Alexey Kovalev Profile

Alexey Kovalev

Associate Professor

310K Jorgensen Hall
402-472-2880
alexey.kovalev@unl.edu

Relevant Links

Download recent publications here.

See publication list here

Download Curriculum Vitae

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)

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, K. Výborný, J. Sinova, "Hybrid skew scattering regime of the anomalous Hall effect in Rashba systems: unifying Keldysh, Boltzmann, and Kubo formalisms", Phys. Rev. B 78, 041305(R) (2008)
A. F. Barabanov, A. A. Kovalev, O. V. Urazaev, A. M. Belemouk, "Spin-polaron excitations in the two-dimensional Kondo lattice with spin frustration", Physics Letters A 265, 221 – 224, (2000)
A. A. Kovalev, "NANOMECHATRONICS: A new twist on a classic experiment", Nature Nanotechnology 3, 710 (2008)
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 and Y. Tserkovnyak, "Magnetocaloritronic nanomachines", Solid State Commun. (Special issue: Caloritronics) 150, 500 (2010)
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) (see pdf)

Group Members

Kovalev research group

I am always looking for creative students and postdocs who are interested in theoretical condensed matter physics.

		Bo Li Graduate Student JH 244A Jorgensen Hall boliwalker@gmail.com
		Shane Sandhoefner Graduate Student JH 244A Jorgensen Hall shanesandhoefner@gmail.com
	Former Group Members:
		Vladimir Zyuzin, Posdoctoral Researcher at Texas A&M
		Utkan Güngördü, Postdoctoral Researcher at University of Maryland, Baltimore County
		Sanjay Prabhakar, Postdoctoral Researcher, Georgia State University-Atlanta
		Rabindra Nepal, Senior Scientist at Zoetis Inc.
		Aldo Raeliarijaona, Postdoctoral Fellow - Carnegie Institution for Science