Local magnetic properties of multiferroic Nd0.5Gd0.5Fe3(BO3)4 in the excited states of Nd3+ ion

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

doi:10.1016/j.jmmm.2014.09.077

Local magnetic properties of multiferroic Nd_0.5Gd_0.5Fe₃(BO₃)₄ in the excited states of Nd³⁺ ion

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

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

12 Scopus citations

Abstract

Polarized absorption spectra of single-crystal Nd_0.5Gd_0.5Fe₃(BO₃)₄ were studied in the region of the transition ⁴I_9/2→(⁴G_5/2+²G_7/2) in Nd³⁺ ion as a function of temperature (2-34 K) and magnetic field (0-65 kOe). The spectra of natural circular dichroism were measured in the range of 5-40 K. It was found out that the local magnetic properties in the vicinity of the excited ion substantially depended on its state. In particular, a weak ferromagnetic moment appears in some excited states. It was found out that the selection rules for electron transitions in the magnetically ordered state substantially deviated from those in the paramagnetic state of the crystal. They are different for different transitions and they are very sensitive to the orientation of the sublattice magnetic moment relative to the light polarization. In the spectrum of the natural circular dichroism, the transition is revealed which is not observed in the absorption spectrum.

Original language	English
Pages (from-to)	153-163
Number of pages	11
Journal	Journal of Magnetism and Magnetic Materials
Volume	375
DOIs	https://doi.org/10.1016/j.jmmm.2014.09.077
State	Published - 1 Feb 2015
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2014, Elsevier B.V. All rights reserved.

Funding

The work was supported by the Russian Foundation for Basic Researches Grant 12-02-00026 and by the President of Russia grant No Nsh-2886.2014.2 .

Funders	Funder number
Russian Foundation for Basic Researches	Nsh-2886.2014.2, 12-02-00026

Keywords

Excited states
Local magnetic properties
Nd ion
f-f transitions

Access to Document

10.1016/j.jmmm.2014.09.077

Cite this

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title = "Local magnetic properties of multiferroic Nd0.5Gd0.5Fe3(BO3)4 in the excited states of Nd3+ ion",

abstract = "Polarized absorption spectra of single-crystal Nd0.5Gd0.5Fe3(BO3)4 were studied in the region of the transition 4I9/2→(4G5/2+2G7/2) in Nd3+ ion as a function of temperature (2-34 K) and magnetic field (0-65 kOe). The spectra of natural circular dichroism were measured in the range of 5-40 K. It was found out that the local magnetic properties in the vicinity of the excited ion substantially depended on its state. In particular, a weak ferromagnetic moment appears in some excited states. It was found out that the selection rules for electron transitions in the magnetically ordered state substantially deviated from those in the paramagnetic state of the crystal. They are different for different transitions and they are very sensitive to the orientation of the sublattice magnetic moment relative to the light polarization. In the spectrum of the natural circular dichroism, the transition is revealed which is not observed in the absorption spectrum.",

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

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

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T1 - Local magnetic properties of multiferroic Nd0.5Gd0.5Fe3(BO3)4 in the excited states of Nd3+ ion

AU - Malakhovskii, A. V.

AU - Gnatchenko, S. L.

AU - Kachur, I. S.

AU - Piryatinskaya, V. G.

AU - Sukhachev, A. L.

AU - Temerov, V. L.

PY - 2015/2/1

Y1 - 2015/2/1

N2 - Polarized absorption spectra of single-crystal Nd0.5Gd0.5Fe3(BO3)4 were studied in the region of the transition 4I9/2→(4G5/2+2G7/2) in Nd3+ ion as a function of temperature (2-34 K) and magnetic field (0-65 kOe). The spectra of natural circular dichroism were measured in the range of 5-40 K. It was found out that the local magnetic properties in the vicinity of the excited ion substantially depended on its state. In particular, a weak ferromagnetic moment appears in some excited states. It was found out that the selection rules for electron transitions in the magnetically ordered state substantially deviated from those in the paramagnetic state of the crystal. They are different for different transitions and they are very sensitive to the orientation of the sublattice magnetic moment relative to the light polarization. In the spectrum of the natural circular dichroism, the transition is revealed which is not observed in the absorption spectrum.

AB - Polarized absorption spectra of single-crystal Nd0.5Gd0.5Fe3(BO3)4 were studied in the region of the transition 4I9/2→(4G5/2+2G7/2) in Nd3+ ion as a function of temperature (2-34 K) and magnetic field (0-65 kOe). The spectra of natural circular dichroism were measured in the range of 5-40 K. It was found out that the local magnetic properties in the vicinity of the excited ion substantially depended on its state. In particular, a weak ferromagnetic moment appears in some excited states. It was found out that the selection rules for electron transitions in the magnetically ordered state substantially deviated from those in the paramagnetic state of the crystal. They are different for different transitions and they are very sensitive to the orientation of the sublattice magnetic moment relative to the light polarization. In the spectrum of the natural circular dichroism, the transition is revealed which is not observed in the absorption spectrum.

KW - Excited states

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KW - f-f transitions

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