Pith. sign in

REVIEW

Spectroscopy of Valley Splitting in a Silicon/Silicon-Germanium Two-Dimensional Electron Gas

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv cond-mat/0408389 v5 pith:6MMIHELM submitted 2004-08-18 cond-mat.mes-hall cond-mat.mtrl-sci

Srijit Goswami , Mark Friesen , J. L. Truitt , Charles Tahan , L. J. Klein , J. O. Chu , P. M. Mooney , D. W. van der Weide
show 3 more authors
S. N. Coppersmith Robert Joynt M. A. Eriksson
This is my paper
classification cond-mat.mes-hallcond-mat.mtrl-sci
keywords valleysplittingelectronlow-fieldquantumresonancesiliconspectroscopy
verification ladder T0 review T1 audit T2 compute T3 formal
0 comments
abstract

The lifting of the two-fold degeneracy of the conduction valleys in a strained silicon quantum well is critical for spin quantum computing. Here, we obtain an accurate measurement of the splitting of the valley states in the low-field region of interest, using the microwave spectroscopy technique of electron valley resonance (EVR). We compare our results with conventional methods, observing a linear magnetic field dependence of the valley splitting, and a strong low-field suppression, consistent with recent theory. The resonance linewidth shows a marked enhancement above $T\simeq 300$ mK.

Discussion (0). Sign in to comment.

Pith tools