Effect of twin planes in the magnetization hysteresis loops of single crystals

M. Jirsa; M. Koblischka; T. Higuchi; M. Murakami

doi:10.1103/PhysRevB.58.R14771

Effect of twin planes in the magnetization hysteresis loops of single crystals

M. Jirsa, M. Koblischka, T. Higuchi, M. Murakami

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

29 Citations (Scopus)

Abstract

The angular dependence of the critical currents is investigated in a moderately twinned (Formula presented) (NdBCO) single crystal in the temperature range (Formula presented) In intermediate fields around the fishtail peak a reduction of critical current density due to twin structure is observed up to 90 K. This effect implies that vortices retain their three-dimensional character practically up to (Formula presented) The effect of twin planes disappeared at external fields declined more than (Formula presented) from the (Formula presented) axis (twin planes). In this case, the hysteresis loops exhibited a clear fishtail shape. The intermediate peak observed previously in NdBCO single crystal at (Formula presented) is identified with the low-field limit of the twin plane activity.

Original language	English
Pages (from-to)	R14771-R14774
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	58
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevB.58.R14771
Publication status	Published - 1998 Jan 1
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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T1 - Effect of twin planes in the magnetization hysteresis loops of single crystals

AU - Jirsa, M.

AU - Koblischka, M.

AU - Higuchi, T.

AU - Murakami, M.

PY - 1998/1/1

Y1 - 1998/1/1

N2 - The angular dependence of the critical currents is investigated in a moderately twinned (Formula presented) (NdBCO) single crystal in the temperature range (Formula presented) In intermediate fields around the fishtail peak a reduction of critical current density due to twin structure is observed up to 90 K. This effect implies that vortices retain their three-dimensional character practically up to (Formula presented) The effect of twin planes disappeared at external fields declined more than (Formula presented) from the (Formula presented) axis (twin planes). In this case, the hysteresis loops exhibited a clear fishtail shape. The intermediate peak observed previously in NdBCO single crystal at (Formula presented) is identified with the low-field limit of the twin plane activity.

AB - The angular dependence of the critical currents is investigated in a moderately twinned (Formula presented) (NdBCO) single crystal in the temperature range (Formula presented) In intermediate fields around the fishtail peak a reduction of critical current density due to twin structure is observed up to 90 K. This effect implies that vortices retain their three-dimensional character practically up to (Formula presented) The effect of twin planes disappeared at external fields declined more than (Formula presented) from the (Formula presented) axis (twin planes). In this case, the hysteresis loops exhibited a clear fishtail shape. The intermediate peak observed previously in NdBCO single crystal at (Formula presented) is identified with the low-field limit of the twin plane activity.

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Effect of twin planes in the magnetization hysteresis loops of single crystals

Abstract

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