UNIGE document Scientific Article
previous document  unige:36045  next document
add to browser collection
Title

Field-controlled magnetic order in the quantum spin-ladder system (Hpip)2CuBr4

Authors
Thielemann, B.
Kiefer, K.
Rønnow, H. M.
Normand, B.
Orignac, E.
show hidden authors show all authors [1 - 21]
Published in Physical Review. B, Condensed Matter. 2009, vol. 79, no. 2
Abstract Neutron diffraction is used to investigate the field-induced, antiferromagnetically ordered state in the two-leg spin-ladder material (Hpip)2CuBr4. This “classical” phase, a consequence of weak interladder coupling, is nevertheless highly unconventional: its properties are influenced strongly by the spin Luttinger-liquid state of the ladder subunits. We determine directly the order parameter (transverse magnetization), the ordering temperature, the spin structure, and the critical exponents around the transition. We introduce a minimal microscopic model for the interladder coupling and calculate the quantum fluctuation corrections to the mean-field interaction.
Identifiers
Full text
Structures
Citation
(ISO format)
THIELEMANN, B. et al. Field-controlled magnetic order in the quantum spin-ladder system (Hpip)2CuBr4. In: Physical Review. B, Condensed Matter, 2009, vol. 79, n° 2. https://archive-ouverte.unige.ch/unige:36045

185 hits

42 downloads

Update

Deposited on : 2014-04-28

Export document
Format :
Citation style :