EPR spectrum, ruby, pressure, calibration, high pressure
The variation in the electron paramagnetic resonance (EPR) spectrum of ruby as a function of pressure has been observed to beyond 70 kbar for a magnetic field orientation parallel to the crystalline c axis. The data can be interpreted in terms of the usual spin Hamiltonian, where the spectroscopic splitting factor g|| has the same value as at ambient pressures, but where the zero-field splitting deltaincreases in a linear fashion from 0.38 to 0.43 cm. The experimental apparatus has been described previously, although important improvements in the pressure seal and in the pressure calibration have been made and are described in an Appendix.
Original Publication Citation
Nelson, H. M., D. B. Larson, and J. H. Gardner."Very High Pressure Effects upon the EPR Spectrum of Ruby." The Journal of Chemical Physics 47 (1967): 1994-1998.
BYU ScholarsArchive Citation
Nelson, H. Mark; Larson, D. B.; and Gardner, J. H., "Very High Pressure Effects upon the EPR Spectrum of Ruby" (1967). All Faculty Publications. 804.
Physical and Mathematical Sciences
Physics and Astronomy
© 1967 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in The Journal of Chemical Physics and may be found at http://link.aip.org/link/?JCPSA6/47/1994/1
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