skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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

Similar Records

Spin-Glass Behavior of Semiconducting KxFe2-yS2
Journal Article · Sat Dec 31 00:00:00 EST 2011 · Physical Review. B, Condensed Matter and Materials Physics · OSTI ID:1026760

On the Nanoscale Structure of KxFe2-yCh2 (Ch = S, Se): A Neutron Pair Distribution Function View
Journal Article · Tue Jul 03 00:00:00 EDT 2018 · Condensed Matter · OSTI ID:1026760

NMR Characterization of Sulphur Substitution Effects in the KxFe2−ySe2−zSz High-Tc Superconductor
Journal Article · Tue Apr 17 00:00:00 EDT 2012 · Physical Review. B, Condensed Matter and Materials Physics · OSTI ID:1026760