Papers by Keyword: Transport Property

Paper TitlePage

Authors: K. Schmalz, M.S. Kagan, I.V. Altukhov, K.A. Korolev, Dmitry Orlov, V.P. Sinis, S.G. Tomas, K.L. Wang, I.N. Yassievich
Authors: K. Schmalz, M.S. Kagan, I.V. Altukhov, K.A. Korolev, Dmitry Orlov, V.P. Sinis, S.G. Tomas, K.L. Wang, I.N. Yassievich
Authors: Teng Fang, Shu Qi Zheng, Hong Chen, Peng Zhang
Abstract: The band structures and transport properties of Half-Heusler compounds NbFeSb and NbRuSb were studied using ab initio calculations and the Boltzmann transport equation with constant scattering time approximation (CSTA). Both compounds were identified as good p-type thermoelectric materials because of the combination of heavy and light bands in the valence band maximum (VBM). The Seebeck coefficients for NbRuSb were lower than that for NbFeSb; while the electrical conductivities for NbRuSb were little higher than that for NbFeSb. Consequently, the power factors in the p-type regimes for both compounds were similar at a given temperature. NbFeSb and NbRuSb could be efficient materials for thermoelectric generators based on the results in the present investigation.
Authors: Sanjeev K. Gupta, Prafulla K. Jha
Abstract: The present paper presents the carrier-acoustic phonon scattering rate and charge transport in spherical and TMV viruses. We demonstrate theoretically that the absorption rate changes according to the phonon energy while emission of phonon is limited by the both electron and hole energy. The obtained conductivity for spherical and TMV viruses suggest that the TMV virus is more conducting and therefore may be a good candidate for the connector or wire to be used in the nano- and molecular- electronics . The value of resistance obtained for TMV virus is lower than the resistance of DNA.
Authors: Yan Bao, Yuan Zhao, Ni Zhu
Abstract: First-principle calculations were performed for the study of the superconductor MgB2 and AlB2. The doping effect of compound Mg1-xAlxB2 was analyzed by supercell method. Band structure, electronic bands structure, total and partial densities of states were calculated and analyzed in detail. Covalent bond effects (CBC) appeared in the electronic bands structure when doping Al to MgB2. It is found that this CBC effects on Mg1-xAlxB2 samples have prominent relations to superconductivity. The study of the density of state indicates that the superconductivity decreases with the increase of compound Al. In particular, there exists the transition of superconductor to non-superconductor with the change of x. The theoretical predictions agreed well with experimental measurements.
Authors: S.P. Jiang, J.G. Love, Sukhvinder P.S. Badwal
Authors: T. Fujiwara, G. Trambly de Laissardière, Satoru Yamamoto
Authors: V.A. Peña Rodríguez, E.C. Passamani, E. Baggio-Saitovitch, S.L. Bud'ko, M. El Massalami, M. Gafhari, M.A. Continentino
Authors: Eckhard Müller, K. Schackenberg, J. Schilz, Wolfgang A. Kaysser
Showing 1 to 10 of 44 Paper Titles