Determining the crystal-field ground state in rare earth Heavy Fermion materials using soft-x-ray absorption spectroscopy
We infer that soft-x-ray absorption spectroscopy is a versatile method for the determination of the crystal-field ground state symmetry of rare earth heavy fermion systems, complementing neutron scattering. Using realistic and universal parameters, we provide a theoretical mapping between the polari...
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| Main Authors: | , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
14 February 2008
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| In: |
Physical review letters
Year: 2008, Volume: 100, Issue: 6 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.100.066405 |
| Online Access: | Verlag, Volltext: http://dx.doi.org/10.1103/PhysRevLett.100.066405 Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.100.066405 
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| Author Notes: | P. Hansmann, A. Severing, Z. Hu, M.W. Haverkort, C.F. Chang, S. Klein, A. Tanaka, H.H. Hsieh, H.-J. Lin, C.T. Chen, B. Fåk, P. Lejay, and L.H. Tjeng |
| Summary: | We infer that soft-x-ray absorption spectroscopy is a versatile method for the determination of the crystal-field ground state symmetry of rare earth heavy fermion systems, complementing neutron scattering. Using realistic and universal parameters, we provide a theoretical mapping between the polarization dependence of Ce M4,5 spectra and the charge distribution of the Ce 4f states. The experimental resolution can be orders of magnitude larger than the 4f crystal-field splitting itself. To demonstrate the experimental feasibility of the method, we investigated CePd2Si2, thereby settling an existing disagreement about its crystal-field ground state. |
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| Item Description: | Gesehen am 07.11.2017 |
| Physical Description: | Online Resource |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.100.066405 |