Specific features of Nd3+ Kramers doublets' splitting in an antiferromagnetic crystal NdFe3(BO3)4 in an external magnetic field

S. L. Gnatchenko; I. S. Kachur; V. S. Kurnosov; V. G. Piryatinskaya; A. V. Malakhovskii; I. A. Gudim

doi:10.1063/1.5116545

Specific features of Nd³⁺ Kramers doublets' splitting in an antiferromagnetic crystal NdFe₃(BO₃)₄ in an external magnetic field

S. L. Gnatchenko
, I. S. Kachur
, V. S. Kurnosov
, V. G. Piryatinskaya
, A. V. Malakhovskii
, I. A. Gudim

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The optical absorption spectra of an easy-plane NdFe₃(BO₃)₄ antiferromagnet are measured in the region of the ⁴I_9/2 → ²H_11/2 transition of the of Nd³⁺ ion. The study is performed in the 2-35 K temperature range, in external magnetic fields of up to 65 kOe directed both along the C₃ axis and the basal plane of the crystal. The splitting values of the Nd³⁺ excited states in the exchange field of the Fe³⁺ subsystem and the g-factors of the ²H_11/2 multiplet states are determined. The nontrivial dependences of the splitting of some Nd³⁺ states in a magnetic field indicate that these states have anisotropic Fe-Nd exchange interaction.

Original language	English
Pages (from-to)	928-933
Number of pages	6
Journal	Low Temperature Physics
Volume	45
Issue number	8
DOIs	https://doi.org/10.1063/1.5116545
State	Published - 1 Aug 2019
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2019 Author(s).

Funding

A. V. Malakhovskii is grateful for the financial support provided by the RFBR Grant No. 19-02-00034.

Funders	Funder number
Russian Foundation for Basic Research	19-02-00034

Access to Document

10.1063/1.5116545

Cite this

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title = "Specific features of Nd3+ Kramers doublets' splitting in an antiferromagnetic crystal NdFe3(BO3)4 in an external magnetic field",

abstract = "The optical absorption spectra of an easy-plane NdFe3(BO3)4 antiferromagnet are measured in the region of the 4I9/2 → 2H11/2 transition of the of Nd3+ ion. The study is performed in the 2-35 K temperature range, in external magnetic fields of up to 65 kOe directed both along the C3 axis and the basal plane of the crystal. The splitting values of the Nd3+ excited states in the exchange field of the Fe3+ subsystem and the g-factors of the 2H11/2 multiplet states are determined. The nontrivial dependences of the splitting of some Nd3+ states in a magnetic field indicate that these states have anisotropic Fe-Nd exchange interaction.",

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AU - Kurnosov, V. S.

AU - Piryatinskaya, V. G.

AU - Malakhovskii, A. V.

AU - Gudim, I. A.

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AB - The optical absorption spectra of an easy-plane NdFe3(BO3)4 antiferromagnet are measured in the region of the 4I9/2 → 2H11/2 transition of the of Nd3+ ion. The study is performed in the 2-35 K temperature range, in external magnetic fields of up to 65 kOe directed both along the C3 axis and the basal plane of the crystal. The splitting values of the Nd3+ excited states in the exchange field of the Fe3+ subsystem and the g-factors of the 2H11/2 multiplet states are determined. The nontrivial dependences of the splitting of some Nd3+ states in a magnetic field indicate that these states have anisotropic Fe-Nd exchange interaction.

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