581 citations · 4.1k across the 55 of their papers we have counts for
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Mixed-Valence-Driven Heavy-Fermion Behavior and Superconductivity in KNiSe
James R. Neilson, Anna Llobet, Andreas V. Stier +7
Based on specific heat and magnetoresistance measurements, we report that a "heavy" electronic state exists below 20 K in KNiSe, with an increased carrier mobil…
Dimer Impurity Scattering, "Reconstructed" Nesting and Density-Wave Diagnostics in Iron Pnictides
Jian Kang, Zlatko Tesanovic
While the impurity-induced nanoscale electronic disorder has been extensively reported in the underdoped iron pnictides, its microscopic origins remain elusive. Recent scanning tun…
Friedel-like Oscillations from Interstitial Iron in Superconducting Fe1+yTe0.62Se0.38
V. Thampy, J. Kang, J. A. Rodriguez-Rivera +14
Using polarized and unpolarized neutron scattering we show that interstitial Fe in superconducting Fe_{1+y}Te_{1-x}Se_x induces a magnetic Friedel-like oscillation that diffracts a…
Theory of Valley-Density Wave and Hidden Order in Iron-Pnictides
Jian Kang, Zlatko Tesanovic
In the limit of perfect nesting, the physics of iron-pnictides is governed by the density wave formation at the zone-edge vector M. At high energies, various spin- (SDW), charge- (…
s-wave Cooper pair insulators and theory of correlated superconductors
Predrag Nikolic, Zlatko Tesanovic
The pseudogap state of cuprate high-temperature superconductors has been often viewed as either a yet unknown competing order or a precursor state to superconductivity. While await…
Robust accidental nodes and zeroes and critical quasiparticle scaling in iron-based multiband superconductors
Valentin Stanev, Boian S. Alexandrov, Predrag Nikolic +1
We study multigap superconductivity, with strong angular variations of one of the gaps, as appropriate for certain iron-based high-temperature superconductors. We solve the gap equ…
Large Theory of Superconducting Fluctuations in a Magnetic Field and its Application to Iron-Pnictides
James M. Murray, Zlatko Tesanovic
A Ginzburg-Landau approach to fluctuations of a layered superconductor in a magnetic field is used to show that the interlayer coupling can be incorporated within an interacting se…
Three-band superconductivity and the order parameter that breaks time-reversal symmetry
Valentin Stanev, Zlatko Tesanovic
We consider a model of multiband superconductivity, inspired by iron pnictides, in which three bands are connected via repulsive pair-scattering terms. Generically, three distinct…
A Criterion for the Critical Number of Fermions and Chiral Symmetry Breaking in Anisotropic QED(2+1)
A. Concha, V. Stanev, Z. Tesanovic
By analyzing the strength of a photon-fermion coupling using basic scattering processes we calculate the effect of a velocity anisotropy on the critical number of fermions at which…
Spin Gap and Resonance at the Nesting Wavevector in Superconducting FeSe0.4Te0.6
Yiming Qiu, Wei Bao, Yang Zhao +9
Neutron scattering is used to probe magnetic excitations in FeSe_{0.4}Te_{0.6} (T_c=14 K). Low energy spin fluctuations are found with a characteristic wave vector th…
Spin Fluctuation Dynamics and Multiband Superconductivity in Iron Pnictides
Valentin Stanev, Jian Kang, Zlatko Tesanovic
Multiband superconductivity, involving resonant pair scattering between different bands, has emerged as a possible explanation of some of the main characteristics of the recently d…
Valley density-wave and multiband superconductivity in Fe-pnictides
Vladimir Cvetkovic, Zlatko Tesanovic
The key feature of the Fe-based superconductors is their quasi 2D multiband Fermi surface. By relating the problem to a negative U Hubbard model and its superconducting ground stat…
The BCS-like gap in superconductor SmFeAsO_0.85F_0.15
T. Y. Chen, Z. Tesanovic, R. H. Liu +2
Since the discovery of superconductivity in the cuprates two decades ago, it has been firmly established that the CuO_2 plane is consequential for high T_C superconductivity and a…
Multiband magnetism and superconductivity in Fe-based compounds
Vladimir Cvetkovic, Zlatko Tesanovic
Recent discovery of high T_c superconductivity in Fe-based compounds may have opened a new pathway to the room temperature superconductivity. The new materials feature FeAs layers…
Restoration of the magnetic hc/e-periodicity in unconventional superconductors
Vladimir Juricic, Igor F. Herbut, Zlatko Tesanovic
We consider the energy of the filled quasiparticle's Fermi sea of a macroscopic superconducting ring threaded by an hc/2e-vortex, when the material of the ring is of an unconventio…
A model of phase fluctuations in a lattice d-wave superconductor: application to the Cooper pair charge-density-wave in underdoped cuprates
Ashot Melikyan, Zlatko Tesanovic
We introduce and study an XY-type model of thermal and quantum phase fluctuations in a two-dimensional correlated lattice d-wave superconductor based on the QED3 effective theory o…
Charge modulation, spin response, and dual Hofstadter butterfly in high-Tc cuprates
Z. Tesanovic
The modulated density of states observed in recent STM experiments in underdoped cuprates is argued to be a manifestation of the charge density wave of Cooper pairs (CPCDW). CPCDW…
Low-Temperature Specific Heat of an Extreme-Type-II Superconductor at High Magnetic Fields
A. L. Carr, J. J. Trafton, S. Dukan +1
We present a detailed study of the quasiparticle contribution to the low-temperature specific heat of an extreme type-II superconductor at high magnetic fields. Within a T-matrix a…
Interplay of disorder and magnetic field in the superconducting vortex state
J. Lages, P. D. Sacramento, Z. Tesanovic
We calculate the density of states of an inhomogeneous superconductor in a magnetic field where the positions of vortices are distributed completely at random. We consider both the…
Quantum criticality of d-wave quasiparticles and superconducting phase fluctuations
Oskar Vafek, Zlatko Tesanovic
We present finite temperature extension of the QED theory of underdoped cuprates. The theory describes nodal quasiparticles whose interactions with quantum proliferated vortex-…
Quasiparticle density of states of d-wave superconductors in a disordered vortex lattice
J. Lages, P. D. Sacramento, Z. Tesanovic
We calculate the density of states of a disordered inhomogeneous d-wave superconductor in a magnetic field. The field-induced vortices are assumed to be pinned at random positions…
Relativity Restored: Dirac Anisotropy in QED
O. Vafek, Z. Tesanovic, M. Franz
We show that at long lengthscales and low energies and to leading order in 1/N expansion, the anisotropic QED in 2+1 dimensions renormalizes to an isotropic limit. Consequently, th…
QED3 theory of pairing pseudogap in cuprates: From d-wave superconductor to antiferromagnet via "algebraic" Fermi liquid
M. Franz, Z. Tesanovic, O. Vafek
High- cuprates differ from conventional superconductors in three crucial aspects: the superconducting state descends from a strongly correlated Mott-Hubbard insulator, the ord…
Magnetic field induced charge and spin instabilities in cuprate superconductors
M. Franz, D. E. Sheehy, Z. Tesanovic
A d-wave superconductor, subject to strong phase fluctuations, is known to suffer an antiferromagnetic instability closely related to the chiral symmetry breaking in (2+1)-dimensio…