Zobrazeno 1 - 10
of 210
pro vyhledávání: '"Topwal, D."'
Autor:
Lohani, H., Mishra, P., Banerjee, A., Majhi, K., Ganesan, R., Manju, U., Topwal, D., Kumar, P. S. Anil, Sekhar, B. R.
Publikováno v:
Scientific Reports 2017, 7, 4567
We present our angle resolved photoelectron spectroscopy (ARPES) and density functional theory results on quaternary topological insulator (TI) BiSbTe1.25Se1.75 (BSTS) confirming the non-trivial topology of the surface state bands (SSBs) in this comp
Externí odkaz:
http://arxiv.org/abs/2310.18922
Autor:
Khatun, Aisha, Aich, Payel, Schoekel, Alexander, Gloskovskii, Andrei, Panda, Soumyakanta, Mohapatra, Niharika, Mahanti, Subhendra D., Manju, U., Topwal, D.
Publikováno v:
In Journal of Alloys and Compounds 15 June 2024 988
Autor:
Mahana, Sudipta, Rakshit, Bipul, Nandi, Pronoy, Basu, Raktima, Dhara, Sandip, Manju, U., Mahanti, Subhendra D., Topwal, D.
Publikováno v:
Phys. Rev. B 102, 245120 (2020)
We report on detailed structural, electronic and magnetic studies of GdMn$_{1-x}$Cr$_x$O$_3$ for Cr doping levels 0 $\le$ $x$ $\le$ 1. In the solid solutions, the Jahn-Teller distortion associated with Mn$^{3+}$ ions gives rise to major changes in th
Externí odkaz:
http://arxiv.org/abs/1908.02307
Autor:
Rahaman, A., Chakraborty, M., Paramanik, T., Maurya, R. K., Mahana, S., Bindu, R., Topwal, D., Mahadevan, P., Choudhury, D.
Publikováno v:
Phys. Rev. B 100, 115162 (2019)
Using density-functional theory calculations and experimental investigations on structural, magnetic and dielectric properties, we have elucidated a unique tetragonal ground state for MnTi2O4, a Ti^{3+} (3d^1)-ion containing spinel-oxide. With loweri
Externí odkaz:
http://arxiv.org/abs/1904.01792
Autor:
Khatun, Aisha, Aich, Payel, Schoekel, Alexander, Panda, Soumyakanta, Mohapatra, N., Kumar Nandy, Ashis, Mahanti, Subhendra D., Topwal, D.
Publikováno v:
In Journal of Magnetism and Magnetic Materials 15 February 2023 568
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Autor:
Bommali, R. K., Mahapatra, D. P., Gupta, H., Guha, Puspendu, Topwal, D., Prakash, G. Vijaya, Ghosh, S., Srivastava, P.
Near surface silver nanoparticles embedded in silicon oxide were obtained by 40 keV silver negative ion implantation without the requirement of an annealing step. Ion beam induced local heating within the film leads to an exo-diffusion of the silver
Externí odkaz:
http://arxiv.org/abs/1805.10576
Publikováno v:
Phys. Rev. B 97, 224107 (2018)
Temperature dependent synchrotron x-ray diffraction and extended x-ray absorption fine structure (EXAFS) studies were performed to understand the role of structural characteristics in driving the magnetoelectric mul- tiferoic properties of GdCrO3. Th
Externí odkaz:
http://arxiv.org/abs/1803.08318
We report results of the dielectric and pyroelectric measurements on solid solutions of Ga$_2$$_-$$_x$Fe$_x$O$_3$ with x = 0.75, 1.0 and 1.25. These systems exhibit dipolar cluster glass behavior in addition to the spin glass behavior making them bel
Externí odkaz:
http://arxiv.org/abs/1707.03204
Autor:
Mahana, Sudipta, Rakshit, Bipul, Basu, Raktima, Dhara, Sandip, Joseph, Boby, Manju, U., Mahanti, Subhendra D., Topwal, D.
Publikováno v:
Phys. Rev. B 96, 104106 (2017)
Our detailed temperature dependent synchrotron powder x-ray diffraction studies along with first-principles density functional perturbation theory calculations, enable us to shed light on the origin of ferroelectricity in GdCrO3. The actual lattice s
Externí odkaz:
http://arxiv.org/abs/1706.05547