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Spin battery operated by ferromagnetic resonance

Brataas, A. (author), Tserkovnyak, Y. (author), Bauer, G.E.W. (author), Halperin, B.I. (author)

journal article 2002

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Spin pumping and magnetization dynamics in metallic multilayers

Tserkovnyak, Y. (author), Brataas, A. (author), Bauer, G.E.W. (author)

journal article 2002

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Dynamic Exchange Coupling in Magnetic Bilayers

Heinrich, B. (author), Tserkovnyak, Y. (author), Woltersdorf, G. (author), Brataas, A. (author), Urban, R. (author), Bauer, G.E.W. (author)

journal article 2003

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Universal angular magnetoresistance and spin torque in ferromagnetic/normal metal hybrids

Bauer, G.E.W. (author), Tserkovnyak, Y. (author), Huertas-Hernando, D. (author), Brataas, A. (author)

journal article 2003

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Magnetoelectronic Spin Echo

Brataas, A. (author), Zaránd, G. (author), Tserkovnyak, Y. (author), Bauer, G.E.W. (author)

journal article 2003

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Dynamic stiffness of spin valves

Tserkovnyak, Y. (author), Brataas, A. (author), Bauer, G.E.W. (author)

journal article 2003

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Spin-torque transistor

Bauer, G.E.W. (author), Brataas, A. (author), Tserkovnyak, Y. (author), Van Wees, B.J. (author)

A magnetoelectronic thin-film transistor is proposed that can display negative differential resistance and gain. The working principle is the modulation of the soure–drain current in a spin valve by the magnetization of a third electrode, which is rotated by the spin-torque created by a control spin valve. The device can operate at room...

journal article 2003

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Dynamic Ferromagnetic Proximity Effect in Photoexcited Semiconductors

Bauer, G.E.W. (author), Brataas, A. (author), Tserkovnyak, Y. (author), Halperin, B.I. (author), Zwierzycki, M. (author), Kelly, J.P. (author)

journal article 2004

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Nonlocal magnetization dynamics in ferromagnetic heterostructures

Tserkovnyak, Y. (author), Brataas, A. (author), Bauer, G.E.W. (author), Halperin, B.I. (author)

journal article 2005

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Spin accumulation and decay in magnetic Schottky barriers

Bauer, G.E.W. (author), Tserkovnyak, Y. (author), Brataas, A. (author), Ren, J. (author), Xia, K. (author), Zwierzycki, M. (author), Kelly, P.J. (author)

journal article 2005

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Magnetization noise in magnetoelectronic nanostructures

Foros, J. (author), Brataas, A. (author), Tserkovnyak, Y. (author), Bauer, G.E.W. (author)

journal article 2005

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First-principles study of magnetization relaxation enhancement and spin transfer in thin magnetic films

Zwierzycki, M. (author), Tserkovnyak, Y. (author), Kelly, P.J. (author), Brataas, A. (author), Bauer, G.E.W. (author)

journal article 2005

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Current-induced macrospin versus spin-wave excitations in spin valves

Brataas, A. (author), Tserkovnyak, Y. (author), Bauer, G.E.W. (author)

journal article 2006

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Current-induced magnetization dynamics in disordered itinerant ferromagnets

Tserkovnyak, Y. (author), Skadsem, H.J. (author), Brataas, A. (author), Bauer, G.E.W. (author)

Current-driven magnetization dynamics in ferromagnetic metals is studied in a self-consistent adiabatic local-density approximation in the presence of spin-conserving and spin-dephasing impurity scattering. Based on a quantum kinetic equation, we derive Gilbert damping and spin-transfer torques entering the Landau-Lifshitz equation to linear...

journal article 2006

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Voltage Generation by Ferromagnetic Resonance at a Nonmagnet to Ferromagnet Contact

Wang, X. (author), Bauer, G.E.W. (author), Van Wees, B.J. (author), Brataas, A. (author), Tserkovnyak, Y. (author)

A ferromagnet can resonantly absorb rf radiation to sustain a steady precession of the magnetization around an internal or applied magnetic field. We show that, under these ferromagnetic resonance conditions, a dc voltage is generated at a normal-metal electric contact to a ferromagnet with spin-flip scattering. The spin dynamics in the...

journal article 2006

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Resistance noise in spin valves

Foros, J. (author), Brataas, A. (author), Bauer, G.E.W. (author), Tserkovnyak, Y. (author)

journal article 2007

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Scattering Theory of Gilbert Damping

Brataas, A. (author), Tserkovnyak, Y. (author), Bauer, G.E.W. (author)

The magnetization dynamics of a single domain ferromagnet in contact with a thermal bath is studied by scattering theory.We recover the Landau-Liftshitz-Gilbert equation and express the effective fields and Gilbert damping tensor in terms of the scattering matrix. Dissipation of magnetic energy equals energy current pumped out of the system by...

journal article 2008

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Current-induced noise and damping in nonuniform ferromagnets

Foros, J. (author), Brataas, A. (author), Tserkovnyak, Y. (author), Bauer, G.E.W. (author)

In the presence of spatial variation in the magnetization direction, electric current noise causes a fluctuating spin-transfer torque that increases the fluctuations of the ferromagnetic order parameter. By the fluctuationdissipation theorem, the fluctuations at thermal equilibrium are related to the viscous magnetization damping, which in...

journal article 2008

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Noise and dissipation in magnetoelectronic nanostructures

Foros, J. (author), Brataas, A. (author), Bauer, G.E.W. (author), Tserkovnyak, Y. (author)

The interplay between current and magnetization fluctuations and dissipation in layered-ferromagnetic-normal-metal nanostructures is investigated. We use scattering theory and magnetoelectronic circuit theory to calculate charge and spin-current fluctuations. Via the spin-transfer torque, spin-current noise causes a significant enhancement of...

journal article 2009

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Barnett effect in thin magnetic films and nanostructures

Bretzel, S. (author), Bauer, G.E.W. (author), Tserkovnyak, Y. (author), Brataas, A. (author)

The Barnett effect refers to the magnetization induced by rotation of a demagnetized ferromagnet. We describe the location and stability of stationary states in rotating nanostructures using the Landau–Lifshitz–Gilbert equation. The conditions for an experimental observation of the Barnett effect in different materials and sample geometries are...

journal article 2009