% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Wang:15732,
author = {Wang, L.M. and Sou, U.C. and Yang, H.C.Ü and Chang, L.J.
and Cheng, C.M. and Tsuei, K.D. and Su, Y. and Wolf, Th. and
Adelmann, P.},
title = {{M}ixed-state {H}all effect and flux pinning in {B}a
({F}e1-x{C}ox) 2{A}s2 single crystals (x = 0.08 and 0.10)},
journal = {Physical review / B},
volume = {83},
number = {13},
issn = {1098-0121},
address = {College Park, Md.},
publisher = {APS},
reportid = {PreJuSER-15732},
pages = {134506},
year = {2011},
note = {The authors thank the National Science Council of Taiwan
for financial support under Grants No. NSC
98-2112-M-212-001-MY3 (L. M. W.), No. NSC 96-2739-M-213-001,
and No. NSC 96-2112-M-007-012 (L.J.C.). T. W. and P. A.
acknowledge financial support through the Deutsche
Forschungsgemeinschaft (SPP 1458).},
abstract = {Longitudinal and Hall resistivities, scaling behavior, and
magnetizations are examined to study the effect of flux
pinning in Ba(Fe1-xCox)(2)As-2 (BFCA) single crystals with x
= 0.08 and 0.01. Larger values of activation energy,
critical current density, and pinning force are obtained in
BFCA with x = 0.10, indicating relatively strong pinning.
The sign reversal of Hall resistivities is clearly observed
in BFCA with x = 0.10. The correlation between longitudinal
and Hall resistivities shows the scaling behavior of rho(xy)
proportional to (rho(xx))(beta) with exponents beta =
3.0-3.4 and 2.0+/-0.2 for BFCA crystals with x = 0.08 and
0.10, respectively. Furthermore, the normal-state Hall angle
is also observed to follow cot theta(H) = Lambda T-2 + C in
BFCA crystals, and is explained by the Anderson theory. The
relatively large C/Lambda value for BFCA with x = 0.10 also
implies a larger contribution of impurity scattering due to
more Co atoms, which may cause stronger pinning of flux
lines. The results are analyzed and coincide with theory,
including the pinning-induced backflow effect and plastic
flow mechanism in vortex dynamics.},
keywords = {J (WoSType)},
cin = {PGI-4 / JCNS (München) ; Jülich Centre for Neutron
Science JCNS (München) ; JCNS-FRM-II / JCNS-2},
ddc = {530},
cid = {I:(DE-Juel1)PGI-4-20110106 /
I:(DE-Juel1)JCNS-FRM-II-20110218 /
I:(DE-Juel1)JCNS-2-20110106},
pnm = {Grundlagen für zukünftige Informationstechnologien /
Großgeräte für die Forschung mit Photonen, Neutronen und
Ionen (PNI)},
pid = {G:(DE-Juel1)FUEK412 / G:(DE-Juel1)FUEK415},
experiment = {EXP:(DE-MLZ)NOSPEC-20140101},
shelfmark = {Physics, Condensed Matter},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000289228800008},
doi = {10.1103/PhysRevB.83.134506},
url = {https://juser.fz-juelich.de/record/15732},
}