The magnetic behavior of La1-xTbxMn2Si2 (0 <= x <= 0.3) in weak magnetic fields
SOLID STATE COMMUNICATIONS, vol.130, no.7, pp.455-458, 2004 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 130 Issue: 7
- Publication Date: 2004
- Doi Number: 10.1016/j.ssc.2004.02.050
- Journal Name: SOLID STATE COMMUNICATIONS
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.455-458
- Keywords: rare-earth compounds, transition metal compounds, magnetically ordered materials, magnetic phase transitions, layered magnetic structures, PHASE-TRANSITIONS, NEUTRON-DIFFRACTION, TBMN2SI2, HO
- Ankara University Affiliated: No
Abstract
The structure and magnetic properties of La1-xTbxMn2Si2 (0 less than or equal to x less than or equal to 0.3) were studied by X-ray powder diffraction and DC magmetization measurements. All the compounds crystallize in ThCr2Si2-type structure. Substitution of Tb for La led to a linear decrease in the lattice constants and the unit-cell volume. A ferromag,netic phase for x less than or equal to 0. 15, and an anti ferromagnetic phase for x = 0.3 have been observed at about room temperature. whereas the compounds with x = 0.2 and 0.25 exhibit a magnetic phase transition from ferromagnetism to antiferromagnetism. (C) 2004 Elsevier Ltd. All rights reserved.