Transport and magnetic anomalies below 70 K in a hydrogen-cycled Pd foil with a thermally grown oxide

被引：52

作者：

Lipson, A

Heuser, BJ ^{[1
]}

Castano, C

Miley, G

Lyakhov, B

Mitin, A

机构：

[1] Univ Illinois, Dept Nucl Plasma & Radiol Engn, Urbana, IL 61801 USA

[2] Russian Acad Sci, Inst Phys Chem, Moscow 119915, Russia

[3] Russian Acad Sci, PL Kapitza Phys Problems Inst, Moscow 119334, Russia

来源：

PHYSICAL REVIEW B | 2005年 / 72卷 / 21期

关键词：

D O I：

10.1103/PhysRevB.72.212507

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electron transport and magnetic properties have been studied in a deformed 12.5-mu m-thick Pd foil with a thermally-grown oxide and a low residual concentration of hydrogen. This foil was deformed by cycling across the Pd hydride miscibility gap and the residual hydrogen was trapped at dislocation cores. Anomalies of both resistance and magnetic susceptibility have been observed below 70 K, indicating the appearance of excess conductivity and a diamagnetic response that we interpret in terms of filamentary superconductivity. These anomalies are attributed to a condensed hydrogen-rich phase at dislocation cores near the Pd-Pd oxide interface.

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页数：4

相关论文

共 22 条

[1] Properties of the pseudogap phase in high-Tc superconductors -: art. no. 104521 [J].

Abrikosov, AA .

PHYSICAL REVIEW B, 2001, 64 (10)

[2] FLUCTUATION AND ADMIXED SUPERCONDUCTIVITY IN PEROVSKITE-LIKE COMPOUNDS - PERSPECTIVES FOR THE INCREASE OF TC [J].

ALEKSEEVSKII, NE ;

MITIN, AV ;

NIZHANKOVSKII, VI ;

KHLYBOV, EP ;

KUZMICHEVA, GM .

PHYSICA B, 1990, 163 (1-3) :659-660

[3] Hydrogen dominant metallic alloys: High temperature superconductors? [J].

Ashcroft, NW .

PHYSICAL REVIEW LETTERS, 2004, 92 (18) :187002-1

[4] THE ELECTRON TRAP MECHANISM OF LUMINESCENCE IN SULPHIDE AND SILICATE PHOSPHORS [J].

GARLICK, GFJ ;

GIBSON, AF .

PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON, 1948, 60 (342) :574-590

[5] EVIDENCE FOR SUPERCONDUCTIVITY IN LA2CUO4 [J].

GRANT, PM ;

PARKIN, SSP ;

LEE, VY ;

ENGLER, EM ;

RAMIREZ, ML ;

VAZQUEZ, JE ;

LIM, G ;

JACOWITZ, RD ;

GREENE, RL .

PHYSICAL REVIEW LETTERS, 1987, 58 (23) :2482-2485

[6] Effect of dislocation trapping on deuterium diffusion in deformed, single-crystal Pd [J].

Heuser, BJ ;

King, JS .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1998, 29 (06) :1593-1598

[7] SANS measurements of deuterium-dislocation trapping in deformed single crystal Pd [J].

Heuser, BJ ;

King, JS .

JOURNAL OF ALLOYS AND COMPOUNDS, 1997, 261 (1-2) :225-230

[8]

Hirth J. P., 1982, THEORY DISLOCATIONS

[9] MAGNETIC SUSCEPTIBILITY OF PD, PDH AND PDD BETWEEN 4 AND 30 K [J].

JAMIESON, HC ;

MANCHESTER, FD .

JOURNAL OF PHYSICS F-METAL PHYSICS, 1972, 2 (02) :323-+

[10] INTERACTION OF HYDROGEN WITH DISLOCATIONS IN PALLADIUM .2. INTERPRETATION OF ACTIVITY RESULTS BY A FERMI-DIRAC DISTRIBUTION [J].

KIRCHHEIM, R .

ACTA METALLURGICA, 1981, 29 (05) :845-853