REINVESTIGATION OF THE REENTRANT SPIN-GLASS PHASE OF FE26CR74 BY HIGH-RESOLUTION INELASTIC NEUTRON-SCATTERING
REINVESTIGATION OF THE REENTRANT SPIN-GLASS PHASE OF FE26CR74 BY HIGH-RESOLUTION INELASTIC NEUTRON-SCATTERING
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DOI：
10.1103/physrevb.38.2669
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发表时间：
1988-08-01
影响因子：
3.7
通讯作者：
SHAPIRO, SM
中科院分区：
文献类型：
--
作者：
LEQUIEN, S;HENNION, B;SHAPIRO, SM
高分辨率非弹性中子散射测量的样品Fe 26 Cr 74在Shapiro等人的第一个实验中使用。[B 24，6661（1981）]表明，传播的自旋波在低至13 K时明确存在。在较低温度下的测量再次受到实验限制的阻碍，这些限制不允许弹性和非弹性信号之间的明确分离。数据分析的最自然的外推支持，但不能证明，在最低温度下存在自旋波，即使使用双洛伦兹表示的谱权函数。
High-resolution inelastic neutron scattering measurements performed on the sample Fe 26 Cr 74 used in the first experiment of Shapiro et al.[Phys. Rev. B 24, 6661 (1981)] show that propagating spin waves are unambiguously present down to 13 K. Measurements at lower temperatures are again hampered by the experimental limitations, which do not allow a clear separation between elastic and inelastic signals. The most natural extrapolation of the data analysis favors, but does not prove, the existence of spin waves at the lowest temperatures, even when using the double Lorentzian representation of the spectral weight function.