The Frequency Change By Impurities In One Dimensional Atomic Chain

Recently, people have been paid more attention to nanomaterials and single molecule manipulation technology. Realizing the processes of making material on nanometer yardstick, and the monoatomic, single molecule electronic device through the atom, molecule manipulation is the goal that people have pursued all the time. As the constant development of the single molecule manipulation technology, the dream of single molecule manipulation has came true. We can already structure the atom device that we needed with atom by the thought which is different from the past. In the same time this made the modulation of the fundamental properties of the material became possible through changing the microstructure of the material. The understanding of the material properties is rely on the study of the small yardstick material's lattice vibration, phonon structure and electronic structure.In this thesis we have studied the lattice vibration of one dimensional atomic chain, researched the lattice vibration and the location of the localized modal while adding the impurity atom.In the first chapter introduced the overview of single molecule manipulation technology. The theory of the atom, molecule manipulation has been introduced by electric field, atomic force, and optical separately. Especially explained Scanning Tunneling Microscope, Atomic Force Microscope, and Optical Tweezers.In the second chapter we introduced the lattice vibration of the integrated lattice, discussed the one dimensional monoatomic chain and one dimensional diatomic chain, and drew out clear picture of the lattice...