Magnetic field effect on the electric permittivity of rare-earth aluminium borates

Slavin, V. V.; Zvyagin, A. A.; Zvyagina, G. A.; Piryatinskaya, V. G.

doi:10.1063/10.0026087

Low Temperature Physics

2024

DOI: 10.1063/10.0026087

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Magnetic field effect on the electric permittivity of rare-earth aluminium borates

V. V. Slavin,

A. A. Zvyagin,

G. A. Zvyagina

et al.

Abstract: The renormalization of the electric permittivity of rare-earth aluminium borates is studied theoretically from the first principles. It is shown how the electric permittivity depends on the external magnetic field and temperature for several compounds of rare-earth ions of that class.

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Structure and Magnetic Properties of a Family of Two-Leg Spin Ladder Compounds Ba₂RE₂Ge₄O₁₃ (RE = Pr, Nd, and Gd–Ho)

Zhou,

Liu,

Song

et al. 2024

Inorg. Chem.

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Compared with the intensive investigation on 3d transition metal (TM)-based spin ladder compounds, less attention has been paid to the ones constructed by rare earth (RE) ions. Herein, we report a family of RE-based spin ladder compounds Ba 2 RE 2 Ge 4 O 13 (RE = Pr, Nd, Gd−Ho) crystallized into a monoclinic structure with the space group C2/c. The RE ions are arranged on a two-leg spin ladder motif along the b-axis, where the rung and leg exchange interactions are bridged via RE−O−RE pathways and RE−O−Ge−O−RE routes, respectively. Moreover, the much shorter rung distance in RE 2 O 12 dimer units than the leg distance suggests that Ba 2 RE 2 Ge 4 O 13 compounds are strong-rung spin ladder systems. All of the synthesized Ba 2 RE 2 Ge 4 O 13 (RE = Pr, Nd, Gd−Ho) compounds exhibit dominant antiferromagnetic (AFM) interactions and the absence of magnetic order down to 1.8 K. Among the family members, Ba 2 Dy 2 Ge 4 O 13 can be described by J eff = 1/2 Kramers doublet states, and the low-temperature specific heat indicates the coexistence of the spin-dimerized state with a broad maximum at ∼2.4 K and long-range AFM order with T N = 0.81 K. This family of Ba 2 RE 2 Ge 4 O 13 compounds thereby provides a rare platform to investigate the novel spin ladder physics constructed by 4f electrons.

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Structure and Magnetic Properties of a Family of Two-Leg Spin Ladder Compounds Ba₂RE₂Ge₄O₁₃ (RE = Pr, Nd, and Gd–Ho)

Zhou,

Liu,

Song

et al. 2024

Inorg. Chem.

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show abstract

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Magnetic field effect on the electric permittivity of rare-earth aluminium borates

Abstract: The renormalization of the electric permittivity of rare-earth aluminium borates is studied theoretically from the first principles. It is shown how the electric permittivity depends on the external magnetic field and temperature for several compounds of rare-earth ions of that class.

Cited by 1 publication

References 26 publications

Structure and Magnetic Properties of a Family of Two-Leg Spin Ladder Compounds Ba₂RE₂Ge₄O₁₃ (RE = Pr, Nd, and Gd–Ho)

Structure and Magnetic Properties of a Family of Two-Leg Spin Ladder Compounds Ba₂RE₂Ge₄O₁₃ (RE = Pr, Nd, and Gd–Ho)

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Magnetic field effect on the electric permittivity of rare-earth aluminium borates

Abstract: The renormalization of the electric permittivity of rare-earth aluminium borates is studied theoretically from the first principles. It is shown how the electric permittivity depends on the external magnetic field and temperature for several compounds of rare-earth ions of that class.

Cited by 1 publication

References 26 publications

Structure and Magnetic Properties of a Family of Two-Leg Spin Ladder Compounds Ba2RE2Ge4O13 (RE = Pr, Nd, and Gd–Ho)

Structure and Magnetic Properties of a Family of Two-Leg Spin Ladder Compounds Ba2RE2Ge4O13 (RE = Pr, Nd, and Gd–Ho)

Contact Info

Product

Resources

About

Structure and Magnetic Properties of a Family of Two-Leg Spin Ladder Compounds Ba₂RE₂Ge₄O₁₃ (RE = Pr, Nd, and Gd–Ho)

Structure and Magnetic Properties of a Family of Two-Leg Spin Ladder Compounds Ba₂RE₂Ge₄O₁₃ (RE = Pr, Nd, and Gd–Ho)