磁控溅射是一种通用、成熟的薄膜制备工艺技术,其制备工艺可调剂参数较多,通过精细控制能够实现对薄膜结构的有效调控。本书研究了薄膜的工艺参数、薄膜结构与性能等之间的内在关系,探讨了薄膜的电子输运、光学带隙、热稳定性的有关物理量的变化机制。全书结构合理,条理清晰,内容丰富新颖,可供相关工程技术人员参考使用。
中国是世界上文明发达*早的国家之一,各民族的祖先共同创造了灿烂的古代科学文化,在化学领域中也曾有过广泛的开拓,虽然当时没有形成独立的学科,但也产生了不少意义重大的创造文明。
本书作者以传记方式分16章叙述了从古埃及时期到20世纪30年代化学发展的基本历程。本书内容丰富,取材翔实,从古老的炼金术到19世纪的化合价理论,再到20世界的周期律及原子结构,均有所涵盖。本书脉络清晰,观点客观、公正,目的在于为化学史提供一个简明而的综述,以利于读者对化学史产生整体的印象。
Let'egin by discussing what the discipline of theoretical chemistry is about. I think most young students of chemistry think that theory deals with using puters to model or simulate molecular behaviors. This is only partly true. Theory indeed contains under itroad umbrella the field of putational simulations,and it is such applications of theory that have gained much recent attention especially as powerful puters and user-friendly software packages have bee widely available. However, this discipline also involves analytical theory, which deals with how the fundamental equations used to perform the simulations are derived from the Schrrdinger equation or from classical mechanics, among other things. The discipline also has to do with obtaining the equations that relate laboratory data (e.g., spectra, heat capacities, reaction cross-sections) to molecular properties(e.g., geometries, bond energies, activation energies). This analytical side ofthe0ry is also where the equations of statistical mechanics that