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arXiv 0901.1816cond-mat.mtrl-sci
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Pb(Fe1/2Nb1/2)O3的自旋玻璃态和长程磁序

Spin-glass state and long-range magnetic order in Pb(Fe1/2Nb1/2)O3

G. -M. Rotaru, B. Roessli, A. Amato, S. N. Gvasaliya, C. Mudry, S. G. Lushnikov, T. A. Shaplygina

摘要:

我们利用$μ$ SR谱和中子散射研究了多铁性弛豫铁电体\pfn的磁基态。我们发现,一个过渡到一个部分无序的阶段发生在T=20 K以下,与长程反铁磁有序共存。无序相类似于自旋玻璃。$μ$ SR没有证明磁性离子的聚集,因此在样品中共存看起来是均匀的。

英文摘要:

We have investigated the magnetic ground-state of the multiferroic relaxor ferroelectric \pfn with $μ$SR spectroscopy and neutron scattering. We find that a transition to a partially disordered phase occurs below T=20 K that coexists with long-range antiferromagnetic ordering. The disordered phase resembles a spin-glass. No clustering of magnetic ions could be evidenced by $μ$SR so that the coexistence appears homogeneous in the sample.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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