An Adapted Tunneling Model for MgO-based Magnetic Tunneling Junctions

被引:0
作者
Chen, B. J. [1 ]
Tan, S. G. [1 ,2 ]
Cai, K. [1 ]
Tan, S. G. [1 ,2 ]
机构
[1] Natl Univ Singapore, Data Storage Inst, DSI Bldg,5 Engn Dr 1, Singapore 117608, Singapore
[2] Natl Univ Singapore, Comp Nanoelect & Nanodevice Lab, Singapore 117576, Singapore
来源
2012 12TH ANNUAL NON-VOLATILE MEMORY TECHNOLOGY SYMPOSIUM | 2012年
关键词
tunneling model; MgO barrier; magnetic tunneling junctions; ROOM-TEMPERATURE; MAGNETORESISTANCE; CONDUCTANCE;
D O I
暂无
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
We present a model for calculating the tunneling conductance and thus the tunneling magnetoresistance for MgO-based magnetic tunneling junctions. Both effects from the interface scattering and the barrier imperfection are considered in the model by introducing additional parameters. The temperature dependence of resistance is included by using a phenomenological model. This model successfully interprets the experimental results in the published literatures.
引用
收藏
页码:7 / 11
页数:5
相关论文
共 32 条
[1]   TUNNELING CONDUCTANCE OF ASYMMETRICAL BARRIERS [J].
BRINKMAN, WF ;
DYNES, RC ;
ROWELL, JM .
JOURNAL OF APPLIED PHYSICS, 1970, 41 (05) :1915-&
[2]   Atomic and electronic structure of the CoFeB/MgO interface from first principles [J].
Burton, J. D. ;
Jaswal, S. S. ;
Tsymbal, E. Y. ;
Mryasov, O. N. ;
Heinonen, O. G. .
APPLIED PHYSICS LETTERS, 2006, 89 (14)
[3]   Spin-dependent tunneling conductance of Fe|MgO|Fe sandwiches -: art. no. 054416 [J].
Butler, WH ;
Zhang, XG ;
Schulthess, TC ;
MacLaren, JM .
PHYSICAL REVIEW B, 2001, 63 (05)
[4]   Tunneling magnetoresistance from a symmetry filtering effect [J].
Butler, William H. .
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS, 2008, 9 (01)
[5]   ENERGY-BANDS IN FERROMAGNETIC IRON [J].
CALLAWAY, J ;
WANG, CS .
PHYSICAL REVIEW B, 1977, 16 (05) :2095-2105
[6]   Design Margin Exploration of Spin-Transfer Torque RAM (STT-RAM) in Scaled Technologies [J].
Chen, Yiran ;
Wang, Xiaobin ;
Li, Hai ;
Xi, Haiwen ;
Yan, Yuan ;
Zhu, Wenzhong .
IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, 2010, 18 (12) :1724-1734
[7]  
Davydov A. S., 1973, QUANTUM MECH
[8]   Spin-transfer switching in MgO-based magnetic tunnel junctions (invited) [J].
Diao, Zhitao ;
Pakala, Mahendra ;
Panchula, Alex ;
Ding, Yunfei ;
Apalkov, Dmytro ;
Wang, Lien-Chang ;
Chen, Eugene ;
Huai, Yiming .
JOURNAL OF APPLIED PHYSICS, 2006, 99 (08)
[9]   230% room-temperature magnetoresistance in CoFeB/MgO/CoFeB magnetic tunnel junctions [J].
Djayaprawira, DD ;
Tsunekawa, K ;
Nagai, M ;
Maehara, H ;
Yamagata, S ;
Watanabe, N ;
Yuasa, S ;
Suzuki, Y ;
Ando, K .
APPLIED PHYSICS LETTERS, 2005, 86 (09) :1-3
[10]   Interface scattering and the tunneling magnetoresistance of Fe(001)/MgO(001)/Fe(001) junctions [J].
Eames, M. E. ;
Inkson, J. C. .
APPLIED PHYSICS LETTERS, 2006, 88 (25)