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http://dx.doi.org/10.1103/PhysRevLett.69.2443 | DOI Listing |
Phys Rev Lett
April 2008
Department of Physics, University of Utah, Salt Lake City, UT 84112, USA.
We investigate interactions between spins of strongly correlated electrons subject to the spin-orbit interaction. Our main finding is that of a novel, spin-orbit mediated anisotropic spin-spin coupling of the van der Waals type. Unlike the standard exchange, this interaction does not require the wave functions to overlap.
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