Probing the role of Nd3+ ions in the weak multiferroic character of NdMn2O5 by optical spectroscopies
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10387111" target="_blank" >RIV/00216208:11320/18:10387111 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1103/PhysRevB.98.205119" target="_blank" >https://doi.org/10.1103/PhysRevB.98.205119</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.98.205119" target="_blank" >10.1103/PhysRevB.98.205119</a>
Alternative languages
Result language
angličtina
Original language name
Probing the role of Nd3+ ions in the weak multiferroic character of NdMn2O5 by optical spectroscopies
Original language description
Raman and infrared spectroscopies are used as local probes to study the dynamics of the Nd-O bonds in the weakly multiferroic NdMn2O5 system. The temperature dependence of selected Raman excitations reveals the splitting of the Nd-O bonds in NdMn2O5. The Nd3+ ion crystal field (CF) excitations in NdMn2O5 single crystals are studied by infrared transmission as a function of temperature, in the 1800 - 8000 cm(-1) range, and under an applied magnetic field up to 11 T. The frequencies of all I-4(j) CF levels of Nd3+ are determined. We find that the degeneracy of the ground-state Kramers doublet is lifted (Delta(0) similar to 7.5 cm(-1)) due to the Nd3+ -Mn3+ interaction in the ferroelectric phase, below T-c similar to 28 K. The Nd3+ magnetic moment m(Nd) (T) and its contribution to the magnetic susceptibility and the specific heat are evaluated from Delta(0) (T) indicating that the Nd3+ ions are involved in the magnetic and the ferroelectric ordering observed below similar to 28 K. The Zeeman splitting of the excited CF levels of the Nd3+ ions at low temperature is also analyzed.
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
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
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
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Volume of the periodical
98
Issue of the periodical within the volume
20
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
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UT code for WoS article
000449909700002
EID of the result in the Scopus database
2-s2.0-85056649213