Literature DB >> 19792393

Complex inductance, excess noise, and surface magnetism in dc SQUIDs.

S Sendelbach1, D Hover, M Mück, R McDermott.   

Abstract

We have characterized the complex inductance of dc SQUIDs cooled to millikelvin temperatures. The SQUID inductance displays a rich, history-dependent structure as a function of temperature, with fluctuations of order 1 fH. At a fixed temperature, the SQUID inductance fluctuates with a 1/f power spectrum; the inductance noise is highly correlated with the conventional 1/f flux noise. The data are interpreted in terms of the reconfiguration of clusters of surface spins, with correlated fluctuations of effective magnetic moments and relaxation times.

Year:  2009        PMID： 19792393     DOI： 10.1103/PhysRevLett.103.117001

Source DB:  PubMed          Journal:  Phys Rev Lett        ISSN： 0031-9007            Impact factor:   9.161


  4 in total

1.  Magnetic resonance force microscopy of paramagnetic electron spins at millikelvin temperatures.

Authors:  A Vinante; G Wijts; O Usenko; L Schinkelshoek; T H Oosterkamp
Journal:  Nat Commun       Date:  2011-12-06       Impact factor: 14.919

2.  Superconducting quantum circuits at the surface code threshold for fault tolerance.

Authors:  R Barends; J Kelly; A Megrant; A Veitia; D Sank; E Jeffrey; T C White; J Mutus; A G Fowler; B Campbell; Y Chen; Z Chen; B Chiaro; A Dunsworth; C Neill; P O'Malley; P Roushan; A Vainsencher; J Wenner; A N Korotkov; A N Cleland; John M Martinis
Journal:  Nature       Date:  2014-04-24       Impact factor: 49.962

3.  Magnetic flux noise in superconducting qubits and the gap states continuum.

Authors:  Dominik Szczęśniak; Sabre Kais
Journal:  Sci Rep       Date:  2021-01-19       Impact factor: 4.379

4.  On the nature of decoherence in quantum circuits: Revealing the structural motif of the surface radicals in α-Al2O3.

Authors:  Sun Un; Sebastian de Graaf; Patrice Bertet; Sergey Kubatkin; Andrey Danilov
Journal:  Sci Adv       Date:  2022-04-06       Impact factor: 14.136
  4 in total

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