Abstract
Low-temperature neutron diffraction and NMR studies of field-induced phases in linarite are presented for magnetic fields axis. A two-step spin-flop transition is observed, as well as a transition transforming a helical magnetic ground state into an unusual magnetic phase with sine-wave-modulated moments . An effective single-chain model with a magnetization-dependent frustration ratio is proposed. The latter is governed by skew interchain couplings and shifted to the vicinity of the ferromagnetic critical point. It explains qualitatively the observation of a rich variety of exotic longitudinal collinear spin-density wave, , states ().
- Received 13 August 2015
DOI:https://doi.org/10.1103/PhysRevLett.116.047202
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