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High pressure structural phase transition and elastic properties of Ga<Subscript>1-x</Subscript>In<Subscript>x</Subscript>As semiconducting compounds

Varshney, D.; Joshi, G. - In: The European Physical Journal B - Condensed Matter and … 70 (2009) 4, pp. 523-534

Persistent link: https://www.econbiz.de/10009282210

Electrical resistivity behaviour of sodium substituted manganites: electron-phonon, electron-electron and electron-magnon interactions

Varshney, D.; Choudhary, D.; Shaikh, M. W.; Khan, E. - In: The European Physical Journal B - Condensed Matter and … 76 (2010) 2, pp. 327-338

The present paper focuses on a quantitative analysis of the metallic and semiconducting behaviour of electrical resistivity in perovskite manganites La<Subscript>1-</Subscript> <Subscript> x </Subscript>Na<Subscript> x </Subscript>MnO<Subscript>3</Subscript> (x=0.1, 0.17). An effective interionic interaction potential (EIoIP) with the long-range Coulomb, van der Waals (vdW) interaction...</subscript></subscript></subscript></subscript>

Persistent link: https://www.econbiz.de/10009282736

Electrical resistivity in the ferromagnetic metallic state of La-Ca-MnO<InlineEquation ID="Equ1"> <EquationSource Format="TEX">$\mathsf{_{3}}$</EquationSource> </InlineEquation>: Role of electron-phonon interaction

Varshney, D.; Kaurav, N. - In: The European Physical Journal B - Condensed Matter and … 40 (2004) 2, pp. 129-136

The temperature-dependent resistivity of the perovskite manganites La<Subscript>1-x </Subscript>Ca<Subscript> x </Subscript>MnO<Subscript>3</Subscript>, with x=0.33, is theoretically analysed within the framework of the classical electron-phonon model of resistivity, i.e., the Bloch-Gruneisen model. Due to inherent acoustic (low-frequency) phonons (<InlineEquation ID="Equ2"> <EquationSource...</equationsource></inlineequation></subscript></subscript></subscript>

Persistent link: https://www.econbiz.de/10009283005