Electronic structure of epitaxial (Sr,Ca)RuO3 films studied by photoemission and x-ray absorption spectroscopy -: art. no. 085108

被引:51
作者
Park, J
Oh, SJ
Park, JH
Kim, DM
Eom, CB
机构
[1] Seoul Natl Univ, Sch Phys, Seoul 151742, South Korea
[2] Seoul Natl Univ, Ctr Strongly Correlated Mat Res, Seoul 151742, South Korea
[3] Pohang Univ Sci & Technol, Dept Phys, Pohang 790784, South Korea
[4] Univ Wisconsin, Dept Mat Sci & Engn, Madison, WI 53706 USA
关键词
D O I
10.1103/PhysRevB.69.085108
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Electronic structures of epitaxial (Sr,Ca)RuO3 thin films are studied by photoemission and x-ray absorption spectroscopy using synchrotron radiation. The Ru 4d spectral weights obtained by utilizing the Cooper minimum phenomena of photoionization cross-section reveal a strong mixing between Ru 4d and O 2p states as well as the signature of electron correlation effect near the Fermi level in both SrRuO3 and CaRuO3. However the electron correlation effect seems more important in CaRuO3 than SrRuO3. The detailed shapes of the valence band are found to depend on the sample cleaning methods, where the single-crystalline films cleaned by in situ annealing show more enhanced structures in the spectra than the scraped polycrystalline samples.
引用
收藏
页数:6
相关论文
共 50 条
[41]   CO SUBSTITUTION EFFECT ON THE ELECTRONIC-STRUCTURE OF NIS STUDIED BY X-RAY PHOTOEMISSION SPECTROSCOPY [J].
MAMORI, T ;
MATOBA, M ;
FUJIMORI, A ;
ANZAI, S .
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1992, 61 (02) :433-436
[42]   Electronic structure of 3d1 configuration vanadium oxides studied by soft X-ray and hard X-ray photoemission spectroscopy [J].
Eguchi, R. ;
Taguchi, M. ;
Matsunami, M. ;
Horiba, K. ;
Yamamoto, K. ;
Chainani, A. ;
Takata, Y. ;
Yabashi, M. ;
Miwa, D. ;
Nishino, Y. ;
Tamasaku, K. ;
Ishikawa, T. ;
Senba, Y. ;
Ohashi, H. ;
Inoue, I. H. ;
Muraoka, Y. ;
Hiroi, Z. ;
Shin, S. .
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 2007, 156 :421-425
[43]   Electronic structure of 3d1 configuration vanadium oxides studied by soft X-ray and hard X-ray photoemission spectroscopy [J].
Eguchi, R. ;
Taguchi, M. ;
Horiba, K. ;
Matsunami, M. ;
Yamamoto, K. ;
Takata, Y. ;
Chainani, A. ;
Yabashi, M. ;
Miwa, D. ;
Nishino, Y. ;
Tamasaku, K. ;
Ishikawa, T. ;
Senba, Y. ;
Ohashi, H. ;
Inoue, I. H. ;
Muraoka, Y. ;
Hiroi, Z. ;
Shin, S. .
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 2007, 156 :XCVII-XCVIII
[44]   Electronic properties of the diamond films with nitrogen impurities: An x-ray absorption and photoemission spectroscopy study [J].
Chang, YD ;
Chiu, AP ;
Pong, WF ;
Tsai, MH ;
Chang, YK ;
Chen, YY ;
Chiou, JW ;
Jan, CJ ;
Tseng, PK ;
Wu, RT ;
Chung, SC ;
Tsang, KL ;
Lin, IN ;
Cheng, HF .
APPLIED PHYSICS LETTERS, 2000, 77 (26) :4362-4364
[45]   X-ray angle-resolved photoemission spectroscopy of CaB6 -: art. no. 073104 [J].
Souma, S ;
Takahashi, T ;
Komatsu, H ;
Sato, T ;
Matsui, H ;
Kimura, N ;
Aoki, H ;
Kunii, S ;
Akimitsu, J .
PHYSICAL REVIEW B, 2004, 70 (07) :073104-1
[46]   Local tetragonal distortion in La0.7Sr0.3MnO3 strained thin films probed by x-ray absorption spectroscopy -: art. no. 174451 [J].
Souza-Neto, NM ;
Ramos, AY ;
Tolentino, HCN ;
Favre-Nicolin, E ;
Ranno, L .
PHYSICAL REVIEW B, 2004, 70 (17) :1-8
[47]   Determination of the antiferromagnetic spin axis in epitaxial LaFeO3 films by x-ray magnetic linear dichroism spectroscopy -: art. no. 214433 [J].
Lüning, J ;
Nolting, F ;
Scholl, A ;
Ohldag, H ;
Seo, JW ;
Fompeyrine, J ;
Locquet, JP ;
Stöhr, J .
PHYSICAL REVIEW B, 2003, 67 (21)
[48]   Probing surface states of Cu/Ni thin films using x-ray absorption spectroscopy -: art. no. 113401 [J].
Karis, O ;
Magnuson, M ;
Wiell, T ;
Weinelt, M ;
Wassdahl, N ;
Nilsson, A ;
Mårtensson, N ;
Holmström, E ;
Niklasson, AMN ;
Eriksson, O ;
Johansson, B .
PHYSICAL REVIEW B, 2001, 63 (11)
[49]   Electronic structure of Ga1-xCrxN and Si-doping effects studied by photoemission and x-ray absorption spectroscopy [J].
Song, G. S. ;
Kobayashi, M. ;
Hwang, J. I. ;
Kataoka, T. ;
Takizawa, M. ;
Fujimori, A. ;
Ohkouchi, T. ;
Takeda, Y. ;
Okane, T. ;
Saitoh, Y. ;
Yamagami, H. ;
Chang, F. -H. ;
Lee, L. ;
Lin, H. -J. ;
Huang, D. J. ;
Chen, C. T. ;
Kimura, S. ;
Funakoshi, M. ;
Hasegawa, S. ;
Asahi, H. .
PHYSICAL REVIEW B, 2008, 78 (03)
[50]   Changes of electronic structure across the insulator-to-metal transition of quasi-two-dimensional Na-intercalated β-HfNCl studied by photoemission and x-ray absorption -: art. no. 153107 [J].
Yokoya, T ;
Ishiwata, Y ;
Shin, S ;
Shamoto, S ;
Iizawa, K ;
Kajitani, T ;
Hase, I ;
Takahashi, T .
PHYSICAL REVIEW B, 2001, 64 (15)