Field Induced Staggered Magnetization and Magnetic Ordering in $C{u}_2(C_5{H}_{12}{N}_2{)}_{2}C{l}_4$

Abstract

We present a ${}^2$D NMR investigation of the gapped spin-1/2 compound $C{u}_2(C_5{H}_{12}{N}_2{)}_{2}C{l}_4$. Our measurements reveal the presence of a magnetic field induced transverse staggered magnetization (TSM) which persists well below and above the field-induced 3D long-range magnetically ordered (FIMO) phase. The symmetry of this TSM is different from that of the TSM induced by the order parameter of the FIMO phase. Its origin, field dependence and symmetry can be explained by an intra-dimer Dzyaloshinskii-Moriya interaction, as shown by DMRG calculations on a spin-1/2 ladder. This leads us to predict that the transition into the FIMO phase is not in the BEC universality class.

4 pages

References in corpus (3)

• Spin-resonance modes of the spin-gap magnet TlCuCl_3
• Bose-Einstein Condensation of Magnons in TlCuCl3: Phase diagram and specific heat from a self-consistent Hartee-Fock calculation with a realistic dispersion relation
• Consequences of spin-orbit coupling for the Bose-Einstein condensation of magnons

Cited by in corpus (10)

• Bose-Einstein Condensation in Magnetic Insulators
• Controlling Luttinger liquid physics in spin ladders under a magnetic field
• Direct Observation of Magnon Fractionalization in the Quantum Spin Ladder
• Field-Controlled Magnetic Order in the Quantum Spin-Ladder System (Hpip)2CuBr4
• NMR evidence for the persistence of spin-superlattice above the 1/8 magnetization plateau in SrCu2(BO3)2
• NMR evidence for a strong modulation of the Bose-Einstein Condensate in BaCuSi${}_2$O${}_6$
• Ising phases of Heisenberg ladders in a magnetic field
• Static impurities in the S=3/2 kagome lattice
• Thermodynamic properties of the coupled dimer system Cu${}_2$(C${}_5$H${}_{12}$N${}_2$)${}_2$Cl${}_4$
• Torque anomalies at magnetization plateaux in quantum magnets with Dzyaloshinskii-Moriya interactions