Ferromagnetic Properties of SrRuO₃ Thin Films Deposited on the Spin-Triplet Superconductor Sr₂RuO₄

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• 作者：Yusuke Sugimoto^a ; Muhammad Shahbaz Anwar^a ; ^{anwar@scphys.kyoto-u.ac.jp" class="auth_mail" title="E-mail the corresponding author} ; Seung Ran Lee^b ; ^c ; Yeong Jae Shin^b ; ^c ; Shingo Yonezawa^a ; Tae Won Noh^b ; ^c ; Yoshiteru Maeno^a
• 关键词：Spin-triplet superconductor ; Sr2RuO4 ; Ferromagnetic thin film ; SrRuO3 ; Proximity effect
• 刊名：Physics Procedia
• 出版年：2015
• 出版时间：2015
• 年：2015
• 卷：75
• 期：Complete
• 页码：413-418
• 全文大小：394 K

文摘

We report magnetic properties of epitaxial thin films of the itinerant ferromagnet SrRuO₃ deposited on the cleaved ab surface of the spin-triplet superconductor Sr₂RuO₄. The films exhibit ferromagnetic transition near 160 K as in the bulk SrRuO₃, although the films are under 1.7% compressive strain. The observed magnetization is even higher than that of the bulk SrRuO₃. In addition, we newly found that the magnetization relaxation after field removal is strongly anisotropic: two relaxation processes are involved when magnetic domains are aligned along the ab-plane.