1 citations · 1 across the 1 of their papers we have counts for
7 papers
Current-driven domain wall motion in thin ferromagnetic wires
S. E. Barnes, S. Maekawa
The coupling between a current and a Bloch wall is examined in the half-metal limit of the double exchange model. The conduction electrons transfer angular momentum to the Bloch wa…
Zone Edge Softening and Relaxation in the Double Exchange Model
S. E. Barnes, S. Maekawa
The double exchange model is formulated in terms of three auxiliary particles. A slow true bosonic magnon propagates by admixture with a fast fermionic pseudo-magnon.…
Hidden Symmetries in Nano-magnets
M. Preda, S. E. Barnes
The hidden symmetry of certain nano-magnets leads to many of the levels being doubly degenerate for periodic values of the Zeeman energy. Corresponding to such a symmetry is an ope…
Manifestation of intermediate spin for Fe
S. E. Barnes
Intermediate spin, which occurs in the theory of anyons, can also be exhibited by mesoscopic magnetic particles. The necessary broken time reversal symmetry is due to a suitably di…
Intermediate spin and quantum critical points, etc
S. E. Barnes
Unlike that of SO(3) or SU(2), the Lie algebra for SO(2), which defines intermediate spin, comprises only and implies commute. In general, has a continuou…
Efficient quantum computing on low temperature spin ensembles
S. E. Barnes
A new scheme is proposed which will permit electron spin resonance pulse techniques to be used to realize a quantum computer with a 100 qbits, or more. The computation is performed…