Publication Date:
2004-08-03
Description:
Interface-selective probing of magnetism is a key issue for the design and realization of spin-electronic junction devices. Here, magnetization-induced second-harmonic generation was used to probe the local magnetic properties at the interface of the perovskite ferromagnet La(0.6)Sr(0.4)MnO3 with nonmagnetic insulating layers, as used in spin-tunnel junctions. We show that by grading the doping profile on an atomic scale at the interface, robust ferromagnetism can be realized around room temperature. The results should lead to improvements in the performance of spin-tunnel junctions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Yamada, Hiroyuki -- Ogawa, Yoshihiro -- Ishii, Yuji -- Sato, Hiroshi -- Kawasaki, Masashi -- Akoh, Hiroshi -- Tokura, Yoshinori -- New York, N.Y. -- Science. 2004 Jul 30;305(5684):646-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Correlated Electron Research Center (CERC), National Institute of Advanced Science and Technology (AIST), Tsukuba 305-8562, Japan.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/15286367" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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