A5027118797- Advanced Condensed Matter Physics
- Random Matrices and Applications
- Topological Materials and Phenomena
- Theoretical and Computational Physics
- Physics of Superconductivity and Magnetism
- Advanced Materials Characterization Techniques
- Rare-earth and actinide compounds
- Quantum many-body systems
- Quantum chaos and dynamical systems
- Advanced materials and composites
- Markov Chains and Monte Carlo Methods
- Diamond and Carbon-based Materials Research
- Intermetallics and Advanced Alloy Properties
- Inorganic Fluorides and Related Compounds
- Impact of Light on Environment and Health
- Stochastic processes and statistical mechanics
- Iron-based superconductors research
- Statistical Mechanics and Entropy
- Magnetism in coordination complexes
- Autonomous Vehicle Technology and Safety
- Advanced Combinatorial Mathematics
- Advanced Chemical Physics Studies
- Video Surveillance and Tracking Methods
- Spectroscopy and Quantum Chemical Studies
University of Florida
2019-2023
Indian Space Research Organisation
2014
An external magnetic field can induce a transition in $\alpha$-RuCl$_3$ from an ordered zigzag state to disordered that is possibly related the Kitaev quantum spin liquid. Here we present new dependent inelastic neutron scattering and magnetocaloric effect measurements implying existence of additional out liquid phase at upper limit $B_u$. The shows three distinct regimes response. In low response magnon peaks; intermediate regime only continuum scattering, above $B_u$ sharp peaks lower...
We introduce a log-gas model that is generalization of random matrix ensemble with an additional interaction, whose strength depends on parameter $\gamma$. The equilibrium density computed by numerically solving the Riemann-Hilbert problem associated ensemble. effect $\gamma$ two-body interaction can be understood in terms effective $\gamma$-dependent single-particle confining potential.
Abstract In the search of topological superconductors, nailing down Fermiology normal state is as crucial a prerequisite unraveling superconducting pairing symmetry. particular, number time-reversal-invariant momenta (TRIM) in Brillouin zone enclosed by Fermi surfaces closely linked to class systems, and can experimentally be investigated. We report here detailed study de Haas van Alphen quantum oscillations single crystals semimetal CaSn 3 with torque magnetometry high magnetic fields up 35...
Frustrated magnets can be platforms for quantum spin-liquid states. A putative candidate, the hyperhoneycomb Cu oxalate framework compound [(C${}_{2}$H${}_{5}$)${}_{3}$NH]${}_{2}$Cu${}_{2}$(C${}_{2}$O${}_{4}$)${}_{3}$ exhibits absence of long-range order and presence charge-neutral excitations in Mott insulating state at low temperatures. Here, authors demonstrate experimental evidence gapless spinons a field-induced soliton gap this material with aid theoretical calculations, attribute them...
In the search of topological superconductors, nailing down Fermiology normal state is as crucial a prerequisite unraveling superconducting pairing symmetry. particular, number time-reversal-invariant momenta in Brillouin zone enclosed by Fermi surfaces closely linked to class systems, and can experimentally be investigated. We report here detailed study de Haas van Alphen quantum oscillations single crystals semimetal CaSn$_{3}$ with torque magnetometry high magnetic fields up 35 T....
We consider several limiting cases of the joint probability distribution for a random matrix ensemble with an additional interaction term controlled by exponent $\gamma$ (called $\gamma$-ensembles). The effective potential, which is essentially single-particle confining potential equivalent $\gamma=1$ Muttalib-Borodin ensemble), crucial quantity defined in solution to Riemann-Hilbert problem associated $\gamma$-ensembles. It enables us numerically compute eigenvalue density...
Induced by quenched disorder, random-singlet states occur in a variety of low-dimensional spin-1/2 antiferromagnets, some them candidates for quantum spin liquids. Here we report measurements the specific heat, magnetization, and magnetic susceptibility nanocrystalline Sr21Bi8Cu2(CO3)2O41, quasi-one-dimensional antiferromagnet with alternating bonds. The results uncover predominant presence pairs this material, logarithmic probability distribution, P(J), renormalized, emergent exchange...
We report a detailed study of the specific heat and magnetic susceptibility single crystals spin liquid candidate: hyper-honeycomb Cu oxalate framework compound [(C$_2$H$_5$)$_3$NH]$_2$Cu$_2$(C$_2$O$_4$)$_3$. The shows no anomaly associated with transition at low temperatures down to $T\sim$ 180 mK in zero field. observe large linear-in-$T$ contribution $\gamma T$, = 98(1)$ mK/mol K$^{2}$, temperatures, indicative presence fermionic excitations despite Mott insulating state. low-$T$ is...
We demonstrate a method to solve general class of random matrix ensembles numerically. The is suitable for solving log-gas models with biorthogonal type two-body interactions and arbitrary potentials. reproduce standard results variety well-known show some new the Muttalib-Borodin recently introduced $γ$-ensemble which analytic are not yet available.