MAGNETIC EXCITATIONS IN SINGLE-CRYSTAL PRNI5

被引：31

作者：

AMATO, A

BUHRER, W

GRAYEVSKY, A

GYGAX, FN

FURRER, A

KAPLAN, N

SCHENCK, A

机构：

[1] HEBREW UNIV JERUSALEM,RACAH INST PHYS,IL-91904 JERUSALEM,ISRAEL

[2] ETH ZURICH,NEUTRONENSTREUUNG LAB,CH-5232 VILLIGEN,SWITZERLAND

来源：

SOLID STATE COMMUNICATIONS | 1992年 / 82卷 / 10期

关键词：

D O I：

10.1016/0038-1098(92)90161-2

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Inelastic neutron scattering has been employed to determine the crystal-field and exchange interaction in PrNi5. The observed energy spectra exhibit a sufficient number of well resolved crystal-field transitions, so that we have been able to unambiguously determine the four crystal-field parameters required for hexagonal symmetry. From the dispersion behavior of the lowest lying ground-state transition we determined both the nearest- and next-nearest neighbor exchange parameters to be ferromagnetic. The results allow to calculate the anisotropic exchange enhanced static susceptibility which agrees closely with corresponding experimental data. These observations are at variance with recent mu-SR-results which suggest that around the muon probe a large part of the susceptibility is associated with the Ni-ions.

引用

页码：767 / 771

页数：5

共 13 条

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