Alexey Kovalev

Associate Professor Physics & Astronomy University of Nebraska-Lincoln

Address: JH 310K
Lincoln NE 68588-0299
Phone: 402-472-2880 On-campus 2-2880
Email: alexey.kovalev@unl.edu

Publications on Digital Commons

Google Scholar

Research Interests

Spintronics and Spincaloritronics
Spin-Hall Effect
Magnetoelectronics
Spin-Transfer Torque
Anomalous Hall Effect
Magnetization Dynamics
Nanoelectromechanical Systems
Theory of Spin-Polaron in 2D Antiferromagnets
Quantum Information Theory

Selected Talks

"Magnetomechanical Effects in Magnetic Clusters and Molecules," 55th Conference on Magnetism and Magnetic Materials, Atlanta/Georgia, USA (invited 11/2010)
"Macrospin Tunneling and Magnetopolaritons with Nanomechanical Interference," Seventh International Workshop on Magnetism and Superconductivity at the Nanoscale, Coma-Ruga, Spain (invited 7/2011) (see PDF)
"Spintronics phenomena in the classical and quantum worlds," Stony Brook University (2/2012) (see PDF)
"Improved quantum hypergraph product LDPC codes," APS March Meeting 2012 (3/2012) (see PDF)
"Thermomagnonic spin transfer and Peltier effects in insulating magnets," APS March Meeting 2012 (invited 3/2012) (see PDF)
"Quantum LDPC codes: hypergraph-product and related constructions," IEEE International Symposium on Information Theory (ISIT 2012) (see PDF)
"Fault tolerance of "bad" quantum low-density parity check codes," Perimeter Institute For Theoretical Physics (10/2012) (see video)
"Spin supercurrents and torquing with Majorana fermions," KITP UCSB (10/2013) (see link)
"Noncollinear Antiferromagnetic Insulators as a Promising Platform for Spintronics," Online Spintronics Seminar, UNL (2/2021) (see video)
"Towards control of spin currents in magnetic insulators", TopMax22, International Workshop at Max Planck Institute (6/2022) (see video)

Selected Publications

A. A. Kovalev, A. Brataas, and G. E. W. Bauer, "Spin transfer in diffusive ferromagnet-normal metal systems with spin-flip scattering", Phys. Rev. B 66, 224424 (2002)
A. A. Kovalev, G. E. W. Bauer and A. Brataas, "Current-driven ferromagnetic resonance, mechanical torques and rotary motion in magnetic nanostructures", Phys. Rev. B 75, 014430 (2007)
A. A. Kovalev, G. E. W. Bauer and A. Brataas, "Nano-mechanical magnetization reversal", Phys. Rev. Lett. 94, 167201 (2005)
A. A. Kovalev, Y. Tserkovnyak, "Thermomagnonic spin transfer and Peltier effects in insulating magnets", EPL (Europhysics Letters), 97(6), 67002 (2012)
A. F. Barabanov, A. A. Kovalev, O. V. Urazaev, A. M. Belemouk, R. Hayn, "Evolution of the Fermi surface of cuprates on the basis of the spin-polaron approach", Journal of Experimental and Theoretical Physics, 92(4), 677-695 (2001)
A. A. Kovalev, Y. Tserkovnyak, K. Výborný, J. Sinova, "Transport theory for disordered multiple-band systems: Anomalous Hall effect and anisotropic magnetoresistance", Phys. Rev. B 79, 195129 (2009)
A. A. Kovalev and Y. Tserkovnyak, "Thermoelectric spin transfer in textured magnets", Phys. Rev. B 80, 100408(R) (2009)
A. A. Kovalev, J. Sinova and Y. Tserkovnyak, "Anomalous Hall Effect in Disordered Multiband Metals", Phys. Rev. Lett. 105, 036601 (2010)
A. A. Kovalev, L. X. Hayden, G. E. W. Bauer, Y. Tserkovnyak, "Macrospin Tunneling and Magnetopolaritons with Nanomechanical Interference", Phys. Rev. Lett. 106, 147203 (2011)
A. A. Kovalev, L. P. Pryadko, "Fault tolerance of quantum low-density parity check codes with sublinear distance scaling", Phys. Rev. A 87, 020304(R) (2013)
A. A. Kovalev, S. Sandhoefner, "Skyrmions and Antiskyrmions in Quasi-Two-Dimensional Magnets", Front. Phys. 6, 98 (2018)
V. A. Zyuzin, A. A. Kovalev, "Magnon Spin Nernst Effect in Antiferromagnets", Phys. Rev. Lett. 117, 217203 (2016)

Group photo, 2018