Observations of CEF-split intermultiplet transitions in optically opaque EuBa{sub 2}Cu{sub 3}O{sub 7} using inelastic neutron scattering
Conference
·
OSTI ID:10118361
- Argonne National Lab., IL (United States)
- Atominstitut der Oesterriechischen Universitaeten, Vienna (Austria)
- St. Petersburg Nuclear Physics Institute (Russian Federation)
Inelastic neutron scattering (INS) results on the intermultiplet transitions J=0 {yields} 1 and J=l {yields} 2 in optically opaque EuBa{sub 2}Cu{sub 3}O{sub 7} are reported. Whereas these multiplets are split by the crystalline electric field (CEF), their low J values are influenced to first order only by the 2 second-order (J=l) and additional fourth-order (J=2) CEF parameters. B{sub 0}{sup 2}, B{sub 2}{sup 2} and the spin-orbit coupling parameter were obtained by fitting the splitting of the J=1 multiplet and the energy separation between the J=0 and 1 multiplets. The J=0 to 1 splitting observed here is smaller than previously seen by optical spectroscopic studies on a variety of transparent, ionic compounds, necessitating fitting of the free-ion parameter. Additional spectroscopic information on the J=2 multiplet indicates that additional fitting of free ion parameters must be included to adequately model the observed low energy separation between the two lowest J-multiplets. Preliminary calculation on the Q-dependence of the CEF split J=0 to 1 transitions and the comparison with observations are presented.
- Research Organization:
- Argonne National Lab., IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 10118361
- Report Number(s):
- ANL/CHM/CP--85153; CONF-941144--70; ON: DE95007135
- Country of Publication:
- United States
- Language:
- English
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· Physical Review, B: Condensed Matter
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OSTI ID:496736
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OSTI ID:47950
Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201
665100
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARIUM OXIDES
CHEMICAL AND PHYSICOCHEMICAL PROPERTIES
COPPER OXIDES
ELECTRONIC STRUCTURE
EUROPIUM OXIDES
INELASTIC SCATTERING
NEUTRON SPECTROSCOPY
NUCLEAR TECHNIQUES IN CONDENSED MATTER PHYSICS
RADIATION SCATTERING ANALYSIS
400201
665100
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARIUM OXIDES
CHEMICAL AND PHYSICOCHEMICAL PROPERTIES
COPPER OXIDES
ELECTRONIC STRUCTURE
EUROPIUM OXIDES
INELASTIC SCATTERING
NEUTRON SPECTROSCOPY
NUCLEAR TECHNIQUES IN CONDENSED MATTER PHYSICS
RADIATION SCATTERING ANALYSIS