金属间白铁矿中的准一维磁振子
Quasi-one-dimensional magnons in an intermetallic marcasite
摘要：
我们提出了非弹性中子散射测量和第一性原理计算检查金属间白铁矿CrSb 2。所观察到的自旋波色散意味着磁相互作用是强烈的一维与反铁磁链平行的结晶c轴。这种低维激发在半导体金属间体系中是出乎意料的。此外，这种材料可能进一步感兴趣的是，磁各向异性可以增强沿着特定结晶方向的热电性质。
英文摘要：
We present inelastic neutron scattering measurements and first principles calculations examining the intermetallic marcasite CrSb2. The observed spin wave dispersion implies that the magnetic interactions are strongly one-dimensional with antiferromagnetic chains parallel to the crystalline c-axis. Such low-dimensional excitations are unexpected in a semiconducting intermetallic system. Moreover this material may be further interesting in that the magnetic anisotropy may enhance thermoelectric properties along particular crystallographic directions.
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