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arXiv 0906.3601cond-mat.str-el
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La(1.725)Sr(0.275)NiO(4)电荷带有序结构的面外相关谱的温度演化

The Temperature Evolution of the Out-of-Plane Correlation Lengths of Charge-Stripe Ordered La(1.725)Sr(0.275)NiO(4)

P. G. Freeman, N. B. Christensen, D. Prabhakaran, A. T. Boothroyd

摘要:

用中子衍射方法研究了La(1.725)Sr(0.275)NiO(4)的磁序随温度的变化。在冷却时,观察到磁性布拉格峰的宽度变宽。加宽的程度被发现是非常不同的为l =奇数整数和l =偶数整数的磁峰。我们认为,所观察到的行为是磁和电荷之间的竞争秩序的结果。

英文摘要:

The temperature dependence of the magnetic order of stripe-ordered La(1.725)Sr(0.275)NiO(4) is investigated by neutron diffraction. Upon cooling, the widths if the magnetic Bragg peaks are observed to broaden. The degree of broadening is found to be very different for l = odd-integer and l = even-integer magnetic peaks. We argue that the observed behaviour is a result of competition between magnetic and charge order.

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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