ZhETF, Vol. 149,
p. 1208 (June 2016)
(English translation - JETP,
Vol. 122, No. 6,
available online at www.springer.com
Physical properties and phase diagram of the magnetic compound Cr0.26NbS1.74 at high pressures
Sidorov V.A., Petrova A.E., Pinyagin A.N., Kolesnikov N.N., Khasanov S.S., Stishov S.M.
Received: October 15, 2015
We report a study of magnetic, electrical, and thermodynamic properties of a single crystal of the magnetic compound Cr0.26NbS1.74 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 Cr0.26NbS1.74. The effective number of Bohr magnetons per Cr atom in the paramagnetic phase of Cr0.26NbS1.74 is , 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+3 ion. In contrast to the stoichiometric compound, Cr0.26NbS1.74 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 GPa and the triple point situated at K and GPa.