N. Sarkar

activity

20042006

collaborators

Showing 2006Show all

2 papers · 1 filter

cond-mat.mtrl-sci2006

Photoluminescence Spectroscopy of Band Gap Shrinkage in GaN

Niladri Sarkar, Subhasis Ghosh

We present an experimental investigation of band-gap shrinkage in n-type GaN using photoluminescence spectroscopy, as a function of electron concentration and temperature. The obse…

cond-mat.supr-con2006

Photoinduced Suppression of Superconductivity in Bi $_{2}$ Sr $_{2}$ Ca $_{2}$ Cu $_{3}$ O $_{10 + δ}$

Subhasis Ghosh, Niladri Sarkar

Superconductivity in high temperature superconductors is achieved by introducing charge carriers into cuprate insulators containing CuO $_{2}$ planes. Perturbation in these CuO $_{2}$ pl…

Photoluminescence Spectroscopy of Band Gap Shrinkage in GaN

Photoinduced Suppression of Superconductivity in Bi2​Sr2​Ca2​Cu3​O10+δ​

Photoinduced Suppression of Superconductivity in Bi $_{2}$ Sr $_{2}$ Ca $_{2}$ Cu $_{3}$ O $_{10 + δ}$