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pro vyhledávání: '"Kumar, Umesh"'
We consider a Klein-Gordon chain that is periodically driven at one end and has dissipation at one or both boundaries. An interesting numerical observation in a recent study~[arXiv:2209.03977] was that for driving frequency in the phonon band, there
Externí odkaz:
http://arxiv.org/abs/2310.14072
We investigate the effects of Hund's coupling on the resonant X-ray absorption spectra of the recently discovered family of layered nickelate superconductors. We contrast two scenarios depending on the relative strength of the ratio of the effective
Externí odkaz:
http://arxiv.org/abs/2310.00983
Resonant inelastic x-ray spectroscopy (RIXS) has emerged as an important tool to explore magnetism in two-dimensional (2D) antiferromagnet realized in strongly correlated materials. Here we consider the Heisenberg model with nearest and next nearest
Externí odkaz:
http://arxiv.org/abs/2305.00802
Publikováno v:
Journal of Stress Physiology & Biochemistry, Vol 9, Iss 2, Pp 131-147 (2013)
Physiological and biochemical changes as well as the activities of anti-oxidative enzymes under lead (Pb2+) phytotoxicity were investigated in 20 days old soybean (Glycine max L.) seedlings grown hydroponically in the laboratory under different pH co
Externí odkaz:
https://doaj.org/article/4d5240d9437849f38b9aad9faa693e28
Autor:
Kumar, Umesh
Publikováno v:
Indian Literature, 2023 Mar 01. 672 (334), 146-151.
Externí odkaz:
https://www.jstor.org/stable/27291754
Publikováno v:
Communications Physics 5, 157 (2022)
In recent years, there has been an intense search for materials realizing the Kitaev quantum spin liquid model. A number of edge-shared compounds with strong spin-orbit coupling, such as RuCl$_3$ and iridates, have been proposed to realize this model
Externí odkaz:
http://arxiv.org/abs/2111.01316
Autor:
Srivastav, Amit Kumar, Rajput, Pradeep Kumar, Jaiswal, Jyoti, Yadav, Umesh C.S., Kumar, Umesh
Publikováno v:
In International Journal of Biological Macromolecules May 2024 266 Part 2
Autor:
R., Venkatesh Kumar, Vyry, Wouatsa Nangue Arlette, Chauhan, Seema, Singh, Vandana, Srivastava, Devika, Kumar, Umesh, Raj, Ritu, Verma, Abhishek
Publikováno v:
In Food and Humanity May 2024 2
Autor:
Kumar, Umesh, Nag, Abhishek, Li, Jiemin, Robarts, H. C., Walters, A. C., García-Fernández, Mirian, Saint-Martin, R., Revcolevschi, A., Schlappa, Justine, Schmitt, Thorsten, Johnston, Steve, Zhou, Ke-Jin
Resonant inelastic x-ray scattering (RIXS) is an evolving tool for investigating spin dynamics of strongly correlated materials, which complements inelastic neutron scattering. Both techniques have found that non-spin-conserving (NSC) excitations in
Externí odkaz:
http://arxiv.org/abs/2110.03186
Publikováno v:
Phys. Rev. B 105, L180414 (2022)
The inverse Faraday effect (IFE), where a static magnetization is induced by circularly polarized light, offers a promising route to ultrafast control of spin states. Here we study the IFE in Mott insulators using the Floquet theory. We find two dist
Externí odkaz:
http://arxiv.org/abs/2109.01940