Identification ofμ
+-sites in the 1-2-3 compoundin the 1-2-3 compound |
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Authors: | M Weber P Birrer F N Gygax B Hitti E Lippelt H Maletta A Schenck |
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Institution: | 1. Institut für Mittelenergiephysik der ETH Zürich, CH-5232, Villigen PS1, Switzerland 2. Institut für Festk?rperforschung, Forschungszentrum Jülich, D-5170, Jülich, Germany
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Abstract: | Possibleμ
+ sites have been identified by a comparison of measured spontaneous internal fields in YBa2Cu3O6+δ and REBa2Cu3O7−δ and of measured second moments and width of transverse field powder spectra with the corresponding calculated quantities.
In the YBa2Cu3O7 system only one possibleμ
+ site emerges at a distance of ∼1.05 A from a chain oxygen O(4) at the position (0.15(1), 0.44(1), 0.071(1)). In the system
YBa2Cu3O6 the only possibleμ
+ sites are near to an oxygen O(1) with z/c=0.133 and the same distance as above. The analysis leads also to improved valuesμ
Ho = 2.2(1)μ
B andμ
Cu = 0.67(4)μ
B and to a determination of the latters direction:μ
Cu ‖〈110〉. |
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Keywords: | |
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