Abstract
When magnetic field is applied parallel to the ab-plane in d x2-y2-wave superconductors, the transition of a stable vortex lattice structure, the spatial structure of local density of states, and the specific heat oscillation induced by rotation of the magnetic field orientation are investigated by quantitative calculations based on the self-consistent Eilenberger theory. We estimate how the vortex state changes depending on the relative angle between the node direction of the superconducting gap and magnetic field orientation. To reproduce the sign change of specific heat oscillation observed in CeCoIn5, our study is perfomed by including a strong paramagnetic effect. The quantitative theoretical calculations give decisive information to analyze the experimental data on the field-angle dependence, and establish the angle-resolved specific heat experiment as a spectroscopic means to identify the node position of the superconducting gap.
| Original language | English |
|---|---|
| Article number | 094709 |
| Journal | Journal of the Physical Society of Japan |
| Volume | 79 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - Sep 2010 |
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Keywords
- Eilenberger theory
- Paramagnetic effect
- Specific heat oscillation
- Vortex state under parallel field
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Vortex state and field-angle resolved specific heat oscillation for H ∥ ab in d-wave superconductors. / Hiragi, Masayuki; Suzuki, Kenta M.; Ichioka, Masanori; Machida, Kazushige.
In: Journal of the Physical Society of Japan, Vol. 79, No. 9, 094709, 09.2010.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Vortex state and field-angle resolved specific heat oscillation for H ∥ ab in d-wave superconductors
AU - Hiragi, Masayuki
AU - Suzuki, Kenta M.
AU - Ichioka, Masanori
AU - Machida, Kazushige
PY - 2010/9
Y1 - 2010/9
N2 - When magnetic field is applied parallel to the ab-plane in d x2-y2-wave superconductors, the transition of a stable vortex lattice structure, the spatial structure of local density of states, and the specific heat oscillation induced by rotation of the magnetic field orientation are investigated by quantitative calculations based on the self-consistent Eilenberger theory. We estimate how the vortex state changes depending on the relative angle between the node direction of the superconducting gap and magnetic field orientation. To reproduce the sign change of specific heat oscillation observed in CeCoIn5, our study is perfomed by including a strong paramagnetic effect. The quantitative theoretical calculations give decisive information to analyze the experimental data on the field-angle dependence, and establish the angle-resolved specific heat experiment as a spectroscopic means to identify the node position of the superconducting gap.
AB - When magnetic field is applied parallel to the ab-plane in d x2-y2-wave superconductors, the transition of a stable vortex lattice structure, the spatial structure of local density of states, and the specific heat oscillation induced by rotation of the magnetic field orientation are investigated by quantitative calculations based on the self-consistent Eilenberger theory. We estimate how the vortex state changes depending on the relative angle between the node direction of the superconducting gap and magnetic field orientation. To reproduce the sign change of specific heat oscillation observed in CeCoIn5, our study is perfomed by including a strong paramagnetic effect. The quantitative theoretical calculations give decisive information to analyze the experimental data on the field-angle dependence, and establish the angle-resolved specific heat experiment as a spectroscopic means to identify the node position of the superconducting gap.
KW - Eilenberger theory
KW - Paramagnetic effect
KW - Specific heat oscillation
KW - Vortex state under parallel field
UR - http://www.scopus.com/inward/record.url?scp=77957066489&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77957066489&partnerID=8YFLogxK
U2 - 10.1143/JPSJ.79.094709
DO - 10.1143/JPSJ.79.094709
M3 - Article
AN - SCOPUS:77957066489
VL - 79
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 9
M1 - 094709
ER -