Abstract
The position Bvg of a field-tuned superconductor-insulator quantum transition occuring in disordered thin films is examined within the mean field approximation and starting from a hamiltonian of BCS type (favoring the s-wave pairing) with a random potential, and effects of an electron-electron repulsion on the transition field Bvg are also considered. Our calculation shows that the (microscopic) disorder-induced reduction of Bvg suggested experimentally cannot be explained without taking account of the familiar interplay between the randomness and the electron-electron repulsion enhancing the quantum superconducting fluctuation in such systems.
| Original language | English |
|---|---|
| Pages (from-to) | 245-253 |
| Number of pages | 9 |
| Journal | Journal of the Physical Society of Japan |
| Volume | 71 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 2002 |
| Externally published | Yes |
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Keywords
- Superconducting fluctuation
- Superconductor-insulator transition
- Vortex-glass transition
ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
Microscopic Study of Quantum Vortex-Glass Transition Field in Two-Dimensional Superconductors. / Ishida, Hideharu; Adachi, Hiroto; Ikeda, Ryusuke.
In: Journal of the Physical Society of Japan, Vol. 71, No. 1, 01.2002, p. 245-253.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Microscopic Study of Quantum Vortex-Glass Transition Field in Two-Dimensional Superconductors
AU - Ishida, Hideharu
AU - Adachi, Hiroto
AU - Ikeda, Ryusuke
PY - 2002/1
Y1 - 2002/1
N2 - The position Bvg of a field-tuned superconductor-insulator quantum transition occuring in disordered thin films is examined within the mean field approximation and starting from a hamiltonian of BCS type (favoring the s-wave pairing) with a random potential, and effects of an electron-electron repulsion on the transition field Bvg are also considered. Our calculation shows that the (microscopic) disorder-induced reduction of Bvg suggested experimentally cannot be explained without taking account of the familiar interplay between the randomness and the electron-electron repulsion enhancing the quantum superconducting fluctuation in such systems.
AB - The position Bvg of a field-tuned superconductor-insulator quantum transition occuring in disordered thin films is examined within the mean field approximation and starting from a hamiltonian of BCS type (favoring the s-wave pairing) with a random potential, and effects of an electron-electron repulsion on the transition field Bvg are also considered. Our calculation shows that the (microscopic) disorder-induced reduction of Bvg suggested experimentally cannot be explained without taking account of the familiar interplay between the randomness and the electron-electron repulsion enhancing the quantum superconducting fluctuation in such systems.
KW - Superconducting fluctuation
KW - Superconductor-insulator transition
KW - Vortex-glass transition
UR - http://www.scopus.com/inward/record.url?scp=0036302467&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036302467&partnerID=8YFLogxK
U2 - 10.1143/JPSJ.71.245
DO - 10.1143/JPSJ.71.245
M3 - Article
AN - SCOPUS:0036302467
VL - 71
SP - 245
EP - 253
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 1
ER -