  We study the structural and bulk superconducting properties of self flux
grown PdBi2Te3 single crystal. Phase purity of as grown crystal is confirmed by
Rietveld refinement of gently crushed powder XRD of the same. PdBi2Te3
crystallizes in rhombohedral structure with R-3 m space group along with small
impurity of Bi. Scanning Electron Microscopy (SEM) images showed layered
structure and the elemental analysis by energy dispersive X Ray analysis (EDAX)
done on same confirmed the stoichiometry to be near to PdBi2Te3. Characteristic
vibrational modes viz. A11g, Eg2, A21g are clearly observed in Raman spectrum,
and are slightly shifted from that as in case of Bi2Te3. Bulk superconductivity
is confirmed by FC and ZFC magnetization measurements (M-T) exhibiting
diamagnetic transition with Tconset at around 6K. M-H plots at different
temperatures of 2K, 2.5K, 3K, 3.5K, 4K, 4.5K, 5K and 6K showed clear opening of
the loop right up to 6K. Both M-T and M-H clearly establish the appearance of
bulk type II superconductivity below 6K in studied PdBi2Te3. The lower critical
field Hc1 and upper critical field Hc2 are at 180Oe at 4800Oe respectively at
2K for as grown PdBi2Te3 crystal. Other critical parameters of
superconductivity such as coherence length, penetration depth and kappa
parameter are also calculated.
