论文标题

无序铁磁合金NI-V中的磁相关性显示出较小的角度中子散射

Magnetic correlations in the disordered ferromagnetic alloy Ni-V revealed with small angle neutron scattering

论文作者

Schroeder, A., Bhattarai, S., Gebretsadik, A., Adawi, H., Lussier, J. -G., Krycka, K. L.

论文摘要

我们介绍在polycrystalline ni $ _ {1-x} $ v $ _x $样品上收集的小角度中子散射(SANS)数据,带有$ x \ geq0.10 $,带有确认的随机原子分布。我们旨在确定临界温度低的铁磁样品中磁相关的相关长度尺度$ t_c $,显示磁化强度和$μ$ SR数据的磁性不均匀性迹象。 SANS研究揭示了这种随机无序的铁磁合金中长距离顺序和短距离磁相关的签名。我们显示了极化分析在识别主要的核散射中主要磁性贡献方面的优势。

We present small angle neutron scattering (SANS) data collected on polycrystalline Ni$_{1-x}$V$_x$ samples with $x\geq0.10$ with confirmed random atomic distribution. We aim to determine the relevant length scales of magnetic correlations in ferromagnetic samples with low critical temperatures $T_c$ that show signs of magnetic inhomogeneities in magnetization and $μ$SR data. The SANS study reveals signatures of long-range order and coexistence of short-range magnetic correlations in this randomly disordered ferromagnetic alloy. We show the advantages of a polarization analysis in identifying the main magnetic contributions from the dominating nuclear scattering.

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