Measurement of the Spin Relaxation Time of Single Electrons in a Silicon Metal-Oxide-Semiconductor-Based Quantum Dot

被引：116

作者：

Xiao, M. ^{[1
]}

House, M. G. ^{[1
]}

Jiang, H. W. ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.104.096801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate direct detection of individual electron spin states, together with measurement of spin relaxation time (T-1), in silicon metal-oxide-semiconductor-based quantum dots (QD). Excited state spectroscopy of the QD has been performed using a charge-sensing technique. T-1 of single spin excited states has been done in the time domain by a pump-and-probe method. For an odd and an even number of electrons, we found a magnetic field dependent and invariant T-1, respectively.

引用

页数：4

共 18 条

[1] Electrical control of spin relaxation in a quantum dot [J].

Amasha, S. ;

MacLean, K. ;

Radu, Iuliana P. ;

Zumbuehl, D. M. ;

Kastner, M. A. ;

Hanson, M. P. ;

Gossard, A. C. .

PHYSICAL REVIEW LETTERS, 2008, 100 (04)

[2] Spin relaxation and anticrossing in quantum dots: Rashba versus Dresselhaus spin-orbit coupling [J].

Bulaev, DV ;

Loss, D .

PHYSICAL REVIEW B, 2005, 71 (20)

[3] Excited-state spectroscopy on a nearly closed quantum dot via charge detection [J].

Elzerman, JM ;

Hanson, R ;

van Beveren, LHW ;

Vandersypen, LMK ;

Kouwenhoven, LP .

APPLIED PHYSICS LETTERS, 2004, 84 (23) :4617-4619

[4]

Elzerman JM, 2004, NATURE, V430, P431, DOI 10.1039/nature02693

[5] Phonon-induced decay of the electron spin in quantum dots [J].

Golovach, VN ;

Khaetskii, A ;

Loss, D .

PHYSICAL REVIEW LETTERS, 2004, 93 (01) :016601-1

[6] Controllable valley splitting in silicon quantum devices [J].

Goswami, Srijit ;

Slinker, K. A. ;

Friesen, Mark ;

McGuire, L. M. ;

Truitt, J. L. ;

Tahan, Charles ;

Klein, L. J. ;

Chu, J. O. ;

Mooney, P. M. ;

van der Weide, D. W. ;

Joynt, Robert ;

Coppersmith, S. N. ;

Eriksson, Mark A. .

NATURE PHYSICS, 2007, 3 (01) :41-45

[7] Transport in split-gate silicon quantum dots [J].

Gunther, A ;

Khoury, M ;

Milicic, S ;

Vasileska, D ;

Thornton, T ;

Goodnick, SM .

SUPERLATTICES AND MICROSTRUCTURES, 2000, 27 (5-6) :373-376

[8] Spins in few-electron quantum dots [J].

Hanson, R. ;

Kouwenhoven, L. P. ;

Petta, J. R. ;

Tarucha, S. ;

Vandersypen, L. M. K. .

REVIEWS OF MODERN PHYSICS, 2007, 79 (04) :1217-1265

[9]

HAYES RR, ARXIV09080173

[10] Progress towards single spin optoelectronics using quantum dot nanostructures [J].

Heiss, D ;

Kroutvar, M ;

Finley, JJ ;

Abstreiter, G .

SOLID STATE COMMUNICATIONS, 2005, 135 (9-10) :591-601

← 1 2 →