Unconventional resistive transitions in the extreme type-II superconductor Tl2Mo6Se6

A. Petrović; Y. Fasano; R. Lortz; M. Decroux; M. Potel; R. Chevrel; Fischer

doi:10.1016/j.physc.2007.03.380

Unconventional resistive transitions in the extreme type-II superconductor Tl₂Mo₆Se₆

A. Petrović^*, Y. Fasano, R. Lortz, M. Decroux, M. Potel, R. Chevrel, Fischer

^*Corresponding author for this work

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

12 Citations (Scopus)

Abstract

A study of the resistive transition into the superconducting state of the quasi-1D superconductor Tl₂Mo₆Se₆ (T_c = 5 K) has revealed a broadening effect under applied magnetic field similar to that seen in the high-T_c cuprates. Using anisotropic Ginzburg-Landau theory we calculate a Ginzburg number G_i ≈ 1.8 × 10^-5, corresponding to a critical region of width ∼0.09 mK, which is ∼18 000 times smaller than the measured ΔT_c2. This proves that fluctuations of the order parameter are not the predominant factor responsible for the broadening of the transition and suggests the possible absence of a macroscopic phase coherence over a wide region of the vortex phase diagram.

Original language	English
Pages (from-to)	702-703
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	460-462 I
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physc.2007.03.380
Publication status	Published - 1 Sept 2007
Externally published	Yes

Keywords

Superconducting fluctuations
TlMoSe

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10.1016/j.physc.2007.03.380

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title = "Unconventional resistive transitions in the extreme type-II superconductor Tl2Mo6Se6 ",

abstract = "A study of the resistive transition into the superconducting state of the quasi-1D superconductor Tl2Mo6Se6 (Tc = 5 K) has revealed a broadening effect under applied magnetic field similar to that seen in the high-Tc cuprates. Using anisotropic Ginzburg-Landau theory we calculate a Ginzburg number Gi ≈ 1.8 × 10-5, corresponding to a critical region of width ∼0.09 mK, which is ∼18 000 times smaller than the measured ΔTc2. This proves that fluctuations of the order parameter are not the predominant factor responsible for the broadening of the transition and suggests the possible absence of a macroscopic phase coherence over a wide region of the vortex phase diagram.",

keywords = "Superconducting fluctuations, TlMoSe",

author = "A. Petrovi{\'c} and Y. Fasano and R. Lortz and M. Decroux and M. Potel and R. Chevrel and Fischer",

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doi = "10.1016/j.physc.2007.03.380",

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T1 - Unconventional resistive transitions in the extreme type-II superconductor Tl2Mo6Se6

AU - Petrović, A.

AU - Fasano, Y.

AU - Lortz, R.

AU - Decroux, M.

AU - Potel, M.

AU - Chevrel, R.

AU - Fischer,

PY - 2007/9/1

Y1 - 2007/9/1

N2 - A study of the resistive transition into the superconducting state of the quasi-1D superconductor Tl2Mo6Se6 (Tc = 5 K) has revealed a broadening effect under applied magnetic field similar to that seen in the high-Tc cuprates. Using anisotropic Ginzburg-Landau theory we calculate a Ginzburg number Gi ≈ 1.8 × 10-5, corresponding to a critical region of width ∼0.09 mK, which is ∼18 000 times smaller than the measured ΔTc2. This proves that fluctuations of the order parameter are not the predominant factor responsible for the broadening of the transition and suggests the possible absence of a macroscopic phase coherence over a wide region of the vortex phase diagram.

AB - A study of the resistive transition into the superconducting state of the quasi-1D superconductor Tl2Mo6Se6 (Tc = 5 K) has revealed a broadening effect under applied magnetic field similar to that seen in the high-Tc cuprates. Using anisotropic Ginzburg-Landau theory we calculate a Ginzburg number Gi ≈ 1.8 × 10-5, corresponding to a critical region of width ∼0.09 mK, which is ∼18 000 times smaller than the measured ΔTc2. This proves that fluctuations of the order parameter are not the predominant factor responsible for the broadening of the transition and suggests the possible absence of a macroscopic phase coherence over a wide region of the vortex phase diagram.

KW - Superconducting fluctuations

KW - TlMoSe

UR - https://www.webofscience.com/wos/woscc/full-record/WOS:000249870500259

UR - https://openalex.org/W1965476135

UR - https://www.scopus.com/pages/publications/34548153780

U2 - 10.1016/j.physc.2007.03.380

DO - 10.1016/j.physc.2007.03.380

M3 - Journal Article

SN - 0921-4534

VL - 460-462 I

SP - 702

EP - 703

JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

IS - SPEC. ISS.

ER -

Unconventional resistive transitions in the extreme type-II superconductor Tl₂Mo₆Se₆

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Keywords

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