Resonant Inelastic X-Ray Scattering in Nd{sub 2} CuO{sub 4}

Journal Article · Mon Jun 01 00:00:00 EDT 1998 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.80.4967· OSTI ID:664914

Hill, J P ^[1]; Kao, C; Caliebe, W A ^[2]; Matsubara, M; Kotani, A ^[3]; Peng, J L; Greene, R L ^[4]

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1. Department of Physics, Brookhaven National Laboratory, Upton, New York 11973 (United States)
2. National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York 11973 (United States)
3. Institute for Solid State Physics, University of Tokyo, Roppongi, Minato-ku, Tokyo 106 (Japan)
4. Center for Superconductivity Research, Department of Physics and Astronomy, University of Maryland, College Park, Maryland 20742 (United States)

We report inelastic x-ray scattering studies of charge excitations in insulating Nd{sub 2}CuO {sub 4} as a function of incident photon energy. An excitation of {approximately}6 eV is observed when the incident photon energy is tuned through the Cu K edge. This is interpreted as resonantly enhanced inelastic x-ray scattering. Numerical calculations identify the 6 eV feature as a charge-transfer excitation to the antibonding state and suggest that nonlocal effects play a role in determining the shape of the resonance. {copyright} {ital 1998} {ital The American Physical Society}

• Research Organization: Brookhaven National Laboratory
• DOE Contract Number: AC02-98CH10886
• OSTI ID: 664914
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 22 Vol. 80; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
CHARGE EXCHANGE
COPPER OXIDES
HARD X RADIATION
HIGH-TC SUPERCONDUCTORS
INELASTIC SCATTERING
NEODYMIUM OXIDES
RESONANCE SCATTERING