Research Project
Grant-in-Aid for Scientific Research (C)
In order to reveal the mechanism of metal - insulator transition of quasi-one-dimensional BaVS3 at 70 K, we have investigated the change of the V 3d state across the transition mainly by means of angle-resolved photoemission spectroscopy (ARPES) and soft x-ray absorption linear dichroism spectroscopy (LD). ARPES studies revealed that the a1g orbital forms a gap at 150 - 120 K, far above 70 K, due to one-dimensional instability, while the egp orbital forms a gap just at 70 K due to localization. LD studies, on the other hand, revealed that the occupancy ratio of the V 3d orbitals is unchanged across the transition. Theoretical analyses of the LD spectra highly suggest that the V 3d orbitals aligns with egp-egp-egp-a1g order along the V chain.
All 2014 2013 2012 2011 Other
All Journal Article (22 results) (of which Peer Reviewed: 22 results, Open Access: 2 results) Presentation (36 results) (of which Invited: 1 results)
J. Phys. Soc. Conf. Proc.
Volume: 1
10.7566/jpscp.1.012116
J. Phys. Soc. Conf. Proc
Volume: Vol.1
10.7566/jpscp.1.012017
Phys. Rev. B
Volume: Vol.89 Issue: 15
10.1103/physrevb.89.155137
Volume: Vol.89
PHYSICAL REVIEW B
Volume: 89 Issue: 4 Pages: 45112-45112
10.1103/physrevb.89.045112
J. Phys. Soc. Jpn.
Volume: 83 Issue: 1 Pages: 014707-014707
10.7566/jpsj.83.014707
Volume: -
Volume: 89 Issue: 12 Pages: 121111-121111
10.1103/physrevb.89.121111
Phys. Status Solidi C
Volume: 10 Issue: 7-8 Pages: 989-992
10.1002/pssc.201200814
Volume: 10 Issue: 7-8 Pages: 1001-1004
10.1002/pssc.201200863
Solid State Commun.
Volume: 157 Pages: 16-20
10.1016/j.ssc.2012.12.027
Sci. technol. Adv. Mater.
Volume: 13 Issue: 5 Pages: 054403-054403
10.1088/1468-6996/13/5/054403
J. Phys.: Conf. Ser.
Volume: 391 Pages: 012137-012137
10.1088/1742-6596/391/1/012137
Volume: 391 Pages: 012107-012107
10.1088/1742-6596/391/1/012107
Volume: 86 Issue: 11 Pages: 1-5
10.1103/physrevb.86.115114
Volume: Vol.85 Issue: 16
10.1103/physrevb.85.165136
120005173617
Journal of Electron Spectroscopy and Related Phenomena
Volume: 184 Issue: 3-6 Pages: 184-187
10.1016/j.elspec.2011.02.003
Physical Review B
Volume: 84 Issue: 11
10.1103/physrevb.84.115143
Phys.Rev.B
Volume: 83 Issue: 24
10.1103/physrevb.83.245116
Volume: (in press)