Loading...
research article
Fermi liquid and non-Fermi liquid spectral lineshapes in low-dimensional solids
We exploited angle-resolved photoemission (ARPES) to investigate the nature of the elementary quasiparticle (QP) excitations in selected low-dimensional compounds. In the model quasi two-dimensional conductor TiTe2, we observe spectral lineshapes which are consistent with a Fermi liquid (FL) scenario, and the usual QP scattering mechanisms. In contrast, in typical quasi one-dimensional Peierls systems like TTF-TCNQ, (TaSe4)(2)I and K0.3MoO3 we find clear non-FL lineshapes. We briefly discuss the possible origins of these unusual properties. (C) 2002 Elsevier Science B.V. All rights reserved.
Type
research article
Authors
Publication date
2002
Publisher
Volume
127
Start page
77
End page
84
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
April 7, 2010
Use this identifier to reference this record