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This technique is more sensitive to the sample dimensions than the electrical techniques and is thus inherently less accurate. Furthermore, when using this method to determine the temperature variation of the resistivity, it is important that corrections for thermal expansion be applied. Chapter 3 Explanation of graphs G. 1 Data analysis The majority of the data presented in this handbook has been gleaned from material published over the last two decades. The data has been extracted from the original published paper or book.

3. The mutual inductance technique relies on exactly the same parameters as the self-inductance method; the uncertainties involved are again those associated with the measurement of sample and coil dimensions and hence the achievable accuracy in the determination of the resistivity is similar. 3 Inductive techniques and temperature variations The primary purpose of using eddy current techniques is to avoid physical contact with the sample. When determining the resistivity as a function of temperature, the sample should be in an isothermal enclosure with the temperature of the enclosure monitored with an appropriate thermometric device such as a thermocouple, resistance thermometer or pyrometer.

First, the materials are listed in alphabetical order; where a material has several elements, they are listed in order of decreasing atomic percentage. Should a material have elements all having equal atomic percentage then they are listed in alphabetical order. Data which has been presented in the original paper in graphical form and extracted is indicated by an asterisk (*) against the reference number in question. Data presented, in the original form, in tabular format is indicated by the absence of an asterisk against the reference number.

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