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Observation of Free Electron Cyclotron Resonance in NaAlSi 3 O 8 Feldspar: Direct Determination of the Effective Electron Mass
Author(s) -
Poolton N.R.J.,
Nicholls J.E.,
BøtterJensen L.,
Smith G.M.,
Riedi P.C.
Publication year - 2001
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 - 10.1002/1521-3951(200106)225:2<467::aid-pssb467>3.0.co;2-3
Subject(s) - feldspar , electron , cyclotron resonance , isotropy , alkali feldspar , free electron model , alkali metal , electron cyclotron resonance , atomic physics , effective mass (spring–mass system) , chemistry , resonance (particle physics) , materials science , cyclotron , physics , nuclear physics , optics , quartz , organic chemistry , quantum mechanics , composite material
We report the first observation of cyclotron resonances in alkali feldspars, using highly sensitive optical detection methods. In Na‐feldspar (NaAlSi 3 O 8 ), a near isotropic effective electron mass value of m * e 0.79 m e has been determined. The significance of this measurement in terms of the optical transition energies of shallow donor centres is considered.