Strain effect on magnetic-exchange-induced phonon splitting in NiO films
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00532988" target="_blank" >RIV/68378271:_____/20:00532988 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1088/1361-648X/ab9f08" target="_blank" >https://doi.org/10.1088/1361-648X/ab9f08</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1361-648X/ab9f08" target="_blank" >10.1088/1361-648X/ab9f08</a>
Alternative languages
Result language
angličtina
Original language name
Strain effect on magnetic-exchange-induced phonon splitting in NiO films
Original language description
NiO thin films with various strains were grown on SrTiO3 (STO) and MgO substrates using a pulsed laser deposition technique.The variation of in-plane strain from -0.36% (compressive) to 0.48% (tensile) yields the decrease of the phonon frequency from 409.6 cm-1 to 377.5 cm-1which occurs due to the ~1% change of interatomic distances. The magnetic exchange-driven phonon splitting Δω was measured as a function of temperature. The Δω increases on cooling in NiO relaxed film. The splitting increases on cooling also in 0.48% tensile strained film, but Δω is systematically 3-4 cm-1 smaller than in relaxed film. Since the phonon splitting is proportional to the non-dominant magnetic exchange interaction J1, the reduction of phonon splitting in tensile-strained film was explained by a diminishing of J1 with lattice expansion.n
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
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
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Physics: Condensed Matter
ISSN
1361-648X
e-ISSN
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Volume of the periodical
32
Issue of the periodical within the volume
40
Country of publishing house
GB - UNITED KINGDOM
Number of pages
8
Pages from-to
1-8
UT code for WoS article
000551798500001
EID of the result in the Scopus database
2-s2.0-85088022774