Search for superconductivity in ternary chalcogenides Bi$_{2} $Rh$ _{3}$S$ _{2}$
ORAL
Abstract
Recently Sakamoto and co-workers reported$[1]$ that parkerite-type Bi$_{2} $Rh$ _{3}$Se$ _{2}$ is a new superconducting ($\sim$0.7\,K) compound with the charge density wave ($\sim$250\,K) behavior. In this work we present the physical properties of iso-structural compound$[2]$ Bi$_{2} $Rh$ _{3}$S$ _{2}$. For the first time we have been able to grow single crystals of Bi$_{2} $Rh$ _{3}$S$ _{2}$ and separate them from excess melt via high temperature decanting. We will present the detailed characterization of Bi$_{2} $Rh$ _{3}$S$ _{2}$ and a new, closely related phase by mean of resistivity, magnetization, specific heat and single crystals diffraction measurements.\\[4pt] [1] T. Sakamoto, M. Wakeshima, Y. Hinatsu, and K. Matsuhira, Phys. Rev. B \textbf{75}, 060503 (2007) \\[0pt] [2] S. Natarajan, G. Rao, R. Baskaran, and T. Radhakrishnan, Journal of the Less Common Metals \textbf{138}, 215 (1988)
*This work is supported by the US DOE, Basic Energy Sciences under Contract No. DE-AC02-07CH11358.
–