Abstract
Temperature dependent high resolution photoemission spectra of quasi-one-dimensional evince a strong renormalization of its Luttinger-liquid density-of-states anomalous exponent. We trace this new effect to interacting charge neutral critical modes that emerge naturally from the two-band nature of the material. is shown thereby to be a paradigm material that is capable of revealing new Luttinger physics.
- Received 23 February 2006
DOI:https://doi.org/10.1103/PhysRevLett.96.196403
©2006 American Physical Society