TY - JOUR

T1 - Effect of Titanium Diselenide Doping on the Magnetic State and Transport Properties of FeTe

AU - Kislov, E.

AU - Selezneva, N.

AU - Sherokalova, E.

AU - Volegov, A.

AU - Kuznetsov, D.

AU - Baranov, N.

N1 - This work was supported by the Russian Science Foundation (grant no. 22-13-00158).

PY - 2023/12/1

Y1 - 2023/12/1

N2 - The iron–tellurium-based compounds Fe1.1Te(TiSe2)y doped with titanium diselenide (y = 0, 0.04, 0.08, 0.1, 0.2) have been synthesized for the first time and studied by means of X-ray diffraction, electrical resistivity and magnetization measurements. It has been shown that the addition of a small amount of titanium diselenide to single-phase iron telluride with a tetragonal crystal structure leads to the appearance of superconductivity, a decrease in the Néel temperature and contraction of the crystal lattice at y ≥ 0.04. The maximal temperature of the onset of the superconducting transition ~ 13 K is observed for a sample with the nominal composition Fe1.1Te(TiSe2)0.1. The behavior of the resistivity with temperature below is observed to depend on the current value, which may indicate superconductivity characteristic of granular superconductors.

AB - The iron–tellurium-based compounds Fe1.1Te(TiSe2)y doped with titanium diselenide (y = 0, 0.04, 0.08, 0.1, 0.2) have been synthesized for the first time and studied by means of X-ray diffraction, electrical resistivity and magnetization measurements. It has been shown that the addition of a small amount of titanium diselenide to single-phase iron telluride with a tetragonal crystal structure leads to the appearance of superconductivity, a decrease in the Néel temperature and contraction of the crystal lattice at y ≥ 0.04. The maximal temperature of the onset of the superconducting transition ~ 13 K is observed for a sample with the nominal composition Fe1.1Te(TiSe2)0.1. The behavior of the resistivity with temperature below is observed to depend on the current value, which may indicate superconductivity characteristic of granular superconductors.

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U2 - 10.1134/S0031918X23602123

DO - 10.1134/S0031918X23602123

M3 - Article

VL - 124

SP - 1204

EP - 1215

JO - Physics of Metals and Metallography

JF - Physics of Metals and Metallography

SN - 0031-918X

IS - 12

ER -