Abstract
Focusing on a quantum-limit behavior, we study a single vortex in a clean s-wave type-II superconductor by self-consistently solving the Bogoliubov-de Gennes equation. The discrete energy levels of the vortex bound states in the quantum limit are discussed. The vortex core radius shrinks monotonically up to an atomic-scale length on lowering the temperature T, and the shrinkage stops to saturate at a lower T. The pair potential, supercurrent, and local density of states around the vortex exhibit Friedel-like oscillations. The local density of states has particle-hole asymmetry induced by the vortex. These are potentially observed directly by scanning tunneling microscopy.
| Original language | English |
|---|---|
| Pages (from-to) | 2921-2924 |
| Number of pages | 4 |
| Journal | Physical Review Letters |
| Volume | 80 |
| Issue number | 13 |
| Publication status | Published - 1998 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
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Low-lying quasiparticle excitations around a vortex core in quantum limit. / Hayashi, N.; Isoshima, T.; Ichioka, Masanori; Machida, K.
In: Physical Review Letters, Vol. 80, No. 13, 1998, p. 2921-2924.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Low-lying quasiparticle excitations around a vortex core in quantum limit
AU - Hayashi, N.
AU - Isoshima, T.
AU - Ichioka, Masanori
AU - Machida, K.
PY - 1998
Y1 - 1998
N2 - Focusing on a quantum-limit behavior, we study a single vortex in a clean s-wave type-II superconductor by self-consistently solving the Bogoliubov-de Gennes equation. The discrete energy levels of the vortex bound states in the quantum limit are discussed. The vortex core radius shrinks monotonically up to an atomic-scale length on lowering the temperature T, and the shrinkage stops to saturate at a lower T. The pair potential, supercurrent, and local density of states around the vortex exhibit Friedel-like oscillations. The local density of states has particle-hole asymmetry induced by the vortex. These are potentially observed directly by scanning tunneling microscopy.
AB - Focusing on a quantum-limit behavior, we study a single vortex in a clean s-wave type-II superconductor by self-consistently solving the Bogoliubov-de Gennes equation. The discrete energy levels of the vortex bound states in the quantum limit are discussed. The vortex core radius shrinks monotonically up to an atomic-scale length on lowering the temperature T, and the shrinkage stops to saturate at a lower T. The pair potential, supercurrent, and local density of states around the vortex exhibit Friedel-like oscillations. The local density of states has particle-hole asymmetry induced by the vortex. These are potentially observed directly by scanning tunneling microscopy.
UR - http://www.scopus.com/inward/record.url?scp=4243736698&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=4243736698&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:4243736698
VL - 80
SP - 2921
EP - 2924
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 13
ER -