TY - GEN
T1 - Current induced magnetization switching in an antiperovskite nitride exchange-coupled bilayer
AU - Kuroki, Y.
AU - Sakakibara, H.
AU - Ando, H.
AU - Kawai, S.
AU - Hajiri, T.
AU - Ueda, K.
AU - Asano, H.
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/7/14
Y1 - 2015/7/14
N2 - Recently, current-induced spin transfer torque is attracting interest because it affects not only a FM but also an AFM [1, 2]. Furthermore, the critical current for AFM switching is more than 10-2 times smaller than typical value for a FM [1]. Therefore, FM/AFM bilayers containing half-metallic FMs are desirable for studying current-induced magnetization switching and spin torque in AFM materials. Up to now, we focused on antiperovskite nitride [3, 4] because there are many combinations of elements that form the antiperovskite nitride such a AFM materials and half-metallic FM. Anti-perovskite FM nitride Co3FeN is predicted that it has high negative spin polarization [3, 4]. Anti-perovskite AFM nitride Mn3GaN exhibits many interesting properties, such as piezomagnetic [5]. For Mn3GaN/Co3FeN bilayer, we expect application to the new devices controlling magnetic moments of Mn3GaN by spin transfer torque. In this study, we investigated current-induced magnetization switching in Mn3GaN/Co3FeN epitaxial exchange-coupled bilayers by employing AMR effect. We shall discuss spin transfer torque in antiferromagnetic Mn3 GaN.
AB - Recently, current-induced spin transfer torque is attracting interest because it affects not only a FM but also an AFM [1, 2]. Furthermore, the critical current for AFM switching is more than 10-2 times smaller than typical value for a FM [1]. Therefore, FM/AFM bilayers containing half-metallic FMs are desirable for studying current-induced magnetization switching and spin torque in AFM materials. Up to now, we focused on antiperovskite nitride [3, 4] because there are many combinations of elements that form the antiperovskite nitride such a AFM materials and half-metallic FM. Anti-perovskite FM nitride Co3FeN is predicted that it has high negative spin polarization [3, 4]. Anti-perovskite AFM nitride Mn3GaN exhibits many interesting properties, such as piezomagnetic [5]. For Mn3GaN/Co3FeN bilayer, we expect application to the new devices controlling magnetic moments of Mn3GaN by spin transfer torque. In this study, we investigated current-induced magnetization switching in Mn3GaN/Co3FeN epitaxial exchange-coupled bilayers by employing AMR effect. We shall discuss spin transfer torque in antiferromagnetic Mn3 GaN.
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U2 - 10.1109/INTMAG.2015.7156580
DO - 10.1109/INTMAG.2015.7156580
M3 - Conference contribution
AN - SCOPUS:84942446841
T3 - 2015 IEEE International Magnetics Conference, INTERMAG 2015
BT - 2015 IEEE International Magnetics Conference, INTERMAG 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2015 IEEE International Magnetics Conference, INTERMAG 2015
Y2 - 11 May 2015 through 15 May 2015
ER -