Full Record and Graph
ESI Special Topics, June
2005
Citing URL - http://www.esi-topics.com/superfluids/interviews/paper2.html
|
#2 Paper of the Top
20 Papers in Superfluids
|
| Title: |
IMPORTANCE OF PHASE FLUCTUATIONS IN SUPERCONDUCTORS WITH SMALL SUPERFLUID
DENSITY |
| Authors: |
EMERY
VJ, KIVELSON SA |
| Source: |
NATURE 374 (6521): 434-437 MAR 30 1995 |
| Document
Type: |
Article |
Language: |
English |
| Cited
References: |
31 |
Times
Cited: |
661 |
| Abstract: |
THE superconducting state of a metal is characterized by a complex
order parameter with an amplitude and a phase. In the BCS-Eliashberg mean-field
theory(1), which is a very good approximation for conventional metals, the phase
of the order parameter is unimportant for determining the value of the
transition temperature T-c and the change of many physical properties brought
about by the transition. Here we argue that superconductors with low
superconducting carrier density (such as the organic and high-T-c oxide
superconductors) are characterized by a relatively small phase 'stiffness' and
poor screening, both of which imply a significantly larger role for phase
fluctuations. As a consequence, in these materials the transition to the
superconducting state may not display typical mean-field behaviour, and phase
fluctuations, both classical and quantum, may have a significant influence on
low-temperature properties, For some quasi-two-dimensional materials, notably
underdoped high-temperature superconductors, the onset of long-range phase order
controls the gross value of T-c as well as its systematic variation from one
material to another. |
| Keywords
Plus: |
HEAVY-FERMION SUPERCONDUCTORS; LONDON PENETRATION DEPTH;
MAGNETIC-FIELD; NORMAL STATE; TEMPERATURE; TL2BA2CUO6+DELTA; CUPRATE; UBE13; TC |
| Addresses: |
EMERY VJ (reprint author), BROOKHAVEN NATL LAB, DEPT PHYS, UPTON, NY
11973 USA
UNIV CALIF LOS ANGELES, DEPT PHYS, LOS ANGELES, CA 90095 USA |
| Publisher: |
MACMILLAN MAGAZINES LTD, 4 LITTLE ESSEX STREET, LONDON, ENGLAND WC2R
3LF |
Subject
Category: |
MULTIDISCIPLINARY SCIENCES |
| IDS
Number: |
QP899 |
ISSN: |
0028-0836 |
|
|
|
|
 When
using the ISI
Essential
Science Indicators
Web product to view an article, you can click the "GO TO
WEB OF SCIENCE" button to read
the full record of that article (for ISI Essential Science
Indicators and ISI Web
of Science subscribers only). |
|
|
|
|
ESI Special Topics,
June 2005
Citing URL - http://www.esi-topics.com/superfluids/interviews/paper2.html
|
|
|
.