Role of 4f-orbitals on the magnetodielectric properties and spin-phonon coupling in orthorhombic Sm0.50M0.50MnO3 (M = Ho and Eu)
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F25%3A00619855" target="_blank" >RIV/68378271:_____/25:00619855 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1021/acsaelm.5c00397" target="_blank" >https://doi.org/10.1021/acsaelm.5c00397</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acsaelm.5c00397" target="_blank" >10.1021/acsaelm.5c00397</a>
Alternative languages
Result language
angličtina
Original language name
Role of 4f-orbitals on the magnetodielectric properties and spin-phonon coupling in orthorhombic Sm0.50M0.50MnO3 (M = Ho and Eu)
Original language description
The polycrystalline samples of SmMnO3 (SMO), Sm0.50Ho0.50MnO3 (SHMO), and Sm0.50Eu0.50MnO3 (SEMO) have been synthesized to understand the effect of Ho and Eu substitution on the structural and physical properties. Detailed crystal structure, magnetic, dielectric, magnetodielectric (MD), and Raman spectroscopy measurements have been performed to investigate the role of 4f-orbital on the magnetic, MD, and spin-phonon coupling in these materials. The pristine SMO exhibits an antiferromagnetic (AFM) transition around 58 K due to the canted A-type AFM ordering of Mn3+ moments. The Mn-O-Mn bond angle, unit cell volume, and the AFM transition temperature decrease with the partial substitution of Ho and Eu. All the studied samples exhibit anomalies in the dielectric measurement corresponding to the magnetic ordering. The temperature-dependent dielectric results of SHMO illustrate a sharp peak at 22 K, which shifted toward the lower temperature side with increasing magnetic field. These results are similar to orthorhombic RMnO3. The temperature-dependent Raman measurements of all the studied samples reveal an anomaly at the magnetic ordering temperature, which suggests the spin-phonon coupling. The sign of MD is different for SEMO and SHMO samples. Our results demonstrated the enhancement of the MD value in SHMO and SEMO as compared to SMO. The SHMO exhibits both positive and negative MD in the magnetically ordered state. These findings highlight the strong magnetoelectric coupling in SHMO and SEMO as compared to pristine SMO.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10302 - Condensed matter physics (including formerly solid state physics, supercond.)
Result continuities
Project
—
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
ACS Applied Electronic Materials
ISSN
2637-6113
e-ISSN
2637-6113
Volume of the periodical
7
Issue of the periodical within the volume
9
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
4231-4241
UT code for WoS article
001468562200001
EID of the result in the Scopus database
2-s2.0-105002755214