Magnetic ordering in the T* phase La1.2Tb0.8CuO4 |
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| Authors: | A. Lappas K. Prassides A. Amato R. Feyerherm F. N. Gygax A. Schenck |
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| Affiliation: | (1) School of Chemistry and Molecular Sciences, University of Sussex, BN1 9QJ Brighton, UK;(2) Institute for Intermediate Energy Physics, Swiss Federal Institute of Technology (ETH) Zürich, CH-5232 Villigen, PSI, Switzerland |
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| Abstract: | We report a muon spin relaxation study of the magnetic properties of the La1.2Tb0.8CuO4 phase with the T* structure. Random magnetic order is revealed between 280 and 170 K by the zero field data. A spontaneous muon precession then appears below 170 K, arising from antiferromagnetic long range order of the Cu2+ spins. Evidence exists below 20 K for ordering of the Tb3+ ions. We find that the T* phase adopts the same magnetic structure as the (T/O) phase La2CuO4. |
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