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Positron Annihilation In Single Crystals Of Copper Zinc And Magnesium
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Book Synopsis Positron Annihilation in Single Crystals of Copper, Zinc, and Magnesium by : Eugene Melvin Donald Senicki
Download or read book Positron Annihilation in Single Crystals of Copper, Zinc, and Magnesium written by Eugene Melvin Donald Senicki and published by . This book was released on 1972 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Positron Annihilation in Single Crystals of Copper, Zinc and Magnesium [microform] by : Eugene Melvin Donald Senicki
Download or read book Positron Annihilation in Single Crystals of Copper, Zinc and Magnesium [microform] written by Eugene Melvin Donald Senicki and published by National Library of Canada. This book was released on 1972 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Positron Annihilation in Single Crystal Zinc at 25 Degrees Centigrade by : Jon Wayne Swanson
Download or read book Positron Annihilation in Single Crystal Zinc at 25 Degrees Centigrade written by Jon Wayne Swanson and published by . This book was released on 1968 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Positron Annihilation Spectroscopic Studies of Undoped N-Type Zinc Oxide Single Crystal by : Chun-Wai Hui
Download or read book Positron Annihilation Spectroscopic Studies of Undoped N-Type Zinc Oxide Single Crystal written by Chun-Wai Hui and published by Open Dissertation Press. This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Positron Annihilation Spectroscopic Studies of Undoped N-type Zinc Oxide Single Crystal" by Chun-wai, Hui, 許俊偉, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of thesis entitled POSITRON ANNIHILATION SPECTROSCOPIC STUDIES OF UNDOPED N-TYPE ZINC OXIDE SINGLE CRYSTAL submitted by HUI CHUN WAI for the Degree of Master of Philosophy at The University of Hong Kong in August 2006 Positron lifetime spectroscopy and coincidence Doppler broadening spectroscopy (CDBS) were used to study the defects in two pieces of hydrothermal (HT) grown ZnO single crystal samples (HT1 and HT2) obtained from two different companies, namely University Wafer, US, and MaTecK, Germany. Single component model could offer good fitting to the lifetime spectra of HT1 and HT2 at temperatures ranging from 25K to 285K. The room temperature positron lifetimes of HT1 and HT2 were found to be 191ps and 181 ps, respectively. The observation was associated with saturated positron trapping into two different Zn-vacancy related defects existing in the two samples. For HT1, the lifetime was observed to be temperature independent. However for HT2, the lifetime had constant value with temperature higher than 200K. It then decreased with decreasing temperature and reached the value of 172ps at 30K. This temperature dependence of lifetime could be explained by the presence of an additional positron shallow trap. Positron-electron autocorrelation function (AF) was extracted from the CDBS spectra. The obtained AF mappings of HT1 and HT2 at room temperature confirmed that the defects existing in HT1 and HT2 should have different microstructures. Positron lifetime spectroscopy was also performed on undoped pressurized melted grown n-type ZnO single crystal. Two-component model was required to give good description to the lifetime spectra. The two lifetime components were found to have temperature independent values of 181ps and 366ps, which were attributed to saturated positron trapping into two defects, V related defect and vacancy cluster respectively. Zn DOI: 10.5353/th_b3857339 Subjects: Positron annihilation Zinc oxide Compound semiconductors - Spectra
Book Synopsis Positrons and Positronium by : Y. C. Jean
Download or read book Positrons and Positronium written by Y. C. Jean and published by Elsevier Publishing Company. This book was released on 1988 with total page 1260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Defect Studies of Single Crystal and Thin Film Zinc Oxide by Positron Annihilation Spectroscopy and Cathodoluminescence by : Chun-Kit To
Download or read book Defect Studies of Single Crystal and Thin Film Zinc Oxide by Positron Annihilation Spectroscopy and Cathodoluminescence written by Chun-Kit To and published by . This book was released on 2017-01-26 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Positron Annihilation Spectroscopic Studies of Undoped N-type Zinc Oxide Single Crystal by : Chun-wai Hui
Download or read book Positron Annihilation Spectroscopic Studies of Undoped N-type Zinc Oxide Single Crystal written by Chun-wai Hui and published by . This book was released on 2006 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1994 with total page 1028 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Book Synopsis Catalog of Technical Reports by : United States. Dept. of Commerce. Office of Technical Services
Download or read book Catalog of Technical Reports written by United States. Dept. of Commerce. Office of Technical Services and published by . This book was released on with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INIS Atomindeks written by and published by . This book was released on 1988 with total page 584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Positron Annihilation in Na and Li Single Crystals by :
Download or read book Positron Annihilation in Na and Li Single Crystals written by and published by . This book was released on 1964 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1982 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Positron Annihilation by : A.T. Steward
Download or read book Positron Annihilation written by A.T. Steward and published by Elsevier. This book was released on 2012-12-02 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: Positron Annihilation focuses on the process of positron annihilation in different environments. Partitioned into two parts with 42 chapters, the book contains the contributions of authors who have done research on the annihilation of positrons, which brought about valuable information on the properties of matter. The first part of the book deals with lengthy review articles, including a survey of the physics of positron annihilation; positron annihilation in metals and the theory involved in the process; and positron annihilation in alkali halides and ionic crystals. Positronium formation and interaction in gases, molecular substances, and ionic crystals are also given attention. Gaseous positronics and positron annihilation in condensed gases and liquids are also discussed. The second part of the book focuses on developments on positron annihilation and the direction of research on this field. The studies concentrate on positron annihilation in various crystals, metals, mercury, liquefied gases, helium, and metal oxides. Numerical representations and analyses are presented to support the processes involved. The book can best serve the interest of those who want to explore further the annihilation of positrons.
Book Synopsis Defect Studies of Single Crystal and Thin Film Zinc Oxide by Positron Annihilation Spectroscopy and Cathodoluminescence by : Chun-kit To
Download or read book Defect Studies of Single Crystal and Thin Film Zinc Oxide by Positron Annihilation Spectroscopy and Cathodoluminescence written by Chun-kit To and published by . This book was released on 2010 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics Briefs written by and published by . This book was released on 1987 with total page 810 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Positron Annihilation in Single Crystal Rubidium and Cesium at High Pressure by : George Marston Beardsley
Download or read book Positron Annihilation in Single Crystal Rubidium and Cesium at High Pressure written by George Marston Beardsley and published by . This book was released on 1970 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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