Evidence for a least vibration model of superconductivity

Jui H. Wang; Min Qi; Xichun Liu; Athos Petrou

doi:10.1016/0921-4534(90)90034-C

Evidence for a least vibration model of superconductivity

Jui H. Wang
, Min Qi
, Xichun Liu
, Athos Petrou

Physics

SUNY Buffalo

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

A new method has been developed for the reversible removal of excess oxygen atoms or holes in the Tl-Ba-Ca-Cu-O type of superconductor without altering its general lattice structure. It has been found by this method that changes in T_c and Raman spectrum of the superconductor can be simply correlated with the concentration of excess oxygen and that a 634 cm^-1 phonon is closely associated with the superconducting holes. Replacement of ¹⁶O by ¹⁸O atoms at the holes causes a 3.6% decrease in the frequency of this phonon without a similar change in T_c. With these new results as supporting evidence, a least vibration model of superconductivity is suggested.

Original language	English
Pages (from-to)	399-404
Number of pages	6
Journal	Physica C: Superconductivity and its Applications
Volume	166
Issue number	5-6
DOIs	https://doi.org/10.1016/0921-4534(90)90034-C
State	Published - Apr 1 1990

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title = "Evidence for a least vibration model of superconductivity",

abstract = "A new method has been developed for the reversible removal of excess oxygen atoms or holes in the Tl-Ba-Ca-Cu-O type of superconductor without altering its general lattice structure. It has been found by this method that changes in Tc and Raman spectrum of the superconductor can be simply correlated with the concentration of excess oxygen and that a 634 cm-1 phonon is closely associated with the superconducting holes. Replacement of 16O by 18O atoms at the holes causes a 3.6\% decrease in the frequency of this phonon without a similar change in Tc. With these new results as supporting evidence, a least vibration model of superconductivity is suggested.",

author = "Wang, \{Jui H.\} and Min Qi and Xichun Liu and Athos Petrou",

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T1 - Evidence for a least vibration model of superconductivity

AU - Wang, Jui H.

AU - Qi, Min

AU - Liu, Xichun

AU - Petrou, Athos

PY - 1990/4/1

Y1 - 1990/4/1

N2 - A new method has been developed for the reversible removal of excess oxygen atoms or holes in the Tl-Ba-Ca-Cu-O type of superconductor without altering its general lattice structure. It has been found by this method that changes in Tc and Raman spectrum of the superconductor can be simply correlated with the concentration of excess oxygen and that a 634 cm-1 phonon is closely associated with the superconducting holes. Replacement of 16O by 18O atoms at the holes causes a 3.6% decrease in the frequency of this phonon without a similar change in Tc. With these new results as supporting evidence, a least vibration model of superconductivity is suggested.

AB - A new method has been developed for the reversible removal of excess oxygen atoms or holes in the Tl-Ba-Ca-Cu-O type of superconductor without altering its general lattice structure. It has been found by this method that changes in Tc and Raman spectrum of the superconductor can be simply correlated with the concentration of excess oxygen and that a 634 cm-1 phonon is closely associated with the superconducting holes. Replacement of 16O by 18O atoms at the holes causes a 3.6% decrease in the frequency of this phonon without a similar change in Tc. With these new results as supporting evidence, a least vibration model of superconductivity is suggested.

UR - https://www.scopus.com/pages/publications/0025417285

U2 - 10.1016/0921-4534(90)90034-C

DO - 10.1016/0921-4534(90)90034-C

M3 - Article

AN - SCOPUS:0025417285

SN - 0921-4534

VL - 166

SP - 399

EP - 404

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - 5-6

ER -

Evidence for a least vibration model of superconductivity

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