<P>We demonstrate the robust operation of a gallium arsenide tunable-barrier single-electron pump operating with 1 part-per-million accuracy at a temperature of 1.3 K and a pumping frequency of 500 MHz. The accuracy of current quantisation...
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https://www.riss.kr/link?id=A107427553
Giblin, S P ; Bae, M-H ; Kim, N ; Ahn, Ye-Hwan ; Kataoka, M
2017
-
SCI,SCIE,SCOPUS
학술저널
299-306(8쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
<P>We demonstrate the robust operation of a gallium arsenide tunable-barrier single-electron pump operating with 1 part-per-million accuracy at a temperature of 1.3 K and a pumping frequency of 500 MHz. The accuracy of current quantisation...
<P>We demonstrate the robust operation of a gallium arsenide tunable-barrier single-electron pump operating with 1 part-per-million accuracy at a temperature of 1.3 K and a pumping frequency of 500 MHz. The accuracy of current quantisation is investigated as a function of multiple control parameters, and robust plateaus are seen as a function of three control gate voltages and RF drive power. The electron capture is found to be in the decay-cascade, rather than the thermally-broadened regime. The observation of robust plateaus at an elevated temperature which does not require expensive refrigeration is an important step towards validating tunable-barrier pumps as practical current standards.</P>
Determination of the molar mass of argon from high-precision acoustic comparisons