Many-body effects on the tunneling magnetoresistance of spin valves

被引：8

作者：

Hong, JS ^{[1
]}

Wu, RQ ^{[1
]}

Mills, DL ^{[1
]}

机构：

[1] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

来源：

PHYSICAL REVIEW B | 2002年 / 66卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.66.100406

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We suggest that in spin valve tunnel junctions, for appreciable voltages one should treat electrons injected into ferromagnetic constituents to be quasiparticles, renormalized by coupling to spin fluctuations. We illustrate effects that may occur as a consequence with a simple model calculation, where electrons are influenced by coupling to spin waves in one of two ferromagnetic films in the structure.

引用

页码：1 / 3

页数：3

共 7 条

[1] Tunneling of electrons in conventional and half-metallic systems: Towards very large magnetoresistance [J].

Bratkovsky, AM .

PHYSICAL REVIEW B, 1997, 56 (05) :2344-2347

[2] Spin dependent tunneling at finite bias [J].

Davis, AH ;

MacLaren, JM .

JOURNAL OF APPLIED PHYSICS, 2000, 87 (09) :5224-5226

[3] Theory of the spin dependence of the inelastic mean free path of electrons in ferromagnetic metals: A model study [J].

Hong, JS ;

Mills, DL .

PHYSICAL REVIEW B, 1999, 59 (21) :13840-13848

[4] Spin dependence of the inelastic electron mean free path in Fe and Ni: Explicit calculations and implications [J].

Hong, JS ;

Mills, DL .

PHYSICAL REVIEW B, 2000, 62 (09) :5589-5600

[5] Band structure and density of states effects in Co-based magnetic tunnel junctions [J].

LeClair, P ;

Kohlhepp, JT ;

van de Vin, CH ;

Wieldraaijer, H ;

Swagten, HJM ;

de Jonge, WJM ;

Davis, AH ;

MacLaren, JM ;

Moodera, JS ;

Jansen, R .

PHYSICAL REVIEW LETTERS, 2002, 88 (10) :4

[6] Interface magnetism and spin wave scattering in ferromagnet-insulator-ferromagnet tunnel junctions [J].

Moodera, JS ;

Nowak, J ;

van de Veerdonk, RJM .

PHYSICAL REVIEW LETTERS, 1998, 80 (13) :2941-2944

[7] Quenching of magnetoresistance by hot electrons in magnetic tunnel junctions [J].

Zhang, S ;

Levy, PM ;

Marley, AC ;

Parkin, SSP .

PHYSICAL REVIEW LETTERS, 1997, 79 (19) :3744-3747

← 1 →