Ultrasensitive Anomalous Hall Effect in Ta/CoFe/Oxide/Ta Multilayers
Ultrasensitive Anomalous Hall Effect in Ta/CoFe/Oxide/Ta Multilayers
复制标题
Ta/CoFe/氧化物/Ta 多层中的超灵敏反常霍尔效应
DOI:
10.1155/2016/9734610
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发表时间:
2016-12
影响因子:
1.5
通讯作者:
Yu Guanghua
中科院分区:
文献类型:
--
作者:
Yang Guang;Li Yongye;Chen Xi;Zhang Jingyan;Yu Guanghua
Ultrahigh anomalous Hall sensitivity has been demonstrated in Ta/CoFe/Oxide/Ta multilayers. By changing oxides (MgO and HfO2) and annealing temperature, different annealing dependence of sensitivity was found in MgO-sample and HfO2-sample. For the MgO-sample, the anomalous Hall sensitivity reaches 18792 Ω/T in the as-deposited state and significantly reduces as annealing temperature increases. On the contrary, the sensitivity of the as-deposited HfO2-sample is only 765 Ω/T, while it remarkably increases with annealing temperature increasing, finally reaching 14741 Ω/T at 240°C. The opposite variation of anomalous sensitivity in two samples originates from the different change of magnetic anisotropy and anomalous Hall resistance during the annealing process. Our study provides a new perspective that both the choice of oxide material and the optimization of annealing treatment are important to the anomalous Hall sensitivity.
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影响因子:
2.4
作者:
P. Ekins
通讯作者:
P. Ekins
影响因子:
1.9
作者:
F. Blattner
通讯作者:
F. Blattner
影响因子:
1.6
作者:
Vicki D Crinis
通讯作者:
Vicki D Crinis
影响因子:
0.2
作者:
R. Eglash
通讯作者:
R. Eglash
DOI:
10.1080/13573320701467344
发表时间:
2004-01
期刊:
Wiley-Blackwell: Development Policy Review
影响因子:
--
作者:
J. Roberts;D. Shaw;P. Sahoo;N. Harris;B. Persaud;M. Thakur;I. Gillson;A. Suleiman
通讯作者:
J. Roberts;D. Shaw;P. Sahoo;N. Harris;B. Persaud;M. Thakur;I. Gillson;A. Suleiman