Field-induced magnetic phase transitions in the Yafet-Kittel model

Kolmakova, N. P.; Kolonogii, S. A.; Nekrasova, M. Yu.; Levitin, R. Z.

doi:10.1134/1.1131063

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…In a simple model of a two-sublattice magnet applicable to what we expect for CeRhIn 5 , a complicated phase diagram with many field-induced transitions of either first or second order can be realized. 8 Though this model treats both of the sublattices as having AF correlations ͑whereas only one sublattice would have AF correlations in CeRhIn 5 ), the general conclusions should be similar, and the model gives good qualitative agreement to the experimental results. The value of B M rises as temperature is increased with a very rapid increase as T nears T N .…”

Section: B Magnetizationmentioning

confidence: 81%

Anisotropic electronic and magnetic properties of the quasi-two-dimensional heavy-fermion antiferromagnetCeRhIn5

et al. 2000

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We have used high pulsed magnetic fields to 50 T to observe de Haas-van Alphen oscillations in the tetragonal antiferromagnet CeRhIn 5 , which has an enhanced value of the electronic specific heat coefficient ␥տ420 mJ/mol K 2 . For TϽT N , the specific heat data at zero applied magnetic field are consistent with the existence of an anisotropic spin-density wave opening a gap in the Fermi surface. The low-temperature magnetization reveals a magnetic phase transition that appears to be first order in nature. Quantum oscillations, which are observed for TϽT N when Bʈ͓100͔ and Bʈ͓001͔, reveal an anisotropic Fermi surface. The temperature dependence of the amplitudes of the quantum oscillations shows anomalous behavior for Bʈ͓001͔ as a maximum at T*Ϸ1.2 K is observed which we attribute to a gap opening in the anisotropic Fermi surface. The electronic and magnetic properties are anisotropic due to the quasi-two-dimensional crystal structure.

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Section: B Magnetizationmentioning

confidence: 81%

Anisotropic electronic and magnetic properties of the quasi-two-dimensional heavy-fermion antiferromagnetCeRhIn5

et al. 2000

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Magnetic Phase Separation in Double Perovskite Sr2TiMnO5.87

et al. 2023

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Features of the magnetic properties of rare-earth intermetallides RMn2Ge2 (Review)

Kolmakova

Sidorenko

Levitin

2002

Low Temperature Physics

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The magnetic and other physical properties of the ternary intermetallic compounds RMn2Ge2 (R is a rare earth) are of great interest on account of effects due to the coexistence of the 3d (manganese) and 4f (rare-earth) magnetic subsystems. The layered structure, the high sensitivity of the exchange parameters to the interatomic distances, the antiferromagnetic exchange interaction in the manganese subsystem in intermetallides containing heavy rare earths, and also the appreciable crystal-field effects in the rare-earth subsystem make for complex magnetic phase diagrams in these compounds. A review is given of the experimental and theoretical research on the magnetic properties and magnetic phase diagrams of the intermetallic compounds RMn2Ge2, including measurements in high and ultrahigh magnetic fields. A theoretical model is proposed which takes into account the features of the crystal structure and the hierarchy of exchange interactions in intermetallides containing heavy rare earths; this model is in many cases capable of describing the magnetic properties of these intermetallides over a wide range of magnetic fields and temperatures, and it permits determination of the interaction parameters for RMn2Ge2 compounds with R=Gd and Dy from a comparison of the experimental and calculated magnetization curves and H–T phase diagrams.

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Field-induced magnetic phase transitions in the Yafet-Kittel model

Cited by 3 publications

References 4 publications

Anisotropic electronic and magnetic properties of the quasi-two-dimensional heavy-fermion antiferromagnetCeRhIn5

Anisotropic electronic and magnetic properties of the quasi-two-dimensional heavy-fermion antiferromagnetCeRhIn5

Magnetic Phase Separation in Double Perovskite Sr2TiMnO5.87

Features of the magnetic properties of rare-earth intermetallides RMn2Ge2 (Review)

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