Oxygen-vacancy donor-electron center in Y3Al5O12 garnet crystals: Electron paramagnetic resonance and dielectric spectroscopy study

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F20%3A00533017" target="_blank" >RIV/68378271:_____/20:00533017 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26620/20:PU137428

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevB.101.024106" target="_blank" >https://doi.org/10.1103/PhysRevB.101.024106</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.101.024106" target="_blank" >10.1103/PhysRevB.101.024106</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Oxygen-vacancy donor-electron center in Y3Al5O12 garnet crystals: Electron paramagnetic resonance and dielectric spectroscopy study

Popis výsledku v původním jazyce

The F+ center consisting of an electron trapped at the oxygen vacancy (V_O) was investigated in the oxygen deficient Y3Al5O12 (YAG) garnet crystals by electron paramagnetic resonance (EPR) techniques. The measurements were performed in the wide temperature interval 5450 K and the frequency range 9.4350 GHz using both the conventional continuous-wave and pulse EPR experiments. The pulse electron-nuclear double resonance was applied to resolve the hyperfine interaction of the trapped electron with surrounding nuclei. A model of the F+ center in YAG is proposed on the basis of the obtained experimental data. The model assumes localization of an electron within oxygen vacancy space at T < 50 K, like in MgO, and its further behavior with temperature increase is similar to that of the donor electron in a semiconducting material.n

Název v anglickém jazyce

Oxygen-vacancy donor-electron center in Y3Al5O12 garnet crystals: Electron paramagnetic resonance and dielectric spectroscopy study

Popis výsledku anglicky

The F+ center consisting of an electron trapped at the oxygen vacancy (V_O) was investigated in the oxygen deficient Y3Al5O12 (YAG) garnet crystals by electron paramagnetic resonance (EPR) techniques. The measurements were performed in the wide temperature interval 5450 K and the frequency range 9.4350 GHz using both the conventional continuous-wave and pulse EPR experiments. The pulse electron-nuclear double resonance was applied to resolve the hyperfine interaction of the trapped electron with surrounding nuclei. A model of the F+ center in YAG is proposed on the basis of the obtained experimental data. The model assumes localization of an electron within oxygen vacancy space at T < 50 K, like in MgO, and its further behavior with temperature increase is similar to that of the donor electron in a semiconducting material.n

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Physical Review B

ISSN

2469-9950

e-ISSN

—

Svazek periodika

101

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

1-10

Kód UT WoS článku

000507496300002

EID výsledku v databázi Scopus

2-s2.0-85078478046