التفاصيل البيبلوغرافية
| العنوان: |
Domain wall diode based on functionally graded Dzyaloshinskii-Moriya interaction |
| المؤلفون: |
Yershov, Kostiantyn V., Kravchuk, Volodymyr P., Sheka, Denis D., Brink, Jeroen van den, Saxena, Avadh |
| سنة النشر: |
2020 |
| المجموعة: |
Condensed Matter |
| مصطلحات موضوعية: |
Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Mesoscale and Nanoscale Physics |
| الوصف: |
We present a general approach for studying the dynamics of domain walls in biaxial ferromagnetic stripes with functionally graded Dzyaloshinskii-Moriya interaction (DMI). By engineering the spatial profile of the DMI parameter we propose the concept of a diode, which implements filtering of domain walls of certain topological charge and helicity. We base our study on phenomenological Landau-Lifshitz-Gilbert equations with additional Zhang-Li spin-transfer terms using a collective variable approach. In the effective equations of motion the gradients of DMI play the role of a driving force which competes with current driving. All analytical predictions are confirmed by numerical simulations. |
| نوع الوثيقة: |
Working Paper |
| DOI: |
10.1063/5.0010107 |
| URL الوصول: |
http://arxiv.org/abs/2004.02175 |
| رقم الانضمام: |
edsarx.2004.02175 |
| قاعدة البيانات: |
arXiv |