The magnetic-field dependence of optical spectra and their anisotropy have been investigated for a single crystal of (Formula presented) at 30 K. The charge-ordered (CO) state is transformed into a ferromagnetic metallic state by a magnetic field of 6.5 T, which is manifested in a huge change of optical spectra over a wide photon-energy region (0.05 eV-3 eV). The observed change in magnitude and anisotropy of the optical spectra with the external magnetic field has been elucidated in terms of the spin- and orbital-ordering structures in the CO state.
|Journal||Physical Review B - Condensed Matter and Materials Physics|
|Publication status||Published - 1998 Jan 1|
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics