Persistent Metastable States in Vortex Flow at the Peak Effect in NbSe{sub 2}

Journal Article · Tue Oct 01 00:00:00 EDT 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.77.3197· OSTI ID:388362

Merithew, R D; Rabin, M W; Weissman, M B ^[1]; Higgins, M J; Bhattacharya, S ^[2]

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1. Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801-3080 (United States)
2. NEC Research Institute, Princeton, New Jersey 08540 (United States)

Non-Gaussian flux-flow noise was measured in the {open_quote}{open_quote}peak-effect{close_quote}{close_quote} regime of NbSe{sub 2}. The form of the second spectra showed that neither flux bundles with Poisson statistics nor simple flow channels switching on and off could account for the noise. More complicated persistent flow patterns were needed. These metastable flow states were shown to correspond to different pinned configurations. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 388362
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 15 Vol. 77; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CRITICAL CURRENT
MAGNETIC FLUX
METASTABLE STATES
NIOBIUM SELENIDES
NOISE
SUPERCONDUCTIVITY
VORTICES