Voltage-Induced Nonvolatile Change of Magnetic Anisotropy of CoFeB Ultrathin Films Stacked With Multivalent Oxides
Voltage-Induced Nonvolatile Change of Magnetic Anisotropy of CoFeB Ultrathin Films Stacked With Multivalent Oxides
复制标题
多价氧化物堆叠CoFeB超薄膜磁各向异性的电压诱导非易失性变化
DOI:
10.1149/05805.0127ecst
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发表时间:
2013
期刊:
影响因子:
--
通讯作者:
Jiro Koba and Koji Kita
中科院分区:
文献类型:
--
作者:
H. Kozuka;T. Fukui;A. Yamano;H. Uchiyama and M.Takahashi;Jiro Koba and Koji Kita
Voltage-induced nonvolatile control of magnetic anisotropy was demonstrated with TiOx/CoFeB/Ta stacks. We observed a nonvolatile change of interface anisotropy energy at TiOx/CoFeB, probably caused by a motion of positively-charged oxygen vacancies in ultrathin TiOx layer. Our results indicate a possible application of this phenomenon to a new type of nonvolatile memories.