Theory of gap-node detection by angle-resolved specific heat measurement

P. Miranović, Masanori Ichioka, K. Machida, N. Nakai

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

The specific heat oscillation in the mixed state of type II superconductors is studied theoretically when rotating a field within a plane containing a gap minimum and maximum. The calculations are performed microscopically by solving the quasi-classical Eilenberger equation for vortex lattices. The field dependence of the oscillation amplitude can discriminate between the nodal and anisotropic gap with a finite minimum and the oscillation phase gives the gap minimum position on the Fermi surface. These also provide a way to separate out the anisotropic behaviour due to the Fermi velocity.

Original languageEnglish
Pages (from-to)7971-7980
Number of pages10
JournalJournal of Physics Condensed Matter
Volume17
Issue number50
DOIs
Publication statusPublished - Dec 21 2005

Fingerprint

Thermal variables measurement
Fermi surface
Superconducting materials
Specific heat
Vortex flow
heat measurement
specific heat
oscillations
Fermi surfaces
vortices

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Theory of gap-node detection by angle-resolved specific heat measurement. / Miranović, P.; Ichioka, Masanori; Machida, K.; Nakai, N.

In: Journal of Physics Condensed Matter, Vol. 17, No. 50, 21.12.2005, p. 7971-7980.

Research output: Contribution to journalArticle

Miranović, P. ; Ichioka, Masanori ; Machida, K. ; Nakai, N. / Theory of gap-node detection by angle-resolved specific heat measurement. In: Journal of Physics Condensed Matter. 2005 ; Vol. 17, No. 50. pp. 7971-7980.
@article{11045e3863004c8a9ce07a41ae50106d,
title = "Theory of gap-node detection by angle-resolved specific heat measurement",
abstract = "The specific heat oscillation in the mixed state of type II superconductors is studied theoretically when rotating a field within a plane containing a gap minimum and maximum. The calculations are performed microscopically by solving the quasi-classical Eilenberger equation for vortex lattices. The field dependence of the oscillation amplitude can discriminate between the nodal and anisotropic gap with a finite minimum and the oscillation phase gives the gap minimum position on the Fermi surface. These also provide a way to separate out the anisotropic behaviour due to the Fermi velocity.",
author = "P. Miranović and Masanori Ichioka and K. Machida and N. Nakai",
year = "2005",
month = "12",
day = "21",
doi = "10.1088/0953-8984/17/50/015",
language = "English",
volume = "17",
pages = "7971--7980",
journal = "Journal of Physics Condensed Matter",
issn = "0953-8984",
publisher = "IOP Publishing Ltd.",
number = "50",

}

TY - JOUR

T1 - Theory of gap-node detection by angle-resolved specific heat measurement

AU - Miranović, P.

AU - Ichioka, Masanori

AU - Machida, K.

AU - Nakai, N.

PY - 2005/12/21

Y1 - 2005/12/21

N2 - The specific heat oscillation in the mixed state of type II superconductors is studied theoretically when rotating a field within a plane containing a gap minimum and maximum. The calculations are performed microscopically by solving the quasi-classical Eilenberger equation for vortex lattices. The field dependence of the oscillation amplitude can discriminate between the nodal and anisotropic gap with a finite minimum and the oscillation phase gives the gap minimum position on the Fermi surface. These also provide a way to separate out the anisotropic behaviour due to the Fermi velocity.

AB - The specific heat oscillation in the mixed state of type II superconductors is studied theoretically when rotating a field within a plane containing a gap minimum and maximum. The calculations are performed microscopically by solving the quasi-classical Eilenberger equation for vortex lattices. The field dependence of the oscillation amplitude can discriminate between the nodal and anisotropic gap with a finite minimum and the oscillation phase gives the gap minimum position on the Fermi surface. These also provide a way to separate out the anisotropic behaviour due to the Fermi velocity.

UR - http://www.scopus.com/inward/record.url?scp=29044434423&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=29044434423&partnerID=8YFLogxK

U2 - 10.1088/0953-8984/17/50/015

DO - 10.1088/0953-8984/17/50/015

M3 - Article

VL - 17

SP - 7971

EP - 7980

JO - Journal of Physics Condensed Matter

JF - Journal of Physics Condensed Matter

SN - 0953-8984

IS - 50

ER -