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.
Authors with CRIS profile
Involved external institutions
Universität zu Köln
Germany (DE)
National Defense University (NDU) / 國防大學
Taiwan (TW)
National Synchrotron Radiation Research Center (NSRRC)
Taiwan (TW)
National Center for Scientific Research / Centre national de la recherche scientifique (CNRS)
France (FR)
Hiroshima University / 広島大学
Japan (JP)
French Alternative Energies and Atomic Energy Commission (CEA)
France (FR)
Germany (DE)
National Defense University (NDU) / 國防大學
Taiwan (TW)
National Synchrotron Radiation Research Center (NSRRC)
Taiwan (TW)
National Center for Scientific Research / Centre national de la recherche scientifique (CNRS)
France (FR)
Hiroshima University / 広島大学
Japan (JP)
French Alternative Energies and Atomic Energy Commission (CEA)
France (FR)
How to cite
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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