Local-charge-density transfer and organic superconductivity: A positron study

Y. Lou; H. L. Yen; J. M. Wrobel; H. Zhang; Y. C. Jean; G. Saito; Z. J. Huang; C. W. Chu

doi:10.1103/PhysRevB.49.12255

Local-charge-density transfer and organic superconductivity: A positron study

Y. Lou, H. L. Yen, J. M. Wrobel, H. Zhang, Y. C. Jean, G. Saito, Z. J. Huang, C. W. Chu

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Abstract

The temperature dependence between 4 and 294 K of the positron lifetime is measured in the organic superconductor -(BEDT-TTF)2Cu(NCS)2. The lifetime decreases rapidly with temperature from 350 to 343 ps below Tc, and increases monotonically above Tc to 372 ps. These experimental results are interpreted in terms of a transfer in the local charge density of organic superconductors associated with the superconducting transition. Theoretical positron density and positron-electron overlap distributions are calculated to support this interpretation.

Original language	English
Pages (from-to)	12255-12258
Number of pages	4
Journal	Physical Review B
Volume	49
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevB.49.12255
Publication status	Published - 1994

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1103/PhysRevB.49.12255

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title = "Local-charge-density transfer and organic superconductivity: A positron study",

abstract = "The temperature dependence between 4 and 294 K of the positron lifetime is measured in the organic superconductor -(BEDT-TTF)2Cu(NCS)2. The lifetime decreases rapidly with temperature from 350 to 343 ps below Tc, and increases monotonically above Tc to 372 ps. These experimental results are interpreted in terms of a transfer in the local charge density of organic superconductors associated with the superconducting transition. Theoretical positron density and positron-electron overlap distributions are calculated to support this interpretation.",

author = "Y. Lou and Yen, {H. L.} and Wrobel, {J. M.} and H. Zhang and Jean, {Y. C.} and G. Saito and Huang, {Z. J.} and Chu, {C. W.}",

year = "1994",

doi = "10.1103/PhysRevB.49.12255",

language = "English",

volume = "49",

pages = "12255--12258",

journal = "Physical Review B",

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TY - JOUR

T1 - Local-charge-density transfer and organic superconductivity

T2 - A positron study

AU - Lou, Y.

AU - Yen, H. L.

AU - Wrobel, J. M.

AU - Zhang, H.

AU - Jean, Y. C.

AU - Saito, G.

AU - Huang, Z. J.

AU - Chu, C. W.

PY - 1994

Y1 - 1994

N2 - The temperature dependence between 4 and 294 K of the positron lifetime is measured in the organic superconductor -(BEDT-TTF)2Cu(NCS)2. The lifetime decreases rapidly with temperature from 350 to 343 ps below Tc, and increases monotonically above Tc to 372 ps. These experimental results are interpreted in terms of a transfer in the local charge density of organic superconductors associated with the superconducting transition. Theoretical positron density and positron-electron overlap distributions are calculated to support this interpretation.

AB - The temperature dependence between 4 and 294 K of the positron lifetime is measured in the organic superconductor -(BEDT-TTF)2Cu(NCS)2. The lifetime decreases rapidly with temperature from 350 to 343 ps below Tc, and increases monotonically above Tc to 372 ps. These experimental results are interpreted in terms of a transfer in the local charge density of organic superconductors associated with the superconducting transition. Theoretical positron density and positron-electron overlap distributions are calculated to support this interpretation.

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DO - 10.1103/PhysRevB.49.12255

M3 - Article

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VL - 49

SP - 12255

EP - 12258

JO - Physical Review B

JF - Physical Review B

IS - 17

ER -

Local-charge-density transfer and organic superconductivity: A positron study

Abstract

All Science Journal Classification (ASJC) codes

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