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Modulation of spin dynamics in Ni/Pb(Mg_(1/3)Nb_(2/3))O_(3)-PbTiO_(3) multiferroic heterostructure 被引量:2
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作者 Hang XU Bo WANG +6 位作者 Ji Qi Mei LIU Fei TENG linglong hu Yuan ZHANG Chaoqun QU Ming FENG 《Journal of Advanced Ceramics》 SCIE EI CAS CSCD 2022年第3期515-521,共7页
Motivated by the fast-developing spin dynamics in ferromagnetic/piezoelectric structures, this study attempts to manipulate magnons (spin-wave excitations) by the converse magnetoelectric (ME) coupling. Herein, electr... Motivated by the fast-developing spin dynamics in ferromagnetic/piezoelectric structures, this study attempts to manipulate magnons (spin-wave excitations) by the converse magnetoelectric (ME) coupling. Herein, electric field (E-field) tuning magnetism, especially the surface spin wave, is accomplished in Ni/0.7Pb(Mg_(1/3)Nb_(2/3))O_(3)-0.3PbTiO_(3) (PMN-PT) multiferroic heterostructures. The Kerr signal (directly proportional to magnetization) changes of Ni film are observed when direct current (DC) or alternative current (AC) voltage is applied to PMN-PT substrate, where the signal can be modulated breezily even without extra magnetic field (H-field) in AC-mode measurement. Deserved to be mentioned, a surface spin wave switch of “1” (i.e., “on”) and “0” (i.e., “off”) has been created at room temperature upon applying an E-field. In addition, the magnetic anisotropy of heterostructures has been investigated by E-field-induced ferromagnetic resonance (FMR) shift, and a large 490 Oe shift of FMR is determined at the angle of 45° between H-field and heterostructure plane. 展开更多
关键词 spin dynamics multiferroic heterostructure non-volatile magnetic anisotropy spin wave switch
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