Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Field dependence of superfluid density in β-PdBi2

Soda, Minoru ; Kagamida, Nao ; Mühlbauer, Sebastian ; Forgan, Edward M. ; Campillo, Emma LU orcid ; Kriener, Markus ; Yoshizawa, Hideki and Kawano-Furukawa, Hazuki (2021) In Journal of the Physical Society of Japan 90(10).
Abstract

Specific heat and small-angle neutron scattering measurements have been performed on the superconductor β-PdBi2. Whereas models with a uniform gap do not yield an adequate description of the temperature-dependent specific heat and the temperature and magnetic field dependence of the SANS intensity, fits to a heuristic model with two gap parameters agree well with both data sets. The fact that two parameters are required indicates a momentum-dependent gap anisotropy and=or gaps of different magnitude on different Fermi surface sheets. Fits to this model indicate that the ratio of the two gap parameters increases as a function of increasing field.

Please use this url to cite or link to this publication:
author
; ; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of the Physical Society of Japan
volume
90
issue
10
article number
104710
publisher
Physical Society of Japan
external identifiers
  • scopus:85117435622
ISSN
0031-9015
DOI
10.7566/JPSJ.90.104710
language
English
LU publication?
yes
additional info
Publisher Copyright: © 2021 The Physical Society of Japan
id
5e6b1e62-9eff-4e7e-a3a9-31738b3fd3db
date added to LUP
2021-11-05 10:53:31
date last changed
2025-04-04 14:39:55
@article{5e6b1e62-9eff-4e7e-a3a9-31738b3fd3db,
  abstract     = {{<p>Specific heat and small-angle neutron scattering measurements have been performed on the superconductor β-PdBi<sub>2</sub>. Whereas models with a uniform gap do not yield an adequate description of the temperature-dependent specific heat and the temperature and magnetic field dependence of the SANS intensity, fits to a heuristic model with two gap parameters agree well with both data sets. The fact that two parameters are required indicates a momentum-dependent gap anisotropy and=or gaps of different magnitude on different Fermi surface sheets. Fits to this model indicate that the ratio of the two gap parameters increases as a function of increasing field.</p>}},
  author       = {{Soda, Minoru and Kagamida, Nao and Mühlbauer, Sebastian and Forgan, Edward M. and Campillo, Emma and Kriener, Markus and Yoshizawa, Hideki and Kawano-Furukawa, Hazuki}},
  issn         = {{0031-9015}},
  language     = {{eng}},
  month        = {{10}},
  number       = {{10}},
  publisher    = {{Physical Society of Japan}},
  series       = {{Journal of the Physical Society of Japan}},
  title        = {{Field dependence of superfluid density in β-PdBi<sub>2</sub>}},
  url          = {{http://dx.doi.org/10.7566/JPSJ.90.104710}},
  doi          = {{10.7566/JPSJ.90.104710}},
  volume       = {{90}},
  year         = {{2021}},
}