Kondo effect in triple quantum dots: interplay between continuous and discrete symmetries

被引:1
作者
Kikoin, K [1 ]
Kuzmenko, T
Avishai, Y
机构
[1] Ben Gurion Univ Negev, Dept Phys, IL-84105 Beer Sheva, Israel
[2] Ben Gurion Univ Negev, Ilse Kats Ctr Nanotechnol, IL-84105 Beer Sheva, Israel
基金
以色列科学基金会;
关键词
quantum dots; Kondo effect; Aharonov-Bohm effect;
D O I
10.1016/j.physb.2006.01.494
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The physics of Kondo effect and related phenomena in a triangular triple quantum dot (TTQD) is studied. A fascinating property of TTQD is the interplay between continuous SU(2) symmetry in spin space and discrete C-3v symmetry in real space. We show that this interplay is manifested in strong oscillations of conductance as a function of magnetic flux through TTQD due to interplay between Kondo and Aharonov-Bohm effect. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:906 / 907
页数:2
相关论文
共 8 条
[1]   SU(4) Fermi liquid state and spin filtering in a double quantum dot system -: art. no. 026602 [J].
Borda, L ;
Zaránd, G ;
Hofstetter, W ;
Halperin, BI ;
von Delft, J .
PHYSICAL REVIEW LETTERS, 2003, 90 (02) :4
[2]   Tunable nonlocal spin control in a coupled-quantum dot system [J].
Craig, NJ ;
Taylor, JM ;
Lester, EA ;
Marcus, CM ;
Hanson, MP ;
Gossard, AC .
SCIENCE, 2004, 304 (5670) :565-567
[3]   Kondo effect in complex mesoscopic structures [J].
Entin-Wohlman, O ;
Aharony, A ;
Meir, Y .
PHYSICAL REVIEW B, 2005, 71 (03)
[4]  
ENTINWOHLMAN O, CONDMAT0412068
[5]   Kondo effect in systems with dynamical symmetries [J].
Kuzmenko, T ;
Kikoin, K ;
Avishai, Y .
PHYSICAL REVIEW B, 2004, 69 (19) :195109-1
[6]   Dynamical symmetries in Kondo tunneling through complex quantum dots [J].
Kuzmenko, T ;
Kikoin, K ;
Avishai, Y .
PHYSICAL REVIEW LETTERS, 2002, 89 (15)
[7]   Rectifying behavior in Coulomb blockades: Charging rectifiers [J].
Stopa, M .
PHYSICAL REVIEW LETTERS, 2002, 88 (14) :4
[8]   Triple quantum dot charging rectifier [J].
Vidan, A ;
Westervelt, RM ;
Stopa, M ;
Hanson, M ;
Gossard, AC .
APPLIED PHYSICS LETTERS, 2004, 85 (16) :3602-3604