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Case for bulk nature of spectroscopic Luttinger liquid signatures observed in angle-resolved photoemission spectra of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mi>Li</mml:mi><mml:mn>0.9</mml:mn></mml:msub><mml:msub><mml:mi>Mo</mml:mi><mml:mn>6</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>17</mml:mn></mml:msub></mml:mrow></mml:math>
Angle resolved photoemission spectroscopy (ARPES) has been performed on quasi-one dimensional Li0.9Mo6O17 using photon energy 500 eV. Measured band dispersions are in agreement with those from both low photon energy measurements and band structure calculations. The momentum integrated ARPES spectrum is well fit by the finite temperature Luttinger liquid (LL)spectral …