Abstract
Recently, two attempts have been made to explain the size dependence of the Kondo effect: (i) static disorder proposed by Martin, Wan and Phillips [1], and (ii) surface spin anisotropy for magnetic impurities due to spin-orbit interaction between the nonmagnetic host atoms and electrons [2]. These two suggestions can be applied in the opposite limits, namely in the dirty and ballistic regions. According to the theory (ii), if the normal vector of the surface is n, then the anisotropy energy is H a = K d (nS)2, where S is the spin operator of the impurity spin and K d is the strength of the anisotropy which depends inversely on the distance d of the impurity measured from the surface.
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References
I. Martin, Yi Wan, and Phillip Phillips, Phys. Rev. Lett. 78, 114 (1997); Phillip Phillips in the present Vol.
O. Újsághy, A. Zawadowski, and B.L. Gyorffy, Phys. Rev. Lett. 76, 2378 (1996); O. Újsághy, these proceedings, p. 23.
L. Borda and A. Zawadowski, Phys. Rev. B 61, 3570 (2000).
N. Giordano, Phys. Rev. B 53, 2487 (1996); T.M. Jacobs and N. Giordano, these proceedings, p. 1.
O. Újsághy, L. Borda, and A. Zawadowski, J. Appl. Phys. 87, 6083 (2000).
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© 2001 Springer Science+Business Media Dordrecht
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Borda, L. (2001). Theory Of Magnetoresistance in Films of Dilute Magnetic Alloys. In: Chandrasekhar, V., Van Haesendonck, C., Zawadowski, A. (eds) Kondo Effect and Dephasing in Low-Dimensional Metallic Systems. NATO Science Series, vol 50. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-0427-5_21
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DOI: https://doi.org/10.1007/978-94-010-0427-5_21
Publisher Name: Springer, Dordrecht
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