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- Title
Spin liquid in an almost ferromagnetic Kondo lattice.
- Authors
Kikoin, K. A.; Kiselev, M. N.; Mishchenko, A. S.
- Abstract
A theory of stabilization of a spin liquid in a Kondo lattice at temperatures close to the temperature of antiferromagnetic instability has been developed. Kondo exchange scattering of conduction electrons leads to emergence of a state of the spin liquid of the resonating valence bonds (RVB) type at T > T[sub K]. Owing to this stabilization, low-energy processes of Kondo scattering with energies below T[sub K] are frozen so that the "singlet" state of the Kondo lattice is not realized; instead a strongly correlated spin liquid with developed antiferromagnetic fluctuations occurs. A new version of the Feynman diagram technique has been developed to describe interaction between spin fluctuations and resonant valence bonds in a selfconsistent manner. Emergence of a strongly anisotropic RVB spin liquid is discussed.
- Subjects
FERROMAGNETISM; KONDO effect
- Publication
Journal of Experimental & Theoretical Physics, 1997, Vol 85, Issue 2, p399
- ISSN
1063-7761
- Publication type
Article
- DOI
10.1134/1.558374