STRUCTURAL REINVESTIGATION OF (LAS)1.14NBS2 AND RESISTIVITY MEASUREMENTS

被引：22

作者：

MEERSCHAUT, A ^{[1
]}

RABU, P ^{[1
]}

ROUXEL, J ^{[1
]}

MONCEAU, P ^{[1
]}

SMONTARA, A ^{[1
]}

机构：

[1] CNRS,CTR RECH TRES BASSES TEMP BOITE,BP 166X,F-38042 GRENOBLE,FRANCE

来源：

MATERIALS RESEARCH BULLETIN | 1990年 / 25卷 / 07期

关键词：

D O I：

10.1016/0025-5408(90)90062-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The structure of (LaS)1.14NbS2 has been reexamined through a supercell approach using the Bb2b non-centrosymmetric space group instead of the centrosymmetric one Bbcb previously reported (1). Now, the reliability factor stabilizes at a much lower value (R = 0.067 to compare with R = 0.155) for 830 reflexions with I > 3σ(I). Resistivity measurements made on single crystals indicate a metallic behaviour and a transition to a superconducting state below Tc = 2.43 K. © 1990.

引用

页码：855 / 861

页数：7

共 10 条

[1]

MACKOVICKY E, 1981, STRUCT BOND, V46, P101

[2] PREPARATION AND CHARACTERIZATION OF NEW MIXED SANDWICHED LAYERED COMPOUNDS LA32NB28S88 CE32NB28S88 [J].

MEERSCHAUT, A ;

RABU, P ;

ROUXEL, J .

JOURNAL OF SOLID STATE CHEMISTRY, 1989, 78 (01) :35-45

[3] THE INCOMMENSURATE MISFIT LAYER STRUCTURE OF (SNS)1.17NBS2, SNNBS3 .1. A STUDY BY MEANS OF X-RAY-DIFFRACTION [J].

MEETSMA, A ;

WIEGERS, GA ;

HAANGE, RJ ;

DEBOER, JL .

ACTA CRYSTALLOGRAPHICA SECTION A, 1989, 45 :285-291

[4] SUPERCONDUCTIVITY IN PBNBS3 AND PBTAS3 [J].

SCHMIDT, L .

PHYSICS LETTERS A, 1970, A 31 (10) :551-&

[5]

Smontara A., 1989, Fizika, V21, P201

[6] A SUPERSPACE GROUP DESCRIPTION OF THE MISFIT LAYER STRUCTURE OF (SNS)1.17(NBS2) [J].

VANSMAALEN, S .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1989, 1 (17) :2791-2800

[7] STRUCTURE AND PHYSICAL-PROPERTIES OF (SNS)1.18NBS2,SNNBS3, A COMPOUND WITH MISFIT LAYER STRUCTURE [J].

WIEGERS, GA ;

MEETSMA, A ;

HAANGE, RJ ;

DEBOER, JL .

MATERIALS RESEARCH BULLETIN, 1988, 23 (11) :1551-1559

[8] ELECTRICAL TRANSPORT AND MAGNETIC-PROPERTIES OF THE MISFIT LAYER COMPOUND (LAS)1.14NBS2 [J].

WIEGERS, GA ;

HAANGE, RJ .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1990, 2 (02) :455-463

[9] MISFIT LAYER COMPOUNDS (MS)NTS2 (M = SN, PB, BI, RARE-EARTH ELEMENTS - T = NB, TA - N = 1.08 - 1.19), A NEW CLASS OF LAYER COMPOUNDS [J].

WIEGERS, GA ;

MEETSMA, A ;

VANSMAALEN, S ;

HAANGE, RJ ;

WULFF, J ;

ZEINSTRA, T ;

DEBOER, JL ;

KUYPERS, S ;

VANTENDELOO, G ;

VANLANDUYT, J ;

AMELINCKX, S ;

MEERSCHAUT, A ;

RABU, P ;

ROUXEL, J .

SOLID STATE COMMUNICATIONS, 1989, 70 (04) :409-413

[10]

WIEGERS GA, 1990, IN PRESS ACTA CRYS B

← 1 →