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New type of magnetic structure in the R2T2X group: Tb2Pd2In
Silvie Maskova-Cerna1, Milan Klicpera1, Pavel Svoboda1
1Department of Condensed Matter Physics, Charles University, Ke Karlovu 5, 12116 Prague 2, Czech Republic.
Researchers studied the Tb2Pd2In single crystal, revealing an antiferromagnetic order below 29.5 K. This magnetic structure, with aligned terbium moments, represents a novel type within R2T2X compounds.
Area of Science:
- Condensed Matter Physics
- Materials Science
- Magnetism
Background:
- Understanding the magnetic properties of rare-earth intermetallic compounds is crucial for developing new magnetic materials.
- The R2T2X family of compounds exhibits diverse magnetic behaviors, necessitating detailed structural analysis.
Purpose of the Study:
- To investigate the magnetic anisotropy and structure of a Tb2Pd2In single crystal.
- To determine the magnetic ordering temperature and the nature of magnetic interactions.
Main Methods:
- Bulk magnetization measurements were employed to probe magnetic properties.
- Neutron diffraction techniques were utilized to elucidate the magnetic structure.
Main Results:
- Antiferromagnetic order was confirmed below a Néel temperature of 29.5 K.
- A collinear magnetic structure with Tb magnetic moments aligned along the c-axis was determined.
- The magnetic structure is characterized by a propagation vector (1/4, 1/4, 1/2) and exhibits complex coupling between Tb neighbors.
Conclusions:
- The study identified a new type of collinear magnetic structure with long-wavelength periodicity in Tb2Pd2In.
- This finding contributes to the understanding of magnetism in R2T2X compounds.
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