TY - JOUR
T1 - Anomalous magnetization in single-crystal Tl2Ba2CuO6
T2 - Evidence of dimensional crossover
AU - Zuo, F.
AU - Khizroev, S.
AU - Alexandrakis, G. C.
AU - Kopylov, V. N.
PY - 1995
Y1 - 1995
N2 - Magnetization as a function of field parallel to the c axis shows an anomalous secondary peak for a single-crystal Tl2Ba2CuO6. The peak disappears above a crossover temperature Tcr, which is correlated with a crossover in the irreversibility line Hrev(T). For TTcr, Hrev(T)(1-T/Tc)n with n=3/2; for T<Tcr, Hrev(T) increases with 1/T exponentially, an indication of melting of two-dimensional (2D) vortices. Combined with magnetic-relaxation measurements at T<Tcr, we suggest the anomalous magnetization in this system is due to dimensional crossover from 3D to 2D vortex structure.
AB - Magnetization as a function of field parallel to the c axis shows an anomalous secondary peak for a single-crystal Tl2Ba2CuO6. The peak disappears above a crossover temperature Tcr, which is correlated with a crossover in the irreversibility line Hrev(T). For TTcr, Hrev(T)(1-T/Tc)n with n=3/2; for T<Tcr, Hrev(T) increases with 1/T exponentially, an indication of melting of two-dimensional (2D) vortices. Combined with magnetic-relaxation measurements at T<Tcr, we suggest the anomalous magnetization in this system is due to dimensional crossover from 3D to 2D vortex structure.
UR - http://www.scopus.com/inward/record.url?scp=0000790496&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0000790496&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.52.R755
DO - 10.1103/PhysRevB.52.R755
M3 - Article
AN - SCOPUS:0000790496
VL - 52
SP - R755-R758
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 2469-9950
IS - 2
ER -