Study of Resistive Superconducting Transition of Thallium Based Superconductors

W. M. Woch; R. Zalecki; M. Chrobak; Andrzej Kolodziejczyk; Gerhard Gritzner

doi:10.12693/APhysPolA.121.789

Study of Resistive Superconducting Transition of Thallium Based Superconductors

W. M. Woch (Editor), R. Zalecki, M. Chrobak, Andrzej Kolodziejczyk, Gerhard Gritzner

Institute of Chemical Technology of Inorganic Materials

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

Abstract

A width and shape of resistive transition as well as thermal fluctuations of the thallium based superconductors were analyzed theoretically. The applied magnetic field widens the resistive transition according to the following formula: ΔT = CHm + ΔT0. The exponent m fluctuates around 2/3 and depends on vortex structure and strength of the pinning force. The shape of the resistive transition was fitted by two models: the first one based on Ambegaokar-Halperin theory and the other one based on Anderson-Kim theory expressed by the exponential formula. Critical fluctuations were analyzed on the basis of magnetoresistance measurements results. The critical exponents have been calculated above the critical temperature Tc as well as for temperatures close to the zero resistance critical temperature. PACS numbers: 74.72-h, 74.40n, 74.20.De, 74.25.Ha

Original language	English
Pages (from-to)	789-795
Number of pages	7
Journal	Acta Physica Polonica A
Volume	121
Issue number	4
DOIs	https://doi.org/10.12693/APhysPolA.121.789
Publication status	Published - Apr 2012

Fields of science

204001 Inorganic chemical technology

JKU Focus areas

Engineering and Natural Sciences (in general)

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title = "Study of Resistive Superconducting Transition of Thallium Based Superconductors",

abstract = "A width and shape of resistive transition as well as thermal fluctuations of the thallium based superconductors were analyzed theoretically. The applied magnetic field widens the resistive transition according to the following formula: ΔT = CHm + ΔT0. The exponent m fluctuates around 2/3 and depends on vortex structure and strength of the pinning force. The shape of the resistive transition was fitted by two models: the first one based on Ambegaokar-Halperin theory and the other one based on Anderson-Kim theory expressed by the exponential formula. Critical fluctuations were analyzed on the basis of magnetoresistance measurements results. The critical exponents have been calculated above the critical temperature Tc as well as for temperatures close to the zero resistance critical temperature. PACS numbers: 74.72-h, 74.40n, 74.20.De, 74.25.Ha",

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AU - Zalecki, R.

AU - Chrobak, M.

AU - Kolodziejczyk, Andrzej

AU - Gritzner, Gerhard

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N2 - A width and shape of resistive transition as well as thermal fluctuations of the thallium based superconductors were analyzed theoretically. The applied magnetic field widens the resistive transition according to the following formula: ΔT = CHm + ΔT0. The exponent m fluctuates around 2/3 and depends on vortex structure and strength of the pinning force. The shape of the resistive transition was fitted by two models: the first one based on Ambegaokar-Halperin theory and the other one based on Anderson-Kim theory expressed by the exponential formula. Critical fluctuations were analyzed on the basis of magnetoresistance measurements results. The critical exponents have been calculated above the critical temperature Tc as well as for temperatures close to the zero resistance critical temperature. PACS numbers: 74.72-h, 74.40n, 74.20.De, 74.25.Ha

AB - A width and shape of resistive transition as well as thermal fluctuations of the thallium based superconductors were analyzed theoretically. The applied magnetic field widens the resistive transition according to the following formula: ΔT = CHm + ΔT0. The exponent m fluctuates around 2/3 and depends on vortex structure and strength of the pinning force. The shape of the resistive transition was fitted by two models: the first one based on Ambegaokar-Halperin theory and the other one based on Anderson-Kim theory expressed by the exponential formula. Critical fluctuations were analyzed on the basis of magnetoresistance measurements results. The critical exponents have been calculated above the critical temperature Tc as well as for temperatures close to the zero resistance critical temperature. PACS numbers: 74.72-h, 74.40n, 74.20.De, 74.25.Ha

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DO - 10.12693/APhysPolA.121.789

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JO - Acta Physica Polonica A

JF - Acta Physica Polonica A

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ER -

Study of Resistive Superconducting Transition of Thallium Based Superconductors

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