title: Multiband superconductivity in Ta4Pd3Te16 with anisotropic gap structure.
abstract: We carried out measurements of the magnetoresistance, magnetic susceptibility and specific heat on crystals of the low-dimensional transition metal telluride Ta4Pd3Te16. Our results indicate that Ta4Pd3Te16 is an anisotropic type-II superconductor in the clean limit with the extracted Ginzburg-Landau parameter KGL = 84. The upper critical field Hc2(T) shows an anomalous temperature dependence at low temperatures and the anisotropy of Hc2(T) is strongly T-dependent, both of which indicate a multiband scenario. The electronic specific heat Cel(T) can be consistently described by a two-gap (s   +   d waves) model from the base temperature T/Tc ~ 0.12 up to Tc. Our results suggest nodal and multiband superconductivity in Ta4Pd3Te16.
authors.affiliation: Department of Physics, Zhejiang University of Science and Technology, Hangzhou 310023, People's Republic of China.
authors.forename: Wen-He
authors.initials: WH
authors.lastname: Jiao
authors.forename: Yi
authors.initials: Y
authors.lastname: Liu
authors.forename: Yu-Ke
authors.initials: YK
authors.lastname: Li
authors.forename: Xiao-Feng
authors.initials: XF
authors.lastname: Xu
authors.forename: Jin-Ke
authors.initials: JK
authors.lastname: Bao
authors.forename: Chun-Mu
authors.initials: CM
authors.lastname: Feng
authors.forename: S Y
authors.initials: SY
authors.lastname: Li
authors.forename: Zhu-An
authors.initials: ZA
authors.lastname: Xu
authors.forename: Guang-Han
authors.initials: GH
authors.lastname: Cao