Polarized Neutron Experiments on REBa 2 Cu 3 O 7—δ  with Polarization and Time of Flight Energy Analysis | Zendy

Schärpf O. | Zendy; Chattopadhyay T. | Zendy; Weber H. W. | Zendy; Hyun O. B. | Zendy; Finnemore D. K. | Zendy

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Polarized Neutron Experiments on REBa 2 Cu 3 O 7—δ with Polarization and Time of Flight Energy Analysis

Author(s) -

Schärpf O.,

Chattopadhyay T.,

Weber H. W.,

Hyun O. B.,

Finnemore D. K.

Publication year - 1993

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2221750115

Subject(s) - valence (chemistry) , scattering , polarization (electrochemistry) , ion , neutron scattering , materials science , neutron , atomic physics , analytical chemistry (journal) , nuclear physics , physics , chemistry , optics , quantum mechanics , chromatography

Experimental data on HoBa 2 Cu 3 O 7—δ (with δ = 0 and 1), obtained with a diffuse neutron scattering instrument and employing full polarization analysis, are used to evaluate the magnetic scattering cross sections. The validity of the evaluation is confirmed by a comparison with calculations based on published crystal field parameters for this compound. Similar experiments on Tm‐ and Yb‐substituted materials and the corresponding evaluations show, that both ions are in a 3 + state (Tm 3+ , Yb 3+ ) at low temperature, whereas a change of valence occurs somewhere below 300 K.

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