Paramagnetic meissner effect and AC magnetization in roll-bonded Cu-Nb layered composites

M. J R Sandim; D. Stamopoulos; L. Ghivelder; S. C V Lim; A. D. Rollett

doi:10.1007/s10948-010-0810-0

Paramagnetic meissner effect and AC magnetization in roll-bonded Cu-Nb layered composites

M. J R Sandim, D. Stamopoulos, L. Ghivelder, S. C V Lim, A. D. Rollett

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

8 Citations (Scopus)

Abstract

The paramagnetic Meissner effect (PME) is related to the appearance of a positive magnetization when a superconducting specimen is field cooled through its critical temperature. In this work we report on the PME and ac magnetization in roll-bonded Cu-Nb (RB/Cu-Nb) layered composites. We present typical DC magnetization loops obtained in the normal magnetic field configuration that show the PME. In addition, we present ac magnetization measurements that reveal a crossover behavior at a characteristic field value. We show evidence that such a crossover behavior, attributed to activation processes of vortices, is probably related to the disappearance of the PME in the RB/Cu-Nb layered composites.

Original language	English
Pages (from-to)	1533-1541
Number of pages	9
Journal	Journal of Superconductivity and Novel Magnetism
Volume	23
Issue number	8
DOIs	https://doi.org/10.1007/s10948-010-0810-0
Publication status	Published - Dec 2010
Externally published	Yes

Keywords

Ac magnetization
Cu-Nb
Layered composite
Paramagnetic Meissner effect

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10.1007/s10948-010-0810-0

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abstract = "The paramagnetic Meissner effect (PME) is related to the appearance of a positive magnetization when a superconducting specimen is field cooled through its critical temperature. In this work we report on the PME and ac magnetization in roll-bonded Cu-Nb (RB/Cu-Nb) layered composites. We present typical DC magnetization loops obtained in the normal magnetic field configuration that show the PME. In addition, we present ac magnetization measurements that reveal a crossover behavior at a characteristic field value. We show evidence that such a crossover behavior, attributed to activation processes of vortices, is probably related to the disappearance of the PME in the RB/Cu-Nb layered composites.",

keywords = "Ac magnetization, Cu-Nb, Layered composite, Paramagnetic Meissner effect",

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T1 - Paramagnetic meissner effect and AC magnetization in roll-bonded Cu-Nb layered composites

AU - Sandim, M. J R

AU - Stamopoulos, D.

AU - Ghivelder, L.

AU - Lim, S. C V

AU - Rollett, A. D.

PY - 2010/12

Y1 - 2010/12

N2 - The paramagnetic Meissner effect (PME) is related to the appearance of a positive magnetization when a superconducting specimen is field cooled through its critical temperature. In this work we report on the PME and ac magnetization in roll-bonded Cu-Nb (RB/Cu-Nb) layered composites. We present typical DC magnetization loops obtained in the normal magnetic field configuration that show the PME. In addition, we present ac magnetization measurements that reveal a crossover behavior at a characteristic field value. We show evidence that such a crossover behavior, attributed to activation processes of vortices, is probably related to the disappearance of the PME in the RB/Cu-Nb layered composites.

AB - The paramagnetic Meissner effect (PME) is related to the appearance of a positive magnetization when a superconducting specimen is field cooled through its critical temperature. In this work we report on the PME and ac magnetization in roll-bonded Cu-Nb (RB/Cu-Nb) layered composites. We present typical DC magnetization loops obtained in the normal magnetic field configuration that show the PME. In addition, we present ac magnetization measurements that reveal a crossover behavior at a characteristic field value. We show evidence that such a crossover behavior, attributed to activation processes of vortices, is probably related to the disappearance of the PME in the RB/Cu-Nb layered composites.

KW - Ac magnetization

KW - Cu-Nb

KW - Layered composite

KW - Paramagnetic Meissner effect

UR - https://www.scopus.com/pages/publications/78649629039

U2 - 10.1007/s10948-010-0810-0

DO - 10.1007/s10948-010-0810-0

M3 - Article

AN - SCOPUS:78649629039

SN - 1557-1939

VL - 23

SP - 1533

EP - 1541

JO - Journal of Superconductivity and Novel Magnetism

JF - Journal of Superconductivity and Novel Magnetism

IS - 8

ER -

Paramagnetic meissner effect and AC magnetization in roll-bonded Cu-Nb layered composites

Abstract

Keywords

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