Preparation and Crystal Growth of Materials with Layered Structures

Preparation and Crystal Growth of Materials with Layered Structures
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DOI:
10.1007/978-94-017-2750-1
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发表时间:
1977
期刊:
--
影响因子:
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通讯作者:
R. Lieth
R. Lieth
中科院分区:
其他
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作者:
R. Lieth

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层状结构材料的物理和化学系列的目标是对我们目前对一大类材料的了解进行批判性的调查,这些材料可以被描述为含有分子的固体,这些分子在二维上延伸到无穷大,并且松散地堆叠在一起形成三维晶体。当然,这些晶体的物理和化学是普通固态科学中的特定章节,许多寻找新现象的科学家过去都失望地发现,具有层状结构的材料并不完全是奇异的。它们的电子和声子态不是二维的,一些人对超导中壮观的维度效应抱有的厚望破灭了。然而,结构特征及其物理和化学后果足以使层状结构单一化,使其成为令人着迷的研究课题。更是如此,因为它们在绝缘体和半导体以及普通金属和超导金属中都存在。尽管目前该系列有意仅限于仅涵盖无机材料,但许多已知的有机层状结构很可能成为未来各卷的主题。在层状结构的值得注意的特性中,我们提到了特定的生长机制和晶体习性。多型现象非常常见,在同一种化学物质中发现多达 240 种不同的多型确实令人着迷。
The goal of the series Physics and Chemistry of Materials with Layered Structures is to give a critical survey of our present knowledge on a large family of materials which can be described as solids containing molecules which in two dimensions extend to infinity and which are loosely stacked on top of each other to form three dimensional crystals. Of course, the physics and chemistry of these crystals are specific chapters in ordinary solid state science, and many a scientist hunting for new phenomena has in the past been disappointed to find that materials with layered structures are not entirely exotic. Their electron and phonon states are not two dimensional, and the high hopes held by some for spectacular dimensionality effects in superconductivity were shattered. Nevertheless, the structural features and their physical and chemical consequences singularize layered structures sufficiently to make them a fascinating subject of research. This is all the more true since they are met in insulators and semiconductors as well as in normal and superconducting metals. Although for the time being the series is intentionally limited to cover inorganic materials only, the many known organic layered structures may well be the subject of future volumes. Among the noteworthy peculiarities of layered structures, we mention specific growth mechanisms and crystal habits. Polytypism is very common and it is fasci nating indeed to find up to 240 different polytypes in the same chemical substance.