2k citations · 3.5k across the 37 of their papers we have counts for
37 papers
Phase transition and fractionalization in superconducting Kondo lattice model
Fatemeh Mohammadi, Amirhossein Saedpanah, Abolhassan Vaezi +1
Topology, symmetry, electron correlations, and the interplay between them have formed the cornerstone of our understanding of quantum materials in recent years and are used to iden…
Equatorial magnetoplasma waves
Cooper Finnigan, Mehdi Kargarian, Dmitry K. Efimkin
Due to its rotation, Earth traps a few equatorial ocean and atmospheric waves, including Kelvin, Yanai, Rossby, and Poincare modes. It has been recently demonstrated that the mathe…
Designing and topological orders in networks of Majorana bound states
Fatemeh Mohammadi, Mehdi Kargarian
Topological orders have been intrinsically identified in a class of systems such as fractional quantum Hall states and spin liquids. Accessing such states often requires extreme co…
Hybrid topological magnon-phonon modes in honeycomb and kagome lattices
Bahman Sheikhi, Mehdi Kargarian, Abdollah Langari
Magnons and phonons are two fundamental neutral excitations of magnetically ordered materials which can significantly dominate the low-energy thermal properties. In this work we st…
Topological spin-plasma waves
Dmitry K. Efimkin, Mehdi Kargarian
The surface of a topological insulator hosts Dirac electronic states with the spin-momentum locking, which constrains spin orientation perpendicular to electron momentum. As a resu…
Excitonic insulator phase and dynamics of condensate in a topological one-dimensional model
Zahra Khatibi, Roya Ahemeh, Mehdi Kargarian
We employ mean-field approximation to investigate the interplay between the nontrivial band topology and the formation of excitonic insulator (EI) in a one-dimensional chain of ato…
Effects of dynamical noises on Majorana bound states
Roya Radgohar, Mehdi Kargarian
The nonlocal nature of unpaired Majorana bound states (MBSs) in topological superconductors can be exploited to create topologically protected qubits and perform gate operations fa…
Phase diagram and thermal Hall conductivity of spin-liquid Kekulé-Kitaev model
Fatemeh Mirmojarabian, Mehdi Kargarian, Abdollah Langari
In this work we study the phase diagram of Kekulé-Kitaev model. The model is defined on a honeycomb lattice with bond dependent anisotropic exchange interactions making it exactly…
Optical Control of Chiral Charge Pumping in a Topological Weyl Semimetal
M. Mehdi Jadidi, Mehdi Kargarian, Martin Mittendorff +8
Solids with topologically robust electronic states exhibit unusual electronic and optical transport properties that do not exist in other materials. A particularly interesting exam…
Vortex bound states of charge and magnetic fluctuations-induced topological superconductors in heterostructures
Hossein Hosseinabadi, Mehdi Kargarian
The helical electron states on the surface of topological insulators or elemental Bismuth become unstable toward superconducting pairing formation when coupled to the charge or mag…
Disorder and Zeeman coupling induced gap-filling states in the nodeless chiral superconducting Bi/Ni bilayer system
Rasoul Ghadimi, Mehdi Kargarian, S. Akbar Jafari
Motivated by the recently discovered time-reversal symmetry-breaking superconductivity in epitaxial Bi/Ni bilayer system with transition temperature K and the obser…
Competing superconducting phases in interacting two-dimensional electron gas with strong Rashba spin-orbit coupling
Rasoul Ghadimi, Mehdi Kargarian, S. Akbar Jafari
In this work we study interacting electrons on square lattice in the presence of strong Rashba spin-orbit interaction. The spin-orbit term forces the time-reversal electron states…
Dynamo Effect and Turbulence in Hydrodynamic Weyl Metals
Victor Galitski, Mehdi Kargarian, Sergey Syzranov
The dynamo effect is a class of macroscopic phenomena responsible for generation and maintaining magnetic fields in astrophysical bodies. It hinges on hydrodynamic three-dimensiona…
Odd-frequency Pairing in the Edge States of Superconducting Pnictides in the Coexistence Phase with Antiferromagnetism
Cody Youmans, Areg Ghazaryan, Mehdi Kargarian +1
In several members of the pnictide materials, spin density wave order coexists with superconductivity over a range of dopings and temperature. In this paper we show that odd-freque…
Deformation and Stability of Surface States in Dirac semimetals
Mehdi Kargarian, Yuan-Ming Lu, Mohit Randeria
The unusual surface states of topological semimetals have attracted a lot of attention. Recently, we showed [PNAS 113, 8648 (2016)] that for a Dirac semimetal (DSM) arising from ba…
Anomalous low-temperature enhancement of supercurrent in topological-insulator nanoribbon Josephson junctions: evidence for low-energy Andreev bound states
Morteza Kayyalha, Mehdi Kargarian, Aleksandr Kazakov +5
We report anomalous enhancement of the critical current at low temperatures in gate-tunable Josephson junctions made from topological insulator BiSbTeSe nanoribbons with superc…
Infinite Projected Entangled-Pair State algorithm for ruby and triangle-honeycomb lattices
Saeed S. Jahromi, Roman Orus, Mehdi Kargarian +1
The infinite Projected Entangled-Pair State (iPEPS) algorithm is one of the most efficient techniques for studying the ground-state properties of two-dimensional quantum lattice Ha…
Topological spin liquids in the ruby lattice with anisotropic Kitaev interactions
Saeed S. Jahromi, Mehdi Kargarian, S. Farhad Masoudi +1
The ruby lattice is a four-valent lattice interpolating between honeycomb and triangular lattices. In this work we investigate the topological spin-liquid phases of a spin Hamilton…
Time-Reversal-Symmetry-Breaking Superconductivity in Epitaxial Bismuth/Nickel Bilayers
Xinxin Gong, Mehdi Kargarian, Alex Stern +6
Superconductivity that spontaneously breaks time-reversal symmetry (TRS) has been found, so far, only in a handful of 3D crystals with bulk inversion symmetry. Here we report an ob…
Amperean Pairing at the Surface of Topological Insulators
Mehdi Kargarian, Dmitry K. Efimkin, Victor Galitski
The surface of a 3D topological insulator is described by a helical electron state with the electron's spin and momentum locked together. We show that in the presence of ferromagne…
Are the double Fermi arcs of Dirac semimetals topologically protected?
Mehdi Kargarian, Mohit Randeria, Yuan-Ming Lu
Motivated by recent experiments probing anomalous surface states of Dirac semimetals (DSMs) NaBi and CdAs, we raise the question posed in the title. We find that, in ma…
Theory of Kerr and Faraday rotations and linear dichroism in Topological Weyl Semimetals
Mehdi Kargarian, Mohit Randeria, Nandini Trivedi
We consider the electromagnetic response of a topological Weyl semimetal (TWS) with a pair of Weyl nodes in the bulk and corresponding Fermi arcs in the surface Brillouin zone. We…
Heterointerface engineered electronic and magnetic phases of NdNiO3 thin films
Jian Liu, Mehdi Kargarian, Mikhail Kareev +10
Mott physics is characterized by an interaction-driven metal-to-insulator transition in a partially filled band. In the resulting insulating state, antiferromagnetic orders of the…
Multi-orbital Effects on Thermoelectric Properties of Strongly Correlated Materials
Mehdi Kargarian, Gregory A. Fiete
The effects of electronic correlations and orbital degeneracy on thermoelectric properties are studied within the context of multi-orbital Hubbard models on different lattices. We…