| Autor: |
Marty, Karol, Bordet, Pierre, Simonet, Virginie, Loire, Mickael, Ballou, Rafik, Darie, Céline, Kljun, Jakob, Bonville, Pierre, Isnard, Olivier, Lejay, Pascal, Zawilski, Bartosz, Simon, Charles |
| Rok vydání: |
2009 |
| Předmět: |
|
| Zdroj: |
Physical Review B 81, 5 (2010) 054416 |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevB.81.054416 |
| Popis: |
The Fe-based langasites are the first reported compounds presenting a magnetic ordering in this rich family, besides being well known for piezo-electric properties and optical activity. The structural, magnetic and dielectric properties of the Fe langasite compounds, with various substitution of non-magnetic cations, have been studied with x-ray and neutron diffraction, magnetostatic measurements, M\"ossbauer spectroscopy, and dielectric measurements. The title compounds (trigonal, space group P321) display a helical magnetic order with signatures of frustration below TN ~24- 35 K where an anomaly of the dielectric permittivity is observed. The influence of the cationic substitutions and the nature of the magnetoelectric coupling is hereafter addressed. |
| Databáze: |
arXiv |
| Externí odkaz: |
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