@article {37052,
	title = {Paramagnetic Meissner Effect and AC Magnetization in Roll-Bonded Cu-Nb Layered Composites},
	journal = {JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM},
	volume = {23},
	year = {2010},
	month = {2010},
	pages = {1533 - 1541},
	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.},
	isbn = {1557-1939},
	author = {Sandim, M.J.R. and Stamopoulos, D. and Ghivelder, L. and Lim, S.C.V. and Rollett, A.D.}
}
