Magnetic behavior of BSCCO and R123 in the vortex liquid state

N. Chikumoto; M. Murakami

doi:10.1016/S0921-4534(01)00344-6

Magnetic behavior of BSCCO and R123 in the vortex liquid state

N. Chikumoto, M. Murakami

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

1 Citation (Scopus)

Abstract

Detailed measurements of the temperature dependence of the magnetization of BSCCO and R123 has been carried out with a SQUID magnetometer in applied magnetic field (H∥c) ranging between 1 mT and 7 T. In both systems, we observed an anomaly, namely a clear step, just above the irreversibility temperature (T_irr) in a reversible magnetization curve. It is also found that this anomalous second step is only observed in a high magnetic field region. Comparative study of both systems suggested that the step is likely to be caused by different origins.

Original language	English
Pages (from-to)	534-536
Number of pages	3
Journal	Physica C: Superconductivity and its applications
Volume	357-360
Issue number	SUPPL. 2
DOIs	https://doi.org/10.1016/S0921-4534(01)00344-6
Publication status	Published - 2001 Aug 1
Externally published	Yes

Keywords

BSCCO
Phase transition
R123
Second phase

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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AU - Murakami, M.

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AB - Detailed measurements of the temperature dependence of the magnetization of BSCCO and R123 has been carried out with a SQUID magnetometer in applied magnetic field (H∥c) ranging between 1 mT and 7 T. In both systems, we observed an anomaly, namely a clear step, just above the irreversibility temperature (Tirr) in a reversible magnetization curve. It is also found that this anomalous second step is only observed in a high magnetic field region. Comparative study of both systems suggested that the step is likely to be caused by different origins.

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KW - Second phase

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