Journal article
X-ray-scattering study of copper magnetism in nonsuperconducting PrBa2Cu3O6.92
X-ray magnetic scattering from ordered Cu spins has been observed in a high-T-c compound. The measurements were made on the anomalous cuprate PrBa2Cu3O6.92 with x-ray photon energies tuned in the vicinity of the Cu K edge. The high wave-vector resolution enabled us to observe an incommensurate double-Q Cu spin structure below T-Pr = 19 K that forms as a result of coupling between the magnetically ordered Cu and Pr sublattices.
Above T-Pr, the Cu ordering is commensurate, ruling out static spin-charge stripe order as an explanation for the absence of superconductivity in this material.
Language: | English |
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Year: | 2000 |
Pages: | 1251-1255 |
ISSN: | 10953795 , 1550235x and 01631829 |
Types: | Journal article |
DOI: | 10.1103/PhysRevB.61.1251 |