2015年8月
Thickness-dependent magnetic properties and strain-induced orbital magnetic moment in SrRuO3 thin films
PHYSICAL REVIEW B
- 巻
- 92
- 号
- 6
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevB.92.064402
- 出版者・発行元
- AMER PHYSICAL SOC
Thin films of the ferromagnetic metal SrRuO3 (SRO) show a varying easy magnetization axis depending on the epitaxial strain, and undergo a metal-to-insulator transition with decreasing film thickness. We have investigated the magnetic properties of SRO thin films with varying thicknesses fabricated on SrTiO3(001) substrates by soft x-ray magnetic circular dichroism at the Ru M-2,M-3 edge. Results have shown that, with decreasing film thickness, the film changes from ferromagnetic to nonmagnetic at around 3 monolayer thickness, consistent with previous magnetization and magneto-optical Kerr effect measurements. The orbital magnetic moment perpendicular to the film was found to be similar to 0.1 mu(B)/Ru, and remained nearly unchanged with decreasing film thickness while the spin magnetic moment decreases. A mechanism for the formation of the orbital magnetic moment is discussed based on the electronic structure of the compressively strained SRO film.
- リンク情報
-
- DOI
- https://doi.org/10.1103/PhysRevB.92.064402
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000358929600005&DestApp=WOS_CPL
- Scopus
- https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84939825314&origin=inward
- Scopus Citedby
- https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84939825314&origin=inward
- ID情報
-
- DOI : 10.1103/PhysRevB.92.064402
- ISSN : 2469-9950
- eISSN : 2469-9969
- SCOPUS ID : 84939825314
- Web of Science ID : WOS:000358929600005