Impurity-induced states on the surface of 3D topological insulators (2009)
Biswas, Rudro R., Balatsky, Alexander V.
We present a calculation of the modulation in the Local Density Of electronic States (LDOS) caused by a local impurity on the surface of a 3D Topological Insulator. We find that the LDOS around the...
Cooling mechanisms in molecular conduction junctions (2009)
Galperin, Michael, Saito, Keiji, Balatsky, Alexander V., Nitzan, Abraham
While heating of a current carrying Ohmic conductors is an obvious consequence of the diffusive nature of the conduction in such systems, current induced cooling has been recently reported in some...
Balatsky, Alexander V., Lee, W. S., Shen, Z. X.
Superconducting excitations -- Bogoliubov quasiparticles -- are the quantum mechanical mixture of negatively charged electron (-e) and positively charged hole (+e). We propose a new observable for...
Topological spin-current in non-centrosymmetric superconductors (2008)
Tanaka, Yukio, Yokoyama, Takehito, Balatsky, Alexander V., Nagaosa, Naoto
We study the spin transport properties of the non-centrosymmetric superconductor with time-reversal-symmetry where spin-triplet $(p_{x} \pm i p_{y})$-wave and spin-singlet s-wave pair potential can...
Odd-frequency pairing in a binary mixture of bosonic and fermionic cold atoms (2008)
Kalas, Ryan M., Balatsky, Alexander V., Mozyrsky, Dmitry
We study fermionic superfluidity in a boson-single-species-fermion cold atom mixture. We argue that apart from the standard p-wave fermion pairing mediated by the phonon field of the boson gas, the...
Bogoliubov angle and visualization of particle-hole mixture in superconductors (2007)
Fujita, K., Grigorenko, Ilya, Lee, J., Wang, M., Zhu, Jian Xin, Davis, J. C., ...
Superconducting excitations --Bogoliubov quasiparticles -- are the quantum mechanical mixture of negatively charged electron (-e) and positively charged hole (+e). Depending on the applied voltage...
Cracking the Supersolid (2007)
Phillips, Philip, Balatsky, Alexander V.
We prepresent an overview of the status of experiment and theory on the supersolid state of matter.
Absence of Wigner Crystallization in Graphene (2006)
Dahal, Hari P, Joglekar, Yogesh N., Bedell, Kevin S., Balatsky, Alexander V.
Graphene, a single sheet of graphite, has attracted tremendous attention due to recent experiments which demonstrate that carriers in it are described by massless fermions with linear dispersion. In...
Wigner supersolid of excitons in electron-hole bilayers (2006)
Joglekar, Yogesh N., Balatsky, Alexander V., Sarma, S. Das
Bilayer electron-hole systems, where carriers in one layer are electrons and carriers in the other are holes, have been actively investigated in recent years with the focus on Bose-Einstein...
Dynamical magneto-electric coupling in helical magnets (2006)
Katsura, Hosho, Balatsky, Alexander V., Nagaosa, Naoto
Collective mode dynamics of the helical magnets coupled to electric polarization via spin-orbit interaction is studied theoretically. The soft modes associated with the ferroelectricity are not the...
Effect of impurities on supersolid condensate: a Ginzburg-Landau approach (2006)
Balatsky, Alexander V., Abrahams, Elihu
Basing our arguments on a wave function that contains both positional and superfluid order, we propose a Ginzburg-Landau functional for a supersolid with the two order parameters necessary to...
Katsura, Hosho, Balatsky, Alexander V., Nussinov, Zohar, Nagaosa, Naoto
We present a theory of Landau-Lifshitz-Gilbert damping $\alpha$ for a localized spin ${\vec S}$ in the junction coupled to the conduction electrons in both leads under an applied volatege $V$. We...
Theory of Knight Shift and Spin-Lattice Relaxation Rates of Pu-115 (2005)
Bang, Yunkyu, Graf, Matthias J., Curro, Nicholas J., Balatsky, Alexander V.
We calculated the Knight shift and spin-lattice relaxation rates of Pu-115 compounds assuming d-wave superconductivity in the presence of strong impurity scattering. We discuss the implications for...
Excitonic condensate and quasiparticle transport in electron-hole bilayer systems (2005)
Joglekar, Yogesh N., Balatsky, Alexander V., Lilly, Michael P.
Bilayer electron-hole systems undergo excitonic condensation when the distance d between the layers is smaller than the typical distance between particles within a layer. All excitons in this...
Density and spin response functions in ultracold fermionic atom gases (2005)
Mihaila, Bogdan, Gaudio, Sergio, Blagoev, Krastan B., Balatsky, Alexander V., Littlewood, Peter B., Smith, Darryl L.
We propose a new method of detecting the onset of superfluidity in a two-component ultracold fermionic gas of atoms governed by an attractive short-range interaction. By studying the two-body...
Spin and Spin-Wave Dynamics in Josephson Junctions (2004)
Nussinov, Zohar, Shnirman, Alexander, Arovas, Daniel P., Balatsky, Alexander V., Zhu, Jian-Xin
We extend the Keldysh formulation to quantum spin systems and derive exact equations of motion. This allows us to explore the dynamics of single spins and of ferromagnets when these are inserted...
Spin current and magneto-electric effect in non-collinear magnets (2004)
Katsura, Hosho, Nagaosa, Naoto, Balatsky, Alexander V.
A new microscopic mechanism of the magneto-electric (ME) effect based on the spin supercurrent is theoretically presented for non-collinear magnets. The close analogy between the superconductors...
Non-uniform glassy electronic phases from competing local orders (2004)
Nussinov, Zohar, Vekhter, Ilya, Balatsky, Alexander V.
We study non-uniform states and possible glassiness triggered by a competition between distinct local orders in disorder free systems. Both in Ginzburg-Landau theories and in simple field theories,...
Dipolar superfluidity in electron-hole bilayer systems (2004)
Balatsky, Alexander V., Joglekar, Yogesh N., Littlewood, Peter B.
Bilayer electron-hole systems, where the electrons and holes are created via doping and confined to separate layers, undergo excitonic condensation when the distance between the layers is smaller...
Noise spectroscopy and interlayer phase-coherence in bilayer quantum Hall systems (2003)
Joglekar, Yogesh N., Balatsky, Alexander V., MacDonald, Allan H.
Bilayer quantum Hall systems develop strong interlayer phase-coherence when the distance between layers is comparable to the typical distance between electrons within a layer. The phase-coherent...
Novel Spin Dynamics in a Josephson Junction (2003)
Zhu, Jian-Xin, Nussinov, Zohar, Shnirman, Alexander, Balatsky, Alexander V.
We address the dynamics of a single spin embedded in the tunneling barrier between two superconductors. As a consequence of pair correlations in the superconducting state, the spin displays a rich...
Erratum: Nodal Cooper-pair stabilized phase dynamics in granular d-wave superconductors (2003)
Joglekar, Yogesh N., Neto, A. H. Castro, Balatsky, Alexander V.
Recently, we discovered a mistake in our Letter on phase dynamics in granular d-wave superconductors, which we corrected in an Erratum published last week. This is an expanded version of the Erratum,...
Electronic Structure near Impurities in the Chains of YBa$_2$Cu$_3$O$_{6+x}$ (2001)
Morr, Dirk K., Balatsky, Alexander V.
We study the electronic structure near impurities in the one-dimensional chains of YBa$_2$Cu$_3$O$_{6+x}$. Assuming chain superconductivity below $T_c$ due to a proximity coupling, we show that only...
STM measurement of single spin relaxation time in superconductors (2001)
Smakov, Jurij, Martin, Ivar, Balatsky, Alexander V.
Localized spin states in conventional superconductors at low temperatures are expected to have long decoherence time due to the strong suppression of spin relaxation channels. We propose a scanning...
Doping induced inhomogeneity in high-Tc superconductors (2000)
Martin, Ivar, Balatsky, Alexander V.
Doping and disorder are inseparable in the superconducting cuprates. Assuming the simplest possible disordered doping, we construct a semiphenomenological model and analyze its experimental...
Josephson scanning tunneling microscopy (2000)
Smakov, Jurij, Martin, Ivar, Balatsky, Alexander V.
We propose a set of scanning tunneling microscopy experiments in which the surface of superconductor is scanned by a superconducting tip. Potential capabilities of such experimental setup are...
Proximity Effects and Quantum Dissipation in the Chains of YBa$_2$Cu$_3$O$_{6+x} (2000)
Morr, Dirk K., Balatsky, Alexander V.
We argue that the results of recent scanning tunneling microscopy, angle-resolved photoemission and infrared spectroscopy experiments on the CuO chains of YBa$_2$Cu$_3$O$_{6+x}$ are consistently...
Visualizing the particle-hole dualism in high-temperature superconductors (2000)
Martin, Ivar, Balatsky, Alexander V.
Recent Scanning Tunneling Microscope (STM) experiments offer a unique insight into the inner workings of the superconducting state of high-Tc superconductors. Deliberately placed inside the material...