Transport through quantum dots in mesoscopic circuits

被引:38
作者
Cornaglia, PS
Balseiro, CA
机构
[1] Comis Nacl Energia Atom, Inst Balseiro, Rio Negro, Argentina
[2] Comis Nacl Energia Atom, Ctr Atom Bariloche, Rio Negro, Argentina
关键词
D O I
10.1103/PhysRevLett.90.216801
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We study the transport through a quantum dot, in the Kondo Coulomb blockade valley, embedded in a mesoscopic device with finite wires. The quantization of states in the circuit that hosts the quantum dot gives rise to finite size effects. These effects make the conductance sensitive to the ratio of the Kondo screening length to the wires length and provide a way of measuring the Kondo cloud. We present results obtained with the numerical renormalization group for a wide range of physically accessible parameters.
引用
收藏
页数:4
相关论文
共 19 条
[1]   Detecting the Kondo screening cloud around a quantum dot [J].
Affleck, I ;
Simon, P .
PHYSICAL REVIEW LETTERS, 2001, 86 (13) :2854-2857
[2]   Kondo impurities in nanoscopic systems: Confinement-induced regimes [J].
Cornaglia, PS ;
Balseiro, CA .
PHYSICAL REVIEW B, 2002, 66 (11) :1-5
[3]   Transmission phase shift of a quantum dot with Kondo correlations [J].
Gerland, U ;
von Delft, J ;
Costi, TA ;
Oreg, Y .
PHYSICAL REVIEW LETTERS, 2000, 84 (16) :3710-3713
[4]   SUPERCONDUCTIVITY OF SMALL TIN PARTICLES MEASURED BY TUNNELING [J].
GIAEVER, I ;
ZELLER, HR .
PHYSICAL REVIEW LETTERS, 1968, 20 (26) :1504-&
[5]  
GLAZMAN LI, 1988, JETP LETT+, V47, P452
[6]   Kondo effect in a single-electron transistor [J].
Goldhaber-Gordon, D ;
Shtrikman, H ;
Mahalu, D ;
Abusch-Magder, D ;
Meirav, U ;
Kastner, MA .
NATURE, 1998, 391 (6663) :156-159
[7]  
Hewson A, 1993, KONDO PROBLEM HEAVY
[8]   Quantum phase transition in a multilevel dot [J].
Hofstetter, W ;
Schoeller, H .
PHYSICAL REVIEW LETTERS, 2002, 88 (01) :4
[9]  
Izumida W, 2002, PHYS REV LETT, V87
[10]   Phase evolution in a Kondo-correlated system [J].
Ji, Y ;
Heiblum, M ;
Sprinzak, D ;
Mahalu, D ;
Shtrikman, H .
SCIENCE, 2000, 290 (5492) :779-783