Superconductivity at 8 K in samarium-doped C-60

被引：60

作者：

Chen, XH

Roth, G

机构：

[1] UNIV SCI & TECHNOL CHINA,DEPT PHYS,HEFEI 230026,PEOPLES R CHINA

[2] FORSCHUNGSZENTRUM KARLSRUHE,INST NUKL FESTKORPERPHYS,D-76021 KARLSRUHE,GERMANY

来源：

PHYSICAL REVIEW B | 1995年 / 52卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.52.15534

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have synthesized the fulleride system SmxC60 (x<3). It is found that Sm can be intercalated into interstitial sites of C-60 to form a solid solution. For the nominal composition x=3, the sample shows superconductivity at T-c=8 K. X-ray diffraction reveals an orthorhombic structure with a=28.17(5) Angstrom, b=28.07(3) Angstrom, and c=28.27(3) Angstrom, derived from the face-centered cubic cell of A(3)C(60) by doubling in each direction and analogous to that of Yb2.75C60. The lattice parameters of Sm-doped C-60 are significantly larger than those of Yb-doped C-60 and the superconducting transition temperature of Sm3C60 is 2 K higher than that of Yb2.75C60.

引用

页码：15534 / 15536

页数：3

共 12 条

[1] RELATION OF STRUCTURE AND SUPERCONDUCTING TRANSITION-TEMPERATURES IN A3C60 [J].

FLEMING, RM ;

RAMIREZ, AP ;

ROSSEINSKY, MJ ;

MURPHY, DW ;

HADDON, RC ;

ZAHURAK, SM ;

MAKHIJA, AV .

NATURE, 1991, 352 (6338) :787-788

[2] PREPARATION AND STRUCTURE OF THE ALKALI-METAL FULLERIDE A4C60 [J].

FLEMING, RM ;

ROSSEINSKY, MJ ;

RAMIREZ, AP ;

MURPHY, DW ;

TULLY, JC ;

HADDON, RC ;

SIEGRIST, T ;

TYCKO, R ;

GLARUM, SH ;

MARSH, P ;

DABBAGH, G ;

ZAHURAK, SM ;

MAKHIJA, AV ;

HAMPTON, C .

NATURE, 1991, 352 (6337) :701-703

[3] SUPERCONDUCTIVITY AT 18-K IN POTASSIUM-DOPED C-60 [J].

HEBARD, AF ;

ROSSEINSKY, MJ ;

HADDON, RC ;

MURPHY, DW ;

GLARUM, SH ;

PALSTRA, TTM ;

RAMIREZ, AP ;

KORTAN, AR .

NATURE, 1991, 350 (6319) :600-601

[4] SUPERCONDUCTIVITY AT 8.4-K IN CALCIUM-DOPED C-60 [J].

KORTAN, AR ;

KOPYLOV, N ;

GLARUM, S ;

GYORGY, EM ;

RAMIREZ, AP ;

FLEMING, RM ;

THIEL, FA ;

HADDON, RC .

NATURE, 1992, 355 (6360) :529-532

[5] SUPERCONDUCTIVITY IN BARIUM FULLERIDE [J].

KORTAN, AR ;

KOPYLOV, N ;

GLARUM, S ;

GYORGY, EM ;

RAMIREZ, AP ;

FLEMING, RM ;

ZHOU, O ;

THIEL, FA ;

TREVOR, PL ;

HADDON, RC .

NATURE, 1992, 360 (6404) :566-568

[6]

OZDAS E, 1993, 1993 MAT RES SOC FAL

[7]

OZDAS E, 1995, NATURE, V375, P129

[8] SUPERCONDUCTIVITY AT 28 K IN RBXC60 [J].

ROSSEINSKY, MJ ;

RAMIREZ, AP ;

GLARUM, SH ;

MURPHY, DW ;

HADDON, RC ;

HEBARD, AF ;

PALSTRA, TTM ;

KORTAN, AR ;

ZAHURAK, SM ;

MAKHIJA, AV .

PHYSICAL REVIEW LETTERS, 1991, 66 (21) :2830-2832

[9] LANTHANIDE-BASED AND ACTINIDE-BASED FULLERITE COMPOUNDS - POTENTIAL-AXC60 SUPERCONDUCTORS [J].

RUOFF, RS ;

WANG, Y ;

TOMANEK, D .

CHEMICAL PHYSICS LETTERS, 1993, 203 (04) :438-443

[10] STRUCTURE OF SINGLE-PHASE SUPERCONDUCTING K3C60 [J].

STEPHENS, PW ;

MIHALY, L ;

LEE, PL ;

WHETTEN, RL ;

HUANG, SM ;

KANER, R ;

DEIDERICH, F ;

HOLCZER, K .

NATURE, 1991, 351 (6328) :632-634

← 1 2 →