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Updated: Mar 31, 2026
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Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
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Griffiths phase behaviour in a frustrated antiferromagnetic intermetallic compound.
Krishanu Ghosh1, Chandan Mazumdar2, R Ranganathan2
1Department of Physics, The University of Burdwan, Golapbag, Bardhaman - 713104, West Bengal, India.
Scientific Reports
|October 31, 2015
Summary
This study reports the rare co-occurrence of a Griffiths phase and frustrated antiferromagnetism in GdFe0.17Sn2. Researchers found differences in the Griffiths phase region between zero field and field cooled measurements.
Area of Science:
- Condensed Matter Physics
- Materials Science
- Magnetism
Background:
- Non-stoichiometric intermetallic compounds can exhibit complex magnetic phenomena.
- Geometric frustration and Griffiths phases are intriguing concepts in magnetism.
Purpose of the Study:
- To investigate the coexistence of a Griffiths phase and geometrically frustrated antiferromagnetism in GdFe0.17Sn2.
- To characterize the magnetic properties and structural features of this rare compound.
Main Methods:
- X-ray diffraction for structural analysis.
- Magnetization measurements to determine magnetic ordering temperatures.
- Heat capacity measurements to identify phase transitions.
- Magnetocaloric effect (MCE) measurements.
Main Results:
- GdFe0.17Sn2 crystallizes in the Cmcm space group with significant structural anisotropy.
- The compound exhibits a frustration parameter (f) of 3.6, with a Néel temperature (TN) of 16.5 K and a Griffiths temperature (TG) of 32 K.
- The Griffiths temperature was confirmed through both heat capacity and MCE measurements.
- A notable difference in the Griffiths phase region was observed between zero field and field-cooled measurements.
Conclusions:
- The rare coexistence of a Griffiths phase and frustrated antiferromagnetism is confirmed in GdFe0.17Sn2.
- The structural characteristics, including high anisotropy and unique Wyckoff positions, contribute to the observed magnetic behavior.
- The study highlights the importance of distinguishing between field-cooled and zero-field-cooled measurements when analyzing Griffiths phases.
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