Magnetic structure modified by the quadrupolar interaction in DyB2C2

✍ Scribed by H Yamauchi; H Onodera; M Ohashi; K Ohoyama; T Onimaru; M Kosaka; Y Yamaguchi

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 118 KB
• Volume: 60
• Category: Article
• ISSN: 0022-3697
• DOI: 10.1016/s0022-3697(99)00088-8

✦ Synopsis

Neutron powder diffraction experiments were performed on the tetragonal DyB 2 C 2 compound in order to determine its magnetic structure. DyB 2 C 2 undergoes two phase transitions: one is a quadrupolar ordering at T Q 24.7 K, and the other a magnetic ordering at T C 15.3 K. The magnetic structure below T C is complicated, which is essentially an antiferromagnetic one with small ferromagnetic components. This complicated magnetic structure is due to the coexistence and competition of antiferromagnetic and antiferroquadrupolar interactions.