Pressure dependence of magnetic ordering temperatures of rare earth - Sn3 compounds
作者:L.E. DeLong、R.P. Guertin、S. Foner
DOI:10.1016/0038-1098(79)90481-2
日期:1979.12
Sn-deficient RESn3 (RE=rareearth) compounds are found consistently to be weakly ferromagnetic. The physical properties of the RESn3 compounds exhibit analogies with the corresponding properties of dilute superconducting ( La RE)Sn3 alloys. The high pressure data for PrSn3 and CeIn3 are qualitatively consistent with a “Kondo necklace” model for magnetically ordered RE compounds with unstable 4f shells
Photoemission Study of 4<i>f</i> Electronic States in PrFe<sub>4</sub>P<sub>12</sub> and Related Pr Compounds
作者:Hiroyoshi Ishii、Kenji Obu、Motoki Shinoda、Chol Lee、Yasuhiro Takayama、Tsuneaki Miyahara、Tatsuma D. Matsuda、Hitoshi Sugawara、Hideyuki Sato
DOI:10.1143/jpsj.71.156
日期:2002.1
We have measured the Pr 4d-4f high-resolution resonant photoemission arid the Pr 3d core-level photoemission spectra of PrFe4P12 and related compounds PrSn3, PrAl2 and Pr metal. The Pr 4f and Pr 3d spectra of PrFe4P12 show the spectral features corresponding to a strongly hybridized system in Pr compounds. However, the H-3(4), state located just below the Fermi energy is observed as a shoulder instead of the prominent peak expected for the strongly hybridized or high-Kondo temperature systems, From the analysis of the Pr 3d core-level spectrum, we inter that the absence of the peak structure near the Fermi energy reflects the weak hybridization strength between the Pr 4f and the valence band states at the Fermi energy.
A neutron scattering study of the magnetic properties of PrSn3