Extraction of the tunnel magnetocapacitance with two-terminal measurements

被引：12

作者：

Chang, Yin-Ming ^{[1
]}

Li, Kai-Shin ^{[1
]}

Huang, Hongbo ^{[1
,2
]}

Tung, Mean-Jue ^{[3
]}

Tong, Shi-Yuan ^{[3
]}

Lin, Minn-Tsong ^{[1
,4
]}

机构：

[1] Natl Taiwan Univ, Dept Phys, Taipei 106, Taiwan

[2] Nanjing Univ, Dept Phys, Nanjing 210008, Peoples R China

[3] Ind Technol Res Inst, Mat & Chem Res Labs, Hsinchu 310, Taiwan

[4] Acad Sinica, Inst Atom & Mol Sci, Taipei 106, Taiwan

来源：

JOURNAL OF APPLIED PHYSICS | 2010年 / 107卷 / 09期

关键词：

JUNCTIONS;

D O I：

10.1063/1.3407509

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The tunnel magnetocapacitance (TMC) of the magnetic tunnel junction has been investigated with a series of complex impedance spectra measured at varying magnetic field. To avoid the circuit complication in the four-terminal measurement with high frequency operation, two-terminal approach was developed by elimination of spin independent contribution apart from the junction area. A subsequent fitting process based on the difference spectra analysis gave the TMC ratio of -0.43% with the opposite dependence on the field as compared to the tunnel magnetoresistance (TMR) of 30.67%. This technique would be applied in the further development and integration of spintronics devices. (C) 2010 American Institute of Physics. [doi:10.1063/1.3407509]

引用

页数：4

共 10 条

[1] LARMOR PRECESSION AND THE TRAVERSAL TIME FOR TUNNELING [J].