Anomalous Variation of Optical Spectra with Spin Polarization in Double-Exchange Ferromagnet:
- 3 July 1995
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 75 (1), 109-112
- https://doi.org/10.1103/physrevlett.75.109
Abstract
Optical spectra and their temperature dependence have been investigated for a prototypical double-exchange ferromagnet ( ). The optical conductivity spectrum above is characterized by interband transitions between the exchange-split bands and gradually changes into intraband excitations with decrease of temperature, accompanied by conspicuous transfer of spectral weight over a wide energy region of 0–3 eV. The results indicate a large variation of the electronic structure with the spin polarization of the conduction carriers.
Keywords
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