Interface effects and the evolution of ferromagnetism in La2/3Sr1/3MnO3 ultrathin films

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F14%3A10285005" target="_blank" >RIV/00216208:11320/14:10285005 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1088/1468-6996/15/1/015001" target="_blank" >http://dx.doi.org/10.1088/1468-6996/15/1/015001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1468-6996/15/1/015001" target="_blank" >10.1088/1468-6996/15/1/015001</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Interface effects and the evolution of ferromagnetism in La2/3Sr1/3MnO3 ultrathin films

Popis výsledku v původním jazyce

Pulse laser deposited La2/3Sr1/3MnO3 ultrathin films on SrTiO3 substrates were characterized by polar and longitudinal Kerr magneto-optical spectroscopy. Experimental data were confronted with theoretical simulations based on the transfer matrix formalism. An excellent agreement was achieved for a 10.7 nm thick film, while a distinction in the Kerr effect amplitudes was obtained for a 5 nm thick film. This demonstrated the suppression of ferromagnetism due to the layer/substrate interface effects. A revised, depth-sensitive theoretical model with monolayer resolution described the experimental data well, and provided clear cross-section information about the evolution of ferromagnetism inside the film. It was found that the full restoration of the double-exchange mechanism, responsible for the ferromagnetic ordering in La2/3Sr1/3MnO3, occurs within the first nine monolayers of the film. Moreover, all the studied films exhibited magneto-optical properties similar to bulk crystals and th

Název v anglickém jazyce

Interface effects and the evolution of ferromagnetism in La2/3Sr1/3MnO3 ultrathin films

Popis výsledku anglicky

Pulse laser deposited La2/3Sr1/3MnO3 ultrathin films on SrTiO3 substrates were characterized by polar and longitudinal Kerr magneto-optical spectroscopy. Experimental data were confronted with theoretical simulations based on the transfer matrix formalism. An excellent agreement was achieved for a 10.7 nm thick film, while a distinction in the Kerr effect amplitudes was obtained for a 5 nm thick film. This demonstrated the suppression of ferromagnetism due to the layer/substrate interface effects. A revised, depth-sensitive theoretical model with monolayer resolution described the experimental data well, and provided clear cross-section information about the evolution of ferromagnetism inside the film. It was found that the full restoration of the double-exchange mechanism, responsible for the ferromagnetic ordering in La2/3Sr1/3MnO3, occurs within the first nine monolayers of the film. Moreover, all the studied films exhibited magneto-optical properties similar to bulk crystals and th

Druh

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

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

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Projekt

<a href="/cs/project/GPP204%2F10%2FP346" target="_blank" >GPP204/10/P346: Spektroskopie magnetických nanostruktur</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Science and Technology of Advanced Materials

ISSN

1468-6996

e-ISSN

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Svazek periodika

15

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

JP - Japonsko

Počet stran výsledku

6

Strana od-do

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Kód UT WoS článku

000332466700018

EID výsledku v databázi Scopus

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