Abstract
We present a combined experimental and theoretical study on copper pyrimidine dinitrate , a one-dimensional antiferromagnet with alternating local symmetry. From the local susceptibility measured by NMR at the three inequivalent carbon sites in the pyrimidine molecule we deduce a giant spin canting, i.e., an additional staggered magnetization perpendicular to the applied external field at low temperatures. The magnitude of the transverse magnetization, the spin canting of at 10 K and 9.3 T, and its temperature dependence are in excellent agreement with exact diagonalization calculations.
- Received 7 May 2004
DOI:https://doi.org/10.1103/PhysRevLett.94.057204
©2005 American Physical Society