Evolution of the phonon density of states of LaCoO3 over the spin state transition

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F11%3A00364248" target="_blank" >RIV/68378271:_____/11:00364248 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1103/PhysRevB.83.214305" target="_blank" >http://dx.doi.org/10.1103/PhysRevB.83.214305</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.83.214305" target="_blank" >10.1103/PhysRevB.83.214305</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evolution of the phonon density of states of LaCoO3 over the spin state transition

Popis výsledku v původním jazyce

The phonon spectra of LaCoO3 were studied by inelastic neutron scattering in the temperature range of 4?120 K. The DFT calculations of the lattice dynamics have been made for interpretation of the experimental data. The observed and calculated phonon frequencies were found to be in a reasonable agreement. The evolution of the phonon density of states over the spin state transition was analyzed. In the low-temperature range (T < 50 K), an increase in the energy of resolved breathing, stretching, and bending phonon modes was found, followed by their softening and broadening at higher temperatures due to the spin state transition and relevant orbital-phonon coupling.

Název v anglickém jazyce

Evolution of the phonon density of states of LaCoO3 over the spin state transition

Popis výsledku anglicky

The phonon spectra of LaCoO3 were studied by inelastic neutron scattering in the temperature range of 4?120 K. The DFT calculations of the lattice dynamics have been made for interpretation of the experimental data. The observed and calculated phonon frequencies were found to be in a reasonable agreement. The evolution of the phonon density of states over the spin state transition was analyzed. In the low-temperature range (T < 50 K), an increase in the energy of resolved breathing, stretching, and bending phonon modes was found, followed by their softening and broadening at higher temperatures due to the spin state transition and relevant orbital-phonon coupling.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Physical Review. B

ISSN

1098-0121

e-ISSN

—

Svazek periodika

83

Číslo periodika v rámci svazku

21

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

"214305/1"-"214305/6"

Kód UT WoS článku

000292252300004

EID výsledku v databázi Scopus

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