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pro vyhledávání: '"KUMAR, Umesh"'
We theoretically investigate the resonant inelastic X-ray scattering (RIXS) spectra in a quasi-1D chain of weakly coupled frustrated spin-1/2 trimers, as realized in Na$_{2}$Cu$_{3}$Ge$_{4}$O$_{12}$, with Cu $d^{9}$ 1/2 spins. We compute multi-spin c
Externí odkaz:
http://arxiv.org/abs/2410.15082
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, Arun, Kaushal, Anjali, Verma, Prabhakar K., Gupta, Manoj K., Chandra, Girish, Kumar, Umesh, Yadav, Ashok K., Kumar, Deepak
Publikováno v:
In European Journal of Medicinal Chemistry 15 December 2024 280
Publikováno v:
In Journal of Food Composition and Analysis March 2025 139
Autor:
Amarjeet, Kumar, Umesh, Sodhi, Monika, Kumar, Dinesh, Vivek, Prince, Niranjan, Saket K., Kataria, Ranjit Singh, Kumar, Sudarshan, Sharma, Manish, Tiwari, Manish, Aggarwal, Rajeev A.K., Bharti, Vijay K., Iqbal, M., Rabgais, Stanzin, Kumar, Abhishek, Chanda, Divya, Mukesh, Manishi
Publikováno v:
In Food Chemistry 1 February 2025 464 Part 3
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:
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