Angle-resolved photoemission and band-structure results for linear chain TlGaTe2 - art. no. 045210

TlGaTe2 has a quasi-one-dimensional crystal structure consisting of Tl and linked GaTe4 tetrahedral chains. We have studied the electronic band struct ure of TlGaTe2 by means of photoemission spectroscopy and band-structure ca lculation. Comparison between both results is rather favorable and energy b ands show strong dispersion perpendicular to the chain direction. We have m easured the temperature dependence of the spectra and attributed the observ ed spectral shifts to a downward shift of the Fermi level with decreasing t emperature.