Rigorous ESR spectroscopy of Fe3+impurity ion with oxygen vacancy in ferroelectric SrTiO3crystal at 20 mK

M.A. Hosain , J-M Le Floch , Jerzy Krupka , Michael E. Tobar

Abstract

Impurity Fe3+ ion electron spin resonance (ESR) spectroscopy using multiple dielectric modes in a SrTiO3 dielectric resonator has been performed with a tunable DC magnetic field of up to 1.6 T. The Ti ion is substituted by Fe3+ ion forming FeO6 octahedral complex with an iron-oxygen-vacancy (Fe). In such a metal-ligand complex, a giant g-factor of was observed in the ferroelectric phase at 20 mK. The change of Fe3+ ion center-symmetry in the FeO6 complex as a soft-mode characteristics of ferroelectric phase transition and the influences of iron-oxygen-vacancy (Fe), are interactively sensitive to asymmetry in the octahedral rotational parameter Φ in SrTiO3.
Author M.A. Hosain - [University of Western Australia]
M.A. Hosain,,
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, J-M Le Floch - [University of Western Australia]
J-M Le Floch,,
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, Jerzy Krupka (FEIT / MO)
Jerzy Krupka,,
- The Institute of Microelectronics and Optoelectronics
, Michael E. Tobar - [University of Western Australia]
Michael E. Tobar,,
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Journal seriesJournal of Physics-Condensed Matter, ISSN 0953-8984, [1361-648X], (A 30 pkt)
Issue year2018
Vol30
No29
Pages1-6
ASJC Classification3104 Condensed Matter Physics; 2500 General Materials Science
DOIDOI:10.1088/1361-648X/aacc05
URL http://iopscience.iop.org/article/10.1088/1361-648X/aacc05/meta
Languageen angielski
Score (nominal)30
Score sourcejournalList
ScoreMinisterial score = 30.0, 17-12-2019, ArticleFromJournal
Publication indicators WoS Citations = 0; Scopus Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 0.99; WoS Impact Factor: 2018 = 2.711 (2) - 2018=2.595 (5)
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