Papers by Keyword: Electronic Materials

Abstract: The high sensitivity of positrons to directly probe atomic scale defects revealing their structure and characteristics makes it a unique tool in materials science research covering all types of materials from hard to soft matter. This review focuses on applications of positron annihilation spectroscopy (PAS) in hard materials. However, it is not intended as a comprehensive review of the foundations of positron annihilation spectroscopy and description of its techniques. These exist in numerous publications cited in this review. Instead, the aim here is to facilitate employing PAS and interpretation of its measurements by illustrating the advantages, limitations, and challenges and guiding the reader on how to overcome technical problems and how to interpret PAS results in meaningful ways. Applications of PAS in electronic and photonic materials, nuclear and irradiated materials, and engineering materials are discussed. Examples are given to guide the reader on how PAS can be combined with complementary methods to uncover the fundamentals of defect physics and reveal interesting new phenomena in condensed matter.

Abstract: In the new ages of application of applied technology and teaching form in every universities, many different modes have been tried and some roles can be seen clearly during the course. Learning efficiency and interpretation efficiency can also be seen during this course,and the author has studied information-applied technology and electronic materials for autonomous leaning of autonomous learners. Applied information technology is very necessary in this course for the urgent need for its developments. At the same time, the proper application of electronic materials is also analyzed, the author finds out that electronic materials have their own special classification and special characteristics. It is the special characteristics that make the electronic materials play more important roles in interpretation.