Novel half-magnetization plateau and nematiclike transition in the S =1 skew chain Ni2V2O7
Abstract
A quantized magnetization plateau is usually not expected when a classic spin-flop transition occurs in a low-dimensional antiferromagnet. Here, we report an experimental observation of a spin-flop transition followed by a wide half-magnetization plateau in the S =1 skew-chain system Ni2V2O7 . This plateau, which is stabilized in fields of 8-30 T, is realized through an exotic nematiclike phase transition for magnetic fields applied along all three crystallographic axes, resulting in rich anisotropic phase diagrams. We discuss a possible mechanism whereby the magnetic frustration and interchain interactions may cause this half-magnetization plateau, which is in agreement with our exact diagonalization result.
- Publication:
-
Physical Review B
- Pub Date:
- April 2018
- DOI:
- 10.1103/PhysRevB.97.144406
- Bibcode:
- 2018PhRvB..97n4406O