Inhomogeneous Superconducting Behaviour in

被引：2

作者：

Falkowski, M. ^{[1
,2
]}

Kowalczyk, A. ^{[1
]}

Strydom, A. M. ^{[3
]}

Reiffers, M. ^{[4
]}

Tolinski, T. ^{[1
]}

机构：

[1] Polish Acad Sci, Inst Mol Phys, Smoluchowskiego 17, PL-60179 Poznan, Poland

[2] Charles Univ Prague, Fac Math & Phys, Ke Karlovu 5, CR-12116 Prague 2, Czech Republic

[3] Univ Johannesburg, Dept Phys, Highly Correlated Matter Res Grp, POB 524, ZA-2006 Auckland Pk, South Africa

[4] Univ Presov, Fac Humanities & Nat Sci, 17 Novembra 1, Presov 08116, Slovakia

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 2017年 / 189卷 / 1-2期

关键词：

Superconductivity; Crystal structure; Magnetic properties; Electron transport; Thermodynamic properties; ELECTRICAL-RESISTIVITY; MAGNETIC-PROPERTIES; HIGH-PRESSURE; TRANSPORT; CE5NI2SI3; LANIC2;

D O I：

10.1007/s10909-017-1794-y

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The superconducting phase transition at K was observed for the electrical resistivity and magnetic susceptibility measurements in the ternary compound La that crystallizes in the hexagonal-type structure. Although a single-phase character with the nominal stoichiometry of the synthesized sample was confirmed, a small trace of the La-Ni phase was found, being probably responsible for the superconducting behaviour in the investigated compound. The magnetization loop recorded at K resembles a star-like shape which indicates that the density of the critical current can be strongly suppressed by a magnetic field. The low- and specific heat data in the normal state reveal simple metallic behaviour. No clear evidence of a phase transition to any long- or short-range order was found for measurements in the T-range of 0.4-300 K.

引用

页码：120 / 131

页数：12

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