Optical investigation of the electronic structures of Y2Ru2O7, CaRuO3, SrRuO3, and Bi2Ru2O7 -: art. no. 245107

被引：80

作者：

Lee, JS ^{[1
]}

Lee, YS

Noh, TW

Char, K

Park, J

Oh, SJ

Park, JH

Eom, CB

Takeda, T

Kanno, R

机构：

[1] Seoul Natl Univ, Sch Phys, Seoul 151747, South Korea

[2] Seoul Natl Univ, Res Ctr Oxide Elect, Seoul 151747, South Korea

[3] Seoul Natl Univ, Ctr Strongly Correlated Mat Res, Seoul 151747, South Korea

[4] Pohang Univ Sci & Technol, Dept Phys, Pohang 790784, South Korea

[5] Pohang Univ Sci & Technol, Electron Spin Sci Ctr, Pohang 790784, South Korea

[6] Univ Wisconsin, Dept Mat Sci & Engn, Madison, WI 53706 USA

[7] Kobe Univ, Dept Chem, Kobe, Hyogo 657, Japan

来源：

PHYSICAL REVIEW B | 2001年 / 64卷 / 24期

关键词：

D O I：

10.1103/PhysRevB.64.245107

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigated the electronic structures of the bandwidth-controlled ruthenates, Y2Ru2O7, CaRuO3, SrRuO3, and Bi2Ru2O7, by optical conductivity analysis in a wide energy region of 5 meV-12 eV. We could assign optical transitions from the systematic changes of the spectra and by comparison with the O 1s x-ray absorption data. We estimated some physical parameters, such as the on-site Coulomb repulsion energy and the crystal-field splitting energy. These parameters show that the 4d orbitals should be more extended than 3d ones. These results are also discussed in terms of the Mott-Hubbard model.

引用

页数：6

共 28 条

[1] Spectral evolution in (Ca,Sr)RuO3 near the Mott-Hubbard Transition [J].

Ahn, JS ;

Bak, J ;

Choi, HS ;

Noh, TW ;

Han, JE ;

Bang, Y ;

Cho, JH ;

Jia, QX .

PHYSICAL REVIEW LETTERS, 1999, 82 (26) :5321-5324

[2]

COX PA, 1983, J PHYS C SOLID STATE, V16, P6211

[3] Temperature-dependent local exchange splitting in SrRuO3 [J].

Dodge, JS ;

Kulatov, E ;

Klein, L ;

Ahn, CH ;

Reiner, JW ;

Miéville, L ;

Geballe, TH ;

Beasley, MR ;

Kapitulnik, A ;

Ohta, H ;

Uspenskii, Y ;

Halilov, S .

PHYSICAL REVIEW B, 1999, 60 (10) :R6987-R6990

[4] Structural and magnetic aspects of the metal-insulator transition in Ca2-xSrxRuO4 -: art. no. 174432 [J].

Friedt, O ;

Braden, M ;

André, G ;

Adelmann, P ;

Nakatsuji, S ;

Maeno, Y .

PHYSICAL REVIEW B, 2001, 63 (17) :1744321-17443210

[5] Electronic structure of SrRuO3 [J].

Fujioka, K ;

Okamoto, J ;

Mizokawa, T ;

Fujimori, A ;

Hase, I ;

Abbate, M ;

Lin, HJ ;

Chen, CT ;

Takeda, Y ;

Takano, M .

PHYSICAL REVIEW B, 1997, 56 (11) :6380-6383

[6] Dynamical mean-field theory of strongly correlated fermion systems and the limit of infinite dimensions [J].

Georges, A ;

Kotliar, G ;

Krauth, W ;

Rozenberg, MJ .

REVIEWS OF MODERN PHYSICS, 1996, 68 (01) :13-125

[7] Crystal-field splitting and the on-site Coulomb energy of LaxSr1-xTiO3 from resonant soft-x-ray emission spectroscopy [J].

Higuchi, T ;

Tsukamoto, T ;

Watanabe, M ;

Grush, MM ;

Callcott, TA ;

Perera, RC ;

Ederer, DL ;

Tokura, Y ;

Harada, Y ;

Tezuka, Y ;

Shin, S .

PHYSICAL REVIEW B, 1999, 60 (11) :7711-7714

[8] Metal-insulator transitions [J].

Imada, M ;

Fujimori, A ;

Tokura, Y .

REVIEWS OF MODERN PHYSICS, 1998, 70 (04) :1039-1263

[9] Determination of electronic band structures of CaMnO3 and LaMnO3 using optical-conductivity analyses [J].

Jung, JH ;

Kim, KH ;

Eom, DJ ;

Noh, TW ;

Choi, EJ ;

Yu, JJ ;

Kwon, YS ;

Chung, Y .

PHYSICAL REVIEW B, 1997, 55 (23) :15489-15493

[10] In-plane and out-of-plane optical spectra of Sr2RuO4 [J].

Katsufuji, T ;

Kasai, M ;

Tokura, Y .

PHYSICAL REVIEW LETTERS, 1996, 76 (01) :126-129

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