Kondo effect in magnetic tunnel junctions

被引：21

作者：

Lee, K. I.

Joo, S. J.

Lee, J. H.

Rhie, K. ^{[1
]}

Kim, Tae-Suk

Lee, W. Y.

Shin, K. H.

Lee, B. C.

LeClair, P.

Lee, J. -S.

Park, J. -H.

机构：

[1] Korea Inst Sci & Technol, Nano Device Res Ctr, Seoul 136792, South Korea

[2] Korea Univ, Dept Display & Semicond Phys, Chungnam 339700, South Korea

[3] Inha Univ, Dept Phys, Inchon 402751, South Korea

[4] Univ Alabama, MINT Ctr, Tuscaloosa, AL 35487 USA

[5] Pohang Univ Sci & Technol, Dept Phys, Pohang 790784, South Korea

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.98.107202

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Tunneling magnetoresistance was found to be suppressed with decreasing temperature for magnetic tunnel junctions (MTJs) oxidized under high plasma power. A strong temperature dependence of the junction resistance was observed, along with zero-bias anomalies of dynamic resistance at low temperatures. Resistance shows a logarithmic dependence on temperature, and resistance versus temperature exhibits a scaling behavior. Our experimental data can be explained in a consistent way by the Kondo effect in the MTJs with the Kondo temperature T-K=20-30 K.

引用

页数：4

共 50 条

[11] Diode effect in magnetic tunnel junctions with impurities
Kanjouri, F.
Ryzhanova, N.
Strelkov, N.
Vedyayev, A.
Dieny, B.
Journal of Applied Physics, 2005, 98 (08):
[12] Diode effect in magnetic tunnel junctions with impurities
Kanjouri, F
Ryzhanova, N
Strelkov, N
Vedyayev, A
Dieny, B
JOURNAL OF APPLIED PHYSICS, 2005, 98 (08)
[13] Magnetic tunnel junctions
Zhu, Jian-Gang
Park, Chando
MATERIALS TODAY, 2006, 9 (11) : 36 - 45
[14] MAGNETIC TUNNEL JUNCTIONS
STILES, PJ
ESAKI, L
VONMOLNA.S
SOLID STATE COMMUNICATIONS, 1967, 5 (10) : R12 - &
[15] Magnetic tunnel junctions
Reiss, Gunter
Schmalhorst, Jan
Thomas, Andre
Huetten, Andreas
Yuasa, Shinji
MAGNETIC HETEROSTRUCTURES: ADVANCES AND PERSPECTIVE IN SPINSTRUCTURES AND SPINTRANSPORT, 2008, 227 : 291 - 333
[16] Tunnel Magnetoresistance Effect in CoFeB/MgAlOx/CoFeB Magnetic Tunnel Junctions
Liu, Houfang
Ma, Qinli
Rizwan, Syed
Liu, Dongping
Wang, Shouguo
Han, Xiufeng
IEEE TRANSACTIONS ON MAGNETICS, 2011, 47 (10) : 2716 - 2719
[17] Theory of tunnel magnetoresistance and spin filter effect in magnetic tunnel junctions
Itoh, Hiroyoshi
JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2007, 40 (05) : 1228 - 1233
[18] Effect of ion irradiation on the characteristics of magnetic tunnel junctions
Banerjee, T
Som, T
Kanjilal, D
Moodera, JS
EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS, 2005, 32 (02): : 115 - 118
[19] Effect of interfacial scattering on the magnetoresistance of magnetic tunnel junctions
Vedyayev, A
Ryzhanova, N
Vlutters, R
Dieny, B
EUROPHYSICS LETTERS, 1999, 46 (06): : 808 - 814
[20] Magnetic tunnel junctions and their applications
Stobiecki, Tomasz
OPTOELECTRONIC AND ELECTRONIC SENSORS VI, 2006, 6348

← 1 2 3 4 5 →