Photoemission view of electron fractionalization in quasi-one dimensional metal Li$_{0.9}$Mo$_6$O$_{17}$

Abstract

We report Luttinger liquid line shapes better revealed by new angle resolved photoemission data taken with a much improved angle resolution on a quasi-1-dimensional metal Li$_{0.9}$Mo$_6$O$_{17}$. The new data indicate a larger spinon velocity than our previous lower resolution data indicated.

submitted to SCES '01