Destruction of spin cycloid in (111)c-oriented BiFeO3 thin films by epitaxial constraint : enhanced polarization and release of latent magnetization
In BiFeO3 films, it has been found that epitaxial constraint results in the destruction of a space...
محفوظ في:
المؤلفون الرئيسيون: | , , , , , , , , |
---|---|
مؤلفون آخرون: | |
التنسيق: | مقال |
اللغة: | English |
منشور في: |
2011
|
الموضوعات: | |
الوصول للمادة أونلاين: | https://hdl.handle.net/10356/91324 http://hdl.handle.net/10220/6907 |
الوسوم: |
إضافة وسم
لا توجد وسوم, كن أول من يضع وسما على هذه التسجيلة!
|
المؤسسة: | Nanyang Technological University |
اللغة: | English |
الملخص: | In BiFeO3 films, it has been found that epitaxial constraint results in the destruction of a space
modulated spin structure. For (111)c films, relative to corresponding bulk crystals, it is shown (i)
that the induced magnetization is enhanced at low applied fields; (ii) that the polarization is
dramatically enhanced; whereas, (iii) the lattice structure for s111dc films and crystals is nearly
identical. Our results evidence that eptiaxial constraint induces a transition between cycloidal and
homogeneous antiferromagnetic spin states, releasing a latent antiferromagnetic component locked
within the cycloid. |
---|