Self-organized layered hydrogenation in black Mg2NiHx switchable mirrors -: art. no. 197404

被引：66

作者：

Lohstroh, W ^{[1
]}

Westerwaal, RJ ^{[1
]}

Noheda, B ^{[1
]}

Enache, S ^{[1
]}

Giebels, IAME ^{[1
]}

Dam, B ^{[1
]}

Griessen, R ^{[1
]}

机构：

[1] Vrije Univ Amsterdam, Fac Sci, Dept Phys & Astron, NL-1081 HV Amsterdam, Netherlands

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.93.197404

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In addition to a mirrorlike (Mg2Ni) and a transparent (Mg2NiH4) state, thin films of Mg2NiHx exhibit a remarkable black state with low reflection over the entire visible spectrum, essentially zero transmission and a low electrical resistivity. Such a black state is not explicable for a homogeneous layer since a large absorption coefficient always yields substantial reflection. We show that it results from a self-organized and reversible double layering of metallic Mg2NiH0.3 and semiconducting Mg2NiH4.

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页码：197404 / 1

页数：4

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