Spin Hall magnetoresistance at Pt/CoFe2O4 interfaces and texture effects

被引：112

作者：

Isasa, Miren ^{[1
]}

Bedoya-Pinto, Amilcar ^{[1
]}

Velez, Saul ^{[1
]}

Golmar, Federico ^{[1
,2
,3
]}

Sanchez, Florencio ^{[4
]}

Hueso, Luis E. ^{[1
,5
]}

Fontcuberta, Josep ^{[4
]}

Casanova, Felix ^{[1
,5
]}

机构：

[1] CIC nanoGUNE, Donostia San Sebastian 20018, Basque Country, Spain

[2] Consejo Nacl Invest Cient & Tecn, INTI, San Martin, Bs As, Argentina

[3] UNSAM, ECyT, San Martin, Bs As, Argentina

[4] CSIC, Inst Ciencia Mat Barcelona ICMAB, Bellaterra 08193, Catalonia, Spain

[5] Basque Fdn Sci, Ikerbasque, Bilbao 48011, Basque Country, Spain

来源：

APPLIED PHYSICS LETTERS | 2014年 / 105卷 / 14期

基金：

欧盟第七框架计划; 欧洲研究理事会;

关键词：

ROOM-TEMPERATURE; INJECTION;

D O I：

10.1063/1.4897544

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report magnetoresistance measurements on thin Pt bars grown on epitaxial (001) and (111) CoFe2O4 (CFO) ferrimagnetic insulating films. The results can be described in terms of the recently discovered spin Hall magnetoresistance (SMR). The magnitude of the SMR depends on the interface preparation conditions, being optimal when the Pt/CFO samples are prepared in situ, in a single process. The spin-mixing interface conductance, the key parameter governing SMR and other relevant spin-dependent phenomena, such as spin pumping or spin Seebeck effect, is found to be different depending on the crystallographic orientation of CFO, highlighting the role of the composition and density of magnetic ions at the interface on spin mixing. (C) 2014 AIP Publishing LLC.

引用

页数：5

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