52 citations
- National Taiwan UniversityTW8 papers
- Bhabha Atomic Research CentreIN3 papers
- Institute of Atomic and Molecular Sciences, Academia SinicaTW3 papers
- Indian Institute of Technology KharagpurIN2 papers
- Institute of Physics, BhubaneshwarIN2 papers
- Nagoya Institute of TechnologyJP2 papers
- National Cheng Kung UniversityTW2 papers
- PSG INSTITUTE OF TECHNOLOGY AND APPLIED RESEARCHIN2 papers
- Anna University Regional Campus, Coimbatore1 paper
- Atomic Energy Regulatory BoardIN1 paper
- Bhabha Atomic Research Center HospitalIN1 paper
- Indian Institute of Science BangaloreIN1 paper
17 papers
Phonon confinement and substitutional disorder in Cd1-xZnxS Nanocrystals
Satyaprakash Sahoo, S. Dhara, V. Sivasubramanian +2
1LO optical phonons in free-standing mixed Cd1-xZnxS nanocrystals, synthesized using chemical precipitation, are investigated using Raman spectroscopy. As expected for the nanocrys…
Synthesis, characterization and low temperature studies of iron chalcogenide superconductors
J. Janaki, T. Geetha Kumary, Awadhesh Mani +4
We have synthesized tetragonal iron selenide and telluride superconductors through solid state reaction at 450deg.C and 550deg.C respectively. These synthesis temperatures have bee…
Phonon Confinement in Stressed Silicon Nanocluster
Satyaprakash Sahoo, S. Dhara, S. Mahadevan +1
Confined acoustic and optical phonons in Si nanoclusters embedded in sapphire, synthesized using ion-beam implantation are investigated using Raman spectroscopy. The l = 0 and l =…
A complete Raman mapping of phase transitions in Si under indentation
C. R. Das, H. C. Hsu, S. Dhara +7
Crystalline Si substrates are studied for pressure induced phase transformation under indentation at room temperature using Berkovich tip. Raman scattering study is used for the id…
Phase Behavior of Poly(N-isopropylacrylamide) Nanogel dispersions: Temperature Dependent Particle Size and Interactions
J. Brijitta, B. V. R. Tata, T. Kaliyappan
The phase behavior of poly (N-isopropylacrylamide) nanoparticles dispersed in aqueous medium is investigated as a function of temperature using static and dynamic light scattering…
An Automated Laboratory Laser Heating Arrangement for Materials Synthesis at High Temperatures and High Pressures
N. Subramanian, Mrithula Ummru, R. Bindu +4
This paper describes the automation of a laser heating arrangement for synthesizing and studying materials at high pressures (up to ~ 1 Mbar) and high temperatures (up to ~ 5000 K)…