Nonequilibrium and parity effects in the tunneling conductance of ultrasmall superconducting grains

被引：9

作者：

Agam, O

Aleiner, IL

机构：

[1] NEC Research Institute, Princeton, NJ 08540

来源：

PHYSICAL REVIEW B | 1997年 / 56卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.56.R5759

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A recent experiment on the tunneling spectra of ultrasmall superconducting grains revealed an unusual structure of the lowest differential conductance peak for grains in the odd charging states. We explain this behavior by nonequilibrium gapless excitations associated with different energy levels occupied by the unpaired electron. These excitations are generated by inelastic cotunneling.

引用

页码：R5759 / R5762

页数：4

共 15 条

[1] Chaos, interactions, and nonequilibrium effects in the tunneling resonance spectra of ultrasmall metallic particles
Agam, O
Wingreen, NS
Altshuler, BL
Ralph, DC
Tinkham, M
[J]. PHYSICAL REVIEW LETTERS, 1997, 78 (10) : 1956 - 1959
[2] Averin D. V., 1991, MESOSCOPIC PHENOMENA
[3] MACROSCOPIC QUANTUM TUNNELING OF THE ELECTRIC CHARGE IN SMALL TUNNEL-JUNCTIONS
AVERIN, DV
ODINTSOV, AA
[J]. PHYSICS LETTERS A, 1989, 140 (05) : 251 - 257
[4] VIRTUAL ELECTRON-DIFFUSION DURING QUANTUM TUNNELING OF THE ELECTRIC CHARGE
AVERIN, DV
NAZAROV, YV
[J]. PHYSICAL REVIEW LETTERS, 1990, 65 (19) : 2446 - 2449
[5] SINGLE-ELECTRON CHARGING OF A SUPERCONDUCTING ISLAND
AVERIN, DV
NAZAROV, YV
[J]. PHYSICAL REVIEW LETTERS, 1992, 69 (13) : 1993 - 1996
[6] AVERIN DV, 1990, SOV PHYS JETP, V71, P2067
[7] ZERO-DIMENSIONAL STATES AND SINGLE ELECTRON CHARGING IN QUANTUM DOTS
JOHNSON, AT
KOUWENHOVEN, LP
DEJONG, W
VANDERVAART, NC
HARMANS, CJPM
FOXON, CT
[J]. PHYSICAL REVIEW LETTERS, 1992, 69 (10) : 1592 - 1595
[8] THE SINGLE-ELECTRON TRANSISTOR
KASTNER, MA
[J]. REVIEWS OF MODERN PHYSICS, 1992, 64 (03) : 849 - 858
[9] Parity effect in ground state energies of ultrasmall superconducting grains
Matveev, KA
Larkin, AI
[J]. PHYSICAL REVIEW LETTERS, 1997, 78 (19) : 3749 - 3752
[10] Studies of electron energy levels in single metal particles
Ralph, DC
Black, CT
Tinkham, M
[J]. PHYSICA B, 1996, 218 (1-4): : 258 - 261

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