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Updated: Aug 7, 2026

Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
Phase diagram of tetragonal manganites
1JRCAT-Angstrom Technology Partnership, 1-1-4 Higashi, Tsukuba, Ibaraki 305-0046, Japan.
This study maps the magnetic phase diagram of La1-xSrxMnO3, revealing transitions between ferromagnetic and antiferromagnetic states with doping and distortion. These magnetic ordering changes are linked to orbital ordering and spin-wave instabilities.
Area of Science:
- Condensed Matter Physics
- Materials Science
- Computational Materials Science
Background:
- La1-xSrxMnO3 exhibits complex magnetic phases.
- Understanding these phases is crucial for advanced electronic applications.
Purpose of the Study:
- To determine the phase diagram of La1-xSrxMnO3.
- To investigate the influence of tetragonal distortion on magnetic ordering.
- To explain the sequence of magnetic ground states.
Main Methods:
- First-principles band structure calculations.
- Analysis of orbital ordering.
- Investigation of hopping integral anisotropy.
Main Results:
- The phase diagram includes ferromagnetic (FM), A-, C-, and G-type antiferromagnetic (AF) states.
- Tetragonal distortion significantly affects magnetic ordering.
- A general sequence of magnetic ground states (FM → A-AF → C-AF → G-AF) with increasing hole doping (x) was identified.
Conclusions:
- The observed magnetic phase sequence is explained by the instability of FM states against spin-wave excitations.
- First-principles calculations provide insights into the interplay of doping, distortion, and magnetism.
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