Spectroscopic studies of the ferroelectric and magnetic phase transitions in multiferroic Sr1-xBaxMnO3

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F16%3A00462137" target="_blank" >RIV/68378271:_____/16:00462137 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1088/0953-8984/28/17/175901" target="_blank" >http://dx.doi.org/10.1088/0953-8984/28/17/175901</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/0953-8984/28/17/175901" target="_blank" >10.1088/0953-8984/28/17/175901</a>

Result language
angličtina
Original language name
Spectroscopic studies of the ferroelectric and magnetic phase transitions in multiferroic Sr1-xBaxMnO3
Original language description
Sr 1-x Ba x MnO3 ceramics was investigated using microwave, THz and infrared spectroscopic techniques in order to study the ferroelectric and antiferromagnetic phase transitions with critical temperatures Tc=350K and TN=200K, respectively. The ferroelectric phase transitions has characteristics of a crossover from displacive to order-disorder type. Below TN, the ferroelectric distortion markedly decreases, which has an influence on the frequencies of both the central and soft modes. In spite of the strong spin-phonon coupling near TN, surprisingly no magnetodielectric effect was observed in the THz spectra upon applying magnetic field of up to 7 T. We explain this fact as due to the insensitivity of TN to magnetic field.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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