Singlet-triplet minus mixing and relaxation lifetimes in a double donor dot

被引：2

作者：

Gorman, S. K. ^{[1
]}

Broome, M. A. ^{[1
]}

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

Hile, S. J. ^{[1
]}

Keizer, J. G. ^{[1
]}

Keith, D. ^{[1
]}

Watson, T. F. ^{[1
,2
]}

Baker, W. J. ^{[1
]}

Simmons, M. Y. ^{[1
]}

机构：

[1] Univ New South Wales, Ctr Excellence Quantum Computat & Commun Technol, Sch Phys, Sydney, NSW 2052, Australia

[2] Delft Univ Technol, Kavli Inst NanoSci, POB 5046, NL-2600 GA Delft, Netherlands

来源：

APPLIED PHYSICS LETTERS | 2018年 / 112卷 / 24期

基金：

澳大利亚研究理事会;

关键词：

SPIN-LATTICE RELAXATION; DOUBLE-QUANTUM DOT; ELECTRON-SPIN; SILICON; EXCHANGE; READOUT; STATES; QUBIT;

D O I：

10.1063/1.5021500

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We measure singlet-triplet mixing in a precision fabricated double donor dot comprising 2 and 1 phosphorus atoms separated by 16 +/- 1 nm. We identify singlet and triplet-minus states by performing a sequential independent spin readout of the two electron system and probe its dependence on magnetic field strength. The relaxation of singlet and triplet states is measured to be 12.4 +/- 1.0 s and 22.1 +/- 1.0 s, respectively, at B-z = 2.5 T. Published by AIP Publishing.

引用

页数：5

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