Details

Autor(en) / Beteiligte

• Willenberg, B
• Schäpers, M
• Wolter, A U B
• Drechsler, S-L
• Reehuis, M
• Hoffmann, J-U
• Büchner, B
• Studer, A J
• Rule, K C
• Ouladdiaf, B
• Süllow, S
• Nishimoto, S

Titel

Complex Field-Induced States in Linarite PbCuSO4(OH)2 with a Variety of High-Order Exotic Spin-Density Wave States

Ist Teil von

• Physical review letters, 2016-01, Vol.116 (4), p.047202-047202

Ort / Verlag

United States

Erscheinungsjahr

2016

Quelle

PROLA

Beschreibungen/Notizen

• Low-temperature neutron diffraction and NMR studies of field-induced phases in linarite are presented for magnetic fields H∥b 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 ∥H. An effective J[over ˜]_{1}-J[over ˜]_{2} single-chain model with a magnetization-dependent frustration ratio α_{eff}=-J[over ˜]_{2}/J[over ˜]_{1} 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, SDW_{p}, states (9≥p≥2).