Magnetic field induced local structural transformations in the optically excited states                          5                         F                         2                          and                          5                         F                         3                          of HoFe                         3                         (BO                         3                         )                         4                          single crystal

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

doi:10.1016/j.jmmm.2018.12.078

Magnetic field induced local structural transformations in the optically excited states ⁵ F ₂ and ⁵ F ₃ of HoFe ₃ (BO ₃ ) ₄ single crystal

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

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

6 Scopus citations

Abstract

We measured absorption spectra of transitions ⁵ I ₈ → ⁵ F ₂ , ⁵ F ₃ in Ho ³⁺ ion in the HoFe ₃ (BO ₃ ) ₄ single crystal at temperature 2 K as a function of magnetic field 0–65 kOe directed along a and c axes. The spectra were decomposed to the Lorentz shape components and magnetic field dependences of their parameters: position, intensity and line width, were obtained. Substantial difference between dependences of the energy and intensity of the transitions on magnetic field was revealed. So, the abrupt changes of the electron transition energies were mainly observed at the reorientation magnetic phase transitions in the crystal. A number of singularities in the magnetic field dependences of the electron transition intensities were revealed both at the reorientation transitions and outside of them. The singularities in the average intensities of transitions into multiplets at the reorientation magnetic transitions are due to the changes of the odd part of the crystal field, responsible for the allowance of f-f transitions, and also are due to the changes of the magnetic state. The singularities in behavior of intensity of each separate transition are due to the local even distortions in the excited states, which mix the electron states.

Original language	English
Pages (from-to)	177-182
Number of pages	6
Journal	Journal of Magnetism and Magnetic Materials
Volume	476
DOIs	https://doi.org/10.1016/j.jmmm.2018.12.078
State	Published - 15 Apr 2019
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2018 Elsevier B.V.

Funding

A.V. Malakhovskii acknowledges the support from the Russian Foundation for Basic Researches grant 16-02-00273 and from the Project of Russian Academy of Science No. 0356-2017-0030 . A.V. Malakhovskii acknowledges the support from the Russian Foundation for Basic Researches grant 16-02-00273 and from the Project of Russian Academy of Science No. 0356-2017-0030.

Funders	Funder number
Russian Academy of Science
Russian Foundation for Basic Research	16-02-00273
Russian Academy of Sciences	0356-2017-0030

Keywords

Excited states
Ho ion
Local properties
f-f transitions

Access to Document

10.1016/j.jmmm.2018.12.078

Cite this

Malakhovskii, A. V., Gnatchenko, S. L., Kachur, I. S., Piryatinskaya, V. G., & Gudim, I. A. (2019). Magnetic field induced local structural transformations in the optically excited states ⁵ F ₂ and ⁵ F ₃ of HoFe ₃ (BO ₃ ) ₄ single crystal Journal of Magnetism and Magnetic Materials, 476, 177-182. https://doi.org/10.1016/j.jmmm.2018.12.078

Malakhovskii, A. V. ; Gnatchenko, S. L. ; Kachur, I. S. et al. / Magnetic field induced local structural transformations in the optically excited states ⁵ F ₂ and ⁵ F ₃ of HoFe ₃ (BO ₃ ) ₄ single crystal In: Journal of Magnetism and Magnetic Materials. 2019 ; Vol. 476. pp. 177-182.

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title = " Magnetic field induced local structural transformations in the optically excited states 5 F 2 and 5 F 3 of HoFe 3 (BO 3 ) 4 single crystal ",

abstract = " We measured absorption spectra of transitions 5 I 8 → 5 F 2 , 5 F 3 in Ho 3+ ion in the HoFe 3 (BO 3 ) 4 single crystal at temperature 2 K as a function of magnetic field 0–65 kOe directed along a and c axes. The spectra were decomposed to the Lorentz shape components and magnetic field dependences of their parameters: position, intensity and line width, were obtained. Substantial difference between dependences of the energy and intensity of the transitions on magnetic field was revealed. So, the abrupt changes of the electron transition energies were mainly observed at the reorientation magnetic phase transitions in the crystal. A number of singularities in the magnetic field dependences of the electron transition intensities were revealed both at the reorientation transitions and outside of them. The singularities in the average intensities of transitions into multiplets at the reorientation magnetic transitions are due to the changes of the odd part of the crystal field, responsible for the allowance of f-f transitions, and also are due to the changes of the magnetic state. The singularities in behavior of intensity of each separate transition are due to the local even distortions in the excited states, which mix the electron states.",

keywords = "Excited states, Ho ion, Local properties, f-f transitions",

author = "Malakhovskii, {A. V.} and Gnatchenko, {S. L.} and Kachur, {I. S.} and Piryatinskaya, {V. G.} and Gudim, {I. A.}",

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year = "2019",

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Malakhovskii, AV, Gnatchenko, SL, Kachur, IS, Piryatinskaya, VG & Gudim, IA 2019, ' Magnetic field induced local structural transformations in the optically excited states ⁵ F ₂ and ⁵ F ₃ of HoFe ₃ (BO ₃ ) ₄ single crystal ', Journal of Magnetism and Magnetic Materials, vol. 476, pp. 177-182. https://doi.org/10.1016/j.jmmm.2018.12.078

Magnetic field induced local structural transformations in the optically excited states ⁵ F ₂ and ⁵ F ₃ of HoFe ₃ (BO ₃ ) ₄ single crystal . / Malakhovskii, A. V.; Gnatchenko, S. L.; Kachur, I. S. et al.
In: Journal of Magnetism and Magnetic Materials, Vol. 476, 15.04.2019, p. 177-182.

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

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T1 - Magnetic field induced local structural transformations in the optically excited states 5 F 2 and 5 F 3 of HoFe 3 (BO 3 ) 4 single crystal

AU - Malakhovskii, A. V.

AU - Gnatchenko, S. L.

AU - Kachur, I. S.

AU - Piryatinskaya, V. G.

AU - Gudim, I. A.

PY - 2019/4/15

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N2 - We measured absorption spectra of transitions 5 I 8 → 5 F 2 , 5 F 3 in Ho 3+ ion in the HoFe 3 (BO 3 ) 4 single crystal at temperature 2 K as a function of magnetic field 0–65 kOe directed along a and c axes. The spectra were decomposed to the Lorentz shape components and magnetic field dependences of their parameters: position, intensity and line width, were obtained. Substantial difference between dependences of the energy and intensity of the transitions on magnetic field was revealed. So, the abrupt changes of the electron transition energies were mainly observed at the reorientation magnetic phase transitions in the crystal. A number of singularities in the magnetic field dependences of the electron transition intensities were revealed both at the reorientation transitions and outside of them. The singularities in the average intensities of transitions into multiplets at the reorientation magnetic transitions are due to the changes of the odd part of the crystal field, responsible for the allowance of f-f transitions, and also are due to the changes of the magnetic state. The singularities in behavior of intensity of each separate transition are due to the local even distortions in the excited states, which mix the electron states.

AB - We measured absorption spectra of transitions 5 I 8 → 5 F 2 , 5 F 3 in Ho 3+ ion in the HoFe 3 (BO 3 ) 4 single crystal at temperature 2 K as a function of magnetic field 0–65 kOe directed along a and c axes. The spectra were decomposed to the Lorentz shape components and magnetic field dependences of their parameters: position, intensity and line width, were obtained. Substantial difference between dependences of the energy and intensity of the transitions on magnetic field was revealed. So, the abrupt changes of the electron transition energies were mainly observed at the reorientation magnetic phase transitions in the crystal. A number of singularities in the magnetic field dependences of the electron transition intensities were revealed both at the reorientation transitions and outside of them. The singularities in the average intensities of transitions into multiplets at the reorientation magnetic transitions are due to the changes of the odd part of the crystal field, responsible for the allowance of f-f transitions, and also are due to the changes of the magnetic state. The singularities in behavior of intensity of each separate transition are due to the local even distortions in the excited states, which mix the electron states.

KW - Excited states

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KW - Local properties

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Malakhovskii AV, Gnatchenko SL, Kachur IS, Piryatinskaya VG, Gudim IA. Magnetic field induced local structural transformations in the optically excited states ⁵ F ₂ and ⁵ F ₃ of HoFe ₃ (BO ₃ ) ₄ single crystal Journal of Magnetism and Magnetic Materials. 2019 Apr 15;476:177-182. doi: 10.1016/j.jmmm.2018.12.078