Abstract
The magneticΓ 1 –Γ 4 exciton of the singlet ground state system TbP has been studied by inelastic neutron scattering above the antiferromagnetic ordering temperature. Considerable dispersion and a pronounced splitting was found in the [100] and [110] directions. Both the band width and the splitting increased rapidly as the transition temperature was approached in accordance with the predictions of the RPA-theory. The dispersion is analysed in terms of a phenomenological model using interactions up to the fourth nearest neighbour.
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References
Fulde, P.: Crystal Fields. In: Handbook on the Physics and Chemistry of Rare Earths, Gscheidner, K.A., Eyring, L. (eds.). p.296. Amsterdam: North Holland Publishing 1978
Als-Nielsen, J., Kjems, J.K., Buyers, W.J.L., Birgeneau, R.J.: J. Phys. C10, 2673 (1977)
Birgeneau, R.J., Als-Nielsen, J., Bucher, E.: Phys. Rev. Lett.27, 153 (1971)
Holden, T.M., Svensson, E.C., Buyers, W.J.L., Vogt, O.: Phys. Rev. B10, 3864 (1974)
Houmann, J.G., Chapperlier, M., Mackintosh, A.R., Bak, P., Mcmasters, O.D., Gschneidner, K.A. Jr.: Phys. Rev. Lett.34, 587 (1975)
Birgeneau, R.J., Bucher, E., Maita, J.P., Passell, L., Turberfield, K.C.: Phys. Rev. B8, 5345 (1973)
Bucher, E., Maita, J.P., Hull, G.W. Jr., Longinotti, L.D., Lüthi, B., Wang, P.S.: Z. Physik B25, 41 (1976)
Child, H.R., Wilkinson, M.K., Cable, J.W., Koehler, W.C., Wollan, E.O.: Phys. Rev.131, 922 (1963)
Levy, F.: Phys. Kond. Mat.10, 85 (1969)
Kötzler, J., Raffius, G., Loidl, A., Zeyen, C.M.E. to be published in Z. Physik B
Marshall, W., Lovesey, S.W.: Theory of thermal Neutron Scattering, Oxford: University Press 1971
Chesser, N.Y., Axe, Y.D.: Acta Cryst. A29, 160 (1973)
Holden, T.M., Buyers, W.J.L.: Phys. Rev. B9, 3797 (1974)
Buyers, W.J.L.: AIP Conf. Proc. 24, p. 27 (1974)
Kaplan, T.A., Lyon, D.H.: Phys. Rev.129, 2072 (1963)
Vettier, C., McWhan, D.B., Blount, E.I., Shirane, G.: Phys. Rev. Lett.39, 1028 (1977)
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Loidl, A., Knorr, K., Kjems, J.K. et al. Singlet ground state magnetism: II. magnetic excitons in paramagnetic TbP. Z Physik B 35, 253–259 (1979). https://doi.org/10.1007/BF01319845
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DOI: https://doi.org/10.1007/BF01319845