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Chiral Spin Pairing in Helical Magnets by Onoda, Shigeki; Nagaosa, Naoto is a scholarly article available to read on EtoBox.

What is Chiral Spin Pairing in Helical Magnets about?

The Ginzburg-Landau Hamiltonian for incommensurate frustrated classical spin systems is analyzed. The coupling to phonons through the Dzyaloshinskii-Moriya interaction and/or the four-spin exchange interaction of the Coulomb origin under the egde-sharing network of magnetic and ligand ions drive chiral spin piarings, introducing two successive second-order phase transitions upon cooling. First, a vector spin-chiral order appears with an either parity, leaving an O(2) chiral spin liquid. Then, the O(2) symmetry is broken by the spin ordering into a helical magnetic state. Possible candidate materials are also discussed.

Author

Onoda, Shigeki; Nagaosa, Naoto

Published

2007

Language

EN