Structural instability and lattice site occupation of Mn2+ ions in the SrTiO3 quantum paraelectric
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F24%3APU152408" target="_blank" >RIV/00216305:26620/24:PU152408 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/24:00588423
Result on the web
<a href="https://journals.aps.org/prb/abstract/10.1103/PhysRevB.110.024114" target="_blank" >https://journals.aps.org/prb/abstract/10.1103/PhysRevB.110.024114</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.110.024114" target="_blank" >10.1103/PhysRevB.110.024114</a>
Alternative languages
Result language
angličtina
Original language name
Structural instability and lattice site occupation of Mn2+ ions in the SrTiO3 quantum paraelectric
Original language description
Strontium titanate (SrTiO3) is the most known material from the family of quantum paraelectrics. Thanks to its extremely "soft" lattice, its functionality can be easily tuned by applying both external stimuli (pressure, strain, electric field) and through doping or isotope exchange. In this paper, we present the results of a detailed study of two Mn2+ centers in Mn-doped SrTiO3 single crystals using both continuous wave and pulsed electron paramagnetic resonance (EPR) spectroscopy at frequencies from 9.5 to 427 GHz and temperatures from 5 to 296 K. The first center is created by a Mn2+ ion at the Sr2+ lattice site in an off-center position. Its spectroscopic characteristics were determined for both fast and slow motion regimes of the impurity ion. In particular, all spin transitions allowed by the Mn2+ spin were well resolved in the slow motion regime. The second center is created by a Mn2+ ion at the Ti4+ position in the center of the oxygen octahedron. It has been established that the surrounding of this ion undergoes strong distortion when cooled below the phase transition temperature Tc = 105 K, stimulated by the rotation of the oxygen octahedron. The present data also perfectly explain the previously obtained EPR data from measurements of SrTiO3:Mn ceramics at low microwave frequencies (9-10 GHz).
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
<a href="/en/project/GA23-05578S" target="_blank" >GA23-05578S: Electric-field control of spin-qubits in quantum paraelectrics</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
PHYSICAL REVIEW B
ISSN
2469-9950
e-ISSN
2469-9969
Volume of the periodical
110
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
„“-„“
UT code for WoS article
001284794700003
EID of the result in the Scopus database
2-s2.0-85199942552