Coupled NanoSQUIDs and Nano-Electromechanical Systems (NEMS) Resonators

被引：15

作者：

Hao, L. ^{[1
]}

Cox, D. C. ^{[1
]}

Gallop, J. C. ^{[1
]}

Chen, J. ^{[2
]}

Rozhko, S. ^{[3
]}

Blois, A. ^{[3
]}

Romans, E. J. ^{[3
]}

机构：

[1] Natl Phys Lab, Teddington TW11 0LW, Middx, England

[2] Brunel Univ, Sch Engn & Design, Uxbridge UB8 3PH, Middx, England

[3] UCL, London Ctr Nanotechnol, London WC1H 0AH, England

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2013年 / 23卷 / 03期

关键词：

Mechanical resonators; nanoSQUIDs; NEMS; QUANTUM GROUND-STATE; MECHANICAL RESONATOR; MOTION; SQUID;

D O I：

10.1109/TASC.2012.2233536

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：

Recent developments in cryogenic nano-electromechanical (NEMS) resonators have shown that they can address some fundamental physics, for example in achieving the ground state of a mechanical resonator and entanglement with an electromagnetic resonator. In contrast, little work has been reported on using what is arguably the most sensitive measuring device, a SQUID, to directly interact with, and thus interrogate, a NEMS resonator. We report here our initial experimental results aimed towards forming an optimized coupled micro/nanomechanical resonator and a focused ion beam patterned Nb SQUID, possessing exceptionally low noise (similar to 200 n Phi(0/)Hz(1/2) above 1 kHz), and operating above 4.2 K. We describe our first results from a paddle-shaped mechanical resonator with a diameter of 15 mu m coupled to a Nb SQUID loop. Finally, we describe the construction of our first true nanoscale-coupled, double-clamped cantilever and nanoSQUID (rectangular loop area 100 nm x 900 nm).

引用

页数：4

共 16 条

[1] Nanoelectromechanical systems [J].