Skip to main content

6 Result(s)

within K. Patnaik Remove this filter

and

  1. No Access

    Article

    DC Electrical Resistivity Study of Granularity in YBa2CU3O7/Ag Composites

    Temperature-dependent electrical resistivity in a set of YBa2Cu3O7−x /Ag composites, all prepared under an identical sintering schedule, is analyzed to extract granularity information. The weak-link resistivity ρ

    D. Behera, K. Patnaik, N. C. Mishra in Journal of Superconductivity (1998)

  2. No Access

    Article

    Ag-do**-induced coordination incompatibility and its effect on superconductivity in YBCO

    A series of samples of YBa2Cu3-xAgxO7-y with 0≤x≤0.12 composition was studied to probe into the Ag substitution effect on oxygen stoichiometry, lattice parameters, and superconducting properties. With the samples...

    D. Behera, N. C. Mishra, K. Patnaik in Journal of Superconductivity (1997)

  3. No Access

    Article

    Metastability-induced charge and spin fluctuations in 123 type superconductors

    Various defects arising from lattice mismatch and coordination incompatibility at the cation sites are known to lend the cuprates a metastable state at temperatures and pressures where they exhibit superconduc...

    H. P. Mohapatra, D. Behera, S. Misra, N. C. Mishra… in Journal of Superconductivity (1993)

  4. No Access

    Article

    Cooperative effect of Zn and Ga do** in YBa2Cu3O7

    The creation of local magnetic moments at the plane and chain Cu-sites in YBa2Cu3O7 due to incorporation of Ga3+ and Zn2+ has been studied with respect to the superconducting transition temperature and structural...

    N C Mishra, A K Rajarajan, K Patnaik, R Vijayaraghavan… in Bulletin of Materials Science (1991)

  5. No Access

    Article

    A new criterion for the mixed crystal behaviour in the diatomic linear chain model

    Lucovsky, Brodsky, Burstein (LBB) have studied the behaviour of mixed crystals by setting up a criterion for the existence of local mode frequencies in real crystals starting from a diatomic linear chain model...

    S N Behera, P Nayak, K Patnaik in Pramana (1977)

  6. No Access

    Article

    Impurity pair modes in a diatomic linear chain: nearest neighbour pair

    The behaviour of the impurity modes due to a pair of substitutional impurities characterized by both mass as well as force-constant changes and occupying nearest neighbour positions in a diatomic linear chain,...

    S N Behera, K Patnaik in Pramana (1976)