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Title: Physical properties and phase diagram of the magnetic compound Cr{sub 0.26}NbS{sub 1.74} at high pressures

Abstract

We report the results of a study of magnetic, electrical, and thermodynamic properties of a single crystal of the magnetic compound Cr{sub 0.26}NbS{sub 1.74} at ambient and high pressures. Results of the measurements of magnetization as a function of temperature reveal the existence of a ferromagnetic phase transition in Cr{sub 0.26}NbS{sub 1.74}. The effective number of Bohr magnetons per Cr atom in the paramagnetic phase of Cr{sub 0.26}NbS{sub 1.74} is µ{sub eff} ≈ 4.6µB, which matches the literature data for Cr1/3NbS2. Similarly, the effective number of Bohr magnetons per Cr atom in the saturation fields is rather close in both substances and corresponds to the number of magnetons in the Cr{sup +3} ion. In contrast to the stoichiometric compound, Cr{sub 0.26}NbS{sub 1.74} does not show a metamagnetic transition, that indicates the lack of a magnetic soliton. A high-pressure phase diagram of the compound reveals the quantum phase transition at T = 0 and P ≈ 4.2 GPa and the triple point situated at T ≈ 20 K and P ≈ 4.2 GPa.

Authors:
; ;  [1]; ;  [2];  [1]
  1. Russian Academy of Sciences, Institute for High Pressure Physics (Russian Federation)
  2. Russian Academy of Sciences, Institute of Solid State Physics (Russian Federation)
Publication Date:
OSTI Identifier:
22617245
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Experimental and Theoretical Physics; Journal Volume: 122; Journal Issue: 6; Other Information: Copyright (c) 2016 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ATOMS; CHROMIUM COMPOUNDS; MAGNETIZATION; MAGNETS; MONOCRYSTALS; NIOBIUM COMPOUNDS; PARAMAGNETISM; PHASE DIAGRAMS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; PRESSURE RANGE GIGA PA; SATURATION; SOLITONS; STOICHIOMETRY; SULFUR COMPOUNDS; TEMPERATURE DEPENDENCE; THERMODYNAMIC PROPERTIES; THERMODYNAMICS

Citation Formats

Sidorov, V. A., Petrova, A. E., Pinyagin, A. N., Kolesnikov, N. N., Khasanov, S. S., and Stishov, S. M., E-mail: sergei@hppi.troitsk.ru. Physical properties and phase diagram of the magnetic compound Cr{sub 0.26}NbS{sub 1.74} at high pressures. United States: N. p., 2016. Web. doi:10.1134/S1063776116050204.
Sidorov, V. A., Petrova, A. E., Pinyagin, A. N., Kolesnikov, N. N., Khasanov, S. S., & Stishov, S. M., E-mail: sergei@hppi.troitsk.ru. Physical properties and phase diagram of the magnetic compound Cr{sub 0.26}NbS{sub 1.74} at high pressures. United States. doi:10.1134/S1063776116050204.
Sidorov, V. A., Petrova, A. E., Pinyagin, A. N., Kolesnikov, N. N., Khasanov, S. S., and Stishov, S. M., E-mail: sergei@hppi.troitsk.ru. 2016. "Physical properties and phase diagram of the magnetic compound Cr{sub 0.26}NbS{sub 1.74} at high pressures". United States. doi:10.1134/S1063776116050204.
@article{osti_22617245,
title = {Physical properties and phase diagram of the magnetic compound Cr{sub 0.26}NbS{sub 1.74} at high pressures},
author = {Sidorov, V. A. and Petrova, A. E. and Pinyagin, A. N. and Kolesnikov, N. N. and Khasanov, S. S. and Stishov, S. M., E-mail: sergei@hppi.troitsk.ru},
abstractNote = {We report the results of a study of magnetic, electrical, and thermodynamic properties of a single crystal of the magnetic compound Cr{sub 0.26}NbS{sub 1.74} at ambient and high pressures. Results of the measurements of magnetization as a function of temperature reveal the existence of a ferromagnetic phase transition in Cr{sub 0.26}NbS{sub 1.74}. The effective number of Bohr magnetons per Cr atom in the paramagnetic phase of Cr{sub 0.26}NbS{sub 1.74} is µ{sub eff} ≈ 4.6µB, which matches the literature data for Cr1/3NbS2. Similarly, the effective number of Bohr magnetons per Cr atom in the saturation fields is rather close in both substances and corresponds to the number of magnetons in the Cr{sup +3} ion. In contrast to the stoichiometric compound, Cr{sub 0.26}NbS{sub 1.74} does not show a metamagnetic transition, that indicates the lack of a magnetic soliton. A high-pressure phase diagram of the compound reveals the quantum phase transition at T = 0 and P ≈ 4.2 GPa and the triple point situated at T ≈ 20 K and P ≈ 4.2 GPa.},
doi = {10.1134/S1063776116050204},
journal = {Journal of Experimental and Theoretical Physics},
number = 6,
volume = 122,
place = {United States},
year = 2016,
month = 6
}