Dynamic transition in current-driven disordered flux-line lattice in single-crystal of Bi-2212

Ammor, L.; Ruyter, A.

doi:10.1016/j.physc.2014.08.011

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2017

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“…(Bi-2212) superconductor [6][7][8][9][10][11][12][13][14]. Zeldov and co-workers using a Bi-2212 single crystal and local Hall magnetometer measurements, discovered a clear discontinuous change of the magnetization, attributed to the vortex lattice melting transition [15].…”

Section: Introductionmentioning

confidence: 99%

Crossover from paramagnetic to diamagnetic ac-susceptibility in Bi₂Sr₂CaCu₂O${}_{8+\delta }$ superconductor for ${\bf{H}}| | c \mbox{-} {\rm{axis}}$

Pissas¹,

Tamegai²

2017

Supercond. Sci. Technol.

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Ac-susceptibility measurements of the superconducting Bi2Sr2CaCu2O single crystal for -axis are presented. In low frequency measurements the first harmonic ac-susceptibility, , is real and independent of the amplitude of the ac-magnetic field (linear behavior) and positive, implying that it represents the slope of the magnetization curve as the temperature changes below Tc2. The positive ac-susceptibility before becoming negative, at low temperatures, forms a positive local maximum arising from the melting transition of the Abrikosov vortex lattice. For higher frequencies the response becomes diamagnetic due to the eddy currents. The signature of the discontinuous change of the magnetization, at the melting transition in higher frequency measurements, is a sharp shoulder near the complete screening. The presence of second harmonic susceptibility in the liquid regime implies nonlinear variation of the equilibrium magnetization.

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Section: Introductionmentioning

confidence: 99%

Crossover from paramagnetic to diamagnetic ac-susceptibility in Bi₂Sr₂CaCu₂O${}_{8+\delta }$ superconductor for ${\bf{H}}| | c \mbox{-} {\rm{axis}}$

Pissas¹,

Tamegai²

2017

Supercond. Sci. Technol.

View full text Add to dashboard Cite

show abstract

Dynamic transition in current-driven disordered flux-line lattice in single-crystal of Bi-2212

Cited by 1 publication

References 50 publications

Crossover from paramagnetic to diamagnetic ac-susceptibility in Bi₂Sr₂CaCu₂O${}_{8+\delta }$ superconductor for ${\bf{H}}| | c \mbox{-} {\rm{axis}}$

Crossover from paramagnetic to diamagnetic ac-susceptibility in Bi₂Sr₂CaCu₂O${}_{8+\delta }$ superconductor for ${\bf{H}}| | c \mbox{-} {\rm{axis}}$

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Dynamic transition in current-driven disordered flux-line lattice in single-crystal of Bi-2212

Cited by 1 publication

References 50 publications

Crossover from paramagnetic to diamagnetic ac-susceptibility in Bi2Sr2CaCu2O${}_{8+\delta }$ superconductor for ${\bf{H}}| | c \mbox{-} {\rm{axis}}$

Crossover from paramagnetic to diamagnetic ac-susceptibility in Bi2Sr2CaCu2O${}_{8+\delta }$ superconductor for ${\bf{H}}| | c \mbox{-} {\rm{axis}}$

Contact Info

Product

Resources

About

Crossover from paramagnetic to diamagnetic ac-susceptibility in Bi₂Sr₂CaCu₂O${}_{8+\delta }$ superconductor for ${\bf{H}}| | c \mbox{-} {\rm{axis}}$

Crossover from paramagnetic to diamagnetic ac-susceptibility in Bi₂Sr₂CaCu₂O${}_{8+\delta }$ superconductor for ${\bf{H}}| | c \mbox{-} {\rm{axis}}$