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Updated: May 30, 2026
08:55
Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
Ferromagnetism and structural transformations caused by Cr intercalation into TiTe(2).
N V Baranov1, V G Pleshchev, N V Selezneva
1Institute of Metal Physics, Russian Academy of Science, 620041 Ekaterinburg, Russia. Institute of Physics and Applied Mathematics, Ural State University, 620083 Ekaterinburg, Russia.
Summary
Intercalating chromium (Cr) into TiTe2 alters its crystal structure and magnetic properties. Increasing Cr content transforms the material from metallic to insulating and induces ferromagnetic ordering.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Solid State Chemistry
Background:
- Intercalated transition metal dichalcogenides (TMDs) exhibit diverse electronic and magnetic properties.
- Chromium (Cr) intercalation in TiTe2 offers a route to tune these properties.
Purpose of the Study:
- Investigate the structural, electrical, and magnetic properties of Cr(x)TiTe2.
- Understand the influence of Cr concentration on phase transitions.
Main Methods:
- Polycrystalline sample synthesis.
- X-ray diffraction (XRD) for crystal structure analysis.
- Electrical resistivity measurements.
- Magnetic property measurements.
Main Results:
- Hexagonal to monoclinic crystal structure transformation observed with increasing Cr content (x≥0.5) due to Cr ion ordering.
- Resistivity changes from metallic (x=0) to insulator-like (x>0.33).
- Ferromagnetic ordering of Cr magnetic moments emerges at x≥0.5.
Conclusions:
- Cr intercalation significantly modifies the electronic and magnetic behavior of TiTe2.
- A phase transition around 230 K in Cr(0.25)TiTe2 involves both Cr ion ordering and potential charge density wave instability within Te-Ti-Te layers.
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