Field-Induced Staggered Magnetization and Magnetic Ordering in
- 19 October 2006
- journal article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 97 (16) , 167204
- https://doi.org/10.1103/physrevlett.97.167204
Abstract
We present a 2D NMR investigation of the gapped spin-1/2 compound Cu2(C5H10N2D2)2Cl4. 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 intradimer 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.Keywords
All Related Versions
This publication has 19 references indexed in Scilit:
- Consequences of spin-orbit coupling for the Bose-Einstein condensation of magnonsEurophysics Letters, 2004
- Magnetic-Field-Induced Condensation of Triplons in Han Purple PigmentPhysical Review Letters, 2004
- Spin-resonance modes of the spin-gap magnetPhysical Review B, 2004
- Continuum dynamics of the 1-D Heisenberg antiferromagnet: Identification with the O(3) nonlinear sigma modelPublished by Elsevier ,2002
- Bose-Einstein Condensation of Dilute Magnons inPhysical Review Letters, 2000
- Coupled ladders in a magnetic fieldPhysical Review B, 1999
- Zero temperature phase transitions in spin-ladders: Phase diagram and dynamical studies ofZeitschrift für Physik B Condensed Matter, 1998
- Bose condensation in quasi-one-dimensional antiferromagnets in strong fieldsPhysical Review B, 1991
- Exchange interaction in multinuclear transition metal complexes. 14. Exchange interactions in a novel copper(II) linear-chain compound with ladderlike structure: Cu2(1,4-diazacycloheptane)2Cl4Inorganic Chemistry, 1990
- Nonlinear Field Theory of Large-Spin Heisenberg Antiferromagnets: Semiclassically Quantized Solitons of the One-Dimensional Easy-Axis Néel StatePhysical Review Letters, 1983