• B R Nag

      Articles written in Bulletin of Materials Science

    • An investigation of the growth of In0·53Ga0·47As layers on InP by liquid phase epitaxy

      S Dhar Mala Mitra J B Roy B R Nag

      More Details Abstract Fulltext PDF

      Liquid phase epitaxial growth of lattice-matched In0·53Ga0·47As layers on InP substrates is investigated with particular emphasis on the role of interface defects on layer quality. By differential Hall measurements it is established that a bad interface, resulting from the thermal decomposition of InP substrate prior to growth, degrade the electron mobility in all parts of the layer and the effect is most pronounced at regions close to the interface. However layers with much better physical and electrical characteristics are grown following steps to ensure substrate surfaces free from any thermal damage.

    • Hot electron transport in In (0·53) Ga (0·47) As

      B R Nag

      More Details Abstract Fulltext PDF

      Monte Carlo results on the hot-electron transport coefficients of In(0·53) Ga (0·47) As are presented. The material parameters were selected by analysing the experimental hot-electron velocity-field characteristics and calculations were made by including all the relevant scattering mechanisms. Results are presented for the bulk drift velocity and diffusion coefficient and also for the velocity-field characteristics of submicron samples and 2 DEG.

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2021-2022 Indian Academy of Sciences, Bengaluru.