Umklapp scattering from spin fluctuations in copper oxides
نویسندگان
چکیده
منابع مشابه
Spin structures of tetragonal lamellar copper oxides.
The spin Hamiltonian of tetragonal lamellar antiferromagnets is shown to contain several novel anisotropies. Symmetry allows bond-dependent anisotropic exchange interactions, which lead to (a) interplane mean-field coupling and (b) an in-plane anisotropy which vanishes classically but arises from quantum zero point energy (QZPE). A similar QZPE involving the interplane isotropic interaction pre...
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We study the low-lying excitations of a quantum-Hall sample that has undergone edge reconstruction such that there exist three branches of chiral edge excitations. Among the interaction processes that involve electrons close to the three Fermi points is a new type of Umklapp-scattering process which has not been discussed before. Using bosonization and a refermionization technique, we obtain ex...
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E. Boulat,1,2 P. Mehta,2 N. Andrei,2 E. Shimshoni,3 and A. Rosch4 1Laboratoire MPQ, CNRS, Université Paris Diderot, 75205 Paris Cedex 13, France 2Center for Material Theory, Rutgers University, Piscataway, New Jersey 08854, USA 3Department of Math-Physics, University of Haifa at Oranim, Tivon 36006, Israel 4Institute for Theoretical Physics, University of Cologne, 50937 Cologne, Germany Receive...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 1995
ISSN: 0163-1829,1095-3795
DOI: 10.1103/physrevb.52.r7038