Publications (33)
Zero-Field Quantum Critical Point in CeYbCoIn
Y. P. Singh, R. B. Adhikari, D. J. Haney +4
We present results of specific heat, electrical resistance, and magnetoresistivity measurements on single crystals of the heavy-fermion superconducting alloy CeYb…
Spectroscopic signatures of nonequilibrium pairing in atomic Fermi gases
M. Dzero, E. A. Yuzbashyan, B. L. Altshuler +1
We determine the radio-frequency (RF) spectra for non-stationary states of a fermionic condensate produced by a rapid switch of the scattering length. The RF spectrum of the nonequ…
Electron Cotunneling into a Kondo Lattice
Marianna Maltseva, M. Dzero, P. Coleman
Motivated by recent experimental interest in tunneling into heavy electron materials, we present a theory for electron tunneling into a Kondo lattice. The passage of an electron in…
Short-range antiferromagnetic correlations in the superconducting state of filled skutterudite alloys PrEuPtGe
R. B. Adhikari, D. L. Kunwar, I. Jeon +3
Motivated by current research efforts towards exploring the interplay between magnetism and superconductivity in multiband electronic systems, we have investigated the effects of E…
Magnetic penetration depth in disordered iron-based superconductors
M. Dzero, M. Khodas, A. D. Klironomos +2
We study the effect of disorder on the London penetration depth in iron-based superconductors. The theory is based on a two-band model with quasi-two-dimensional Fermi surfaces, wh…
Phase diagram for the trapped p-wave fermionic superfluid with population imbalance
A. A. Kirmani, K. Quader, M. Dzero
We consider the problem of spin-triplet p-wave superfluid pairing with total spin projection in atomic Fermi gas across the Feshbach resonance. We allow for imbalanced popu…
Pressure studies of the quantum critical alloy Ce(0.93)Yb(0.07)CoIn5
Y. P. Singh, D. J. Haney, Xinyi Huang +4
Here we present our experimental and theoretical study of the effects of pressure on the transport properties of the heavy-fermion alloy Ce(1-x)Yb(x)CoIn5 with x~0.07. We specifica…
Non-Fermi liquid behavior with and without quantum criticality in Ce(1-x)Yb(x)CoIn(5)
T. Hu, Y. P. Singh, L. Shu +4
One of the greatest challenges to Landau's Fermi liquid theory - the standard theory of metals - is presented by complex materials with strong electronic correlations. In these mat…
From local moment to mixed-valence regime in Ce(1-x)Yb(x)CoIn5 alloys
Y. P. Singh, D. J. Haney, X. Y. Huang +5
We investigated the onset of the many-body coherence in the f-orbital single crystalline alloys Ce(1-x)Yb(x)CoIn5 through thermodynamic and magneto-transport measurements. Our stud…
Even-odd effects in magnetoresistance of ferromagnetic domain walls
M. Dzero, L. P. Gor'kov, A. K. Zvezdin +1
Difference in density of states for the spin's majority and minority bands in a ferromagnet changes the electrostatic potential along the domains, introducing the discontinuities o…
Superconductivity due to co-operative Kondo effect in Pu 115's
M. Dzero, P. Coleman
We outline key elements of a theory that accounts for anomalous properties of the PuCoGa and PuRhGa compounds as a consequence of a two-body interference between two Kondo…
Crystal-field effects in the first-order valence transition in YbInCu4 induced by an external magnetic field
M. Dzero
As it was shown earlier [Dzero, Gor'kov, and Zvezdin, J. Phys.:Condens. Matter 12, L711 (2000)] the properties of the first-order valence phase transition in YbInCu4 in the wide ra…
Breakup of a Stoner model for the 2D ferromagnetic quantum critical point
M. Dzero, L. P. Gor'kov
Re-interpretation of the results by [A. V. Chubukov et. al., Phys. Rev. Lett. 90, 077002 (2003)] leads to the conclusion that ferromagnetic quantum critical point (FQCP) cannot be…
Vanishing RKKY interactions in Ce-based cage compounds
A. M. Konic, Y. Zhu, A. J. Breindel +5
We report the results of thermodynamic measurements in external magnetic field of the cubic Ce-based cage compounds CeCd ( = Ni,Pd). Our analysis of the heat-capac…
Heavy electrons and the symplectic symmetry of spin
Rebecca Flint, M. Dzero, P. Coleman
The recent discovery of two heavy fermion materials PuCoGa_{5} and NpPd_{5}Al_{2} which transform directly from Curie paramagnets into superconductors, reveals a new class of super…
Universality and unconventional enhancement of flux-flow resistivity in Ba(FeCo)As
Xinyi Huang, D. J. Haney, Y. P. Singh +5
Measurements of the current-voltage characteristics were performed on Ba(FeCo)As single crystals with doping level . An unconventional in…
Strong magnetic fluctuations in superconducting state of CeCoIn
T. Hu, H. Xiao, T. A. Sayles +3
We show results on the vortex core dissipation through current-voltage measurements under applied pressure and magnetic field in the superconducting phase of CeCoIn. We find th…
Anomalous Hall Effect on the surface of topological Kondo insulators
E. J. König, P. M. Ostrovsky, M. Dzero +1
We calculate the anomalous Hall conductivity of the surface states {in cubic topological Kondo insulators}. We consider a generic model for the surface states with three…
Cooper pair turbulence in atomic Fermi gases
M. Dzero, E. A. Yuzbashyan, B. L. Altshuler
We investigate the stability of spatially uniform solutions for the collisionless dynamics of a fermionic superfluid. We demonstrate that, if the system size is larger than the sup…
Relationship between critical current and flux-flow resistivity in the mixed state of Ba(FeCo)As
Xinyi Huang, Y. P. Singh, D. J. Haney +6
We studied the temperature and magnetic field dependence of vortex dissipation and critical current in the mixed-state of unconventional superconducting alloys Ba(FeCo)…
Quantum criticality in CeSmCoIn
D. L. Kunwar, R. B. Adhikari, N. Pouse +3
Motivated by the possibility of observing the co-existence between magnetism and unconventional superconductivity in heavy-fermion CeSmCoIn alloys, we studied how t…
Heat capacity of URuOsSi at low temperatures
D. L. Kunwar, S. R. Panday, Y. Deng +5
We perform measurements of the heat capacity as a function of temperature in URuOsSi alloys. Our experimental results show that the critical temperature of the seco…
On magnetoconductivity of metallic manganite phases and heterostructures
M. Dzero, L. P. Gor'kov, V. Z. Kresin
We use the double exchange (DE) model via degenerate orbitals and tight-binding approximation to study the magnetoconductivity of a canted A-phase of pseudo-cubic manganites. It is…
Supplementary material to Heavy electrons and the symplectic symmetry of spin
Rebecca Flint, M. Dzero, P. Coleman
This online material provides the technical detail for ``Heavy electrons and the symplectic symmetry of spin",(arXiv 0710.1122). Three parts. Part I - symplectic spins, their prope…
Quantum criticality and superconducting pairing in Ce(1-x)Yb(x)CoIn5 alloys
Y. P. Singh, D. J. Haney, I. K. Lum +4
In this paper we review some of our recent experimental and theoretical results on transport and thermodynamic properties of heavy-fermion alloys Ce(1-x)Yb(x)CoIn5. Charge transpor…
Evolution of non-Kramers Doublets in Magnetic Field PrNiCd and PrPdCd
A. M. Konic, R. B. Adhikari, D. L. Kunwar +6
Praseodymium-based 1-2-20 cage compounds Pr ( is generally Ti, V, Nb, Ru, Rh, Ir; and is either Al, Zn or Cd) provide yet another platform to study non-trivial el…
Multiband superconductivity in the correlated electron filled skutterudite system Pr(1-x)Ce(x)Pt4Ge12
Y. P. Singh, R. B. Adhikari, S. Zhang +6
Studies of superconductivity in multiband correlated electronic systems has become one of the central topics in condensed matter/materials physics. In this paper, we present the re…
Orbital and Pauli limiting effects in heavily doped BaKFeAs
Shuai Zhang, Y. P. Singh, X. Y. Huang +3
We investigated the thermodynamic properties of the Fe-based lightly disordered superconductor BaKFeAs in external magnetic field H applied along the FeAs…
Schottky anomaly and short-range antiferromagnetic correlations in filled skutterudites PrEuPtGe
R. B. Adhikari, P. Shen, D. L. Kunwar +4
By performing a series of thermodynamic measurements in an applied magnetic field , we investigated the effects of Eu substitution on the Pr sites in filled skutt…
Kondo-induced giant isotropic negative thermal expansion
D. G. Mazzone, M. Dzero, M. Abeykoon +9
Negative thermal expansion is an unusual phenomenon appearing in only a handful of materials, but pursuit and mastery of the phenomenon holds great promise for applications across…
Kondo insulator SmB6 under strain: surface dominated conduction near room temperature
A. Stern, M. Dzero, V. M. Galitski +2
SmB6 is a strongly correlated mixed-valence Kondo insulator with a newly discovered surface state, proposed to be of non-trivial topological origin. However, the surface state domi…
Gyrotropic Hall effect in Berry-curved materials
E. J. König, M. Dzero, A. Levchenko +1
We study the ac Hall response induced by passage of dc transport current in two- and three-dimensional metals with gyrotropic point groups -- the gyrotropic Hall effect -- and cons…
Quantum critical end point of the Kondo volume collapse
M. Dzero, M. R. Norman, I. Paul +2
The Kondo volume collapse describes valence transitions in f-electron metals, and is characterized by a line of first order transitions in the pressure-temperature phase plane term…