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Optical conductivity of alpha-MnThe optical constants were measured at room temperature in the photon-energy range 0.6 to 6.5 eV on evaporated thin films. Evaporation conditions were chosen that gave the alpha-Mn crystal structure with reasonably large grains. The optical conductivity was separated into intraband and interband contributions by fitting to the Drude formula at low energies. The results are anomalous in comparison to other 3d transition metals. The free-electron lifetime is exceptionally sort (in agreement with the large dc resistivity of Mn), and the interband transitions seem unusually weak at the lower energies. Possible explanations related to the complicated crystal structure of alpha-Mn are discussed.
Document ID
19820015134
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Scoles, K. J.
(Dartmouth Coll. Hanover, NH, United States)
Christy, R. W.
(Dartmouth Coll. Hanover, NH, United States)
Date Acquired
September 4, 2013
Publication Date
January 1, 1982
Subject Category
Optics
Report/Patent Number
NASA-CR-168761
NAS 1.26:168761
Accession Number
82N23008
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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