1959
DOI: 10.1103/physrev.115.79
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Electron Paramagnetic Resonance in SrTiO3

Abstract: The intensities of paramagnetic resonance lines in SrTi0 3 have been correlated to the iron concentrations. Evidence for attributing the origin of the resonance in titanates to iron impurities (Fe 3+ ) rather than to the domain structure was obtained. In SrTi0 3 , resonance experiments over the temperature range 300°K to 1.9°K show a slow continuous increase of the tetragonal component of the crystalline field down to the ferroelectric region. From intensity considerations the absolute signs of the crystalline… Show more

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Cited by 26 publications
(3 citation statements)
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“…Pertinent quantities for these phenomena are the products of acoustic and thermal strains multiplied by spin-lattice coupling parameters and by matrix elements of angular-momentum operators, operating on the same wave functions in both cases. Such products essentially are corresponding transition probabilities and for the acoustic transition probability we write W ac = lg s {v)/W] | (4,(m) | L ac e ac | *(*»')> 1 2 sec" 1 , (8) where g 8 (v) is the shape function of the acoustic interaction; \f/(ni), ypimf) are the wave functions of the two levels involved, and L ac e is the Hamiltonian, Eq. (7), for a specific acoustic mode.…”
Section: Relation Between Acoustic Absorption Coefficient and Rementioning
confidence: 99%
See 1 more Smart Citation
“…Pertinent quantities for these phenomena are the products of acoustic and thermal strains multiplied by spin-lattice coupling parameters and by matrix elements of angular-momentum operators, operating on the same wave functions in both cases. Such products essentially are corresponding transition probabilities and for the acoustic transition probability we write W ac = lg s {v)/W] | (4,(m) | L ac e ac | *(*»')> 1 2 sec" 1 , (8) where g 8 (v) is the shape function of the acoustic interaction; \f/(ni), ypimf) are the wave functions of the two levels involved, and L ac e is the Hamiltonian, Eq. (7), for a specific acoustic mode.…”
Section: Relation Between Acoustic Absorption Coefficient and Rementioning
confidence: 99%
“…The dimensionality of Y^g and of Y& g is, respectively, 2 and 3; there are thus eight normal coordinates which can be found by means of projection operators 33 in terms of ordinary ion coordinates xi,yi,zi\ x 2j y2,z 2 ) •••, x 8 , y 8 , z 8 .…”
Section: Appendixmentioning
confidence: 99%
“…Also, the signs of the B 0 2 parameters in combination with the signs of other parameters of the spin Hamiltonian (1) determined in ref. [25] indicate that the crystal structure of the (001)-plates is compressed and that of the [001]-bar is expanded along the [001]-direction.…”
mentioning
confidence: 99%