Antiferromagnetism in semiconducting KFe0.85Ag1.15Te2 single crystals

Abstract

We have synthesized single crystals of K1.00(3)Fe0.85(2)Ag1.15(2)Te2.0(1). The materials crystallizes in the ThCr2Si2 structure with I4/mmm symmetry and without K and Fe/Ag deficiencies, unlike in KxFe2-ySe2 and KxFe2-yS2. In contrast to theoretical prediction for higher Tc in KFe2Te2, KFe0.85Ag1.15Te2 is a semiconductor with long-range antiferromagnetic transition at TN = 35 K.

4 pages, 4 figures

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Cited by in corpus (6)

• The Unexpected Properties of Alkali Metal Iron Selenide Superconductors
• Intertwined magnetic and nematic orders in semiconducting KFe${}_{0.8}$Ag${}_{1.2}$Te${}_2$
• Spin glass in semiconducting KFe${}_{1.05}$Ag${}_{0.88}$Te${}_2$ single crystals
• Strain-induced spin-nematic state and nematic susceptibility arising from $2\times 2$ Fe clusters in KFe${}_{0.8}$Ag${}_{1.2}$Te${}_2$
• Sustained phase separation and spin glass in Co-doped K${}_x$Fe${}_{2-y}$Se${}_2$ single crystals
• Twinning of domains and spin anisotropy in K${}_5$Fe${}_4$Ag${}_6$Te${}_{10}$