In-situ characterization of oxide growth for fabricating spin-dependent tunnel junctions

被引:5
作者
Wee, ATA [1 ]
Wang, SX
Sin, K
机构
[1] Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA
[2] Read Rite Corp, Fremont, CA 94539 USA
关键词
spin-dependent tunneling junction; tunneling magnetoresistance; plasma oxidation; in-situ resistive measurement; generalized Mott-Cabrera law;
D O I
10.1109/20.801043
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Ni45Fe55/Al2O3/Ni45Fe55 spin dependent tunneling junctions with an MR ratio of similar to 16.5 % have been fabricated, The Al2O3 barriers are formed by plasma oxidation, and the oxide growth is characterized by in-situ resistive measurements. The oxide barrier growth mode is greatly affected by process parameters, including shutter configuration, gas composition, and plasma power, The changes in oxide thickness can be modeled by a combination of the linear growth law and the generalized Mott-Cabrera law.
引用
收藏
页码:2949 / 2951
页数:3
相关论文
共 11 条
[1]  
BAILEY WE, 1999, IN PRESS J APPL PHYS
[2]  
Fehlner F.P., 1970, OXID MET, V2, P59, DOI DOI 10.1007/BF00603582
[3]  
FERY C, 1999, MRS SPRING S U
[4]   OXIDE-GROWTH IN AN RF PLASMA [J].
FROMHOLD, AT ;
BAKER, M .
JOURNAL OF APPLIED PHYSICS, 1980, 51 (12) :6377-6392
[5]   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
[6]  
MESERVEY R, 1994, PHYS REP, V238, P174
[7]   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
[8]  
Pauw L. J. v. d., 1958, PHILLIPS TECHNICAL R, V20, P220, DOI DOI 10.4236/JMP.2013.411179
[9]   THE MEAN FREE PATH OF ELECTRONS IN METALS [J].
SONDHEIMER, EH .
ADVANCES IN PHYSICS, 1952, 1 (01) :1-42
[10]   GLOW-DISCHARGE OXIDATION OF FRESHLY EVAPORATED ALUMINUM FILMS [J].
VRBA, J ;
WOODS, SB .
CANADIAN JOURNAL OF PHYSICS, 1972, 50 (06) :548-&