Magnetization jumps and irreversibility in Bi 2 Sr 2 CaCu 2 O 8

DE Farrell; E Johnston-Halperin; L. Klein; P Fournier; A Kapitulnik; EM Forgan; AL Rae; TW Li; ML Trawick; R Sasik; JC Garland

Magnetization jumps and irreversibility in Bi 2 Sr 2 CaCu 2 O 8

DE Farrell, E Johnston-Halperin, L. Klein, P Fournier, A Kapitulnik, EM Forgan, AL Rae, TW Li, ML Trawick, R Sasik, JC Garland

Department of Physics

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

Abstract

Using torque magnetometry, the bulk magnetization of single-crystal Bi2Sr2CaCu2O8 has been investigated for temperatures close to the superconducting transition temperature. The results establish that the irreversibility field coincides with the field at which the vortex solid melts. It is also reported that the magnitude of the magnetization jump that can appear at the melting transformation is strongly correlated with the irreversibility displayed by the vortex solid. The accepted interpretation of the magnetization jumps observed in both local and bulk magnetic experiments on high-Tc superconductors is that they provide evidence for an entropy jump at the melting transformation. The results reported here suggest that the magnetization jumps may have an artifactual origin

Original language	American English
Journal	Physical Review B (Condensed Matter and Materials Physics)
Volume	53
Issue number	17
State	Published - 1996

Cite this

@article{650f1185548f4a76a43d13a4fb938848,

title = "Magnetization jumps and irreversibility in Bi 2 Sr 2 CaCu 2 O 8",

abstract = "Using torque magnetometry, the bulk magnetization of single-crystal Bi2Sr2CaCu2O8 has been investigated for temperatures close to the superconducting transition temperature. The results establish that the irreversibility field coincides with the field at which the vortex solid melts. It is also reported that the magnitude of the magnetization jump that can appear at the melting transformation is strongly correlated with the irreversibility displayed by the vortex solid. The accepted interpretation of the magnetization jumps observed in both local and bulk magnetic experiments on high-Tc superconductors is that they provide evidence for an entropy jump at the melting transformation. The results reported here suggest that the magnetization jumps may have an artifactual origin",

author = "DE Farrell and E Johnston-Halperin and L. Klein and P Fournier and A Kapitulnik and EM Forgan and AL Rae and TW Li and ML Trawick and R Sasik and JC Garland",

year = "1996",

language = "American English",

volume = "53",

journal = "Physical Review B (Condensed Matter and Materials Physics)",

number = "17",

}

TY - JOUR

T1 - Magnetization jumps and irreversibility in Bi 2 Sr 2 CaCu 2 O 8

AU - Farrell, DE

AU - Johnston-Halperin, E

AU - Klein, L.

AU - Fournier, P

AU - Kapitulnik, A

AU - Forgan, EM

AU - Rae, AL

AU - Li, TW

AU - Trawick, ML

AU - Sasik, R

AU - Garland, JC

PY - 1996

Y1 - 1996

N2 - Using torque magnetometry, the bulk magnetization of single-crystal Bi2Sr2CaCu2O8 has been investigated for temperatures close to the superconducting transition temperature. The results establish that the irreversibility field coincides with the field at which the vortex solid melts. It is also reported that the magnitude of the magnetization jump that can appear at the melting transformation is strongly correlated with the irreversibility displayed by the vortex solid. The accepted interpretation of the magnetization jumps observed in both local and bulk magnetic experiments on high-Tc superconductors is that they provide evidence for an entropy jump at the melting transformation. The results reported here suggest that the magnetization jumps may have an artifactual origin

AB - Using torque magnetometry, the bulk magnetization of single-crystal Bi2Sr2CaCu2O8 has been investigated for temperatures close to the superconducting transition temperature. The results establish that the irreversibility field coincides with the field at which the vortex solid melts. It is also reported that the magnitude of the magnetization jump that can appear at the melting transformation is strongly correlated with the irreversibility displayed by the vortex solid. The accepted interpretation of the magnetization jumps observed in both local and bulk magnetic experiments on high-Tc superconductors is that they provide evidence for an entropy jump at the melting transformation. The results reported here suggest that the magnetization jumps may have an artifactual origin

M3 - Article

VL - 53

JO - Physical Review B (Condensed Matter and Materials Physics)

JF - Physical Review B (Condensed Matter and Materials Physics)

IS - 17

ER -

Magnetization jumps and irreversibility in Bi 2 Sr 2 CaCu 2 O 8

Abstract

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