Magnetic structure of the quasi-one-dimensional frustrated antiferromagnet LiCu2O2 with Spin S = 1/2

Magnetic phase diagram of the frustratedS=12chain magnet LiCu2O2Bush1, Glazkov2, Hagiwara3 et al. 2012Phys. Rev. BSelf Cite313380View full textAdd to dashboardCite

“…The spectra obtained from twinned samples had a form of superposition of these spectra. ESR measurements also confirm absence of twinning in the samples used 20 .…”

“…ESR and NMR studies of LiCu 2 O 2 in the low-temperature magnetically ordered phase (T < T c2 ) have shown that the planar spiral magnetic structure is formed in this compound 20 . The magnetic moments located at the α (β, γ or δ) position of the crystal unit cell with coordinates x, y, z (measured along the a, b and c-axes of the crystal respectively) are defined as:…”

“…20,22 The phases φ α , φ β , φ γ and φ δ determine the mutual orientation of the spins in the chains formed by the ions in the different crystallographic positions. Their values can be extracted from the NMR data 20,30 .…”

“…Our new experiments expand the magnetic field range from the fields of up to 9 T of the previous work 20 to the fields of up to 52 T, which is approximately 40% of the expected satura- tion field (H sat ). These measurements display two phase transitions.…”

Anisotropic exchange in LiCu2O2

“…56. For the ESR measurements they were fixed in Suprasil quartz tubes with paraffin to provide a well defined rotation axis for angular dependent investigations.…”