Abstract
High resolution interference and intermodulated optogalvanic saturation spectroscopy has been applied for isotope shift (IS) studies in the ground-configuration 4f 12 6s 2 of ErI. For the isotope pairs170–166Er and168–166Er the results confirm a strongJ- and term dependence of the IS caused through crossed-second-order (CSO) effects. We performed a parametric analysis to evaluate the CSO-parametersz 4f for the interpretation of theJ-dependence andT(3 H),T(3 F),T(1 G) to describe the term dependence. The following parameter values (in MHz) were determined, for170–166Er:z 4f =40.1(0.6),T(3 F)=−153(5),T(3 H)=−220(6), andT(1 G)=−79(4); for168–166Er:z 4f =20.1(0.7),T(3 F)=−77(6),T(3 H)=−111(7), andT(1 G) =−43(5). The normalization of these parameters with the corresponding nuclear parameters λ for both isotope pairs leads to almost identical parameter values indicating a dominant influence of the field shift effect in second-order for thez 4f parameter and in third-order for the parametersT(3 F),T(3 H), andT(1 G).
Similar content being viewed by others
References
Kronfeldt, H.-D., Seifert, P.: Z. Phys. D — Atoms, Molecules and Clusters8, 11 (1988)
Kronfeldt, H.-D., Klemz, G., Weber, D.-J.: Z. Phys. D — Atoms, Molecules and Clusters10, 103 (1988)
Seifert, P., Weber, D.-J., Kronfeldt, H.-D., Winkler, R.: Z. Phys. D — Atoms, Molecules and Clusters14, 99 (1989)
Kronfeldt, H.-D., Sinn, G.: Z. Phys. D — Atoms, Molecules and Clusters14, 205 (1989)
Kronfeldt, H.-D., Klemz, G., Weber, D.-J.: J. Phys. B23, 1107 (1990)
Kronfeldt, H.-D., Klemz, G.: Z. Phys. D — Atoms, Molecules and Clusters18, 131 (1991)
Kronfeldt, H.-D., Weber, D.-J.: Phys. Rev. A43, 4837 (1991)
Heilig, K.: Spectrochim. Acta42B, 1237 (1987) — and update Part IV; (Private communication)
Bauche, J., Champeau, R.-J.: Adv. At. Mol. Phys.12, 39 (1976)
Aufmuth, P., Steudel, A., Wöbker, E.: J. Phys. B21, 2237 (1988)
Sawatzky, G., Winkler, R.: Z. Phys. D — Atoms, Molecules and Clusters14, 9 (1989)
Kronfeldt, H.-D., Kropp, J.-R., Winkler, R.: J. Opt. Soc. Am. B1, 293 (1984)
Pfeufer, V., Childs, W.J., Goodman, L.S.: J. Phys. B16, L557 (1983)
Ross, J.S.: J. Opt. Soc. Am.62, 548 (1972)
Miller, G.E., Ross, J.S.: J. Opt. Soc. Am.66, 585 (1976)
Rao, P.M., Venugopalan, A., Ahmad, S.A., Saksena, G.D.: Indian J. Pure Appl. Phys.23, 208 (1985)
Kronfeldt, H.-D., Ashkenasi, D.: Laser Spectroscopy X, Ducloy, M., Giacobino, E., Camy, G. (eds.), London: World Scientific 1992, (in press)
Ashkenasi, D., Klemz, G., Kronfeldt, H.-D.: Optogalvanic spectroscopy, IOP publishing, Stewart, R.S., Lawler, J.E. (eds.), Inst. Phys. Conf. Ser. No. 113: Section 9, Bristol 289 (1991)
Childs, W.J., Goodman, L.S., Pfeufer, V.: Phys. Rev. A28, 3402 (1983)
Martin, W.C., Zalubas, R., Hagen, L.: Atomic Energy Levels — The Rare-Earth Elements, Natl. Bur. Stand. Ref. Ser., Natl. Bur. Stand. (U.S.) No. 60, Martin, W.C., Zalubas, R., Hagen, L. (eds.) (U.S. GPO, Washington, DC, 1978)
Held, S., Spector, N.: Israel Atomic Energy Commission, Soreq. Nuc. Res. Centre, IA-1354-T (1980) and IA-1385, IA-1385-T (1983)
Bauche, J., Keller, J.-C.: Phys. Lett.36A, 211 (1971)
Keller, J.-C.: J. Phys. B6, 1771 (1973)
Aufmuth, P., Heilig, K., Steudel, A.: At. Data Nucl. Data Tables37, 455 (1987)
Jin, W.G., Horiguchi, T., Wakasugi, M., Yoshizawa, Y.: J. Phys. Soc. Jpn.59, 3148 (1990)
Brüggemeyer, H.: Thesis, University Hannover (1987)
Bernard, A.: Thesis, University Hannover (1990)
Bauche, J., Champeau, R.-J., Sallot, C.: J. Phys. A10, 2049 (1977)
New, R., Griffith, J.A.R., Isaak, G.R., Ralls, M.P.: J. Phys. B14, L135 (1981)
Pfeufer, V., Childs, W.J., Goodman, L.S.: J. Opt. Soc. Am. B1, 34 (1984)
Aufmuth, P.: Z. Phys. A — Atoms and Nuclei286, 235, (1978)
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kronfeldt, H.D., Ashkenasi, D. & Nikseresht, H.M. Crossed-second-order effects in the isotope shift for170–166Er and168–166Er in the configuration 4f 12 6s 2 . Z Phys D - Atoms, Molecules and Clusters 22, 569–575 (1992). https://doi.org/10.1007/BF01426357
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01426357