Superconductivity in germanium clathrate Ba8Ga16Ge30

被引：55

作者：

Bryan, JD ^{[1
]}

Srdanov, VI

Stucky, GD

Schmidt, D

机构：

[1] Univ Calif Santa Barbara, Dept Chem, Santa Barbara, CA 93106 USA

[2] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

来源：

PHYSICAL REVIEW B | 1999年 / 60卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.60.3064

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report type-II superconductivity in the germanium clathrate compound, Ba8Ga16Ge30 with critical temperature, T-c = 7.5 +/- 0.2 K as determined by magnetic susceptibility measurements. Barium atoms occupy cage voids provided by a covalent sp(3) hybridized network of gallium and germanium. Magnetic susceptibility and transport measurements were used to characterize the transition. [S0163-1829(99)06829-0].

引用

页码：3064 / 3067

页数：4

共 25 条

[1] EVIDENCE FOR LOCAL COMPOSITION VARIATIONS WITHIN YBA2CU3O7-DELTA GRAIN-BOUNDARIES [J].

BABCOCK, SE ;

LARBALESTIER, DC .

APPLIED PHYSICS LETTERS, 1989, 55 (04) :393-395

[2] INVESTIGATION OF COMPOSITION VARIATIONS NEAR GRAIN-BOUNDARIES IN HIGH-QUALITY SINTERED SAMPLES OF YBA2CU3O7-DELTA [J].

BABCOCK, SE ;

KELLY, TF ;

LEE, PJ ;

SEUNTJENS, JM ;

LAVANIER, LA ;

LARBALESTIER, DC .

PHYSICA C, 1988, 152 (01) :25-38

[3]

CAMPBELL AM, 1991, MAGNETISATION FLUX P

[4]

Carter G C, 1977, METALLIC SHIFTS NMR

[5]

CROS C, 1968, B SOC CHIM FR, P2737

[6]

CROS C, 1965, CR HEBD ACAD SCI, V260, P4764

[7]

CROS C, 1971, B SOC CHIM FR, P379

[8]

Cros C., 1970, J SOLID STATE CHEM, V2, P570, DOI [DOI 10.1016/0022-4596(70)90053-8, 10.1016/0022-4596(70)90053-8]

[9] AII(8)BIII(16)BIV(30) COMPOUNDS (AII = SR, BA - BIII = AL, GA - BIV = SI, GE, SN) AND THEIR CAGE STRUCTURES [J].

EISENMANN, B ;

SCHAFER, H ;

ZAGLER, R .

JOURNAL OF THE LESS-COMMON METALS, 1986, 118 (01) :43-55

[10] NMR studies of Na atoms in silicon clathrate compounds [J].

Gryko, J ;

McMillan, PF ;

Sankey, OF .

PHYSICAL REVIEW B, 1996, 54 (05) :3037-3039

← 1 2 3 →