Abstract
Optical conductivity spectra of ferromagnetic pyrochlore vanadate Yb2 V2 O7 were investigated under a variation of both temperature and magnetic field. It was found that the spectrum of a Mott-gap excitation, a d - d transition between neighboring V sites, exhibits spectral weight transfer to lower energies with ferromagnetic ordering as well as an applied magnetic field. This result indicates that charge dynamics is influenced by the spin state in this prototypical orbital-spin-coupled system.
| Original language | English |
|---|---|
| Article number | 024402 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 74 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2006 Jul 13 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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Waku, K., Suzuki, T., & Katsufuji, T. (2006). Spin-dependent charge dynamics of an orbital-spin-coupled system: Yb2 V2 O7. Physical Review B - Condensed Matter and Materials Physics, 74(2), [024402]. https://doi.org/10.1103/PhysRevB.74.024402