Journal or Book Title
Physical Review Letters
Based on experimental observations of modulated magnetic patterns in a Co0.5Ni0.205Ga0.295 alloy, we propose a model to describe a (purely) magnetic tweed and a magnetoelastic tweed. The former arises above the Curie (or Néel) temperature due to magnetic disorder. The latter results from compositional fluctuations coupling to strain and then to magnetism through the magnetoelastic interaction above the structural transition temperature. We discuss the origin of purely magnetic and magnetoelastic precursor modulations and their experimental thermodynamic signatures.
American Physical Society
Saxena, A.; Castán, T.; Planes, A.; Porta, M.; Kishi, Y.; Lograsso, Thomas A.; Viehland, D.; Wuttig, M.; and De Graef, M., "Origin of Magnetic and Magnetoelastic Tweedlike Precursor Modulations in Ferroic Materials" (2004). Ames Laboratory Publications. 23.