Spin tunneling and the effective potential method

作者: O.B. Zaslavskii

DOI: 10.1016/0375-9601(90)90317-H

关键词: Schrödinger equationAnisotropyCondensed matter physicsQuantum mechanicsSpin polarizationTunnel effectZero field splittingInstantonSpin polarized scanning tunneling microscopyPhysicsPotential method

摘要: Abstract Spin tunneling is described based on the exact correspondence between spin system and a particle moving in potential field. In general case of two-axis anisotropy periodic. Using instanton technique energy splitting has been calculated.

参考文章(15)
Antonino Zichichi, The Whys of Subnuclear Physics The Whys of Subnuclear Physics. pp. 1- 10 ,(1979) , 10.1007/978-1-4684-0991-8_1
P. CARRUTHERS, MICHAEL MARTIN NIETO, Phase and Angle Variables in Quantum Mechanics Reviews of Modern Physics. ,vol. 40, pp. 411- 440 ,(1968) , 10.1103/REVMODPHYS.40.411
E. M. Chudnovsky, L. Gunther, Quantum theory of nucleation in ferromagnets. Physical Review B. ,vol. 37, pp. 9455- 9459 ,(1988) , 10.1103/PHYSREVB.37.9455
M. Razavy, An exactly soluble Schrödinger equation with a bistable potential American Journal of Physics. ,vol. 48, pp. 285- 288 ,(1980) , 10.1119/1.12141
A. V. Turbiner, Quasi-exactly-solvable problems and sl(2) algebra Communications in Mathematical Physics. ,vol. 118, pp. 467- 474 ,(1988) , 10.1007/BF01466727
J.L. Van Hemmen, A. Sütö, Tunneling of quantum spins Physica B-condensed Matter. ,vol. 141, pp. 37- 75 ,(1986) , 10.1016/0378-4363(86)90347-5
G Scharf, W F Wreszinski, van, J L Hemmen, Tunnelling of a large spin: mapping onto a particle problem Journal of Physics A. ,vol. 20, pp. 4309- 4319 ,(1987) , 10.1088/0305-4470/20/13/032
E. M. Chudnovsky, L. Gunther, Quantum tunneling of magnetization in small ferromagnetic particles. Physical Review Letters. ,vol. 60, pp. 661- 664 ,(1988) , 10.1103/PHYSREVLETT.60.661
Harvey K. Shepard, Decay Widths for Metastable States: Improved {WKB} Approximation Physical Review D. ,vol. 27, pp. 1288- 1298 ,(1983) , 10.1103/PHYSREVD.27.1288