Electric-field effect on stiffness constant investigated by spin-wave resonance in nanoscale MgO/CoFeB magnetic tunnel junctions

Takaaki Dohi; Shun Kanai; Fumihiro Matsukura; Hideo Ohno

Presentation information

Oral presentation

CS Code-sharing session » CS.6 10.1,10.2,10.3,10.4 Code-sharing session

[15p-501-1~19] CS.6 10.1,10.2,10.3,10.4 Code-sharing session "Emerging control-methods of magnetization and related phenomena"

Wed. Mar 15, 2017 1:15 PM - 6:30 PM 501 (501)

Seiji Mitani(NIMS), Masamitsu Hayashi(Univ. of Tokyo)

2:15 PM - 2:30 PM

▼ [15p-501-5] Electric-field effect on stiffness constant investigated by spin-wave resonance in nanoscale MgO/CoFeB magnetic tunnel junctions

〇(M2C)Takaaki Dohi¹, Shun Kanai^1,2,3, Fumihiro Matsukura^1,2,3,4, Hideo Ohno^1,2,3,4,5 (1.RIEC, Tohoku Univ., 2.CSIS, Tohoku Univ., 3.CSRN, Tohoku Univ., 4.WPI-AIMR, Tohoku Univ., 5.CIES, Tohoku Univ.)

Keywords:spintronics, electric-field effect, metal

So far, we reported that the electric-field effects on magnetic anisotropy, damping constant, domain structure in CoFeB/MgO system. In this work, we investigate the effect on an exchange stiffness constant A_S through spin-wave resonance detected in nanoscale MgO/CoFeB magnetic tunnel junctions (MTJs).