Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Saha, Pinku"'
We have synthesized an orthorhombic phase of nickel and silicon doped Fe$_{7}$C$_{3}$ at high-pressure and high temperature using a laser-heated diamond anvil cell. The synthesized material is characterized using X-ray diffraction (XRD), Raman spectr
Externí odkaz:
http://arxiv.org/abs/2304.00240
Autor:
Samanta, Debabrata, Mazumder, Aritra, Chaudhary, Sonu Pratap, Ghosh, Bishnupada, Saha, Pinku, Bhattacharyya, Sayan, Mukherjee, Goutam Dev
We have carried out temperature-dependent x-ray diffraction and Raman scattering experiments on powder $Cs_3Bi_2Br_9$. Trigonal to monoclinic structural transition at around 95 K is discussed and shown to be driven by the softening of the soft mode.
Externí odkaz:
http://arxiv.org/abs/2302.00226
Autor:
Ghosh, Bishnupada, Sahu, Mrinmay, Samanta, Debabrata, Saha, Pinku, Mandal, Anshuman, Mukherjee, Goutam Dev
A detailed high pressure investigation is carried out using x-ray diffraction, Raman spectroscopy and low temperature resistivity measurements on hexagonal ZrSe$_{2}$ having an excess of 3 at.\% Zr. Structural studies show that the sample goes throug
Externí odkaz:
http://arxiv.org/abs/2205.01322
Autor:
Chakravorty, Anusmita, Boulle, Alexandre, Debelle, Aurélien, Manna, Gouranga, Saha, Pinku, Kanjilal, D., Kabiraj, Debdulal
Publikováno v:
Journal of Applied Physics; 7/21/2024, Vol. 136 Issue 3, p1-10, 10p
Publikováno v:
In Journal of Molecular Structure 5 April 2024 1301
Autor:
Saha, Pinku, Mukherjee, Goutam Dev
We report the measurements of the thermal conductivity ($\kappa$) of iron (Fe) and nickel (Ni) at high pressures and high temperatures. $\kappa$ values are estimated from the temperature measurements across the sample surface in a laser heated diamon
Externí odkaz:
http://arxiv.org/abs/2105.08962
Autor:
Samanta, Debabrata, Saha, Pinku, Ghosh, Bishnupada, Chaudhury, Sonu Pratap, Bhattacharya, Sayan, Chatterjee, Swastika, Mukherjee, Goutam Dev
We report emergence of photoluminescence at room temperature in trigonal $Cs_3Bi_2Br_9$ at high pressures. Enhancement in intensity with pressure is found to be driven by increase in distortion of $BiBr_6$ octahedra and iso-structural transitions. El
Externí odkaz:
http://arxiv.org/abs/2009.01478
Autor:
Saha, Pinku, Ghosh, Bishnupada, Mazumder, Aritra, Glazyrin, Konstantin, Mukherjee, Goutam Dev
We report high pressure X-ray diffraction and a detailed systematic Raman measurements on $ReS_2$ sample, which is mechanically exfoliated from a single crystal. A few new Bragg peaks are observed to emerge above 6 GPa indicating a structural transit
Externí odkaz:
http://arxiv.org/abs/2005.03958
Autor:
Jana, Rajesh, Dutta, Apurba, Saha, Pinku, Mandal, Kapil, Ghosh, Bishnupada, Chandra, Amreesh, Das, I., Mukherjee, Goutam Dev
A detailed temperature and pressure investigation on BiGdO$_{3}$ is carried out by means of dielectric constant, piezoelectric current, polarization-electric field loop, Raman scattering and x-ray diffraction measurements. Temperature dependent diele
Externí odkaz:
http://arxiv.org/abs/2002.09332
Autor:
Mondal, Anshuman, Saha, Pinku, Ghosh, Bishnupada, Sahu, Mrinmay, Mukherjee, Goutam Dev, Ranjan, Rajeev, Brajesh, Kumar
The solid solution $0.5Ba(Ti_{0.8}Zr_{0.2})O_3$-$0.5(Ba_{0.7}Ca_{0.3})TiO_3$ (BCZT) has become a promising member of the lead-free piezoelectric materials because of its exceptionally high piezoelectric properties. In this study, we focus on studying
Externí odkaz:
http://arxiv.org/abs/2002.00567