Effect of pressure on the curie point of Cr<sub>7</sub>□Te<sub>8</sub> with the NiAs‐type structure

Ozawa, K.; Yoshimi, T.; Yanagisawa, Saburô

doi:10.1002/pssb.2220440226

Cited by 8 publications

(3 citation statements)

References 6 publications

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“…The calculated Curie temperature for Cr,uTe, (1000 "C) was obtained by the molecular field approximation. A con-siderable difference was obtained between TF1 and TZbS for Cr30Te, (1000 "C), like in Cr3111]Te, (cooled slowly) [2], and in Cr,nTe, [3]. This difference cannot be explained by the volume effect of the exchange interaction.…”

Section: Discussionmentioning

confidence: 99%

Effect of pressure on the Curie point of Cr1−δTe system with the Pseudo-NiAs-type structure

Ozawa

Yoshimi

Irie

et al. 1972

Phys. Stat. Sol. (a)

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Pressure effect on the Curie temperature in Cr3□Te4 (quenching temperature 1000 °C) with the partially disordered phase of MLD and in Cr7□Te8 (1000 °C) with the disordered phase of MLD, and in Cr7□Te8 (400 °C) with the ordered phase have been supplementarily investigated by the electrical resistivity measurements and the magnetic induction method, in addition to the previous works. The shifting rates in TC with increase of hydrostatic pressures up to 5 kbar were determined as: dTC/dP = − (5.9 ± 0.1) deg/kbar and dTC/dP = − (6.3 ± 0.1) deg/kbar for Cr3□Te4 (1000 °C) by the magnetic induction and the electrical resistivity measurements, respectively, and dTC/dP = − (6.9 ± 0.4) deg/kbar for Cr7□Te8 (1000 °C), dTC/dP = − (5.3 ± 0.2) deg/kbar for Cr7□Te8 (400 °C) by the electrical resistivity measurements. Little difference in TC at atmospheric pressure and in the pressure effect on TC have been observed between Cr3□Te4 (1000 °C) and Cr3□Te4 (cooled slowly), unlike in the case of Cr7□Te8. The magnetic exchange interaction in the MLD‐type compound Cr1−δTe is also discussed.

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Section: Discussionmentioning

confidence: 99%

Effect of pressure on the Curie point of Cr1−δTe system with the Pseudo-NiAs-type structure

Ozawa

Yoshimi

Irie

et al. 1972

Phys. Stat. Sol. (a)

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“…Focusing on the Cr‐based systems, one has to point out the variety of their structural and magnetic properties. Numerous investigations on the Cr‐Te system show the existence of non‐stoichiometric Cr (1– x ) Te alloys with NiAs‐type crystal structure, having the trend to a formation of an ordered phase (e.g., Cr 3 Te 4 , Cr 2 Te 3 , Cr 5 Te 8 )5–7 in some Cr concentration regions, due to structural order of the vacancies in the Cr sub‐lattice. The same structure properties have been observed also for the Cr‐Se as well as Cr‐(Te, Se) systems,8,9 while their magnetic properties are substantially different.…”

Section: Introductionmentioning

confidence: 99%

Electronic Structure and Magnetic Properties of Chromium Chalcogenides and Pnictides with NiAs Structure

Polesya¹,

Kuhn²,

Benea

et al. 2013

Zeitschrift anorg allge chemie

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Abstract. The structural as well as electronic and magnetic properties of chromium chalcogenides and pnictides with NiAs structure were studied using the Korringa-Kohn-Rostoker (KKR) band structure method. The magnetic properties at finite temperature were investigated by means of Monte Carlo simulations on the basis of a classical Heisenberg Hamiltonian and the exchange coupling parameters calculated from first principles. Combination of ab initio electronic structure calculations with Monte Carlo simulations allowed to investigate both

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“…the 3d transition metal (TM) chalcogenides and pnictides, have attracted much interest for a long time due to their large variety of physical properties, particularly regarding the relationship between the magnetic ordering and the composition (see, e.g. [1][2][3][4][5]). Having the same structure, these compounds exhibit different bonding characteristics (chalcogenides have essentially an ionic bonding character in contrast to pnictide compounds) leading to different physico-chemical and magnetic properties.…”

Section: Introductionmentioning

confidence: 99%

Electronic structure and magnetic properties of Mn_1−xCr_xSb alloys

Kuhn¹,

Thubauville²,

Polesya³

et al. 2014

J. Phys.: Condens. Matter

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The electronic structure and magnetic properties of Mn₁-xCrxSb alloys were investigated for the full concentration range. The stability of the concentration-dependent magnetic structure of the alloys were analysed on the basis of spin-spiral calculations as well as using the Monte Carlo (MC) simulations based on the Heisenberg model with the exchange coupling parameters calculated from first-principles. A leading contribution to the canted magnetic structure in Mn₁-xCrxSb is the competition of the direct Cr-Cr and Mn-Mn exchange interactions having opposite signs. Furthermore, a strong impact of long-distance RKKY-type interactions is demonstrated. MC simulations at finite temperature were used to obtain the magnetic phase diagram for Mn₁-xCrxSb alloys, which is in reasonable agreement with the experimental data.

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Effect of pressure on the curie point of Cr₇□Te₈ with the NiAs‐type structure

Cited by 8 publications

References 6 publications

Effect of pressure on the Curie point of Cr1−δTe system with the Pseudo-NiAs-type structure

Effect of pressure on the Curie point of Cr1−δTe system with the Pseudo-NiAs-type structure

Electronic Structure and Magnetic Properties of Chromium Chalcogenides and Pnictides with NiAs Structure

Electronic structure and magnetic properties of Mn_1−xCr_xSb alloys

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Effect of pressure on the curie point of Cr7□Te8 with the NiAs‐type structure

Cited by 8 publications

References 6 publications

Effect of pressure on the Curie point of Cr1−δTe system with the Pseudo-NiAs-type structure

Effect of pressure on the Curie point of Cr1−δTe system with the Pseudo-NiAs-type structure

Electronic Structure and Magnetic Properties of Chromium Chalcogenides and Pnictides with NiAs Structure

Electronic structure and magnetic properties of Mn1−xCrxSb alloys

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Product

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Effect of pressure on the curie point of Cr₇□Te₈ with the NiAs‐type structure

Electronic structure and magnetic properties of Mn_1−xCr_xSb alloys