Abstract
Formation of the spin torque on the magnetization and the magnetization dynamics in multilayer magnetic nanostructures with metal nonmagnetic spacers have been studied. In a microscopic approach with spinor wave functions, the expansion of spin-polarized itinerant electrons across the system with spin-dependent interface scattering is considered for different conductance regimes of the spacer. Basing on the s-d exchange model of ferromagnetism, the out-of-equilibrium spin dynamics in the magnetic multilayer nanostructures is studied. Accounting for the exchange processes between the itinerant s and the localized d electrons, it is shown the key role of electron-magnon spin-flop scattering in the ultrafast magnetization dynamics. According to the accepted description of relaxation in ferromagnetic metals, the dissipation with loss of energy and angular momentum from localized d electrons is mediated by the exchange interaction to the itinerant s electrons.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Akerman J (2005) Toward a universal memory. Sciences 308:508
Berge L (1996) Emission of spin waves by magnetic multilayer transverse by current. Phys Rev B 54:9353
Slonczewski JC (1996) Current-driven excitation of magnetic multilayers. J Magn Magn Mater 159:L7
Tsoi M, Jznsen AGM, Bass J, Chiang WC, Seck MV, Wider P (1998) Excitation of magnetic multilayer by an electric current. Phys Rev Lett 80:4281
Sun Z (1999) Current-driven magnetic switching in manganite trilayer junctions. J Magn Magn Mater 202:157
Myer EB, Ralph DC, Katine JA, Louie RN, Buhrman RA (1999) Current-induced switching of domains in magnetic multilayer devices. Science 285:867
Katine JA, Albert FJ, Buhrman RA, Muers EB, Ralph DC (2000) Current-driven magnetization reversal and spin-wave excitations in Co/Cu pillars. Phys Rev Lett 84:3148
Valet T, Fert A (1993) Theory of perpendicular magnetoresistance in magnetic multilayers. Phys Rev B 48:7099
Camblong HE, Levy PM, Zhang S (1995) Electron transport in magnetic in homogeneous media. Phys Rev B 48:7099
Stiles MD (1996) Oscillatory exchange coupling in Fe/Cr multilayers. Phys Rev B 54:14679
Schep KM, van Hoof HBAN, Kelly PJ, Bauer GEW, Inglesfield JE (1997) Interface resistances of magnetic multilayers. Phys Rev B 56:10805
Brataas A, Nazarov YV, Bauer GEW (2000) Finite-element theory of transport in ferromagnet-normal metal systems. Phys Rev Lett 84:2481
Waintal X, Myers EB, Brouwer PW, Ralph DC (2000) Role of spin-dependent interface scattering in generating current-induced torque in magnetic multilayers. Phys Rev B 62:12317
Choi GM, Min BC, Lee KL, Cahill DG (2014) Spin current generated by thermally driven ultrafast demagnetization. Nat Commun 5:4334
Kirilyuk A, Kimel AV, Rasing T (2010) Laser-induced magnetisation dynamics and reversal in ferrimagnetic alloys. Rev Mod Phys 82:2731
Kirilyuk A, Kimel AV, Rasing T (2010) Laser-induced magnetisation dynamics and reversal in ferrimagnetic alloys. Rep Prog Phys 76:026501
Lifshitz EM, Pitaevskii LP (1980) Cours of theoretical physics. Part 2, vol 9, 3rd edn. Pergamon, Oxford
Xiao J, Bauer GEW, Uchida KC, Maekawa S (2010) Theory of magnon-driven spin Seebeck effect. Phys Rev B 81:214418
Bauer GEW, Saitoh E, van Wees BJ (2012) Spincaloritronics. Nat Mater 11:391
Koopmans B, Ruigrok JJM, Dalla F, Jonge WJM (2005) Ultrafying ultrafast magnetization dynamics. Phys Rev Lett 95:267207
Walowski J, Műller G, Djordjevic M, Műnzerberg M, Klaui M, Vaz CAF, Bland JAC (2008) Energy equilibrium processes of electrons, magnons, and phonons at the femtosecond time scale. Phys Rev Lett 101:237401
Brataas A, Kent AD, Ohno H (2012) Current-induced torque in magnetic materials. Nat Mater 11:372
Tveten EG, Brataas A (2015) Electron-magnon scattering in magnetic heterostructures far out of equilibrium. Phys Rev B 92:180412
Berger L (1984) Exchange interaction between ferromagnetic domain wall and electric current in very thin metallic films. J Appl Phys 55:1954
Beenakker CWJ (1997) Random-matrix theory of quantum transport. Rev Mod Phys 69:731
Hathaway KB, Cullen JR (1992) A free electron model for the exchange coupling of ferromagnets through paramagnetic metals. J Magn Magn Mater 104:1840
Slonzhewski JC (1993) Mechanism of interlayer exchange in magnetic multilayers. J Magn Magn Mater 126:374
Bruno P (1995) Theory of interlayer magnetic coupling. Phys Rev B 52:411
Edwards DM, Frederici F, Mathon J, Umerski A (2005) self-consistent theory of current-induced switching of magnetization. Phys Rev B 71:05440
Brataas A, Nazarov YV, Gerrit EW (2001) Spin-transport in multi-terminal normal metal-ferromagnet systems with non-collinear magnetization. Eur Phys J B 22:99
Brouer PW, Beenakker CWJ (1996) Diagram method of integration over the unitary group with application to quantum transport in mesoscopic systems. J Math Phys 37:4904
Slonzhewski JC (1993) Excitation of spin wave by electric current. J Magn Magn Mater 195:L261
Beaurepaire JC, Merle JC, Daunois A, Bigot JY (1996) Ultrafast spin dynamics in ferromagnetic nickel. Phys Rev Lett 76:4250
Bsgot JY, Vomir M, Beaurepaire JC (2009) Coherent ultrafast magnetism induced by femtosecond laser pulses. Nat Phys 5:515
Schellekens AJ, Koopmans B (2013) Microscopic model for ultrafast magnetization dynamics of multisublattice magnets. Phys Rev B 87:020407
Eshenlohr A, Battitato M, Maldonado P, Pontius N, Kachel T, HolldackK MR, Fönlisch A, Oppeneer PM, Stamm C (2013) Ultrafast spin transport as key to femtosecond demagnetization. Nat Mater 12:332
Illg C, Haag M, Fähnle M (2013) Ultrafast demagnetization after laser irradiation in transition metals: Ab initio calculation of the spin-flip electron-phonon scattering with reduced exchange splitting. Phys Rev B 88:214404
Zhang Y, Chuang TH, Zakeri K, Kirschner J (2012) Relaxation time of terahertz magnons excitated at ferromagnetic surfaces. Phys Rev Lett 109:087203
Tserkovnyak Y, Brataas vA, Bauer GEW, Halperin BI (2005) Nonlocal magnetization dynamics in ferromagnetic heterostructures. Rev Mod Phys 77:1375
Bender SA, Tserkovnyak Y (2015) Interfacial spin and heat transfer between metals and magnetic insulator, vol 91, p 140402
Jauho AP, Wingreen NS, Meir Y (1994) Time-dependent transport in interacting and noninteracting resonant-tunneling systems. Phys Rev B 50:55285544
Mueller BY, Baral A, Vollar S, Cinchetti M, Aeschlimann M, Schneider HS, Rethfeld B (2013) Feedback effect during ultrafast demagnetization dynamics in ferromagnets. Phys Rev Lett 111:167204
Barker J, Atxitia U, Ostler TA, Hovorka O, Chubykalo-Fesenko O, Chantrell W (2013) Two-magnon bond state causes ultrafast thermally induced magnetization switching. Sci Rep 3:3262
Tserkovnyak Y, Hankiewicz EM, Vignale G (2009) Transverse spin diffusion in ferromagnets. Phys Rev B 79:094415
Messervey R, Tedrow PM (1994) Spin-polarized electron tunneling. Phys Rep 238:473
Atxitia U, Chubykalo-Fesenko O, Walowski J, Mann A, Műnzerberg M (2010) Evidence for thermal mechanism in laser-induced femtosecond spin dynamics. Phys Rev B 81:147401
Weber A, Pressacco F, Gűnter S, Mancini E, Oppeneer PM, Back CH (2011) Ultrafast demagnetization dynamics of thin Fe/W(110) films: comparison of time- and spin-resolved photoemission with time-resolved magneto-optic experiments. Phys Rev 84:132412
Liu Y, Wesselink RJH, Starikov AA, Kelly PJ (2014) Interface enhancement of Gilbert damping from first principles. Phys Rev Lett 113:207202
Hoffman S, Sato K, Tserkovnyak Y (2013) Landau-Lifshitz theory of the longitudinal spin Seebeck effect. Phys Rev B 88:064408
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2019 Springer Nature Switzerland AG
About this paper
Cite this paper
Korostil, A.M., Krupa, M.M. (2019). A Microscopic Description of Spin Dynamics in Magnetic Multilayer Nanostructures. In: Fesenko, O., Yatsenko, L. (eds) Nanocomposites, Nanostructures, and Their Applications. NANO 2018. Springer Proceedings in Physics, vol 221. Springer, Cham. https://doi.org/10.1007/978-3-030-17759-1_1
Download citation
DOI: https://doi.org/10.1007/978-3-030-17759-1_1
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-030-17758-4
Online ISBN: 978-3-030-17759-1
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)