Direct observation of the Aharonov-Casher phase - art. no. 076804

被引：175

作者：

König, M

Tschetschetkin, A

Hankiewicz, EM

Sinova, J

Hock, V

Daumer, V

Schäfer, M

Becker, CR

Buhmann, H

Molenkamp, LW

机构：

[1] Univ Wurzburg, Inst Phys EP 3, D-97074 Wurzburg, Germany

[2] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA

[3] Univ Missouri, Dept Phys & Astron, Columbia, MO 65211 USA

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.96.076804

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Ring structures fabricated from HgTe/HgCdTe quantum wells have been used to study Aharonov-Bohm type conductance oscillations as a function of Rashba spin-orbit splitting strength. We observe nonmonotonic phase changes indicating that an additional phase factor modifies the electron wave function. We associate these observations with the Aharonov-Casher effect. This is confirmed by comparison with numerical calculations of the magnetoconductance for a multichannel ring structure within the Landauer-Buttiker formalism.

引用

收藏

页数：4

相关论文

共 27 条

[1] PHASE-CHANGE DURING A CYCLIC QUANTUM EVOLUTION [J].

AHARONOV, Y ;

ANANDAN, J .

PHYSICAL REVIEW LETTERS, 1987, 58 (16) :1593-1596

[2] TOPOLOGICAL QUANTUM EFFECTS FOR NEUTRAL PARTICLES [J].

AHARONOV, Y ;

CASHER, A .

PHYSICAL REVIEW LETTERS, 1984, 53 (04) :319-321

[3] SIGNIFICANCE OF ELECTROMAGNETIC POTENTIALS IN THE QUANTUM THEORY [J].

AHARONOV, Y ;

BOHM, D .

PHYSICAL REVIEW, 1959, 115 (03) :485-491

[4] SPIN-ORBIT BERRY PHASE IN CONDUCTING RINGS [J].

ARONOV, AG ;

LYANDAGELLER, YB .

PHYSICAL REVIEW LETTERS, 1993, 70 (03) :343-346

[5] QUANTAL PHASE-FACTORS ACCOMPANYING ADIABATIC CHANGES [J].

BERRY, MV .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1984, 392 (1802) :45-57

[6] OSCILLATORY EFFECTS AND THE MAGNETIC-SUSCEPTIBILITY OF CARRIERS IN INVERSION-LAYERS [J].

BYCHKOV, YA ;

RASHBA, EI .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1984, 17 (33) :6039-6045

[7] Quasiballistic transport in HgTe quantum-well nanostructures [J].

Daumer, V ;

Golombek, I ;

Gbordzoe, M ;

Novik, EG ;

Hock, V ;

Becker, CR ;

Buhmann, H ;

Molenkamp, LW .

APPLIED PHYSICS LETTERS, 2003, 83 (07) :1376-1378

[8] Comment on "ensemble-average spectrum of Aharonov-Bohm conductance oscillations: Evidence for spin-orbit-induced Berry's phase" [J].

De Raedt, H .

PHYSICAL REVIEW LETTERS, 1999, 83 (08) :1700-1700

[9] Spin interference effects in ring conductors subject to Rashba coupling [J].

Frustaglia, D ;

Richter, K .

PHYSICAL REVIEW B, 2004, 69 (23) :235310-1

[10] Investigation of iodine as a donor in MBE grown Hg1-xCdxTe [J].

Goschenhofer, F ;

Gerschutz, J ;

Pfeuffer-Jeschke, A ;

Hellmig, R ;

Becker, CR ;

Landwehr, G .

JOURNAL OF ELECTRONIC MATERIALS, 1998, 27 (06) :532-535