Magnetization-direction-dependent inverse spin Hall effect observed in IrMn/NiFe/Cu/YIG multilayer structure
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摘要
The magnetization-direction-dependent inverse spin Hall effect(ISHE) has been observed in NiFe film during spin Seebeck measurement in IrMn/NiFe/Cu/yttrium iron garnet(YIG) multilayer structure, where the YIG and NiFe layers act as the spin injector and spin current detector, respectively. By using the NiFe/IrMn exchange bias structure, the magnetization direction of YIG(MYIG) can be rotated with respect to that of NiFe(MNiFe) with a small magnetic field, thus allowing us to observe the magnetization-direction-dependent inverse spin Hall effect voltage in NiFe layer. Compared with the situation that polarization direction of spin current(σs) is perpendicular to MNiFe, the spin Seebeck voltage is about 30% larger than that when σs and MNiFe are parallel to each other. This phenomenon may originate from either or both of stronger interface or bulk scattering to spin current when σs and MNiFe are perpendicular to each other. Our work provides a way to control the voltage induced by ISHE in ferromagnets.
The magnetization-direction-dependent inverse spin Hall effect(ISHE) has been observed in NiFe film during spin Seebeck measurement in IrMn/NiFe/Cu/yttrium iron garnet(YIG) multilayer structure, where the YIG and NiFe layers act as the spin injector and spin current detector, respectively. By using the NiFe/IrMn exchange bias structure, the magnetization direction of YIG(MYIG) can be rotated with respect to that of NiFe(MNiFe) with a small magnetic field, thus allowing us to observe the magnetization-direction-dependent inverse spin Hall effect voltage in NiFe layer. Compared with the situation that polarization direction of spin current(σs) is perpendicular to MNiFe, the spin Seebeck voltage is about 30% larger than that when σs and MNiFe are parallel to each other. This phenomenon may originate from either or both of stronger interface or bulk scattering to spin current when σs and MNiFe are perpendicular to each other. Our work provides a way to control the voltage induced by ISHE in ferromagnets.
The magnetization-direction-dependent inverse spin Hall effect(ISHE) has been observed in NiFe film during spin Seebeck measurement in IrMn/NiFe/Cu/yttrium iron garnet(YIG) multilayer structure, where the YIG and NiFe layers act as the spin injector and spin current detector, respectively. By using the NiFe/IrMn exchange bias structure, the magnetization direction of YIG(MYIG) can be rotated with respect to that of NiFe(MNiFe) with a small magnetic field, thus allowing us to observe the magnetization-direction-dependent inverse spin Hall effect voltage in NiFe layer. Compared with the situation that polarization direction of spin current(σs) is perpendicular to MNiFe, the spin Seebeck voltage is about 30% larger than that when σs and MNiFe are parallel to each other. This phenomenon may originate from either or both of stronger interface or bulk scattering to spin current when σs and MNiFe are perpendicular to each other. Our work provides a way to control the voltage induced by ISHE in ferromagnets.
引文
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[28] Lu Y M, Choi Y, Ortega C M, Cheng X M, Cai J W, Huang S Y, Sun L and Chien C L 2013 Phys. Rev. Lett. 110 147207
[29] Marmion S R, Ali M, McLaren M, Williams D A and Hickey B J 2014Phys. Rev. B 89 220404
[2] Wolf S A, Awschalom D D, Buhrman R A, Daughton J M, Molna S V,Roukes M L, Chtchelkanova A Y and Treger D M 2001 Science 2941488
[3] Ando K, Kajiwara Y, Takahashi S, Maekawa S, Takemoto K, Takatsu M and Saitoh E 2008 Phys. Rev. B 78 014413
[4] Saitoh E, Ueda M, Miyajima H and Tatara G 2006 Appl. Phys. Lett. 88182509
[5] Mosendz O, Pearson J E, Fradin F Y, Bauer G E W, Bader S D and Hoffmann A 2010 Phys. Rev. Lett. 104 046601
[6] Kang Y, Zhong H, Hao R R, Hu S J, Kang S S, Liu G L, Zhang Y,Wang X R, Yan S S, Wu Y, Yu S Y, Han G B Jiang Y and Mei L M2017 Chin. Phys. B 26 047202
[7] Hirsch J E 1999 Phy. Rev. Lett. 83 1834
[8] Uchida K, Takahashi S, Harii K, Ieda J, Koshibae W, Ando K,Maekawa S and Saitoh E 2008 Nature 455 778
[9] Kikkawa T, Uchida T, Shiomi Y, Qiu Z, Hou D, Tian D, Nakayama H,Jin X F and Saitoh E 2013 Phys. Rev. Lett. 110 067207
[10] Huang S Y, Wang W G, Lee S F, Kwo J and Chien C L 2011 Phys. Rev.Lett. 107 216604
[11] Kimura T, Otani Y, Sato T, Takahashi S and Maekawa S 2007 Phys.Rev. Lett. 98 156601
[12] Wang H L, Du C H, Pu Y, Adur R, Hammel P C and Yang F Y 2014Phys. Rev. Lett. 112 197201
[13] Du C, Wang H, Yang F and Hammel P C 2014 Phys. Rev. B 90 140407
[14] Tian D, Li Y F, Qu D, Jin X F and Chien C L 2015 Appl. Phys. Lett.106 212407
[15] Miao B F, Huang S F, Qu D and Chien C L 2013 Phys. Rev. Lett. 111066602
[16] Wu H, Wan C H, Yuan Z H, Zhang X, Jiang J, Zhang Q T, Wen Z C and Han X F 2015 Phys. Rev. B 92 054404
[17] Hao R R, Zhong H, Kang Y, Tian Y F, Yan S S, Liu G L, Han G B, Yu S Y, Mei L M and Kang S S 2018 Chin. Phys. B 27 037202
[18] Wu H, Wang X, Huang L, Qin J Y, Fang C, Zhang X, Wan C H and Han X F 2017 J. Magn. Magn. Mater. 441 149
[19] Djayaprawira D D, Tsunekawa K, Nagai M, Maehara H, Yamagata S,Watanabe N, Yuasa S, Suzuki Y and Ando K 2005 Appl. Phys. Lett. 86092502
[20] Binasch G, Grunberg P, Saurenbach F and Zinn W 1989 Phys. Rev. B39 4828
[21] Baibich M N, Broto J M, Fert A, Nguyen V D F, Petroff F, Etienne P,Creuzet G, Friederich A and Chazelas J 1988 Phys. Rev. Lett. 61 2472
[22] Miyazaki T and Tezuka N 1995 J. Magn. Magn. Mater. 139 L231
[23] Cramer J, Fuhrmann F, Ritzmann U, Gall V, Niizeki T, Ramos R, Qiu Z, Hou D. Kikkawa T. Sinova J, Nowak U, Saitoh E and Klaui M 2018Nat. Commun. 9 1089
[24] Chen Y T, Takahashi S, Nakayama H, Althammer M, Goennenwein S T B, Saitoh E and Bauer G E W 2013 Phys. Rev. B 87 144411
[25] Althammer M, Meyer S, Nakayama H, Schreier M, Altmannshofer S,Weiler M, Huebl H, Geprags S, Opel M, Gross R, Meier D, Klewe C,Kuschel T, Schmalhorst J M, Reiss G, Shen L, Gupta A, Chen Y T,Bauer G E W, Saitoh E and Goennenwein S T B 2013 Phys. Rev. B 87224401
[26] Das K S, Schoemaker W Y, van Wees B J and Vera-Marun I J 2017Phys. Rev. B 96 220408
[27] Qin C, Chen S H, Cai Y J, Kandaz F and Ji Y 2017 Phys. Rev. B 96134418
[28] Lu Y M, Choi Y, Ortega C M, Cheng X M, Cai J W, Huang S Y, Sun L and Chien C L 2013 Phys. Rev. Lett. 110 147207
[29] Marmion S R, Ali M, McLaren M, Williams D A and Hickey B J 2014Phys. Rev. B 89 220404