Mo/Au Bilayer TES Resistive Transition Engineering

Author

Wang, G. ; Chang, C.L. ; Yefremenko, V. ; Novosad, V. ; Pearson, J. ; Divan, R. ; Carlstrom, J.E.

Author_Institution

High Energy Phys. Div., Argonne Nat. Lab., Argonne, IL, USA

Volume

25

Issue

3

fYear

2015

fDate

Jun-15

Firstpage

1

Lastpage

5

Abstract

We have investigated two types of superconducting transition edge sensor (TES) modified with structures on the surface. One is a Mo/Au TES modified with Nb stripes, which increase the transition temperature and broaden the transition width. Another is a Mo/Au TES modified with Au stripes, which decrease the transition temperature and broaden the transition width. It is experimentally demonstrated that the resistive transition profile of a TES can be desirably engineered with a superconductor and/or a normal metal by properly choosing the width and spacing of the modification stripes on the surface.

Keywords

gold; molybdenum; niobium; superconducting microwave devices; superconducting transition temperature; type II superconductors; Mo-Au; Mo/Au bilayer TES resistive transition engineering; Nb; Nb stripes; resistive transition profile; superconducting transition sensor; transition temperature; transition width; Bolometers; Current measurement; Gold; Niobium; Resistance; Temperature measurement; Bolometer; Superconductivity; bolometer; proximity effect; superconductivity; transition edge sensor;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2014.2379011

Filename

6980131