Superconducting fluctuation effect on normal state resistance and magnetoresistance of YBCO single crystals

Valery Dikovsky; Kamil Zhdanov; Anatoly Shelkovnikov

doi:10.1007/BF02562803

Superconducting fluctuation effect on normal state resistance and magnetoresistance of YBCO single crystals

Valery Dikovsky, Kamil Zhdanov, Anatoly Shelkovnikov

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Abstract

Contributions of superconducting fluctuations and regular part to the temperature dependence of normal state resistance (R_a,) has been studied on two YBCO single crystals with close oxygen content. Analysis of the data using conventional models of "fluctuation" conductivity has shown that the coherence length ε_o and phase relaxation time f_o take unphysical values if the upper boundary of the temperature interval increases up to 1.5T_o. The fitting becomes rather good if we take into account the contribution to the regular part of R_a, which is due to electron-spin interaction.

Original language	English
Pages (from-to)	1377-1378
Number of pages	2
Journal	Czechoslovak Journal of Physics
Volume	46
Issue number	SUPPL. 3
DOIs	https://doi.org/10.1007/BF02562803
State	Published - 1 Dec 1996
Externally published	Yes

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abstract = "Contributions of superconducting fluctuations and regular part to the temperature dependence of normal state resistance (Ra,) has been studied on two YBCO single crystals with close oxygen content. Analysis of the data using conventional models of {"}fluctuation{"} conductivity has shown that the coherence length εo and phase relaxation time fo take unphysical values if the upper boundary of the temperature interval increases up to 1.5To. The fitting becomes rather good if we take into account the contribution to the regular part of Ra, which is due to electron-spin interaction.",

author = "Valery Dikovsky and Kamil Zhdanov and Anatoly Shelkovnikov",

year = "1996",

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doi = "10.1007/BF02562803",

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AU - Dikovsky, Valery

AU - Zhdanov, Kamil

AU - Shelkovnikov, Anatoly

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Y1 - 1996/12/1

N2 - Contributions of superconducting fluctuations and regular part to the temperature dependence of normal state resistance (Ra,) has been studied on two YBCO single crystals with close oxygen content. Analysis of the data using conventional models of "fluctuation" conductivity has shown that the coherence length εo and phase relaxation time fo take unphysical values if the upper boundary of the temperature interval increases up to 1.5To. The fitting becomes rather good if we take into account the contribution to the regular part of Ra, which is due to electron-spin interaction.

AB - Contributions of superconducting fluctuations and regular part to the temperature dependence of normal state resistance (Ra,) has been studied on two YBCO single crystals with close oxygen content. Analysis of the data using conventional models of "fluctuation" conductivity has shown that the coherence length εo and phase relaxation time fo take unphysical values if the upper boundary of the temperature interval increases up to 1.5To. The fitting becomes rather good if we take into account the contribution to the regular part of Ra, which is due to electron-spin interaction.

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DO - 10.1007/BF02562803

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AN - SCOPUS:77958109203

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JO - Czechoslovak Journal of Physics

JF - Czechoslovak Journal of Physics

IS - SUPPL. 3

ER -

Superconducting fluctuation effect on normal state resistance and magnetoresistance of YBCO single crystals

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