Multiphonon Processes of the 4T1g(I) Absorption in RbMnF3

Heumüller, R.; Gebhardt, W.; Osten, W. von der

doi:10.1002/pssb.2220700110

Cited by 9 publications

(4 citation statements)

References 27 publications

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“…This result is in, agreement with references [3] and [4] where high order multiphonon processes are needed to explain the general 4T2g(I) absorption bandshape.…”

Section: Following Schnatterly [7] and Solomon And Mcclure [3]supporting

confidence: 92%

“…-Figures 4-7 report the results of SLD studies on the remaining orbital triplet states. In particular, our purpose was to compare the direct measurement of the shift of the e 1 and e2 magnetic dipole origins of the 4T 1 (1) state [1,4] under an applied stress along 001 ) and 111 j to that of the corresponding spin wave sidebands as reported earlier [1,3]. The SLD allows this behaviour to be followed accurately to high stress ( Figs.…”

Section: Following Schnatterly [7] and Solomon And Mcclure [3]mentioning

confidence: 99%

“…Introduction. -In previous papers [1][2][3][4], the experimental and theoretical study of Jahn-Teller effects in the four lowest orbital triplet excited states of Mn++ in RbMnF3 was reported. These studies showed the 'Aig-->'T2g(l) transition art -22 000 cm-1 to be unique in that it is always structureless as compared to other Mn + + transitions in antiferromagnetic materials which show a great deal of sharp structure below 20 K. This lack of structure which is difficult to interpret considering that the magnitude of the lattice interactions for the 4T2g(I) state seems to be very similar to that of the highly structured 4T 1g(I) transition [3], precluded the detailed spectroscopic studies which were performed on the other transitions.…”

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confidence: 99%

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Piezospectroscopic studies of the triplet states of RbMnF3

1979

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2014 Nous présentons ici une étude piézospectroscopique des bandes d'absorption de RbMnF3 provenant des transitions optiques 6A1g ~ 4T1g(I, II), 4T2g(I, II). Nous en avons déduit les paramètres de couplage avec les modes de vibration Eg et T2g pour la bande d'absorption 4T2g qui ne présente pas de structure fine. Nous avons analysé le comportement piézospectroscopique de la transition dipolaire magnétique 6A1g ~ 4T1g(I) afin de déduire directement les paramètres de couplage associés dont la valeur est en bon accord avec nos calculs antérieurs. Abstract. 2014 We present piezospectroscopic studies of the absorption bands due to the 6A1g ~ 4T1g(I, II), 4T2g(I, II) optical transitions of RbMnF3. For the 4T2g unstructured absorption band we have deduced the coupling parameters involving the Eg and T2g modes of vibration. The piezospectroscopic behaviour of the 6A1g ~ 4T1g(I) magnetic dipole transition is analysed to directly obtain the coupling parameters which are found to be in agreement with our previous calculations.

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“…This result is in, agreement with references [3] and [4] where high order multiphonon processes are needed to explain the general 4T2g(I) absorption bandshape.…”

Section: Following Schnatterly [7] and Solomon And Mcclure [3]supporting

confidence: 92%

Section: Following Schnatterly [7] and Solomon And Mcclure [3]mentioning

confidence: 99%

mentioning

confidence: 99%

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Piezospectroscopic studies of the triplet states of RbMnF3

1979

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“…From the 4T1g absorption bandshape of the complex only a total S = 4 + 5 can be estimated because the zero-phonon transition is completely obscured. Its position and oscillator strength are needed for a deconvolution [18]. From the 6r derived and the other appropriate parameters, the Huang-Rhys parameter for the ulg to 4T1, coupling of the [Mn(OH2)6]2+ complex is obtained:…”

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confidence: 99%