16 citations · 61 across the 13 of their papers we have counts for
13 papers
Quantum selection of order and dynamic properties of Kitaev-Heisenberg ferromagnet on a triangular lattice
Kaushal K. Kesharpu, Pavel A. Maksimov
Recent interest in monolayer materials motivated a search for two-dimensional ferromagnets with sizable spin-orbit coupling. Magnetic anisotropy of exchange Hamiltonian, induced by…
Re-entrant topological order in strongly correlated nanowire due to Rashba spin-orbit coupling
Kaushal Kumar Kesharpu, Evgenii A. Kochetov, Alvaro Ferraz
The effect of the Rashba spin orbit coupling (RSOC) on the topological properties of the one-dimensional (1D) extended -wave superconducting Hamiltonian, in the presence of stro…
A method to treat strongly correlated topological superconductors in one and two dimensions
Kaushal Kumar Kesharpu, Evgenii A. Kochetov, Alvaro Ferraz
In the strong electron-electron (e-e) interaction limit each atomic site is constrained to be either empty or singly occupied. One can treat this scenario by fractionalizing the el…
A proposal for realizing Majorana fermions without external magnetic field in strongly correlated nanowires
Kaushal Kumar Kesharpu, Evgenii A. Kochetov, Alvaro Ferraz
We show that one dimensional (1D) topological superconductivity can be placed in the context of phenomena associated with strongly correlated electron systems. Here we propose a sy…
Factors affecting the topological Hall effect in strongly correlated layered magnets: spin of the magnetic atoms, polar and azimuthal angle subtended by the spin texture
Kaushal Kumar Kesharpu
The Hamiltonian of a two dimensional (2D) magnetic material in the strong correlation regime with a spin texture, for which both azimuthal and polar angle changes, is solved using…
Topological Hall effect induced by classical large-spin background: path-integral approach
Kaushal K. Kesharpu, Evgenii A. Kochetov, Alvaro Ferraz
The coherent-state path-integral technique is employed to study lattice electrons strongly coupled to a quantum spin background. In the large-spin limit it is replaced with…
Spin-flip induced superfluidity in a ring of spinful hard-core bosons
K. K. Kesharpu, E. A. Kochetov
The t - J Hamiltonian of the spinful hard-core bosonic ring in the Nagaoka limit is solved. The energy spectrum becomes quantized due to presence of spin, where each energy level c…
Evolution of shape and volume fraction of superconducting domains with temperature and anion disorder in (TMTSF)ClO
Kaushal K. Kesharpu, Vladislav D. Kochev, Pavel D. Grigoriev
In highly anisotropic organic superconductor (TMTSF)ClO, superconducting (SC) phase coexists with metallic and spin density wave phases in the form of domains. Using the Ma…
Anisotropic zero-resistance onset in organic superconductors
Vladislav D. Kochev, Kaushal K. Kesharpu, Pavel D. Grigoriev
We study the coexistence of superconductivity (SC) and density-wave state and reconcile various puzzling experimental data in organic superconductors (TMTSF)PF and (TMT…
The evolution of electron dispersion in the series of rare-earth tritelluride compounds obtained from their charge-density-wave properties and susceptibility calculations
Pavel A. Vorobyev, Pavel D. Grigoriev, Kaushal K. Kesharpu +1
We calculated electron susceptibility of rare-earth tritelluride compounds RTe as a function of temperature, wave vector and electron-dispersion parameters. Comparison of resul…
Temperature dependence of resistivity at the transition to a charge density wave state in rare-earth tritellurides
Kaushal Kumar Kesharpu, Pavel Dmitrievich Grigoriev
About a half of the Fermi surface in rare-earth tritellurides RT e3 becomes gapped below the transition to a charge-density-wave (CDW) state, as revealed by ARPES data. However, th…
Self-consistent and Maxwell approximations to describe the excess conductivity anisotropy in FeSe above superconducting transition temperature
Kaushal K. Kesharpu, Pavel D. Grigoriev, Darya I. Lazeva +1
Using the self-consistent approximation we calculate conductivity in an anisotropic heterogeneous media with superconducting inclusions and compare the results with those obtained…
Conductivity of anisotropic inhomogeneous superconductors above critical temperature
S. S. Seidov, K. K. Kesharpu, P. I. Karpov +1
We propose a model and derive analytical expressions for conductivity in heterogeneous fully anisotropic conductors with ellipsoid superconducting inclusions. This model and calcul…