Experimental evidences of the shape-induced structural distortion of SrTiO3 single crystals from impurity Mn4+ ions electron paramagnetic resonance
A study of high-quality SrTiO3 single crystals doped with the Mn4+ ions in the cubic phase (T > 105 K) with X-band electron paramagnetic resonance reveals direct correspondence between a shape of a sample and magnetic anisotropy of the impurity Mn4+ centers. In particular, for a sample with the s...
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| Format: | Article |
| Language: | English |
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Kazan Federal University
2018-09-01
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| Series: | Magnetic Resonance in Solids |
| Subjects: | |
| Online Access: | http://mrsej.kpfu.ru/contents/2018/MRSej_18201.pdf |
| _version_ | 1828482115358949376 |
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| author | B.F. Gabbasov I.N. Gracheva S.I. Nikitin D.G. Zverev A. Dejneka V.A. Trepakov R.V. Yusupov |
| author_facet | B.F. Gabbasov I.N. Gracheva S.I. Nikitin D.G. Zverev A. Dejneka V.A. Trepakov R.V. Yusupov |
| author_sort | B.F. Gabbasov |
| collection | DOAJ |
| description | A study of high-quality SrTiO3 single crystals doped with the Mn4+ ions in the cubic phase (T > 105 K) with X-band electron paramagnetic resonance reveals direct correspondence between a shape of a sample and magnetic anisotropy of the impurity Mn4+ centers. In particular, for a sample with the shape of a square base rectangular prism, a size of (a × a × h) and faces perpendicular to the <100> crystallographic directions, zero-field splitting parameter D is approximately proportional to (a / h − 1) quantity. Temperature dependence of D indicates that this peculiar symmetry lowering is a feature characteristic for the cubic Fm3m phase of the strontium titanate. Diminishing of the D value with the decrease of the surface roughness for a thin (001)-oriented SrTiO3:Mn platelet shows that the observed effect originates from the sample surface. |
| first_indexed | 2024-12-11T08:08:40Z |
| format | Article |
| id | doaj.art-6c485fd298d34bcaa6567900c69af2cb |
| institution | Directory Open Access Journal |
| issn | 2072-5981 |
| language | English |
| last_indexed | 2024-12-11T08:08:40Z |
| publishDate | 2018-09-01 |
| publisher | Kazan Federal University |
| record_format | Article |
| series | Magnetic Resonance in Solids |
| spelling | doaj.art-6c485fd298d34bcaa6567900c69af2cb2022-12-22T01:14:56ZengKazan Federal UniversityMagnetic Resonance in Solids2072-59812018-09-0120218201Experimental evidences of the shape-induced structural distortion of SrTiO3 single crystals from impurity Mn4+ ions electron paramagnetic resonanceB.F. Gabbasov0I.N. Gracheva1S.I. Nikitin2D.G. Zverev3A. Dejneka4V.A. Trepakov5R.V. Yusupov6Kazan Federal University, Kremlevskaya 18, Kazan 420008, RussiaKazan Federal University, Kremlevskaya 18, Kazan 420008, RussiaKazan Federal University, Kremlevskaya 18, Kazan 420008, RussiaKazan Federal University, Kremlevskaya 18, Kazan 420008, RussiaInstitute of Physics, ASCR, v.v.i. Na Slovance 2, 18221 Prague, Czech RepublicInstitute of Physics, ASCR, v.v.i. Na Slovance 2, 18221 Prague, Czech Republic; Ioffe Physical-Technical Institute, Russian Academy of Sciences, 194021 St. Petersburg, RussiaKazan Federal University, Kremlevskaya 18, Kazan 420008, RussiaA study of high-quality SrTiO3 single crystals doped with the Mn4+ ions in the cubic phase (T > 105 K) with X-band electron paramagnetic resonance reveals direct correspondence between a shape of a sample and magnetic anisotropy of the impurity Mn4+ centers. In particular, for a sample with the shape of a square base rectangular prism, a size of (a × a × h) and faces perpendicular to the <100> crystallographic directions, zero-field splitting parameter D is approximately proportional to (a / h − 1) quantity. Temperature dependence of D indicates that this peculiar symmetry lowering is a feature characteristic for the cubic Fm3m phase of the strontium titanate. Diminishing of the D value with the decrease of the surface roughness for a thin (001)-oriented SrTiO3:Mn platelet shows that the observed effect originates from the sample surface.http://mrsej.kpfu.ru/contents/2018/MRSej_18201.pdfstrontium titanateimpurityelectron paramagnetic resonancesurface-induced effectparamagnetic probe |
| spellingShingle | B.F. Gabbasov I.N. Gracheva S.I. Nikitin D.G. Zverev A. Dejneka V.A. Trepakov R.V. Yusupov Experimental evidences of the shape-induced structural distortion of SrTiO3 single crystals from impurity Mn4+ ions electron paramagnetic resonance Magnetic Resonance in Solids strontium titanate impurity electron paramagnetic resonance surface-induced effect paramagnetic probe |
| title | Experimental evidences of the shape-induced structural distortion of SrTiO3 single crystals from impurity Mn4+ ions electron paramagnetic resonance |
| title_full | Experimental evidences of the shape-induced structural distortion of SrTiO3 single crystals from impurity Mn4+ ions electron paramagnetic resonance |
| title_fullStr | Experimental evidences of the shape-induced structural distortion of SrTiO3 single crystals from impurity Mn4+ ions electron paramagnetic resonance |
| title_full_unstemmed | Experimental evidences of the shape-induced structural distortion of SrTiO3 single crystals from impurity Mn4+ ions electron paramagnetic resonance |
| title_short | Experimental evidences of the shape-induced structural distortion of SrTiO3 single crystals from impurity Mn4+ ions electron paramagnetic resonance |
| title_sort | experimental evidences of the shape induced structural distortion of srtio3 single crystals from impurity mn4 ions electron paramagnetic resonance |
| topic | strontium titanate impurity electron paramagnetic resonance surface-induced effect paramagnetic probe |
| url | http://mrsej.kpfu.ru/contents/2018/MRSej_18201.pdf |
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