Normandie Univ, UNIROUEN, INSA Rouen, CNRS, GPM, 76800, Rouen, France.
Unité Mixte de Physique, CNRS, Thales, Univ. Paris-Sud, Université Paris-Saclay, 91767, Palaiseau, France.
Adv Mater. 2017 Mar;29(9). doi: 10.1002/adma.201602327. Epub 2016 Dec 30.
The magnetic-field-dependent spin ordering of strained BiFeO films is determined using nuclear resonant scattering and Raman spectroscopy. The critical field required to destroy the cycloidal modulation of the Fe spins is found to be significantly lower than in the bulk, with appealing implications for field-controlled spintronic and magnonic devices.
利用核共振散射和拉曼光谱研究了应变 BiFeO 薄膜的磁场依赖自旋有序。发现破坏 Fe 自旋的旋卷调制所需的临界磁场明显低于体相，这对场控自旋电子学和磁子学器件具有吸引力。
