EPR Study of Gd3+ local structure in ScF3 crystal with negative thermal expansion coefficient

A. Antuzevics; U. Rogulis; A. Fedotovs; Dz Berzins; V. N. Voronov; J. Purans

doi:10.1088/0031-8949/90/11/115801

EPR Study of Gd3+ local structure in ScF3 crystal with negative thermal expansion coefficient

A. Antuzevics
, U. Rogulis
, A. Fedotovs
, Dz Berzins
, V. N. Voronov
, J. Purans

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

8 Citations (Scopus)

Abstract

Zero field splitting (ZFS) of Gd³⁺ impurity in ScF₃ is studied by electron paramagnetic resonance at 77 and 295 K. ZFS parameter b₄ values obtained from angular dependence simulations show that regardless of negative thermal expansion in ScF₃ temperature dependence of |b₄| is similar to other cubic fluoroperovskites. Our analysis of ZFS parameters indicates that the local structure of Gd³⁺ centres expands positively with temperature.

Original language	English
Article number	115801
Journal	Physica Scripta
Volume	90
Issue number	11
DOIs	https://doi.org/10.1088/0031-8949/90/11/115801
Publication status	Published - 9 Oct 2015

Keywords

electron paramagnetic resonance
Gd+
negative thermal expansion
ScF

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10.1088/0031-8949/90/11/115801

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title = "EPR Study of Gd3+ local structure in ScF3 crystal with negative thermal expansion coefficient",

abstract = "Zero field splitting (ZFS) of Gd3+ impurity in ScF3 is studied by electron paramagnetic resonance at 77 and 295 K. ZFS parameter b4 values obtained from angular dependence simulations show that regardless of negative thermal expansion in ScF3 temperature dependence of |b4| is similar to other cubic fluoroperovskites. Our analysis of ZFS parameters indicates that the local structure of Gd3+ centres expands positively with temperature.",

keywords = "electron paramagnetic resonance, Gd+, negative thermal expansion, ScF",

author = "A. Antuzevics and U. Rogulis and A. Fedotovs and Dz Berzins and Voronov, \{V. N.\} and J. Purans",

note = "Publisher Copyright: {\textcopyright} 2015 The Royal Swedish Academy of Sciences.",

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T1 - EPR Study of Gd3+ local structure in ScF3 crystal with negative thermal expansion coefficient

AU - Antuzevics, A.

AU - Rogulis, U.

AU - Fedotovs, A.

AU - Berzins, Dz

AU - Voronov, V. N.

AU - Purans, J.

PY - 2015/10/9

Y1 - 2015/10/9

N2 - Zero field splitting (ZFS) of Gd3+ impurity in ScF3 is studied by electron paramagnetic resonance at 77 and 295 K. ZFS parameter b4 values obtained from angular dependence simulations show that regardless of negative thermal expansion in ScF3 temperature dependence of |b4| is similar to other cubic fluoroperovskites. Our analysis of ZFS parameters indicates that the local structure of Gd3+ centres expands positively with temperature.

AB - Zero field splitting (ZFS) of Gd3+ impurity in ScF3 is studied by electron paramagnetic resonance at 77 and 295 K. ZFS parameter b4 values obtained from angular dependence simulations show that regardless of negative thermal expansion in ScF3 temperature dependence of |b4| is similar to other cubic fluoroperovskites. Our analysis of ZFS parameters indicates that the local structure of Gd3+ centres expands positively with temperature.

KW - electron paramagnetic resonance

KW - Gd+

KW - negative thermal expansion

KW - ScF

UR - https://www.scopus.com/pages/publications/84946866077

U2 - 10.1088/0031-8949/90/11/115801

DO - 10.1088/0031-8949/90/11/115801

M3 - Article

AN - SCOPUS:84946866077

SN - 0031-8949

VL - 90

JO - Physica Scripta

JF - Physica Scripta

IS - 11

M1 - 115801

ER -

EPR Study of Gd3+ local structure in ScF3 crystal with negative thermal expansion coefficient

Abstract

Keywords

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