Fine-structure analysis of Gd M45 near-edge EELS on the valence state of Gd@C82 microcrystals

被引：53

作者：

Suenaga, K ^{[1
]}

Iijima, S

Kato, H

Shinohara, H

机构：

[1] Meijo Univ, Dept Phys, Japan Sci & Technol Corp, Nagoya, Aichi 4688502, Japan

[2] Nagoya Univ, Dept Chem, Nagoya, Aichi 4648602, Japan

来源：

PHYSICAL REVIEW B | 2000年 / 62卷 / 03期

关键词：

D O I：

10.1103/PhysRevB.62.1627

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Transmission electron energy-loss spectroscopy has been performed on a crystalline Gd@C-82 endohedral metallofullerene. Measurements of the chemical shift and the branching ratio of the Cd M-45 near-edge fine structure have revealed unambiguously the trivalent Gd atom (S-8(7/2)) encapsulated in the carbon cage. The results indicate that the encaged Gd atom is subject to a strong electronic field of the carbon cage.

引用

页码：1627 / 1630

页数：4

共 25 条

[1] PREPARATION AND STRUCTURE OF CRYSTALS OF THE METALLOFULLERENE SC-2-AT-C-84 [J].

BEYERS, R ;

KIANG, CH ;

JOHNSON, RD ;

SALEM, JR ;

DEVRIES, MS ;

YANNONI, CS ;

BETHUNE, DS ;

DORN, HC ;

BURBANK, P ;

HARICH, K ;

STEVENSON, S .

NATURE, 1994, 370 (6486) :196-199

[2]

EGERTON RF, 1996, ELECT ENERGY LOSS SP, P370

[3] Electronic structure studies of intercalated, hetero and endohedral fullerenes [J].

Fink, J ;

Pichler, T ;

Knupfer, M ;

Golden, MS ;

Haffner, S ;

Friedlein, R ;

Kirbach, U ;

Kuran, P ;

Dunsch, L .

CARBON, 1998, 36 (5-6) :625-631

[4] Gd-LIII EXAFS study of structural and dynamic properties of Gd@C82 between 10 and 300 K [J].

Giefers, H ;

Nessel, F ;

Györy, SI ;

Strecker, M ;

Wortmann, G ;

Grushko, YS ;

Alekseev, EG ;

Kozlov, VS .

CARBON, 1999, 37 (05) :721-725

[5] AN EELS STUDY OF FULLERITE - C-60-/C-70 [J].

HANSEN, PL ;

FALLON, PJ ;

KRATSCHMER, W .

CHEMICAL PHYSICS LETTERS, 1991, 181 (04) :367-372

[6] ELECTRONIC-STRUCTURE OF METALLOFULLERENE LAC82 - ELECTRON-TRANSFER FROM LANTHANUM TO C82 [J].

HINO, S ;

TAKAHASHI, H ;

IWASAKI, K ;

MATSUMOTO, K ;

MIYAZAKI, T ;

HASEGAWA, S ;

KIKUCHI, K ;

ACHIBA, Y .

PHYSICAL REVIEW LETTERS, 1993, 71 (25) :4261-4263

[7] Core-level spectroscopy of the tetravalent lanthanide compounds M(3)LnF(7) (with M=Cs, Rb; Ln=Ce, Pr, Nd, Tb, Dy) [J].

Hu, ZW ;

Kaindl, G ;

Muller, BG .

JOURNAL OF ALLOYS AND COMPOUNDS, 1997, 246 (1-2) :177-185

[8] RARE-EARTH VALENCE IN ROX (R=CE, PR, TB 1.5-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-2) STUDIED BY X-RAY ABSORPTION-SPECTROSCOPY [J].

KARNATAK, RC .

JOURNAL OF ALLOYS AND COMPOUNDS, 1993, 192 (1-2) :64-68

[9] Evidence for incomplete charge transfer and la-derived states in the valence bands of endohedrally doped La@C-82 [J].

Kessler, B ;

Bringer, A ;

Cramm, S ;

Schlebusch, C ;

Eberhardt, W ;

Suzuki, S ;

Achiba, Y ;

Esch, F ;

Barnaba, M ;

Cocco, D .

PHYSICAL REVIEW LETTERS, 1997, 79 (12) :2289-2292

[10] ELECTRON-ENERGY-LOSS SPECTRA OF CRYSTALLINE C84 [J].

KUZUO, R ;

TERAUCHI, M ;

TANAKA, M ;

SAITO, Y ;

SHINOHARA, H .

PHYSICAL REVIEW B, 1994, 49 (07) :5054-5057

← 1 2 3 →