2D and 3D magnetic behavior of Er in ErBa2Cu3O7

J. W. Lynn, T. W. Clinton, W. H. Li, R. W. Erwin, J. Z. Liu, K. Vandervoort, R. N. Shelton

研究成果: 雜誌貢獻期刊論文同行評審

64 引文 斯高帕斯(Scopus)

摘要

Neutron scattering has been used to study the magnetic order of the Er ions in superconducting ErBa2Cu3O7. Above the 3D Néel temperature (TN=0.618 K) a rod of scattering characteristic of 2D behavior is unambiguously observed, showing that the magnetic interactions of the rare-earth ions are highly anisotropic; below TN the order parameter follows the exact Onsager solution for a 2D Ising antiferromagnet. At low T, two separate types of simple 3D antiferromagnetic structures are found, one characterized by a wave vector of (1/2,0,0), and the other by (1/2,0,1/2).

原文???core.languages.en_GB???
頁(從 - 到)2606-2609
頁數4
期刊Physical Review Letters
63
發行號23
DOIs
出版狀態已出版 - 1989

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