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Published July 2022 | Version v1
Journal article Metadata-only

Suppression of superconductivity in heavy-ion irradiated 2H-NbSe2 caused by negative pressure

Creators

  • 1. Tokyo University, Graduate School of Engineering, Department of Applied Physics, Tokyo (Japan)
  • 2. Central Research Institute of Electric Power Industry, Grid Innovation Research Laboratory, Yokosuka, Kanagawa (Japan)
  • 3. Japan Atomic Energy Agency, Advanced Science Research Center, Tokai, Ibaraki (Japan)

Description

Effects of columnar defects created by 320 MeV Au irradiation on 2H-NbSe2 single crystals with a dose equivalent matching field (BΦ) up to 16 T were studied. Critical temperature (Tc) is found to be suppressed almost linearly at a rate of 0.07 K/T. At the same time, the lattice parameters a and c are found to be expanded at rates of 0.016%/T and 0.030%/T, respectively. Such a lattice expansion should work as negative pressure to affect Tc. By separating the effect of heavy-ion irradiation on Tc suppression through lattice expansion and disorder, it is found that Tc is suppressed more by lattice expansion rather than by disorder. (author)

Availability note (English)

Available from DOI: https://doi.org/10.7566/JPSJ.91.074709

Additional details

Identifiers

DOI
10.7566/JPSJ.91.074709;

Publishing Information

Journal Title
Journal of the Physical Society of Japan (Online)
Journal Volume
91
Journal Issue
7
Journal Page Range
p. 074709.1-074709.7
ISSN
1347-4073

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
54016915
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
CHARGE DENSITY; CRITICAL CURRENT; CRITICAL TEMPERATURE; CRYSTAL LATTICES; CURRENT DENSITY; DOSE EQUIVALENTS; HEAVY IONS; HIMAC ACCELERATOR; IRRADIATION; LATTICE PARAMETERS; NIOBIUM SELENIDES; STOICHIOMETRY; SUPERCONDUCTIVITY; TYPE-II SUPERCONDUCTORS
Descriptors DEC
ACCELERATORS; CHALCOGENIDES; CHARGED PARTICLES; CRYSTAL STRUCTURE; CURRENTS; CYCLIC ACCELERATORS; ELECTRIC CONDUCTIVITY; ELECTRIC CURRENTS; ELECTRICAL PROPERTIES; HEAVY ION ACCELERATORS; IONS; NIOBIUM COMPOUNDS; PHYSICAL PROPERTIES; REFRACTORY METAL COMPOUNDS; SELENIDES; SELENIUM COMPOUNDS; SUPERCONDUCTORS; SYNCHROTRONS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION TEMPERATURE

Optional Information

Notes
53 refs., 5 figs.