Acbas, G., Cukr, M., Novak, V., Scarpulla, M. A., Dubon, O. D., ...
We employ Faraday and Kerr effect spectroscopy in the infrared range to investigate the electronic structure of Ga1-xMnxAs near the Fermi energy. The band structure of this archetypical dilute-moment...
Control of Josephson current by Aharonov-Casher Phase in a Rashba Ring (2009)
Liu, Xin, Borunda, M. F., Liu, Xiong-Jun, Sinova, Jairo
We study the interference effect induced by the Aharonov-Casher phase on the Josephson current through a semiconducting ring attached to superconducting leads. Using a 1D model that incorporates...
Microscopic mechanism of the non-crystalline anisotropic magnetoresistance in (Ga,Mn)As (2009)
Výborný, Karel, Kucera, Jan, Sinova, Jairo, Rushforth, A. W., Gallagher, B. L., Jungwirth, T.
Starting with a microscopic model based on the Kohn-Luttinger Hamiltonian and kinetic p-d exchange combined with Boltzmann formula for conductivity we identify the scattering from magnetic Mn...
Nagaosa, Naoto, Sinova, Jairo, Onoda, Shigeki, MacDonald, A. H., Ong, N. P.
We present a review of experimental and theoretical studies of the anomalous Hall effect (AHE), focusing on recent developments that have provided a more complete framework for understanding this...
Kovalev, Alexey A., Tserkovnyak, Yaroslav, Vyborny, Karel, Sinova, Jairo
We present a study of transport in multiple-band non-interacting Fermi metallic systems based on the Keldysh formalism, taking into account the effects of Berry curvature due to spin-orbit coupling....
Theory of Weak Localization in Ferromagnetic (Ga,Mn)As (2008)
Garate, Ion, Sinova, Jairo, Jungwirth, T., MacDonald, A. H.
We study quantum interference corrections to the conductivity in (Ga,Mn)As ferromagnetic semiconductors using a model with disordered valence band holes coupled to localized Mn moments through a p-d...
Spin-injection Hall effect in a planar photovoltaic cell (2008)
Wunderlich, J., Irvine, A. C., Sinova, Jairo, Park, B. G., Xu, X. L., Kaestner, B., ...
Successful incorporation of the spin degree of freedom in semiconductor technology requires the development of a new paradigm allowing for a scalable, non-destructive electrical detection of the...
Semiclassical framework for the calculation of transport anisotropies (2008)
Vyborny, Karel, Kovalev, Alexey A., Sinova, Jairo, Jungwirth, T.
We present a procedure for finding the exact solution to the linear-response Boltzmann equation for two-dimensional anisotropic systems and demonstrate it on examples of non-crystalline anisotropic...
Borunda, M. F., Liu, Xin, Kovalev, Alexey A., Liu, Xiong-Jun, Jungwirth, T., Sinova, Jairo
We study the quantum interference effects induced by the Aharonov-Casher phase in asymmetrically confined two-dimensional electron and heavy-hole ring structures systems taking into account the...
Effect of Induced Spin-Orbit Coupling for Atoms via Laser Fields (2008)
Liu, Xiong-Jun, Borunda, Mario F., Liu, Xin, Sinova, Jairo
We propose an experimental scheme to study spin-orbit coupling effects in a of two-dimensional (2D) Fermi atomic gas cloud by coupling its internal electronic states (pseudospins) to radiation in a...
Curie point singularity in the temperature derivative of resistivity in (Ga,Mn)As (2008)
Novak, V., Olejnik, K., Wunderlich, J., Cukr, M., Vyborny, K., Rushforth, A. W., ...
We observe a singularity in the temperature derivative $d\rho/dT$ of resistivity at the Curie point of high-quality (Ga,Mn)As ferromagnetic semiconductors with $T_c$'s ranging from approximately 80...
Kovalev, Alexey A., Výborný, Karel, Sinova, Jairo
We present the analytical description of the anomalous Hall effect (AHE) in a 2DEG ferromagnet within the Keldysh formalism. These results unify all three linear response approaches to anomalous Hall...
The Origin and Control of the Sources of AMR in (Ga,Mn)As Devices (2007)
Rushforth, A. W., Výborný, K., King, C. S., Edmonds, K. W., Campion, R. P., Foxon, C. T., ...
We present details of our experimental and theoretical study of the components of the anisotropic magnetoresistance (AMR) in (Ga,Mn)As. We develop experimental methods to yield directly the...
Anomalous Hall effect in a two-dimensional electron gas (2007)
Nunner, Tamara S., Sinitsyn, N. A., Borunda, Mario F., Dugaev, V. K., Kovalev, A. A., Abanov, Ar., ...
The anomalous Hall effect in a magnetic two-dimensional electron gas with Rashba spin-orbit coupling is studied within the Kubo-Streda formalism in the presence of pointlike potential impurities. We...
Nanomechanical Spin-Polarizer (2007)
Kovalev, Alexey A., Zârbo, Liviu P., Tserkovnyak, Y., Bauer, G. E. W., Sinova, Jairo
Torsional oscillations of a free-standing semiconductor beam are shown to cause spin-dependent oscillating potentials that spin-polarize an applied charge current in the presence of intentional or...
Lee, Wei-Cheng, Sinova, Jairo, Burkov, A. A., Joglekar, Yogesh, MacDonald, A. H.
The critical temperature of an underdoped cuprate superconductor is limited by its phase stiffness $\rho$. In this Letter we argue that the dependence of $\rho$ on doping $x$ should be understood as...
Wunderlich, J., Irvine, A. C., Zemen, J., Holy, V., Rushforth, A. W., De Ranieri, E., ...
The large saturation magnetization in conventional dense moment ferromagnets offers flexible means of manipulating the ordered state through demagnetizing shape anisotropy fields but these dipolar...
Jungwirth, T., Sinova, Jairo, MacDonald, A. H., Gallagher, B. L., Novak, V., Edmonds, K. W., ...
We discuss the character of states near the Fermi level in Mn doped GaAs, as revealed by a survey of dc transport and optical studies over a wide range of Mn concentrations. A thermally activated...
Anomalous Hall effect in a two-dimensional electron gas (2007)
Nunner, Tamara S., Sinitsyn, N. A., Borunda, Mario F., Kovalev, A. A., Abanov, Ar., Timm, Carsten, ...
The anomalous Hall effect in a magnetic two-dimensional electron gas with Rashba spin-orbit coupling is studied within the Kubo-Streda formalism in the presence of pointlike potential impurities. We...
Functional Keldysh Theory of Spin Torques (2007)
Duine, R. A., Nunez, A. S., Sinova, Jairo, MacDonald, A. H.
We present a microscopic treatment of current-induced torques and thermal fluctuations in itinerant ferromagnets based on a functional formulation of the Keldysh formalism. We find that the...
Anisotropic Magnetoresistance components in (Ga,Mn)As (2007)
Rushforth, A. W., Výborný, K., King, C. S., Edmonds, K. W., Campion, R. P., Foxon, C. T., ...
Our experimental and theoretical study of the non-crystalline and crystalline components of the anisotropic magnetoresistance (AMR) in (Ga,Mn)As is aimed at exploring the basic physical aspects of...
Borunda, Mario F., Nunner, Tamara S., Luck, Thomas, Sinitsyn, N. A., Timm, Carsten, Wunderlich, J., ...
We study the anomalous Hall conductivity in spin-polarized, asymmetrically confined two-dimensional electron and hole systems, focusing on skew-scattering contributions to the transport. We find that...
Aharonov-Casher effect in a two dimensional hole gas with spin-orbit interaction (2007)
Kovalev, Alexey A., Borunda, Mario F., Jungwirth, T., Molenkamp, L. W., Sinova, Jairo
We study the quantum interference effects induced by the Aharonov-Casher phase in a ring structure in a two-dimensional heavy hole (HH) system with spin-orbit interaction realizable in narrow...
Mn-doped Ga(As,P) and (Al,Ga)As ferromagnetic semiconductors (2006)
Masek, J., Kudrnovsky, J., Maca, F., Sinova, Jairo, MacDonald, A. H., Campion, R. P., ...
A remarkable progress towards functional ferromagnetic semiconductor materials for spintronics has been achieved in p-type (Ga,Mn)As. Robust hole-mediated ferromagnetism has, however, been observed...
Sinitsyn, N. A., MacDonald, A. H., Jungwirth, T., Dugaev, V. K., Sinova, Jairo
The anomalous Hall effect (AHE) is a consequence of spin-orbit coupling in a ferromagnetic metal and is related primarily to density-matrix response to an electric field that is off-diagonal in band...
Theory of ferromagnetic (III,Mn)V semiconductors (2006)
Jungwirth, T., Sinova, Jairo, Masek, J., Kucera, J., MacDonald, A. H.
The body of research on (III,Mn)V diluted magnetic semiconductors initiated during the 1990's has concentrated on three major fronts: i) the microscopic origins and fundamental physics of the...
Charge and spin Hall conductivity in metallic graphene (2006)
Sinitsyn, N. A., Hill, J. E., Min, Hongki, Sinova, Jairo, MacDonald, A. H.
Graphene has an unusual low-energy band structure with four chiral bands and half-quantized and quantized Hall effects that have recently attracted theoretical and experimental attention. We study...
Spin-Hall effect: Back to the Beginning on a Higher Level (2005)
Sinova, Jairo, Murakami, Shuichi, Shen, Shun-Qing, Choi, Mahn-Soo
The phenomena of the spin-Hall effect, initially proposed over three decades ago in the context of asymmetric Mott skew scattering, was revived recently by the proposal of a possible intrinsic...
Sherman, E. Ya., Sinova, Jairo
We investigate the spin dynamics and relaxation in remotely-doped two dimensional electron systems where the dopants lead to random fluctuations of the Rashba spin-orbit coupling. Due to the...
Edge spin accumulation in semiconductor two-dimensional hole gases (2005)
Nomura, K., Wunderlich, J., Sinova, Jairo, Kaestner, B., MacDonald, A. H., Jungwirth, T.
The controlled generation of localized spin densities is a key enabler of semiconductor spintronics In this work, we study spin Hall effect induced edge spin accumulation in a two-dimensional hole...
Direct observation of the Aharonov-Casher phase (2005)
Koenig, M., Tschetschetkin, A., Hankiewicz, E. M., Sinova, Jairo, Hock, V., Daumer, V., ...
Ring structures fabricated from HgTe/HgCdTe quantum wells have been used to study Aharonov-Bohm type conductance oscillations as a function of Rashba spin-orbit splitting strength. We observe...
Low-temperature magnetization of (Ga,Mn)As semiconductors (2005)
Jungwirth, T., Masek, J., Wang, K. Y., Edmonds, K. W., Sawicki, M., Polini, M., ...
We report on a comprehensive study of the ferromagnetic moment per Mn atom in (Ga,Mn)As ferromagnetic semiconductors. Theoretical discussion is based on microscopic calculations and on an effective...
Co-planar spin-polarized light emitting diode (2005)
Kaestner, B., Wunderlich, J., Sinova, Jairo, Jungwirth, T.
Studies of spin manipulation in semiconductors has benefited from the possibility to grow these materials in high quality on top of optically active III-V systems. The induced electroluminescence in...
Dependence of the intrinsic spin Hall effect on spin-orbit interaction character (2005)
Nomura, K., Sinova, Jairo, Sinitsyn, N. A., MacDonald, A. H.
We report on a comparative numerical study of the spin Hall conductivity in two-dimensions for three different spin-orbit interaction models; the standard k-linear Rashba model, the k-cubic Rashba...
Hankiewicz, E. M., Li, Jian, Jungwirth, Tomas, Niu, Qian, Shen, Shun-Qing, Sinova, Jairo
We study theoretically the spin-Hall effect as well as its reciprocal phenomenon (a transverse charge current driven by a spin-dependent chemical potential gradient) in electron and hole finite size...
Prospects of high temperature ferromagnetism in (Ga,Mn)As semiconductors (2005)
Jungwirth, T., Wang, K. Y., Masek, J., Edmonds, K. W., Konig, Jurgen, Sinova, Jairo, ...
We report on a comprehensive combined experimental and theoretical study of Curie temperature trends in (Ga,Mn)As ferromagnetic semiconductors. Broad agreement between theoretical expectations and...
Disorder effects in the AHE induced by Berry curvature (2005)
Sinitsyn, N. A., Niu, Qian, Sinova, Jairo, Nomura, K.
We describe the charge transport in ferromagnets with spin orbit coupled Bloch bands by combining the wave-packet evolution equations with the classical Boltzmann equation. This approach can be...
Can Non-Equilibrium Spin Hall Accumulation be Induced in Ballistic Nanostructures? (2004)
Nikolic, Branislav K., Souma, Satofumi, Zarbo, Liviu P., Sinova, Jairo
We demonstrate that flow of longitudinal unpolarized current through a ballistic two-dimensional electron gas with Rashba spin-orbit coupling will induce nonequilibrium spin accumulation which has...
Wunderlich, Joerg, Kaestner, Bernd, Sinova, Jairo, Jungwirth, Tomas
We report the experimental observation of the spin-Hall effect in a two-dimensional (2D) hole system with Rashba spin-orbit coupling. The 2D hole layer is a part of a p-n junction light-emitting...
Manifestation of the spin-Hall effect through transport measurements in the mesoscopic regime (2004)
Hankiewicz, E. M., Molenkamp, L. W., Jungwirth, T., Sinova, Jairo
We study theoretically the manifestation of the spin-Hall effect in a two-dimensional electronic system with Rashba spin-orbit coupling via dc-transport measurements in realistic mesoscopic H-shape...
Non-vanishing spin Hall currents in disordered spin-orbit coupling systems (2004)
Nomura, K., Sinova, Jairo, Jungwirth, T., Niu, Q., MacDonald, A. H.
Spin currents that flow perpendicular to the electric field direction are generic in metals and doped semiconductors with spin-orbit coupling. It has recently been argued that the spin Hall...
Dielectric Function of Diluted Magnetic Semiconductors in the Infrared Regime (2004)
Aguado, R., López-Sancho, M. P., Sinova, Jairo, Brey, L.
We present a study of the dielectric function of metallic (III,Mn)V diluted magnetic semiconductors in the infrared regime. Our theoretical approach is based on the kinetic exchange model for carrier...
Hankiewicz, E. M., Jungwirth, T., Dietl, T., Timm, C., Sinova, Jairo
We report on a study of the ac conductivity and magneto-optical properties of metallic ferromagnetic (III,Mn)V semiconductors in the infrared to visible spectrum. Our analysis is based on the...
Sinova, Jairo, Jungwirth, T., Cerne, J.
Rapid developments in material research of metallic ferromagnetic (III,Mn)V semiconductors over the past few years have brought a much better understanding of these complex materials. We review here...
Sinitsyn, N. A., Hankiewicz, E. M., Teizer, W., Sinova, Jairo
We investigate the spin-current linear response conductivity tensor to an electric field in a paramagnetic two dimensonal electron gas with both Rashba and Dresselhaus spin-orbit coupling in the weak...
Semiclassical theory of spin transport in spin-orbit coupled systems (2003)
Culcer, Dimitrie, Sinova, Jairo, Sinitsyn, N. A., Jungwirth, T., MacDonald, A. H., Niu, Q.
Motivated by recent interest in novel spintronics effects, we develop a semiclassical theory of spin transport that is valid for spin-orbit coupled bands. Aside from the obvious convective term in...
Magnetization relaxation in (Ga,Mn)As ferromagnetic semiconductors (2003)
Sinova, Jairo, Jungwirth, T., Liu, X., Sasaki, Y., Furdyna, J. K., Atkinson, W. A., ...
We describe a theory of Mn local-moment magnetization relaxation due to p-d kinetic-exchange coupling with the itinerant-spin subsystem in the ferromagnetic semiconductor (Ga,Mn)As alloy. The...
Universal Intrinsic Spin-Hall Effect (2003)
Sinova, Jairo, Culcer, Dimitrie, Niu, Q., Sinitsyn, N. A., Jungwirth, T., MacDonald, A. H.
We describe a new effect in semiconductor spintronics that leads to dissipationless spin-currents in paramagnetic spin-orbit coupled systems. We argue that in a high mobility two-dimensional electron...
First Principles Calculation of Anomalous Hall Conductivity in Ferromagnetic bcc Fe (2003)
Yao, Yugui, Kleinman, L., MacDonald, A. H., Sinova, Jairo, Jungwirth, T., Wang, Ding-sheng, ...
We perform a first principles calculation of the anomalous Hall effect in ferromagnetic bcc Fe. Our theory identifies an intrinsic contribution to the anomalous Hall conductivity and relates it to...
Jungwirth, T., Masek, J., Sinova, Jairo, MacDonald, A. H.
We present a theoretical study of (Ga,Mn)(As,C) diluted magnetic semiconductors with high C acceptor density that combines insights from phenomenological model and microscopic approaches. A...
DC-transport properties of ferromagnetic (Ga,Mn)As semiconductors (2003)
Jungwirth, T., Sinova, Jairo, Wang, K. Y., Edmonds, K. W., Campion, R. P., Gallagher, B. L., ...
We study the dc transport properties of (Ga,Mn)As diluted magnetic semiconductors with Mn concentration varying from 1.5% to 8%. Both diagonal and Hall components of the conductivity tensor are...
Infrared magneto-optical properties of (III,Mn)V ferromagetic semiconductors (2003)
Sinova, Jairo, Jungwirth, T., Kucera, J., MacDonald, A. H.
We present a theoretical study of the infrared magneto-optical properties of ferromagnetic (III,Mn)V semiconductors. Our analysis combines the kinetic exchange model for (III,Mn)V ferromagnetism with...
Theoretical models of ferromagnetic III-V semiconductors (2002)
Jungwirth, T., Sinova, Jairo, Kučera, J., MacDonald, A. H.
Recent materials research has advanced the maximum ferromagnetic transition temperature in semiconductors containing magnetic elements toward room temperature. Reaching this goal would make...
Non-Drude Optical Conductivity of (III,Mn)V Ferromagnetic Semiconductors (2002)
Yang, S. -R. Eric, Sinova, Jairo, Jungwirth, T., Shim, Y. P., MacDonald, A. H.
We present a numerical model study of the zero-temperature infrared optical properties of (III,Mn)V diluted magnetic semiconductors. Our calculations demonstrate the importance of treating disorder...
Sinova, Jairo, Hanna, C. B., MacDonald, A. H.
We demonstrate a direct connection between the density profile of a system of ultra-cold trapped bosonic particles in the rapid-rotation limit and its condensate fraction. This connection can be used...
Boltzmann theory of engineered anisotropic magnetoresistance in (Ga,Mn)As (2002)
Jungwirth, T., Abolfath, M., Sinova, Jairo, Kucera, J., MacDonald, A. H.
We report on a theoretical study of dc transport coefficients in (Ga,Mn)As diluted magnetic semiconductor ferromagnets that accounts for quasiparticle scattering from ionized Mn$^{2+}$ acceptors with...
Electron-Phonon Interactions in Polyacene Organic Transistors (2002)
Sinova, Jairo, Núñez, Alvaro, Schliemann, John, MacDonald, A. H.
We present a simple model for the electron-phonon interactions between the energy subbands in polyacene field-effect transistors and the vibrations of the crystal. We introduce a generalized...
Sinova, Jairo, MacDonald, A. H., Girvin, S. M.
We present a Hartree-Fock study of the competition between disorder and interactions in quantum Hall ferromagnets near $\nu=1$. We find that the ground state at $\nu=1$ evolves with increasing...
Infrared conductivity of metallic (III,Mn)V ferromagnets (2002)
Sinova, Jairo, Jungwirth, T., Yang, S. - R. Eric, Kučera, J., MacDonald, A. H.
We present a theory of the infrared conductivity and absorption coefficients of metallic (III,Mn)V ferromagnetic semiconductors. We find that the conductivity is dominated by inter-valence-band...
Curie Temperature Trends in (III,Mn)V Ferromagnetic Semiconductors (2002)
Jungwirth, T., König, Jürgen, Sinova, Jairo, Kučera, J., MacDonald, A. H.
We present a theoretical survey of ferromagnetic transition temperatures in cubic (III,Mn)V semiconductors based on a model with $S=5/2$ local moments exchange-coupled to itinerant holes in the host...
Quantum Melting and Absence of Bose-Einstein Condensation in Two-Dimensional Vortex Matter (2002)
Sinova, Jairo, Hanna, C. B., MacDonald, A. H.
We demonstrate that quantum fluctuations suppress Bose-Einstein condensation of quasi-two-dimensional bosons in a rapidly-rotating trap. Our conclusions rest in part on an effective-Lagrangian...
2D bands and electron-phonon interactions in polyacene plastic transistors (2001)
Sinova, Jairo, Schliemann, John, Núñez, Alvaro S., MacDonald, A. H.
We present a simple tight-binding model for the two-dimensional energy bands of polyacene field-effect transistors and for the coupling of these bands to lattice vibrations of their host molecular...
Nature and number of distinct phases in the random field Ising model (2001)
Sinova, Jairo, Canright, Geoff
We investigate the phase structure of the random-field Ising model with a bimodal random field distribution. Our aim is to test for the possibility of an equilibrium spin-glass phase, and for replica...
2D Bands and Electron-Phonon Interactions in Polyacene Plastic Transistors (2001)
MacDonald, A. H., Núñez, Alvaro S., Schliemann, John, Sinova, Jairo
The quantum Hall plateau transition at order 1/N (2000)
Moore, Joel E., Zee, A., Sinova, Jairo
The localization behavior of noninteracting two-dimensional electrons in a random potential and strong magnetic field is of fundamental interest for the physics of the quantum Hall effect. In order...
Sinova, Jairo, Canright, Geoff, Castillo, Horacio E., MacDonald, Allan H.
We study the nature of the broken ergodicity in the low temperature phase of Ising spin glass systems, using as a diagnostic tool the spectrum of eigenvalues of the spin-spin correlation function. We...
Sinova, Jairo, Canright, Geoff, MacDonald, A. H.
In this work we address the nature of broken ergodicity in the low temperature phase of Ising spin glasses by examining spectral properties of spin correlation functions $C_{ij}\equiv< S_i S_j>$. We...
Disorder and interactions in quantum Hall ferromagnets near $\nu=1$ (2000)
Sinova, Jairo, MacDonald, A. H., Girvin, S. M.
We report on a finite-size Hartree-Fock study of the competition between disorder and interactions in a two-dimensional electron gas near Landau level filling factor $\nu=1$. The ground state at...
Liouvillian Approach to the Integer Quantum Hall Effect Transition (2000)
Sinova, Jairo, Meden, V., Girvin, S. M.
We present a novel approach to the localization-delocalization transition in the integer quantum Hall effect. The Hamiltonian projected onto the lowest Landau level can be written in terms of the...
Skyrmion Dynamics and NMR Line Shapes in QHE Ferromagnets (1999)
Sinova, Jairo, Girvin, S. M., Jungwirth, T., Moon, K.
The low energy charged excitations in quantum Hall ferromagnets are topological defects in the spin orientation known as skyrmions. Recent experimental studies on nuclear magnetic resonance spectral...