Comparison of the Absorption Spectra of Nd3+ Ions in the NdFe3(BO3)4, Nd0.5Gd0.5Fe3(BO3)4, and Ho0.75Nd0.25Fe3(BO3)4 Crystals

A. L. Sukhachev; A. V. Malakhovskii; C. S. Nelson; I. A. Gudim; V. L. Temerov

doi:10.1134/s1063783421010200

Comparison of the Absorption Spectra of Nd³⁺ Ions in the NdFe₃(BO₃)₄, Nd_0.5Gd_0.5Fe₃(BO₃)₄, and Ho_0.75Nd_0.25Fe₃(BO₃)₄ Crystals

A. L. Sukhachev
, A. V. Malakhovskii
, C. S. Nelson
, I. A. Gudim
, V. L. Temerov

RAS - Kirensky Institute of Physics, Siberian Branch
Brookhaven National Laboratory

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

1 Scopus citations

Abstract

Abstract: The polarized optical absorption spectra in the region of a series of the f–f transitions of Nd³⁺ ions in the Ho_0.75Nd_0.25Fe₃(BO₃)₄, Nd_0.5Gd_0.5Fe₃(BO₃)₄, and NdFe₃(BO₃)₄ crystals at 90 K have been compared. The spectral features related to the difference in the local environment of Nd³⁺ ions in these crystals have been established. In the region of the transition ⁴I_9/2 → ⁴G_5/2 + ²G_7/2 of Nd³⁺ ions in the Ho_0.75Nd_0.25Fe₃(BO₃)₄ crystal, the appearance of some absorption lines at the structural transition R32 → P3₁21 around ~200 K due to the local symmetry variation has been found. The intensity of these lines smoothly increases with a decrease in temperature from the transition point. The temperature dependence of the lattice parameters of the Ho_0.75Nd_0.25Fe₃(BO₃)₄ crystal has been measured. It has been found that, at the transition temperature, the lattice parameter a changes stepwise, which is indicative of the occurrence of a first-order phase transition. The lattice parameter c changes smoothly.

Original language	English
Pages (from-to)	113-121
Number of pages	9
Journal	Physics of the Solid State
Volume	63
Issue number	1
DOIs	https://doi.org/10.1134/s1063783421010200
State	Published - Jan 2021
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2021, Pleiades Publishing, Ltd.

Funding

The reported study was funded by Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Regional Fund of Science, to the research project: number 19-42-240003 “Influence of the local en-vironment on magneto-optical properties of f–f transitions in rare-earth aluminum and iron borates.”

Funders	Funder number
Russian Foundation for Basic Research	19-42-240003

Keywords

f–f electronic transitions
hantite-structure ferroborates
neodymium
structural transition

Access to Document

10.1134/s1063783421010200

Cite this

@article{2f45f54f905e43d8a9ae626fac39d468,

title = "Comparison of the Absorption Spectra of Nd3+ Ions in the NdFe3(BO3)4, Nd0.5Gd0.5Fe3(BO3)4, and Ho0.75Nd0.25Fe3(BO3)4 Crystals",

abstract = "Abstract: The polarized optical absorption spectra in the region of a series of the f–f transitions of Nd3+ ions in the Ho0.75Nd0.25Fe3(BO3)4, Nd0.5Gd0.5Fe3(BO3)4, and NdFe3(BO3)4 crystals at 90 K have been compared. The spectral features related to the difference in the local environment of Nd3+ ions in these crystals have been established. In the region of the transition 4I9/2 → 4G5/2 + 2G7/2 of Nd3+ ions in the Ho0.75Nd0.25Fe3(BO3)4 crystal, the appearance of some absorption lines at the structural transition R32 → P3121 around \textasciitilde{}200 K due to the local symmetry variation has been found. The intensity of these lines smoothly increases with a decrease in temperature from the transition point. The temperature dependence of the lattice parameters of the Ho0.75Nd0.25Fe3(BO3)4 crystal has been measured. It has been found that, at the transition temperature, the lattice parameter a changes stepwise, which is indicative of the occurrence of a first-order phase transition. The lattice parameter c changes smoothly.",

keywords = "f–f electronic transitions, hantite-structure ferroborates, neodymium, structural transition",

author = "Sukhachev, \{A. L.\} and Malakhovskii, \{A. V.\} and Nelson, \{C. S.\} and Gudim, \{I. A.\} and Temerov, \{V. L.\}",

note = "Publisher Copyright: {\textcopyright} 2021, Pleiades Publishing, Ltd.",

year = "2021",

month = jan,

doi = "10.1134/s1063783421010200",

language = "אנגלית",

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T1 - Comparison of the Absorption Spectra of Nd3+ Ions in the NdFe3(BO3)4, Nd0.5Gd0.5Fe3(BO3)4, and Ho0.75Nd0.25Fe3(BO3)4 Crystals

AU - Sukhachev, A. L.

AU - Malakhovskii, A. V.

AU - Nelson, C. S.

AU - Gudim, I. A.

AU - Temerov, V. L.

PY - 2021/1

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N2 - Abstract: The polarized optical absorption spectra in the region of a series of the f–f transitions of Nd3+ ions in the Ho0.75Nd0.25Fe3(BO3)4, Nd0.5Gd0.5Fe3(BO3)4, and NdFe3(BO3)4 crystals at 90 K have been compared. The spectral features related to the difference in the local environment of Nd3+ ions in these crystals have been established. In the region of the transition 4I9/2 → 4G5/2 + 2G7/2 of Nd3+ ions in the Ho0.75Nd0.25Fe3(BO3)4 crystal, the appearance of some absorption lines at the structural transition R32 → P3121 around ~200 K due to the local symmetry variation has been found. The intensity of these lines smoothly increases with a decrease in temperature from the transition point. The temperature dependence of the lattice parameters of the Ho0.75Nd0.25Fe3(BO3)4 crystal has been measured. It has been found that, at the transition temperature, the lattice parameter a changes stepwise, which is indicative of the occurrence of a first-order phase transition. The lattice parameter c changes smoothly.

AB - Abstract: The polarized optical absorption spectra in the region of a series of the f–f transitions of Nd3+ ions in the Ho0.75Nd0.25Fe3(BO3)4, Nd0.5Gd0.5Fe3(BO3)4, and NdFe3(BO3)4 crystals at 90 K have been compared. The spectral features related to the difference in the local environment of Nd3+ ions in these crystals have been established. In the region of the transition 4I9/2 → 4G5/2 + 2G7/2 of Nd3+ ions in the Ho0.75Nd0.25Fe3(BO3)4 crystal, the appearance of some absorption lines at the structural transition R32 → P3121 around ~200 K due to the local symmetry variation has been found. The intensity of these lines smoothly increases with a decrease in temperature from the transition point. The temperature dependence of the lattice parameters of the Ho0.75Nd0.25Fe3(BO3)4 crystal has been measured. It has been found that, at the transition temperature, the lattice parameter a changes stepwise, which is indicative of the occurrence of a first-order phase transition. The lattice parameter c changes smoothly.

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KW - hantite-structure ferroborates

KW - neodymium

KW - structural transition

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