Synthesis of superconducting pyrochlore RbOs2O6

被引：34

作者：

Kazakov, SM ^{[1
]}

Zhigadlo, ND ^{[1
]}

Brühwiler, M ^{[1
]}

Batlogg, B ^{[1
]}

Karpinski, J ^{[1
]}

机构：

[1] Swiss Fed Inst Technol, Lab Solid State Phys, CH-8093 Zurich, Switzerland

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2004年 / 17卷 / 10期

关键词：

D O I：

10.1088/0953-2048/17/10/015

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

RbOs2O6, the third superconducting pyrochlore oxide (known so far), has been synthesized by encapsulation and by high pressure techniques. Suitable post chemical treatment of the as-prepared sample allowed us to eliminate the impurity phases. Bulk superconductivity with T-c = 6.4 K was observed in magnetization and specific heat measurements. The transition temperature of RbOs2O6 was found to be the same for both preparation methods. Structural investigations showed that Rb atoms occupy the 8b site in the pyrochlore lattice with a lattice parameter of 10.1137(1) Angstrom.

引用

页码：1169 / 1172

页数：4

共 12 条

[1]

BRUHWILER M, 2004, CONDMAT0403526

[2] Geometrically frustrated magnetic materials [J].

Greedan, JE .

JOURNAL OF MATERIALS CHEMISTRY, 2001, 11 (01) :37-53

[3] Superconductivity at 1 K in Cd2Re2O7 -: art. no. 187001 [J].

Hanawa, M ;

Muraoka, Y ;

Tayama, T ;

Sakakibara, T ;

Yamaura, J ;

Hiroi, Z .

PHYSICAL REVIEW LETTERS, 2001, 87 (18) :187001-1

[4] Superconducting properties of the pyrochlore oxide Cd2Re2O7 [J].

Hiroi, Z ;

Hanawa, M .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2002, 63 (6-8) :1021-1026

[5]

HIROI Z, 2004, CONDMAT0402006

[6] Superconductivity in the correlated pyrochlore Cd2Re2O7 -: art. no. 180503 [J].

Jin, R ;

He, J ;

McCall, S ;

Alexander, CS ;

Drymiotis, F ;

Mandrus, D .

PHYSICAL REVIEW B, 2001, 64 (18)

[7] Superconductivity in a pyrochlore oxide, Cd2Re2O7 [J].

Sakai, H ;

Yoshimura, K ;

Ohno, H ;

Kato, H ;

Kambe, S ;

Walstedt, RE ;

Matsuda, TD ;

Haga, Y .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2001, 13 (33) :L785-L790

[8] REVISED EFFECTIVE IONIC-RADII AND SYSTEMATIC STUDIES OF INTERATOMIC DISTANCES IN HALIDES AND CHALCOGENIDES [J].

SHANNON, RD .

ACTA CRYSTALLOGRAPHICA SECTION A, 1976, 32 (SEP1) :751-767

[9] OXIDE PYROCHLORES - A REVIEW [J].

SUBRAMANIAN, MA ;

ARAVAMUDAN, G ;

RAO, GVS .

PROGRESS IN SOLID STATE CHEMISTRY, 1983, 15 (02) :55-143

[10] New pyrochlore oxide superconductor RbOs2O6 [J].

Yonezawa, S ;

Muraoka, Y ;

Matsushita, Y ;

Hiroi, Z .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2004, 73 (04) :819-821

← 1 2 →