A tunable Kondo effect in quantum dots

被引：1518
作者：
Cronenwett, SM
Oosterkamp, TH
Kouwenhoven, LP
机构：
[1] Delft Univ Technol, Dept Appl Phys, NL-2600 GA Delft, Netherlands
[2] Delft Univ Technol, DIMES, NL-2600 GA Delft, Netherlands
[3] Stanford Univ, Dept Phys, Stanford, CA 94305 USA
来源：
SCIENCE | 1998年 / 281卷 / 5376期
关键词：
D O I：
10.1126/science.281.5376.540
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
A tunable Kondo effect has been realized in small quantum dots. A dot can be switched from a Kondo system to a non-Kondo system as the number of electrons on the dot is changed from odd to even. The Kondo temperature can be tuned by means of a gate voltage as a single-particle energy state nears the Fermi energy. Measurements of the temperature and magnetic field dependence of a Coulomb-blockaded dot show good agreement with predictions of both equilibrium and nonequilibrium Kondo effects.
引用
收藏
页码：540 / 544
页数：5
相关论文
共 22 条
[1]  
AVERIN DV, 1991, SINGLE CHARGE TUNN B, V294, P217
[2]   REVIEW OF TECHNIQUES IN THE LARGE-N EXPANSION FOR DILUTE MAGNETIC-ALLOYS [J].
BICKERS, NE .
REVIEWS OF MODERN PHYSICS, 1987, 59 (04) :845-939
[3]   ELECTRON-SPIN RESONANCE IN THE TWO-DIMENSIONAL ELECTRON-GAS OF GAAS-ALXGA1-XAS HETEROSTRUCTURES [J].
DOBERS, M ;
VONKLITZING, K ;
WEIMANN, G .
PHYSICAL REVIEW B, 1988, 38 (08) :5453-5456
[4]   EFFECTS OF QUANTUM LEVELS ON TRANSPORT THROUGH A COULOMB ISLAND [J].
FOXMAN, EB ;
MCEUEN, PL ;
MEIRAV, U ;
WINGREEN, NS ;
MEIR, Y ;
BELK, PA ;
BELK, NR ;
KASTNER, MA ;
WIND, SJ .
PHYSICAL REVIEW B, 1993, 47 (15) :10020-10023
[5]  
GLAZMAN LI, 1988, PISMA ESKP TEOR FIZ, V47, P378
[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]   PROBING THE KONDO RESONANCE BY RESONANT TUNNELING THROUGH AN ANDERSON IMPURITY [J].
HERSHFIELD, S ;
DAVIES, JH ;
WILKINS, JW .
PHYSICAL REVIEW LETTERS, 1991, 67 (26) :3720-3721
[8]  
INOSHIT AT, 1997, SUPERLATTICE MICROST, V22, P75
[9]   CORRELATED ELECTRON-TRANSPORT THROUGH A QUANTUM-DOT - THE MULTIPLE-LEVEL EFFECT [J].
INOSHITA, T ;
SHIMIZU, A ;
KURAMOTO, Y ;
SAKAKI, H .
PHYSICAL REVIEW B, 1993, 48 (19) :14725-14728
[10]   ON THE ELECTRON-TRANSPORT THROUGH A QUANTUM DOT [J].
KAWABATA, A .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1991, 60 (10) :3222-3225
123