TY - JOUR
T1 - Magnetic irreversibility in (Hg1-xRex)Ba2Ca2Cu3O 8+δ
T2 - Effects of neutron irradiation
AU - Altshuler, E.
AU - Chu, C. W.
AU - Orlando, M. T.D.
AU - Sin, A.
AU - Batista-Leyva, A. J.
AU - Buntar, V.
AU - Weber, H. W.
N1 - Funding Information:
E. Altshuler and A.J. Batista-Leyva acknowledges the University “Alma Mater” grants programme, as well as TWAS research grant no. 95–124 RG/PHYS/LA. A. Sin thanks for the cooperation with the Department of Chemistry, CNRS.
Copyright:
Copyright 2008 Elsevier B.V., All rights reserved.
PY - 2002/7/1
Y1 - 2002/7/1
N2 - We studied the intragrain magnetic hysteresis of the superconductor (Hg1-xRex)Ba2Ca2Cu3O 8+δ (x=0.10, 0.18 and 0.25) close to Tc. From the magnetization curves we determined the temperature dependence of the irreversibility field (Hirr(T)), and the field dependence of the magnetization curve width (ΔM(H)). After irradiation to a fluence of 2 × 1021m-2 (E>0.1 MeV), the magnetization curves moderately increase their symmetry, and sizeable enhancements of Hirr(T) and ΔM(H) are observed. Although the substitution x=0.18 shows the best pinning properties before irradiation, x=0.10 matches - Or even surpasses - Them afterwards. This suggests that, within our temperature and field window, neutron irradiation plays a far more important role than Re-substitution in enhancing the irreversible behavior in the Hg-1223 system.
AB - We studied the intragrain magnetic hysteresis of the superconductor (Hg1-xRex)Ba2Ca2Cu3O 8+δ (x=0.10, 0.18 and 0.25) close to Tc. From the magnetization curves we determined the temperature dependence of the irreversibility field (Hirr(T)), and the field dependence of the magnetization curve width (ΔM(H)). After irradiation to a fluence of 2 × 1021m-2 (E>0.1 MeV), the magnetization curves moderately increase their symmetry, and sizeable enhancements of Hirr(T) and ΔM(H) are observed. Although the substitution x=0.18 shows the best pinning properties before irradiation, x=0.10 matches - Or even surpasses - Them afterwards. This suggests that, within our temperature and field window, neutron irradiation plays a far more important role than Re-substitution in enhancing the irreversible behavior in the Hg-1223 system.
UR - http://www.scopus.com/inward/record.url?scp=0036643865&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036643865&partnerID=8YFLogxK
U2 - 10.1016/S0921-4534(01)01088-7
DO - 10.1016/S0921-4534(01)01088-7
M3 - Article
AN - SCOPUS:0036643865
SN - 0921-4534
VL - 371
SP - 224
EP - 228
JO - Physica C: Superconductivity and its applications
JF - Physica C: Superconductivity and its applications
IS - 3
ER -