Electronic structure of La2/3Sr1/3MnO3: Interplay of oxygen octahedra rotations and epitaxial strain
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F19%3APU132235" target="_blank" >RIV/00216305:26210/19:PU132235 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11320/19:10398937
Result on the web
<a href="https://journals.aps.org/prb/abstract/10.1103/PhysRevB.99.195138" target="_blank" >https://journals.aps.org/prb/abstract/10.1103/PhysRevB.99.195138</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevB.99.195138" target="_blank" >10.1103/PhysRevB.99.195138</a>
Alternative languages
Result language
angličtina
Original language name
Electronic structure of La2/3Sr1/3MnO3: Interplay of oxygen octahedra rotations and epitaxial strain
Original language description
Influence of epitaxial strain and oxygen octahedra rotations on electronic structure of La2/3Sr1/3MnO3 ultrathin films was systematically studied. The investigated films were grown by pulsed laser deposition on four different substrates: cubic (001)-oriented LaAlO3, (001) (LaAlO3)(1/3) (Sr2AlTaO6)(2/3), (001) SrTiO3, and orthorhombic (110) DyScO3, providing a broad range of induced epitaxial strains. Magnetic properties were found to deteriorate with increasing value of the epitaxial strain, as expected due to unit cell distortion increasingly deviating from the bulk and effect of the magnetically inert layer. A combination of spectroscopic ellipsometry and magneto-optical Kerr effect spectroscopy was used to determine spectra of the diagonal and off-diagonal elements of permittivity tensor. The off-diagonal elements at room temperature confirmed the presence of two previously reported electronic transitions in the spectra of all films. Moreover they revealed another electronic transition around 4.3 eV only in the spectra of films grown under compressive strain. We proposed classification of this transition as a crystal field paramagnetic Mn t(2g) -> e(g) transition. Ab initio calculations were employed to distinguish between the potential influence of oxygen octahedra rotations and distortions. The ab initio calculations indicated a negligible influence of oxygen octahedra rotations on magneto-optical properties of La2/3Sr1/3MnO3. They further supported the proposed classification of the additional electronic transition, showing a key role of strain in controlling the electronic structure of ultrathin perovskite films.
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/EF15_003%2F0000487" target="_blank" >EF15_003/0000487: Physics of martensitic transformation for functionality enhancement of crystalline materials and nanostructures</a><br>
Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2019
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
99
Issue of the periodical within the volume
-
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
„195138“-„-“
UT code for WoS article
000469061200002
EID of the result in the Scopus database
2-s2.0-85066397693