Anomalous magnetic susceptibility of Y2Fe3Si5

✍ Scribed by H.D. Yang; H.L. Tsay

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 149 KB
• Volume: 186-188
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/0921-4526(93)90779-6

✦ Synopsis

Results of temperature and field dependence of the magnetic susceptibility for Y2Fe3Si5 are reported. A maximum in magnetic susceptibility of Y2Fe3Si 5 is observed at Tma ~ ~ll0K. Tin, ~ decreases with increasing magnetic field and disappears at fields above 2000 Oe. In addition, this anomaly is also suppressed by substituting a small amount of Sc for Y. It is found that these anomalous magnetic properties are strongly correlated with the dramatic pressure effect on T~ of Y2Fe3Si 5. Several possible mechanisms such as the structural phase transition, a few ppm of iron impurity effect, Fermi surface topology, spin density wave formation and spin-glass state are considered and discussed to be responsible for these unusual phenomena.