Zobrazeno 1 - 10
of 98
pro vyhledávání: '"Datta, Trinanjan"'
We investigate the excitation spectra of a spin-1/2 antiferromagnetic Heisenberg trimer spin chain by employing a combination of numerical and theoretical techniques. Utilizing the Krylov-space correction-vector method in density matrix renormalizati
Externí odkaz:
http://arxiv.org/abs/2410.07347
Autor:
Chen, Wei-Yang, Huang, Shih-Wen, Tseng, Yi, Zhang, Wenliang, Paris, Eugenio, Asmara, Teguh Citra, Lee, Jenn-Min, Schmitt, Thorsten, Shao, Yu-Cheng, Chuang, Yi-De, Freelon, Byron, Yao, Dao-Xin, Datta, Trinanjan
Resonant inelastic x-ray scattering (RIXS) experiment was performed at the Mn $L_3$ edge. A 10 $\%$ Mn-doped Sr$_{3}$Ru$_{2}$O$_{7}$ compound, where the Mn$^{3+}$ ions are in the 3$d^4$ state, were probed for $dd$ excitations. The dilute doping conce
Externí odkaz:
http://arxiv.org/abs/2404.02963
We investigate the dynamical phases and phase transitions arising in a classical two-dimensional anisotropic $XY$ model under the influence of a periodically driven temporal external magnetic field in the form of a symmetric square wave. We use a com
Externí odkaz:
http://arxiv.org/abs/2402.07505
Publikováno v:
Front. Phys. 19(5), 53201 (2024)
Spin-rotation coupling (SRC) is a fundamental phenomenon that connects electronic spins with the rotational motion of a medium. We elucidate the Einstein-de Haas (EdH) effect and its inverse with SRC as the microscopic mechanism using the dynamic spi
Externí odkaz:
http://arxiv.org/abs/2307.10390
Autor:
Singh, Arnab, Li, Junli, Montoya, Sergio A., Morley, Sophie, Fischer, Peter, Kevan, Steve D., Fullerton, Eric E., Yao, Dao-Xin, Datta, Trinanjan, Roy, Sujoy
Publikováno v:
npj Quantum Mater. 9, 2 (2024)
Presence of multiple competing periodicities may result in a system to go through states with modulated periodicities, an example of which is the self-similar staircase-like structure called the Devil's staircase. Herein we report on a novel staircas
Externí odkaz:
http://arxiv.org/abs/2307.04938
Publikováno v:
Phys. Rev. B 107, 184402 (2023)
We investigate the experimental signatures of Raman spectroscopy of bi- and tri-magnon excitations in the distorted triangular lattice antiferromagnets alpha-LCr2O4 (L=Sr, Ca). We utilize spin wave theory to analyze the nearly 120 degree spin-3/2 spi
Externí odkaz:
http://arxiv.org/abs/2302.06642
Kagome antiferromagnetic metal FeSn has become an attracting platform for the exploration of novel electronic states, such as topological Dirac states and the formation of flat bands by localized electrons. Apart from the electronic properties, Dirac
Externí odkaz:
http://arxiv.org/abs/2209.00187
Publikováno v:
Phys. Rev. E 107, 014401 (2023)
Cells are dynamic systems characterized by temporal variations in biophysical properties such as stiffness and contractility. Recent studies show that the recruitment and release of actin filaments into and out of the cell cortex - a network of prote
Externí odkaz:
http://arxiv.org/abs/2203.01485
Publikováno v:
Phys. Rev. B 105, 245102 (2022)
We propose a new kind of geometric effective theory based on curved space-time single valley Dirac theory with spin connection for twisted bilayer graphene under generic twist angle. This model can reproduce the nearly flat bands with particle-hole s
Externí odkaz:
http://arxiv.org/abs/2108.11419
Autor:
Rõõm, Toomas, Viirok, Johan, Peedu, Laur, Nagel, Urmas, Farkas, Daniel G., Szaller, David, Kocsis, Vilmos, Bordács, Sandor, Kézsmárki, Istvan, Kamenskyi, Dymtro L., Engelkamp, Hans, Ozerov, Mike, Smirnov, Dmitry, Krzystek, Jurek, Thirunavukkuarasu, Komalavalli, Ozaki, Yasuko, Tomioka, Yasuhide, Ito, Toshimitsu, Datta, Trinanjan, Fishman, Randy S.
Publikováno v:
Phys. Rev. B 102, 214410 (2020)
Using THz spectroscopy, we show that the spin-wave spectrum of multiferroic BiFeO$_3$ in its high-field canted antiferromagnetic state is well described by a spin model that violates rhombohedral symmetry. We demonstrate that the monoclinic distortio
Externí odkaz:
http://arxiv.org/abs/2012.09178