Comparison of defect density measurements in magnetic tunnel junctions

被引:6
作者
Allen, D [1 ]
Schad, R
Zangari, G
Zana, I
Tondra, M
Wang, D
Reed, D
机构
[1] Univ Alabama, Dept Phys, Tuscaloosa, AL 35487 USA
[2] Univ Alabama, Ctr Mat Informat Technol, Tuscaloosa, AL 35487 USA
[3] Univ Alabama, Dept Met & Mat Engn, Tuscaloosa, AL 35487 USA
[4] Nonvolatile Elect, Eden Prairie, MN 55344 USA
关键词
D O I
10.1063/1.1356711
中图分类号
O59 [应用物理学];
学科分类号
摘要
Magnetic tunnel junctions may experience failure due to local shortcuts in the insulating layers of such devices. The quality of the insulating layers of these devices must be analyzed. We use electrodeposition to decorate pinholes and analyze the density of pinholes and pinhole precursors. Electrical breakdown measurements can also be performed on magnetic tunnel junctions to predict the probability of such devices failing. We discuss both experimental methods and compare the results obtained. It is observed that the two methods yield the same results for the areal defect density. (C) 2001 American Institute of Physics.
引用
收藏
页码:6662 / 6664
页数:3
相关论文
共 14 条
[1]   Pinhole decoration in magnetic tunnel junctions [J].
Allen, D ;
Schad, R ;
Zangari, G ;
Zana, I ;
Yang, D ;
Tondra, MC ;
Wang, D .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 2000, 18 (04) :1830-1833
[2]   Tunneling magnetoresistance in ferromagnetic junctions: Bias dependence [J].
Barnas, J ;
Lee, SF ;
Holody, P ;
Schelp, LF ;
Petroff, F ;
Fert, A .
ACTA PHYSICA POLONICA A, 1998, 93 (02) :387-391
[3]   Magnetic tunneling applied to memory [J].
Daughton, JM .
JOURNAL OF APPLIED PHYSICS, 1997, 81 (08) :3758-3763
[4]   Microstructured magnetic tunnel junctions [J].
Gallagher, WJ ;
Parkin, SSP ;
Lu, Y ;
Bian, XP ;
Marley, A ;
Roche, KP ;
Altman, RA ;
Rishton, SA ;
Jahnes, C ;
Shaw, TM ;
Xiao, G .
JOURNAL OF APPLIED PHYSICS, 1997, 81 (08) :3741-3746
[5]   TUNNELING BETWEEN FERROMAGNETIC-FILMS [J].
JULLIERE, M .
PHYSICS LETTERS A, 1975, 54 (03) :225-226
[6]   Spin-dependent tunneling in epitaxial systems: Band dependence of conductance [J].
MacLaren, JM ;
Butler, WH ;
Zhang, XG .
JOURNAL OF APPLIED PHYSICS, 1998, 83 (11) :6521-6523
[7]   Ferromagnetic-insulator-ferromagnetic tunneling: Spin-dependent tunneling and large magnetoresistance in trilayer junctions [J].
Moodera, JS ;
Kinder, LR .
JOURNAL OF APPLIED PHYSICS, 1996, 79 (08) :4724-4729
[8]   LARGE MAGNETORESISTANCE AT ROOM-TEMPERATURE IN FERROMAGNETIC THIN-FILM TUNNEL-JUNCTIONS [J].
MOODERA, JS ;
KINDER, LR ;
WONG, TM ;
MESERVEY, R .
PHYSICAL REVIEW LETTERS, 1995, 74 (16) :3273-3276
[9]   Analysis of breakdown in ferromagnetic tunnel junctions [J].
Oepts, W ;
Verhagen, HJ ;
Coehoorn, R ;
de Jonge, WJM .
JOURNAL OF APPLIED PHYSICS, 1999, 86 (07) :3863-3872
[10]  
REED DS, UNPUB