Year: 1984
Type: article
Abstract: During an ESR experiment in metal powder heat is supplied to the sample by an RF power and therefore its temperature may be higher than that of the surrounding coolant. In order to minimise this effect the authors have built a single quartz crystal sample holder. In addition, they have mixed the metal powder with quartz powder obtained by grinding a monocrystal and pressed the mixture into the holder. This has largely increased the heat flow from the sample and reduced the temperature difference between the sample and the surrounding coolant, compared with the usual procedure where fused silica glass tube is used as a sample holder and the metal powder is mixed with paraffin. This improvement can be particularly important when using high RF power. The effectiveness of the quartz holder was demonstrated in the measurement of the ESR of TiBe 2 at liquid He temperature range as compared with a conventional holder.
Authors: D Ioshpe, D Shaltiel
Institution: Hebrew University of Jerusalem
Language: English
Subfield: Spectroscopy
Field: Chemistry
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W2092121177