Low temperature magnetic phase of KMnFeF6: A neutron depolarisation and diffraction study

✍ Scribed by Sk. Mohammad Yusuf; L. Madhav Rao; R. Mukhopadhyay; S. Giri; K. Ghoshray; A. Ghoshray

• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 480 KB
• Volume: 101
• Category: Article
• ISSN: 0038-1098
• DOI: 10.1016/s0038-1098(96)00518-2

✦ Synopsis

Neutron diffraction and zero-field-cooled, field-cooled neutron depolarisation measurements have been carried out for KMnFeF6 system. Our study does not indicate any feature of spin-glass like transition near 108K as reported in the literature. On the other hand, results show the presence of long range ferrimagnetic correlation in this geometrically frustrated system. The observed features of a.c. susceptibility, low-field magnetisation and neutron depolarisation measurements have been explained on the basis of thermally activated domain wall movement of ferrimagnetic arrangement of canted spins.