Spin-glass Behavior of Semiconducting KxFe2−yS2
Journal Article
·
· Physical Review. B, Condensed Matter and Materials Physics
We report the discovery of K{sub x}Fe{sub 2-y}S{sub 2} single crystals, isostructural to K{sub x}Fe{sub 2-y}Se{sub 2} superconductors. The sulfide compound is a small gap semiconductor and shows spin-glass behavior below 32 K. Our results indicate that stoichiometry, defects, and the local environment of FeCh (Ch=S,Se) tetrahedra have important effects on the physical properties of isostructural and isoelectronic K{sub x}Fe{sub 2-y}Ch{sub 2} compounds.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- DOE - OFFICE OF SCIENCE
- DOE Contract Number:
- DE-AC02-98CH10886
- OSTI ID:
- 1026760
- Report Number(s):
- BNL-95304-2011-JA; R&D Project: MA-509-MACA; PO-013; PO-011; KC0201050; KC0202010; TRN: US1105113
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Vol. 83, Issue 18; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- English
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