EPR study of the ground state of Mn2+ impurity ions in alumoborates MAl3(BO3)4 (M=Y, Eu, Tm)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F15%3A00448598" target="_blank" >RIV/68378271:_____/15:00448598 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1088/0031-8949/90/6/065804" target="_blank" >http://dx.doi.org/10.1088/0031-8949/90/6/065804</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/0031-8949/90/6/065804" target="_blank" >10.1088/0031-8949/90/6/065804</a>

Jazyk výsledku

angličtina

Název v původním jazyce

EPR study of the ground state of Mn2+ impurity ions in alumoborates MAl3(BO3)4 (M=Y, Eu, Tm)

Popis výsledku v původním jazyce

New data about the ground state of the Mn2+ impurity ions in a series of single crystals of alumbrados MAl3 B03)4, where M= Y,Eu,Tm were obtained. The electron paramagnetic resonance (EPR) spectra of the Mn2+ spectra were studied, the parameters of the spin Hamiltonian describing the angular dependence of the spectrum were defined. It was shown that Mn2+ ions substitute trivalent ions of rare earth metals without changing the symmetry of the substitution site. The charge compensation process was found to be a nonlocal one. The cooling of the crystals leads to the increase of the splitting of the ground state, which is associated with the anisotropy of the thermal expansion coefficient. It was shown that an application of the superposition model to explain the distortions induced by an impurity Mn2+ ion has some limitations.

Název v anglickém jazyce

EPR study of the ground state of Mn2+ impurity ions in alumoborates MAl3(BO3)4 (M=Y, Eu, Tm)

Popis výsledku anglicky

New data about the ground state of the Mn2+ impurity ions in a series of single crystals of alumbrados MAl3 B03)4, where M= Y,Eu,Tm were obtained. The electron paramagnetic resonance (EPR) spectra of the Mn2+ spectra were studied, the parameters of the spin Hamiltonian describing the angular dependence of the spectrum were defined. It was shown that Mn2+ ions substitute trivalent ions of rare earth metals without changing the symmetry of the substitution site. The charge compensation process was found to be a nonlocal one. The cooling of the crystals leads to the increase of the splitting of the ground state, which is associated with the anisotropy of the thermal expansion coefficient. It was shown that an application of the superposition model to explain the distortions induced by an impurity Mn2+ ion has some limitations.

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

<a href="/cs/project/LM2011029" target="_blank" >LM2011029: SAFMAT - Středisko Analýzy Funkčních MATeriálů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Physica Scripta

ISSN

0031-8949

e-ISSN

—

Svazek periodika

90

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

SE - Švédské království

Počet stran výsledku

6

Strana od-do

—

Kód UT WoS článku

000357481800032

EID výsledku v databázi Scopus

2-s2.0-84930965878