Magnetoresistance signature of resonant states in electromigrated Ni nanocontacts

被引：7

作者：

Beaufrand, J. -B. ^{[1
]}

Dayen, J. -F. ^{[1
]}

Kemp, N. T. ^{[2
]}

Sokolov, A. ^{[3
]}

Doudin, B. ^{[1
]}

机构：

[1] IPCMS DMONS, UMR 7504, F-67034 Strasbourg 2, France

[2] Univ Hull, Dept Phys, Kingston Upon Hull HU6 7RX, Yorks, England

[3] Univ Nebraska, Dept Phys & Astron, Lincoln, NE 68588 USA

来源：

APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 14期

基金：

美国国家科学基金会;

关键词：

JUNCTIONS; TRANSPORT;

D O I：

10.1063/1.3576939

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Fundamental insight is reported into magnetoresistance properties of ballistic-type atomic size Ni nanojunctions obtained at low temperatures. Feedback-controlled electromigration was used to reveal the ballistic nature of the transport and stabilize samples of conductance values in the range of G(0) (G(0) = 2e(2)/h). Bias voltage dependent measurements identify a clear magnetoresistance fingerprint of resonant tunneling, revealing that localized states in the nanojunctions can be responsible for nonlinear behavior in the IV curves and the related magnetoresistance properties. (C) 2011 American Institute of Physics. [doi:10.1063/1.3576939]

引用

页数：3

共 21 条

[11] Fabrication of metallic electrodes with nanometer separation by electromigration [J].

Park, H ;

Lim, AKL ;

Alivisatos, AP ;

Park, J ;

McEuen, PL .

APPLIED PHYSICS LETTERS, 1999, 75 (02) :301-303

[12] The Kondo effect in ferromagnetic atomic contacts [J].

Reyes Calvo, M. ;

Fernandez-Rossier, Joaquin ;

Jose Palacios, Juan ;

Jacob, David ;

Natelson, Douglas ;

Untiedt, Carlos .

NATURE, 2009, 458 (7242) :1150-U85

[13] Electric field control of spin transport [J].

Sahoo, S ;

Kontos, T ;

Furer, J ;

Hoffmann, C ;

Gräber, M ;

Cottet, A ;

Schönenberger, C .

NATURE PHYSICS, 2005, 1 (02) :99-102

[14] Temperature dependence of anisotropic magnetoresistance and atomic rearrangements in ferromagnetic metal break junctions [J].

Shi, S. -F. ;

Bolotin, K. I. ;

Kuemmeth, F. ;

Ralph, D. C. .

PHYSICAL REVIEW B, 2007, 76 (18)

[15] Atomic motion in ferromagnetic break junctions [J].

Andrei Sokolov ;

Chunjuan Zhang ;

Evgeny Y. Tsymbal ;

Jody Redepenning ;

Bernard Doudin .

Nature Nanotechnology, 2007, 2 (9) :522-523

[16] The role of Joule heating in the formation of nanogaps by electromigration [J].

Trouwborst, M. L. ;

van der Molen, S. J. ;

van Wees, B. J. .

JOURNAL OF APPLIED PHYSICS, 2006, 99 (11)

[17] Resonant inversion of tunneling magnetoresistance [J].

Tsymbal, EY ;

Sokolov, A ;

Sabirianov, IF ;

Doudin, B .

PHYSICAL REVIEW LETTERS, 2003, 90 (18) :4

[18] Spin-dependent tunnelling in magnetic tunnel junctions [J].

Tsymbal, EY ;

Mryasov, ON ;

LeClair, PR .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2003, 15 (04) :R109-R142

[19] Ballistic anisotropic magnetoresistance [J].

Velev, J ;

Sabirianov, RF ;

Jaswal, SS ;

Tsymbal, EY .

PHYSICAL REVIEW LETTERS, 2005, 94 (12)

[20] Technology and metrology of new electronic materials and devices [J].

Vogel, Eric M. .

NATURE NANOTECHNOLOGY, 2007, 2 (01) :25-32

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