Abstract
In order to study site-selective NMR in chiral p-wave superconductors, we calculate local nuclear relaxation rate T1-1 in the vortex lattice state by Eilenberger theory with and without non-magnetic impurity scattering in the Born limit and unitary limit. The local T1-1 in the NMR resonance line shape is different between two chiral states p ±, depending on whether the chirality is parallel or anti-parallel to the vorticity. In the p--wave, anomalous suppression of local T1-1 occurs around the vortex core due to the negative coherence term coming from odd-frequency s-wave Cooper pair induced around the vortex. We especially examine the site dependence of the anomalous suppression of local T1-1, including the applied magnetic field dependence and the impurity effects.
| Original language | English |
|---|---|
| Journal | Physica C: Superconductivity and its Applications |
| DOIs | |
| Publication status | Accepted/In press - Jan 30 2016 |
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Keywords
- Chiral p-wave superconductor
- Quasiclassical theory
- Vortex
ASJC Scopus subject areas
- Condensed Matter Physics
- Electrical and Electronic Engineering
- Energy Engineering and Power Technology
- Electronic, Optical and Magnetic Materials
Cite this
Effects of vorticity and impurity on NMR relaxation rate in chiral p-wave superconductors. / Tanaka, Kenta K.; Ichioka, Masanori; Onari, Seiichiro.
In: Physica C: Superconductivity and its Applications, 30.01.2016.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effects of vorticity and impurity on NMR relaxation rate in chiral p-wave superconductors
AU - Tanaka, Kenta K.
AU - Ichioka, Masanori
AU - Onari, Seiichiro
PY - 2016/1/30
Y1 - 2016/1/30
N2 - In order to study site-selective NMR in chiral p-wave superconductors, we calculate local nuclear relaxation rate T1-1 in the vortex lattice state by Eilenberger theory with and without non-magnetic impurity scattering in the Born limit and unitary limit. The local T1-1 in the NMR resonance line shape is different between two chiral states p ±, depending on whether the chirality is parallel or anti-parallel to the vorticity. In the p--wave, anomalous suppression of local T1-1 occurs around the vortex core due to the negative coherence term coming from odd-frequency s-wave Cooper pair induced around the vortex. We especially examine the site dependence of the anomalous suppression of local T1-1, including the applied magnetic field dependence and the impurity effects.
AB - In order to study site-selective NMR in chiral p-wave superconductors, we calculate local nuclear relaxation rate T1-1 in the vortex lattice state by Eilenberger theory with and without non-magnetic impurity scattering in the Born limit and unitary limit. The local T1-1 in the NMR resonance line shape is different between two chiral states p ±, depending on whether the chirality is parallel or anti-parallel to the vorticity. In the p--wave, anomalous suppression of local T1-1 occurs around the vortex core due to the negative coherence term coming from odd-frequency s-wave Cooper pair induced around the vortex. We especially examine the site dependence of the anomalous suppression of local T1-1, including the applied magnetic field dependence and the impurity effects.
KW - Chiral p-wave superconductor
KW - Quasiclassical theory
KW - Vortex
UR - http://www.scopus.com/inward/record.url?scp=84962016905&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84962016905&partnerID=8YFLogxK
U2 - 10.1016/j.physc.2016.03.003
DO - 10.1016/j.physc.2016.03.003
M3 - Article
AN - SCOPUS:84962016905
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
ER -