Zobrazeno 1 - 10
of 8 362
pro vyhledávání: '"Dey K"'
Autor:
Sahu, S. R., Khan, S., Tripathy, A., Dey, K., Bano, N., Mohan, S. Raj, Joshi, M. P., Verma, S., Rao, B. T., Sathe, V. G., Shukla, D. K.
Publikováno v:
Physical Review B 108, 125133 (2023)
Multiple exciton generation (MEG) is a widely studied phenomenon in semiconductor nanocrystals and quantum dots, aimed at improving the energy conversion efficiency of solar cells. MEG is the process wherein incident photon energy is significantly la
Externí odkaz:
http://arxiv.org/abs/2310.14835
In recent years, the 'kirigami' technique has gained significant attention for creating meta-structures and meta-materials with exceptional characteristics, such as unprecedented stretchability. These properties, not typically inherent in the origina
Externí odkaz:
http://arxiv.org/abs/2309.02531
Autor:
Sahu, S. R., Majid, S. S., Ahad, A., Tripathy, A., Dey, K., Pal, S., De, B. K., Hsieh, Wen-Pin, Rawat, R., Sathe, V. G., Shukla, D. K.
Vanadium dioxide (VO2) has drawn significant attention for its near room temperature insulator to metal transition and associated structural phase transition. The underlying Physics behind the temperature induced insulator to metal and concomitant st
Externí odkaz:
http://arxiv.org/abs/2210.02691
We report the thermodynamic properties studied by thermal expansion, magnetostriction, magnetisation, and specific heat measurements as well as the low-energy magnetic excitations of \mto\ and investigate how magneto-elastic coupling and magnetic ani
Externí odkaz:
http://arxiv.org/abs/2207.14750
Multiple exciton generation (MEG) is a widely studied phenomenon in semiconductor nanocrystals and quantum dots wherein photo-excited carriers relax by generating additional electron-hole pairs. Here, we present the first experimental observation of
Externí odkaz:
http://arxiv.org/abs/2202.04909
Nuclear modification factor predicts whether a medium is formed in a collision system or not. One may verify, if scaling of momentum (transverse) distribution from heavy-ion systems with incoherent superposition of number of binary collision, is maki
Externí odkaz:
http://arxiv.org/abs/2110.04106
We report the magnetostrictive length changes of CoTiO$_3$ studied by means of high-resolution dilatometry in magnetic fields ($B$) up to 15~T. In the long-range antiferromagnetically ordered phase below $T_N$ = 38~K, the easy-plane type spin structu
Externí odkaz:
http://arxiv.org/abs/2109.11923
Autor:
Hoffmann, M., Dey, K., Werner, J., Bag, R., Kaiser, J., Wadepohl, H., Skourski, Y., Abdel-Hafiez, M., Singh, S., Klingeler, R.
High-quality single crystals of CoTiO$_3$ are grown and used to elucidate in detail structural and magnetostructural effects by means of high-resolution capacitance dilatometry studies in fields up to 15 T which are complemented by specific heat and
Externí odkaz:
http://arxiv.org/abs/2107.07795
Autor:
Ahad, Abdul, Gautam, K., Dey, K., Majid, S. S., Rahman, F., Sharma, S. K., Coaquira, J. A. H., da Silva, Ivan, Welter, E., Shukla, D. K.
Publikováno v:
Physical Review B 102, 094428 (2020)
[Ca$_2$CoO$_3$]$_{0.62}$[CoO$_2$], a two dimensional misfit metallic compound, is famous for its rich phases accessed by temperature, $i.e.$ high temperature spin-state transition, metal-insulator transition (MIT) at intermediate temperature ($\sim$
Externí odkaz:
http://arxiv.org/abs/2004.08319
Autor:
Ahad, Abdul, Gautam, K., Majid, S. S., Dey, K., Tripathy, A., Rahman, F., Choudhary, R. J., Sankar, R., Sinha, A. K., Kaul, S. N., Shukla, D. K.
Publikováno v:
Phys. Rev. B 107, 214405 (2023)
Attempts to unravel the nature of magnetic ordering in LaSrCoO$_4$ (Co$^{3+}$), a compound intermediate between antiferromagnetic (AFM) La$_2$CoO$_4$ (Co$^{2+}$) and ferromagnetic (FM) Sr$_2$CoO$_4$ (Co$^{4+}$), have met with a limited success so far
Externí odkaz:
http://arxiv.org/abs/2002.00135