory, Upton, NY, United States

Hermann, Raphaël ; Université de Liège - ULiège > Département de chimie (sciences) > Département de chimie (sciences)

Petrovic, C.; Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY, United States, Department of Physics and Astronomy, Stony Brook University, Stony Brook, NY, United States

Language :

English

Title :

Spin glass in semiconducting KFe1.05 Ag0.88 Te2 single crystals

Publication date :

2015

Journal title :

Physical Review. B, Condensed Matter and Materials Physics

ISSN :

1098-0121

eISSN :

1550-235X

Publisher :

American Physical Society

Volume :

Issue :

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 16 November 2020

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