Effect of edge transmission and elastic scattering on the resistance of magnetic barriers: Experiment and theory

被引：71

作者：

Cerchez, M.

Hugger, S.

Heinzel, T.

Schulz, N.

机构：

[1] Univ Dusseldorf, D-40225 Dusseldorf, Germany

[2] Fraunhofer Inst Appl Solid State Phys, D-79108 Freiburg, Germany

来源：

PHYSICAL REVIEW B | 2007年 / 75卷 / 03期

关键词：

D O I：

10.1103/PhysRevB.75.035341

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Strong magnetic barriers are defined in two-dimensional electron gases by magnetizing dysprosium ferromagnetic platelets on top of a Ga[Al]As heterostructure. A small resistance across the barrier is observed even deep inside the closed regime. We have used semiclassical simulations to explain this behavior quantitatively in terms of a combined effect of elastic electron scattering inside the barrier region and ExB drift at the intersection of the magnetic barrier with the edge of the Hall bar.

引用

收藏

页数：6

相关论文

共 40 条

[1] ELECTRONIC-PROPERTIES OF TWO-DIMENSIONAL SYSTEMS [J].

ANDO, T ;

FOWLER, AB ;

STERN, F .

REVIEWS OF MODERN PHYSICS, 1982, 54 (02) :437-672

[2] BILLIARD MODEL OF A BALLISTIC MULTIPROBE CONDUCTOR [J].

BEENAKKER, CWJ ;

VANHOUTEN, H .

PHYSICAL REVIEW LETTERS, 1989, 63 (17) :1857-1860

[3] MAGNETIC PROPERTIES OF DYSPROSIUM SINGLE CRYSTALS [J].

BEHRENDT, DR ;

LEGVOLD, S ;

SPEDDING, FH .

PHYSICAL REVIEW, 1958, 109 (05) :1544-1547

[4] TWO-DIMENSIONAL SPACE-CHARGE LAYER IN A TILTED MAGNETIC-FIELD [J].

BHATTACHARYA, SK .

PHYSICAL REVIEW B, 1982, 25 (06) :3756-3766

[5] 4-TERMINAL PHASE-COHERENT CONDUCTANCE [J].

BUTTIKER, M .

PHYSICAL REVIEW LETTERS, 1986, 57 (14) :1761-1764

[6] Response function of a Hall magnetosensor in the diffusive regime [J].

Cornelissens, YG ;

Peeters, FM .

JOURNAL OF APPLIED PHYSICS, 2002, 92 (04) :2006-2012

[7] Transport properties of quantum dots with steep walls -: art. no. 125309 [J].

Fuhrer, A ;

Lüscher, S ;

Heinzel, T ;

Ensslin, K ;

Wegscheider, W ;

Bichler, M .

PHYSICAL REVIEW B, 2001, 63 (12)

[8] Electrical transport of 2D electrons in non-uniform magnetic fields [J].

Gallagher, BL ;

Kubrak, V ;

Rushforth, AW ;

Neumann, AC ;

Edmonds, KW ;

Main, PC ;

Henini, M ;

Marrows, CH ;

Hickey, BJ ;

Thoms, S .

PHYSICA E, 2001, 11 (2-3) :171-176

[9] Electron-spin polarization in magnetically modulated quantum structures [J].

Guo, Y ;

Gu, BL ;

Zeng, Z ;

Yu, JZ ;

Kawazoe, Y .

PHYSICAL REVIEW B, 2000, 62 (04) :2635-2639

[10]

Guo Y, 2002, PHYS REV B, V66, DOI 10.1103/PhysRevB.66.045312

← 1 2 3 4 →