Study on spin dependent tunneling and Coulomb blockade in granular systems with restricted tunneling paths

被引：11

作者：

Mitani, S ^{[1
]}

Takanashi, K ^{[1
]}

Yakushiji, K ^{[1
]}

Chiba, J ^{[1
]}

Fujimori, H ^{[1
]}

机构：

[1] Tohoku Univ, Inst Mat Res, Aoba Ku, Sendai, Miyagi 9808577, Japan

来源：

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 2001年 / 84卷 / 1-2期

关键词：

Coulomb blockade; focused ion beam etching; granular film; scanning tunneling microscopy; single electron tunneling; tunnel magnetoresistance;

D O I：

10.1016/S0921-5107(01)00582-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We describe the microfabrication process of a granular nanobridge structure consisting of electrodes separated by a nanometer-sized gap in which a thin insulating Co-Al-O granular film is filled, and discuss the observed Coulomb blockade with a clear threshold voltage (V-th) and the enhanced tunnel magnetoresistance of about 30% at a voltage slightly above V-th. Recent results of our scanning tunneling microscopy studies to clarify the topographic features and single electron tunneling phenomena on the surface of Co-Al-O granular films are also presented. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：120 / 125

页数：6

共 50 条

[31] NONCLASSICAL LIGHT GENERATION BY COULOMB BLOCKADE OF RESONANT TUNNELING
IMAMOGLU, A
YAMAMOTO, Y
PHYSICAL REVIEW B, 1992, 46 (24) : 15982 - 15991
[32] Identification of Coulomb blockade and macroscopic quantum tunneling by noise
Grabert, H
Ingold, GL
EUROPHYSICS LETTERS, 2002, 58 (03): : 429 - 434
[33] Tunneling spectroscopy of quantum charge fluctuations in the Coulomb blockade
Matveev, KA
Glazman, LI
Baranger, HU
PHYSICAL REVIEW B, 1996, 53 (03): : 1034 - 1037
[34] Coulomb drag in systems with tunneling bridges
Oreg, Y
Kamenev, A
PHYSICAL REVIEW LETTERS, 1998, 80 (11) : 2421 - 2424
[35] Inversion of spin polarization and tunneling magnetoresistance in spin-dependent tunneling junctions
Sharma, M
Wang, SX
Nickel, JH
PHYSICAL REVIEW LETTERS, 1999, 82 (03) : 616 - 619
[36] Inversion of spin polarization and tunneling magnetoresistance in spin-dependent tunneling junctions
Phys Rev Lett, 3 (616):
[37] Semiclassical study on multidimensional effects in tunneling chemical reactions: Tunneling paths and tunneling tubes
Ushiyama, H
Takatsuka, K
JOURNAL OF CHEMICAL PHYSICS, 1997, 106 (17): : 7023 - 7035
[38] COULOMB BLOCKADE OF TUNNELING INTO A QUASI-ONE-DIMENSIONAL WIRE
MATVEEV, KA
GLAZMAN, LI
PHYSICAL REVIEW LETTERS, 1993, 70 (07) : 990 - 993
[39] Nonequilibrium Anderson model, Coulomb blockade and scanning tunneling spectroscopy
Makoshi, K
Mii, T
SURFACE SCIENCE, 1996, 357 (1-3) : 335 - 339
[40] COULOMB BLOCKADE OF TUNNELING IN A 2D-ELECTRON GAS
PASQUIER, C
GLATTLI, DC
MEIRAV, U
WILLIAMS, FIB
JIN, Y
ETIENNE, B
SURFACE SCIENCE, 1992, 263 (1-3) : 419 - 423

← 1 2 3 4 5 →