Properties of a magnetic impurity in a metal |
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| Authors: | Yu N Ovchinnikov A M Dyugaev P Fulde V Z Kresin |
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| Institution: | (1) Max-Planck-Institut für Physik komplexer Systeme, 01187 Dresden, Germany;(2) Lawrence Berkeley Laboratory, University of California, 94720 California, USA;(3) Landau Institute of Theoretical Physics, Russian Academy of Sciences, 117334 Moscow, Russia |
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| Abstract: | The effect of a polarized conduction-electron cloud back on a magnetic impurity dissolved in a metal is studied. It is shown
that at a temperature T
c
much higher than the Kondo temperature the system becomes unstable against symmetry breaking and that a state with 〈S
z
〉 ≠ 0 is established. The behavior of 〈 S
z
〉 is derived for all temperatures and magnetic fields except for a very narrow region around T
c
and for very low temperatures. The minute role of Kondo-type processes in establishing the symmetry-broken state is pointed
out.
Pis’ma Zh. éksp. Teor. Fiz. 66, No. 3, 184–189 (10 August 1997)
Published in English in the original Russian journal. Edited by Steve Torstveit. |
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| Keywords: | |
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