On the operator equivalents and the crystal-field and spin Hamiltonian parameters |
| |
Authors: | Ivan D. Ryabov |
| |
Affiliation: | (1) Laboratory of Physical Methods, Geological Institute, Russian Academy of Sciences, Moscow, Russian Federation;(2) Laboratory of Physical Methods, Geological Institute, Russian Academy of Sciences, Pyzhewsky pereulok 7, Moscow, 119017, Russian Federation |
| |
Abstract: | Operator equivalents used in magnetic resonance (electron paramagnetic resonance [EPR], electron-nuclear double resonance, nuclear magnetic resonance, etc.) are considered. The known non-Hermitian tensor operators O ±q (k) (0 ≤ q ≤ k) defined by D. Smith and J. H. M. Thornley (Proc. Phys. Soc. 89, 779–781, 1966) after H. A. Buckmaster (Can. J. Phys. 40, 1670–1677, 1962) are expressed in terms of Hermitian cosine and sine operators O kq c and O kq s. These new normalized operators are related to the nonnormalized extended Stevens operators O k q and O k −q ≡ Ω k q defined by C. Rudowicz (J. Phys. C.: Solid State Phys. 18, 1415–1430, 1985), which are commonly used in EPR of transition ions. The relations between O kq c,s and some other normalized operators occurring in the literature are also given. New crystal-field or spin Hamiltonian parameters B kq c and B kq s associated with the corresponding operators O kq c and O kq s are discussed. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|