Development of Graphene Quantum Hall Effect AC Metrology at RISE

被引：1
|
作者：
Wahlberg, Eric [1 ]
He, Hans [1 ]
Bergsten, Tobias [1 ]
Cedergren, Karin [1 ]
Eklund, Gunnar [1 ]
机构：
[1] RISE Res Inst Sweden, Box 857, SE-50115 Boras, Sweden
来源：
2024 CONFERENCE ON PRECISION ELECTROMAGNETIC MEASUREMENTS, CPEM 2024 | 2024年
关键词：
bridge circuits; capacitance; electrical resistance measurement; graphene; Hall effect; impedance measurement; RESISTANCE; DEVICES;
D O I：
10.1109/CPEM61406.2024.10646073
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We present the first steps taken towards a graphene quantum Hall effect ac resistance standard at RISE. A new measurement setup has been developed including a graphene quantum Hall effect device suitable for the kilohertz range and a coaxial cryoprobe to be used together with a coaxial impedance bridge based on inductive voltage dividers. 1:1 ratio resistance measurements of the graphene device against a 12.9 k Omega ac resistance standard resulted in a linear frequency dependent (approximate to 0.2 (mu O/O)/kHz) deviation from the quantized dc value.
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页数：2
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