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

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arxiv 1105.0421 v2 pith:KOCI4W2K submitted 2011-05-02 cond-mat.supr-con cond-mat.mtrl-sci

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

Hechang Lei , Emil S. Bozin , Kefeng Wang , C. Petrovic This is my paper
classification cond-mat.supr-con cond-mat.mtrl-sci
keywords crystalskfe0singleantiferromagneticantiferromagnetismcontrastcrystallizesdeficiencies
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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.

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