期刊
PHYSICAL REVIEW LETTERS
卷 110, 期 14, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.110.147207
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资金
- National Basic Research Program of China [2009CB929201]
- National Natural Science Foundation of China [51171205, 51021061, 50831002]
- U.S. NSF Grant [DMR-0520491]
- U.S. DOE [DE-AC02-06CH11357]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1053854] Funding Source: National Science Foundation
Thin Pt films on an yttrium iron garnet (YIG = Y3Fe5O12) show ferromagneticlike transport properties, which may impact the functionality of Pt in spin current detection, but do not provide direct quantitative information on the Pt magnetization. We report magnetic x-ray magnetic circular dichroism measurements of YIG/Pt(1.5 nm) showing an average Pt moment of 0.054 mu(B) at 300 K and 0.076 mu(B) at 20 K. This observation indicates strong proximity effects and induced magnetic ordering in Pt on magnetic insulators and their contribution to the spin-related measurements should not be neglected. The transport characteristics also suggest considerable modifications in the Pt electronic structure due to magnetic ordering. DOI: 10.1103/PhysRevLett.110.147207
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