TY - CONF KW - Thermoelectricity KW - Electrical conductivity of other crystalline inorganic semiconductors [A7280J] KW - Thermoelectric effects (semiconductors/insulators) [A7220P] KW - coordinate bonding KW - crystal structure KW - Crystal structure of specific inorganic compounds [A6160] KW - Diamagnetic materials KW - diamagnetic susceptibilities KW - Diamagnetism and paramagnetism in nonmetals [A7520C] KW - lattice constants KW - Magnetic susceptibility KW - Ru2Si3 KW - Ruthenium compounds KW - Semiconductor materials KW - single crystal KW - superstructure KW - tetragonal symmetry KW - X-ray diffraction AU - I. Ohsugi AU - T. Kojima AU - Cronin Vining AU - M. Sakata AU - I. Nishida AB -

X-ray diffraction photographic experiments and anisotropic magnetic susceptibility measurement were made to examine the crystal structure of a Ru2Si3 single crystal. The X-ray analysis revealed that the single crystal possesses a tetragonal symmetry. Some very weak X-ray diffraction spots suggest a superstructure with 4-times larger lattice constants than those of the conventional tetragonal lattice. It was found from the susceptibility measurement that the single crystal is diamagnetic at low temperatures ranging from 20 to 300 K, and that the susceptibilities are uni-axially anisotropic, which is consistent with the results of the X-ray diffraction experiments. It is concluded from the diamagnetic susceptibilities that coordinate bonding is established between Si and Ru atoms, which is consistent with the results of a previous magnetic susceptibility analysis of CrSi2. (11 References).

BT - Seventeenth International Conference on Thermoelectrics. Proceedings ICT98 (Cat. No.98TH8365). C1 - Seventeenth International Conference on Thermoelectrics. Proceedings ICT98. Nagoya, Japan. 24-28 May 1998. DA - 1998/// LA - eng N2 -

X-ray diffraction photographic experiments and anisotropic magnetic susceptibility measurement were made to examine the crystal structure of a Ru2Si3 single crystal. The X-ray analysis revealed that the single crystal possesses a tetragonal symmetry. Some very weak X-ray diffraction spots suggest a superstructure with 4-times larger lattice constants than those of the conventional tetragonal lattice. It was found from the susceptibility measurement that the single crystal is diamagnetic at low temperatures ranging from 20 to 300 K, and that the susceptibilities are uni-axially anisotropic, which is consistent with the results of the X-ray diffraction experiments. It is concluded from the diamagnetic susceptibilities that coordinate bonding is established between Si and Ru atoms, which is consistent with the results of a previous magnetic susceptibility analysis of CrSi2. (11 References).

PB - IEEE, Piscataway, NJ, USA PY - 1998 EP - 3 EP - 370+ T2 - Seventeenth International Conference on Thermoelectrics. Proceedings ICT98 (Cat. No.98TH8365). TI - Crystal structure and magnetic susceptibility of a Ru2Si3 single crystal UR - http://cvining.com/system/files/articles/vining/Ohsugi-ICT-1998.pdf ER -