  We report the detailed study of structural micro-structuraland high magnetic
field magneto transport propertiesof Bi2Se3single crystal. Bi2Se3 single
crystal is grown through conventional solid-state reaction route via the
self-flux method. Rietveld analysis on Powder X-ray Diffraction showed that the
studied Bi2Se3 crystal is crystallized in single-phase without any impurity.
The surface morphology analyzed through Scanning Electron Microscopy study
which shows that as-grown single crystal exhibit layered type structure and the
quantitative weight of the atomic constituents (Bi and Se) are found to be
closeto the stoichiometric amount in energy-dispersive X-ray spectroscopy
analysis. Low temperature (2.5K) magneto-resistance (MR) exhibited a v-type
cusp around origin at lower magnetic field, which is the sign of weak
anti-localization effect. Further, Bi2Se3 single crystal magneto conductivity
data is fitted by well-known HLN equation in different magnetic field range of
2Tesla, 4Tesla and 6Tesla and the resultant found that the conduction mechanism
of Bi2Se3 is dominated by WAL state.
