Nonmetallic crystals with high thermal conductivity

Publisher Summary The physical properties given in this compilation are listed in the accompanying tabulation according to the table given in this chapter in which they can be found. Values for two quantities that have frequently been used in alloying theory studies, viz., the metallic radius and electronegativity, are not included here. Other properties, such as magnetic susceptibility, electrical resistivity, and thermal conductivity, which are generally of interest to those studying solids, are not included in this compilation primarily because such properties do not appear to be important in alloying theory. The derived properties and some interrelationships of the physical properties are examined and discussed in this chapter. Those subjects which also appear in tabulated form are listed in the accompanying tabulation. The initial goal in our alloy-theory program was a set of Gruneisen constants and a set of size factors. To calculate these quantities, almost all of the physical properties given herein are needed in the computations. Some of the other derived quantities are not only intermediate steps in the computations of the Gruneisen constant and size factor, but also serve as checks on the consistency of initial data (i.e., the measured physical properties of the elements). Some of the “constants” of the elements—that is, the Griineisen constant, entropy of fusion, etc., which have been derived for a few elements and then generally assumed to apply to all elements—are examined to see if this generalization is valid.

Physical Properties and Interrelationships of Metallic and Semimetallic Elements

Studies of the thermal expansion of solids in the temperature range 1–100 K are reviewed. Effects due to thermal vibrations of the lattice, electrons, magnetic interactions and defects are fully discussed. The survey of experimental data is intended to be comprehensive. From the large volume of theoretical work in recent years the authors have aimed to select for discussion the most significant contributions.

Thermal expansion of solids at low temperatures

Studies of the thermal expansion of solids in the temperature range 1–100 K are reviewed. Effects due to thermal vibrations of the lattice, electrons, magnetic interactions and defects are fully di...

Thermal Expansion of Solids at Low Temperatures

Heat capacities of pure silicon and germanium have been measured between 2.5° and 300°K. The estimated accuracies of the measurements are ±0.5% for 10° 20°K. The results for silicon were anomalous in the region T <7°K; it is suggested that this behaviour resulted from adsorption and desorption of exchange gas in the calorimeter vessel. No anomalies were observed in the measurements on germanium; their accuracy at the lowest temperatures is estimated to be ±2%. The results for both substances are significantly different from previously published values. The temperature variation of ΘD of both silicon and germanium below about T= ΘD/3 is consistent with general harmonic theory, but at high temperatures ΘD decreases with increasing temperature. This appears to be a clearly marked anharmonic effect of a type that cannot be explained by change of volume alone. The results for T < ΘD/3 are therefore extrapolated to high temperatures to give a heat capacity consistent with h...

The heat capacity of pure silicon and germanium and properties of their vibrational frequency spectra

The temperature dependence of the specific heat of solids at very low temperatures is examined, using theoretical models and certain recent experimental results. The temperature region over which t...

On the specific heat of solids at low temperatures

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

J. A. Morrison

Author Tools

Chat about Author

Papers

On the specific heat of solids at low temperatures