Skip to main content

7 Result(s)

within N. P. Lalla Remove this filter

and

  1. Article

    Open Access

    Displacive-type ferroelectricity from magnetic correlations within spin-chain

    Observation of ferroelectricity among non-d0 systems, which was believed for a long time an unrealistic concept, led to various proposals for the mechanisms to explain the same (i.e. magnetically induced ferroele...

    Tathamay Basu, V. V. Ravi Kishore, Smita Gohil, Kiran Singh… in Scientific Reports (2014)

    Download PDF (1995 KB) View Article

  2. No Access

    Article

    Synthesis of nanocrystalline mixed metal fluorides in nonaqueous medium

    Synthesis of mixed metal fluorides of the general formula, KMF3 (M = Mg, Mn, Co, Ni, Cu and Zn), possessing perovskite structure was investigated in non-aqueous medium. The fluorides were characterized by powder ...

    Neetu Tyagi, Epsita Ghanti, Nikesh Gupta, N. P. Lalla… in Bulletin of Materials Science (2009)

  3. No Access

    Article

    Effect of cobalt substitution on microstructure and magnetic properties in ZnO nanoparticles

    Ferromagentic semiconductors have been actively pursued because of their potential as spin polarized carrier sources and easy integration into semiconductor technology. One such material, ZnO has been shown to...

    Chandana Rath, Sonal Singh, P. Mallick, D. Pandey, N. P. Lalla… in Indian Journal of Physics (2009)

  4. No Access

    Article

    Some new structural and electronic characteristics of quasicrystals

    The quasicrystals being based on quasiperiodic order other than crystal like periodic translational order and embodying self similarity, present unique condensed matter phases. In addition to their curious str...

    O N Srivastava, R S Tiwari, N P Lalla, R K Mandal… in Bulletin of Materials Science (1999)

  5. No Access

    Article

    On the new structural phases in Al65Cu20Cr15 quasicrystalline alloy

    The quasicrystalline (qc) alloy Al65Cu20Cr15, unlike its Ru- and Fe-bearing counterparts like Al65Cu20Ru15 and Al65Cu20Fe15, is a metastable phase. This qc alloy has been shown to possess several structural varia...

    Varsha Khare, N. P. Lalla, R. S. Tiwari, O. N. Srivastava in Journal of Materials Research (1995)

  6. No Access

    Article

    Electrical conductivity and structural behaviour of Al65Cu20Ru15 quasicrystalline alloy

    The low temperature conductivity σ (T) and the magnetoresistance (up to 8 T) of a phason disorder free pure Al65Cu20Ru15 quasicrystalline alloy, prepared by melt casting, has been investigated in the temperature ...

    N. P. Lalla, R. S. Tiwari, O. N. Srivastava… in Zeitschrift für Physik B Condensed Matter (1995)

  7. No Access

    Article

    Coherent orientation relationship among various quasicrystalline and crystalline phases in rapidly solidified Al78Mn20Ge2 alloy

    Rapidly solidified Al78Mn20Ge2 alloy exhibits a curious structural feature; this corresponds to the simultaneous occurrence of almost all the quasicrystalline phases, e.g., primitive and face-centered icosahedral...

    N. P. Lalla, R. S. Tiwari, O. N. Srivastava in Journal of Materials Research (1992)