Download or read book Thermal and Electrical Conductivity of Impure Indium Antimonide written by R. Daniel Redin and published by . This book was released on 1965 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Thermal Conductivity and Seebeck Effect of Impure Indium Antimonide in a Magnetic Field written by Eldon F. Ault and published by . This book was released on 1964 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study was made of the thermal conductivity and Seebeck coefficient of a single crystal of InSb containing 3.3(10) to the 18th power tellurium atoms per cubic cm. Measurements were made in the temperature range of 338K to 648K and at magnetic fields between 1000 and 8000 Gauss. The electrical conductivity had a value of 5700/ (Ohm-cm) at 358K. The thermal conductivity, determined by the series comparison method with Inconel 702 as standards, decreased from 0.14 W/cmK at 338K to 0.091 W/cm-K at 648K. The Wiedemann-Franz ratio was used to determine the electronic component of the thermal conductivity from measured values of the electrical conductivity and amounted to 79% of the total thermal conductivity at 613K. The difference between the total thermal conductivity and the electronic component was attributed to conduction by the lattice. The lattice thermal resistance was approximately twice that of pure InSb. The Seebeck coefficient varied from -15 microvolts/K at 338K to -109 microvolts/K at 613K with the low-temperature values being less negative than theoretically predicted. (Author).

Download or read book High temperature Thermal Conductivity Measurements of Impure Indium Antimonide written by Orville C. Rodenberg and published by . This book was released on 1963 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: A series comparison method was employed in measuring thermal conductivity and effects of a magnetic field on transport properties of one sample of Bi8Te7S5 and on three heavily doped samples of p-type InSb. In each experimental run, a sample was sandwiched between two standards of Inconel 702, with low resistance thermal and electrical contacts provided by a cement composed of sodium silicate and graphite. Thermocouples of platinum and platinum plus ten percent rhodium were employed in measuring temperatures. Measurements were carried out in a vacuum of approximately 6(10) to the -5th power Torr. For each sample of InSb, the electronic contribution was calculated and then subtracted from the total to obtain the lattice thermal conductivity; the reciprocal of this is the lattice thermal resistivity W sub g. Contributions to W sub g from phonon scattering by phonons, impurities, and holes were estimated. Measurements of the relative change of thermal conductivity, electrical resistivity, and Seebeck coefficient were performed on all samples in a magnetic field of 8300 Gauss. In addition, the relative change in electrical resistivity was determined at 296 K on Bi8Te7S5 in fields ranging from 1000 to 8300 Gauss. (Author).

Download or read book Thermal Conductivity of Pure and Impure Indium Antimonide at Low Temperatures written by Emery J. Stephans and published by . This book was released on 1966 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thermal conductivity of pure and impure InSb was measured in the temperature range 77-300K. The samples were placed between two Armco-iron standards. Copper-constantan thermocouples were attached to the standard-sample-standard combination to monitor temperatures at various points of the sandwich. To increase confidence in the data, the 77-300K range was covered twice for each sample. Computer-assisted data processing was used to reduce the possibility of human error. The thermal conductivity of both samples decreased with increasing temperatures. Values of 1480 mW/cm deg K AT *)K and 174 mW/cm deg K at 303K were determined for the thermal conductivity of the pure InSb sample. Values of 370 mW/cm deg K at 79K and 77 mW/cm deg K at 302K were determined for the thermal conductivity of the impure InSb sample. The thermal conductivity plot for the impure InSb sample was fitted with a theoretical curve calculated on the basis of Holland's modification of the Callaway analysis. The model included boundary scattering, impurity scattering, and phonon-phonon scattering. The magnitude of the electron-phonon scattering term was estimated. Impurity and possibly electron-phonon scattering can be held responsible for the lower thermal conductivity of the impure sample. (Author).

Download or read book Indium Arsenide Data Sheets written by M. Neuberger and published by . This book was released on 1962 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thermal conduction in semiconductors written by J.R. Drabble and published by . This book was released on 1961 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1977 with total page 1078 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Indium Antimonide Data Sheets written by M. Neuberger and published by . This book was released on 1963 with total page 224 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 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Temperature Dependence of the Hall Coefficient and Electrical Conductivity of Indium Antimonide written by Raymond D. Dixon and published by . This book was released on 1965 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thermal Conductivity of Solids at Room Temperature and Below written by Gregg E. Childs and published by . This book was released on 1973 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NBS Monograph written by and published by . This book was released on 1959 with total page 620 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Abstract Bulletin written by and published by . This book was released on with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Government wide Index to Federal Research Development Reports written by and published by . This book was released on 1966 with total page 1336 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Thermal Conductivity of Indium Antimonide written by Eugenie V. Mielczarek and published by . This book was released on 1956 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Electrical and Thermal Properties of Impure Single Crystals of Superconductors written by Charles A. Reynolds and published by . This book was released on 1970 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effect of crystal orientation and type and amount of impurities on the electrical resistivity, thermal conductivity and superconductivity transition curve of tin and indium has been investigated. The electrical resistance of tin samples with cadmium, antimony, indium and zinc impurities has been measured as a function of impurity content at 373K, 273K, 77K and 4.2K. The change in anisotropy with impurity type is explained on the basis of a theory of Klemens. Lately some samples have been measured over the continuous range from 4.2K to 77K and some interesting effects found. The effect of the above mentioned impurities on the superconducting transition curve of tin has been found and agreement with the theory of them has been demonstrated. Also studied was the thermal and electrical conductivities of dilute Au:Fe, and the lattice thermal conductivity of Cu:Al. (Author).

Download or read book Semiconducting III V Compounds written by C. Hilsum and published by Elsevier. This book was released on 2014-07-17 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiconducting III-V Compounds deals with the properties of III-V compounds as a family of semiconducting crystals and relates these compounds to the monatomic semiconductors silicon and germanium. Emphasis is placed on physical processes that are peculiar to III-V compounds, particularly those that combine boron, aluminum, gallium, and indium with phosphorus, arsenic, and antimony (for example, indium antimonide, indium arsenide, gallium antimonide, and gallium arsenide). Comprised of eight chapters, this book begins with an assessment of the crystal structure and binding of III-V compounds, focusing on the properties of the zinc-blende structure as well as processes ranging from ionicity and infrared lattice absorption to electronegativity. The reader is then introduced to the band structure of III-V compounds and its theoretical aspects, along with cyclotron resonance and the diamagnetic Landau effect. Subsequent chapters discuss impurities and defects; optical and electrical properties; photoelectric effects; and preparation and applications of III-V compounds. This monograph will be of interest to physicists.