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Evidence for excitonic absorption in metallic MnAs 0.88 P 0.12
Author(s) -
Bärner K.,
Stearns R.,
Braunstein R.
Publication year - 1979
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.2220950218
Subject(s) - ferromagnetism , absorption (acoustics) , condensed matter physics , metal , derivative (finance) , reflectivity , spectral line , absorption spectroscopy , materials science , exciton , atomic physics , molecular physics , chemistry , physics , optics , quantum mechanics , economics , financial economics , metallurgy , composite material
The derivative spectra of the reflectivity are measured for the double exchange ferromagnet MnAs 0.88 P 0.12 at 300, 100 K and for quantum energies between 1.6 and 5.0 eV. Excitonic absorption is found beyond interband transitions and is tentatively assigned to a triangular resonant state.