Superconductivity and structure of gallium under nanoconfinement

被引：28

作者：

Charnaya, E. V. ^{[1
]}

Tien, Cheng ^{[1
,2
]}

Lee, Min Kai ^{[1
]}

Kumzerov, Yu A. ^{[3
]}

机构：

[1] Natl Cheng Kung Univ, Dept Phys, Tainan 70101, Taiwan

[2] Natl Cheng Kung Univ, Ctr Micro Nano Sci Technol, Tainan 70101, Taiwan

[3] RAS, AF Ioffe Physicotech Inst, St Petersburg 194021, Russia

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2009年 / 21卷 / 45期

关键词：

FREEZING PHASE-TRANSITIONS; CRYSTAL-STRUCTURE; X-RAY; GA;

D O I：

10.1088/0953-8984/21/45/455304

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Superconductivity and crystalline structure were studied for two nanocomposites consisting of gallium loaded porous glasses with different pore sizes. The superconducting transition temperatures were found to differ from those in known bulk gallium modifications. The transition temperatures 7.1 and 6.7 K were ascribed to two new confined gallium structures, iota- and kappa-Ga, observed by synchrotron radiation x-ray powder diffraction. The evolution of superconductivity on decreasing the pore filling with gallium was also studied.

引用

页数：6

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