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

Hyejin Ryu; Hechang Lei; B. Klobes; J. B. Warren; R. P. Hermann; C. Petrovic

doi:10.1103/PhysRevB.91.174517

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

Hyejin Ryu, Hechang Lei, B. Klobes, J. B. Warren, R. P. Hermann, C. Petrovic

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

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.

Original language	English
Article number	174517
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	91
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevB.91.174517
State	Published - May 26 2015
Externally published	Yes

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10.1103/PhysRevB.91.174517

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abstract = "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.",

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AU - Hermann, R. P.

AU - Petrovic, C.

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N2 - 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.

AB - 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.

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

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