Phonons in UCoGa5

Phonons in UCoGa5
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UCoGa5 中的声子

DOI:
10.1016/j.physb.2006.01.543
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发表时间:
2006
期刊:
影响因子:
--
通讯作者:
G. Lander
G. Lander
中科院分区:
--
文献类型:
--
作者:
N. Metoki;K. Kaneko;S. Raymond;J. Sanchez;P. Piekarz;K. Parlinski;A. Oleś;S. Ikeda;T. Matsuda;Y. Haga;Y. Ōnuki;G. Lander

文献摘要

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我们研究了重费米子超导体PuCoGa 5的同构化合物UCoGa 5中的声子。我们的中子非弹性散射实验揭示了非常清晰的纵向和横向声学声子和低能量光学声子沿着高对称方向。在室温下测得的声子频率与假设库仑排斥U= 0的从头计算结果吻合得很好。
We have studied phonons in UCoGa 5, an isostructural compound of the heavy fermion superconductor PuCoGa 5. Our neutron inelastic scattering experiment revealed very clear longitudinal and transverse acoustic phonons and low energy optical phonons along the high symmetry directions. The phonon frequencies measured at room temperature are in good agreement with ab initio calculation assuming a Coulomb repulsion U= 0.