Study of Resistive Superconducting Transition of Thallium Based Superconductors

Woch, W. M.; Zalecki, R.; Chrobak, M.; Kołodziejczyk, Andrzej; Gritzner, G.

doi:10.12693/aphyspola.121.789

Cited by 3 publications

(4 citation statements)

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“…Some authors try to explain this phenomenon with the vortex structure and flux motion mechanism [12,13]. One can expect that the resistive transition from the normal to the superconducting state of HTS hides many interesting physical phenomena [14] and this is possibly a key to understand the mechanism of a superconductivity of these materials. From this point of view the attention is paid to the width of the resistive transition that is usually defined as: ∆T = T 90% −T 10% and its dependence on the applied magnetic field.…”

Section: Resultsmentioning

confidence: 99%

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Magnetoresistance Study of c-Axis Oriented YBCO Thin Film

et al. 2017

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The c-axis orientation YBa2Cu3O δ thin film was prepared directly on MgO substrate by the pulse laser deposition. The thickness of the film is 170 nm. The superconducting critical temperature is T c50% = 87.5 K and the width of superconducting transition is ∆T = 1.8 K. The temperature dependences of magnetoresistance were measured up to 90 kOe. The widths of the transition to the superconducting state versus applied magnetic field were derived and they were fitted using the formula: ∆T = CH m + ∆T0. The irreversibility fields as a function of temperature were obtained and fitted by the de Almeida and Thouless-like equation: Hirr = Hirr0(1−T /Tc0) n . The irreversibility field at the liquid nitrogen temperature was calculated and it is Hirr = 43.8 kOe when the applied magnetic field is parallel to the c-axis.

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Section: Resultsmentioning

confidence: 99%

“…The width of the resistive transition starts from ∆T 0 = 1.8 K at the zero applied magnetic field and reaches ∆T = 12.2 K at 90 kOe. The width of the resistive transition can generally be described in the following form [14]:…”

Section: Resultsmentioning

confidence: 99%

Magnetoresistance Study of c-Axis Oriented YBCO Thin Film

et al. 2017

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“…Some authors link this phenomenon with the vortex structure and flux motion mechanism [14,15]. On the other hand, the resistive transition from the normal to the superconducting state of HTS hides many interesting physical phenomena [16] and is possibly a key to understand the mechanism of a superconductivity of these materials. From this point of view, the attention is paid to the width of the resistive transition that is usually defined as T = T 90 % − T 10 % and its dependence on the applied magnetic field.…”

Section: Resultsmentioning

confidence: 99%

“…One can assume [16] that the temperature at which the whole sample stayed superconducting (resistance equal to zero) at the given magnetic field separates the reversibility from the irreversibility region. The data H irr (T ) were extracted from the magnetoresistance measurements and they are shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

Magnetoresistance and Irreversibility Fields of Bismuth-Based 1G Tape

Woch¹,

Chrobak²,

Kowalik³

et al. 2016

J Supercond Nov Magn

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The magnetoresistance and irreversibility fields of commercial bismuth-based 1G tape were studied on the basis of the temperature dependencies of the magnetoresistance at the two relative orientations of magnetic field and superconductor plane. The critical temperatures of this tape are the following: T c50 % = 110.3 K and T c0 = 109.9 K, and the width of superconducting transition is T = 0.5 K. The widths of the transition to the superconducting state versus applied magnetic fields were derived for both orientations. The experimental data were fitted using the formula T = CH m + T 0 . The irreversibility field values were obtained and successfully fitted as a function of temperature. At 77 K, they were found to amount to H irr = 72.8 kOe and H irr = 5.5 kOe for the parallel and perpendicular directions, respectively.

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