Determining the crystal-field ground state in rare earth heavy fermion materials using soft-X-ray absorption spectroscopy

Hansmann P, Severing A, Hu Z, Haverkort MW, Chang CF, Klein S, Tanaka A, Hsieh HH, Lin HJ, Chen CT, Fak B, Lejay P, Tjeng LH (2008)


Publication Type: Journal article

Publication year: 2008

Journal

Book Volume: 100

Journal Issue: 6

DOI: 10.1103/PhysRevLett.100.066405

Abstract

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 M-4,M-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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APA:

Hansmann, P., Severing, A., Hu, Z., Haverkort, M.W., Chang, C.F., Klein, S.,... Tjeng, L.H. (2008). Determining the crystal-field ground state in rare earth heavy fermion materials using soft-X-ray absorption spectroscopy. Physical Review Letters, 100(6). https://doi.org/10.1103/PhysRevLett.100.066405

MLA:

Hansmann, Philipp, et al. "Determining the crystal-field ground state in rare earth heavy fermion materials using soft-X-ray absorption spectroscopy." Physical Review Letters 100.6 (2008).

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