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Sample antiferromagnetic lattice

The compound Mn2As is similar to Mn2Sb except that the smaller lattice parameter stabilizes only the antiferromagnetic stale. Yuzuri and Yamada (711) have examined the system Mn As, 1 < x < 2.5, and found that a sample of Mn2.3As has the Cu2Sb structure with Tn = 573°K. [Pg.295]

One example of a reflectivity measurement is shown in Fig. 26. The sample is CdCraSe4 and the reflection spectra exhibit the typical reststrahlen bands caused by the lattice vibrations. Another example (Fig. 27) is a transmission measurement of an absorption line due to antiferromagnetic resonance. This also shows how, with spectroscopy in the extreme far-infrared, the signal-to-noise ratio is rather... [Pg.121]


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