Abstract
Magnetic properties in the charge-ordered phase of Yb4As3 have been studied by polarized-neutron diffraction. It is revealed that one-dimensional (1D) chains of magnetic Yb3+ ions are formed by charge ordering below 290 K. The field-induced magnetic moment on the 1D chain under a field parallel to the chain behaves as that of a spin-1/2 1D Heisenberg antiferromagnet with a g factor g∦=2.9. In the case of a field perpendicular to the chain, we observed a pronounced enhancement below about 10 K. The observed enhancement of the field-induced magnetization is reproduced well by a theory which takes into account the staggered-field effect due to the Dzyaloshinsky-Moriya interaction within the 1D magnetic chain.
| Original language | English |
|---|---|
| Article number | 052408 |
| Pages (from-to) | 524081-524084 |
| Number of pages | 4 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 65 |
| Issue number | 5 |
| Publication status | Published - 2002 Feb 1 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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Iwasa, K., Kohgi, M., Gukasov, A., Mignot, J. M., Shibata, N., Ochiai, A., Aoki, H., & Suzuki, T. (2002). Staggered-field effect on the magnetic-field-induced magnetization of the one-dimensional antiferromagnet Yb4As3. Physical Review B - Condensed Matter and Materials Physics, 65(5), 524081-524084. [052408].