晶體結(jié)構(gòu)理論與應(yīng)用

　　In crystallography，crystal structure is a description of the ordered arrange-ment of atoms，ions or molecules in a crystalline material.Ordered structures oc-cur from the intrinsic nature ofthe constituent particles to form symmetric patterns that repeat along the principal directions of three-dimensional space in matter.The smallest group of particles in the material that constitutes this repeating pattern is the unit cell of the structure.The unit cell completely reflects the sym-metry and structure of the entire crystal，which is built up by repetitive translation of the unit cell along its principal axes.The translation vectors define the nodes of the Bravais lattice.The lengths of the principal axes，or edges，of the unit cell and the angles between them are the lattice constants，also called lattice parameters or cell para-meters.The symmetry properties of the crystal are described by the concept of space groups.All possible symmetric arrangements of particles in three-dimen-sional space may be described by the 230 space groups.The crystal structure and symmetry play a critical role in determining many physical properties，such as cleavage，electronic band structure，and optical trans-parency.In the present book，twenty-nine typical literatures about crystalline struc-ture published on international authoritative journals were selected to introduce the worldwide newest progress，which contains reviews or original researches on crystallography，crystalline material，electronic band structure and optical transpa-rency，etc.We hope this book can demonstrate advances in crystalline structure as well as give references to the researchers，students and other related people.

　　編委會成員由國內(nèi)外著名高校、科研中心及重點(diǎn)實(shí)驗(yàn)室專家組成，國際有哈佛大學(xué)、麻省理工學(xué)院、加州理工學(xué)院、牛津大學(xué)、劍橋大學(xué)、芝加哥大學(xué)、哥倫比亞大學(xué)、耶魯大學(xué)、康奈爾大學(xué)、賓夕法尼亞大學(xué)、帝國理工學(xué)院等，國內(nèi)有清華大學(xué)、北京大學(xué)、中國科學(xué)院、香港大學(xué)、武漢大學(xué)等。每分冊由10名相關(guān)領(lǐng)域的專家組成編委會，他們均為國內(nèi)外著名學(xué)府、科研中心及重點(diǎn)實(shí)驗(yàn)室一線工作科研專家。