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cond-mat.str-el2004★ 2.2k cited
Spin current and magneto-electric effect in non-collinear magnets
Hosho Katsura, Naoto Nagaosa, Alexander V. Balatsky
A new microscopic mechanism of the magneto-electric (ME) effect based on the spin supercurrent is theoretically presented for non-collinear magnets. The close analogy between the s…
quant-ph2004★ 17 cited
Exact supersymmetry in the relativistic hydrogen atom in general dimensions -- supercharge and the generalized Johnson-Lippmann operator
Hosho Katsura, Hideo Aoki
A Dirac particle in general dimensions moving in a 1/r potential is shown to have an exact N = 2 supersymmetry, for which the two supercharge operators are obtained in terms of (a…