Nanoelectromechanical resonators from high-T c superconducting crystals of Bi 2 Sr 2 Ca 1 Cu 2 O-8+δ</h1

Journal article (2019)

Authors

Sudhir Kumar Sahu Indian Institute of Science
Jaykumar Vaidya Tata Institute of Fundamental Research
F.E. Schmidt Kavli institute of nanoscience Delft, QN/Steele Lab - AS
Digambar Jangade Tata Institute of Fundamental Research
Arumugam Thamizhavel Tata Institute of Fundamental Research
G.A. Steele Kavli institute of nanoscience Delft, QN/Steele Lab - AS
Mandar M. Deshmukh Tata Institute of Fundamental Research
V. Singh Indian Institute of Science
Research Group
QN/Steele Lab (AS) (TU Delft)
Copyright: © 2019 Sudhir Kumar Sahu, Jaykumar Vaidya, F.E. Schmidt, Digambar Jangade, Arumugam Thamizhavel, G.A. Steele, Mandar M. Deshmukh, V. Singh
DOI: https://doi.org/10.1088/2053-1583/ab0800
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Published Date

2019

Language

English

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Faculty

Applied Sciences

Department

QN/Quantum Nanoscience

Research Group

QN/Steele Lab

Abstract


In this report, we present nanoelectromechanical resonators fabricated with thin exfoliated crystals of a high-T
c
cuprate superconductor Bi
2
Sr
2
Ca
1
Cu
2
O. The mechanical readout is performed by capacitively coupling their motion to a coplanar waveguide microwave cavity fabricated with a superconducting alloy of molybdenum-rhenium. We demonstrate mechanical frequency tunability with external dc-bias voltage, and quality factors up to ∼36 600. Our spectroscopic and time-domain measurements show that mechanical dissipation in these systems is limited by the contact resistance arising from resistive outer layers. The temperature dependence of dissipation indicates the presence of tunneling states, further suggesting that their intrinsic performance could be as good as other two-dimensional atomic crystals such as graphene.

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