start-ver=1.4 cd-journal=joma no-vol=181 cd-vols= no-issue=2-3 article-no= start-page=249 end-page=251 dt-received= dt-revised= dt-accepted= dt-pub-year=2010 dt-pub=201008 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Angle-resolved photoemission spectroscopy for VO2 thin films grown on TiO2 (0 0 1) substrates en-subtitle= kn-subtitle= en-abstract= kn-abstract=We present the results of angle-resolved photoemission spectroscopy (ARPES) measurements of metallic VO2 thin films. The VO2 thin films have been grown on TiO2 (0 0 1) single crystal substrates using pulsed laser deposition. The films exhibit a first-order metal?insulator transition (MIT) at 305 K. In the ARPES spectra of the metallic phase for the films, the O 2p band shows highly dispersive feature in the binding energy range of 3?8 eV along the „C?Z direction. The periodicity of the dispersive band is found to be 2.2 ?-1 which is almost identical with the periodicity expected from the c-axis length of the VO2 thin films. The overall feature of the experimental band structure is similar to the band structure calculations, supporting that we have succeeded in observing the dispersive band of the O 2p state in the metallic VO2 thin film. The present work indicates that the ARPES measurements using epitaxial thin films are promising for determining the band structure of VO2. en-copyright= kn-copyright= en-aut-name=MuraokaY en-aut-sei=Muraoka en-aut-mei=Y kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=SaekiK en-aut-sei=Saeki en-aut-mei=K kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=YaoY en-aut-sei=Yao en-aut-mei=Y kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=WakitaT en-aut-sei=Wakita en-aut-mei=T kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= en-aut-name=HiraiM en-aut-sei=Hirai en-aut-mei=M kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=5 ORCID= en-aut-name=YokoyaT en-aut-sei=Yokoya en-aut-mei=T kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=6 ORCID= en-aut-name=EguchiR en-aut-sei=Eguchi en-aut-mei=R kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=7 ORCID= en-aut-name=ShinS en-aut-sei=Shin en-aut-mei=S kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=8 ORCID= affil-num=1 en-affil= kn-affil=Graduate School of Natural Science and Technology, Okayama University affil-num=2 en-affil= kn-affil=Graduate School of Natural Science and Technology, Okayama University affil-num=3 en-affil= kn-affil=Graduate School of Natural Science and Technology, Okayama University affil-num=4 en-affil= kn-affil=Faculty of Science, Research Laboratory for Surface Science, Okayama University affil-num=5 en-affil= kn-affil=Graduate School of Natural Science and Technology, Okayama University affil-num=6 en-affil= kn-affil=Graduate School of Natural Science and Technology, Okayama University affil-num=7 en-affil= kn-affil=RIKEN/SPring-8 affil-num=8 en-affil= kn-affil=RIKEN/SPring-8 en-keyword=ARPES kn-keyword=ARPES en-keyword=VO2 kn-keyword=VO2 en-keyword=Thin film kn-keyword=Thin film END