التفاصيل البيبلوغرافية
| العنوان: |
Magnetic phase transitions in Ta/CoFeB/MgO multilayers |
| المؤلفون: |
Barsukov, I., Fu, Yu, Safranski, C., Chen, Y. -J., Youngblood, B., Gonçalves, A. M., Spasova, M., Farle, M., Katine, J. A., Kuo, C. C., Krivorotov, I. N. |
| المصدر: |
Appl. Phys. Lett. 106, 192407 (2015) |
| سنة النشر: |
2015 |
| المجموعة: |
Condensed Matter |
| مصطلحات موضوعية: |
Condensed Matter - Materials Science, Condensed Matter - Mesoscale and Nanoscale Physics |
| الوصف: |
We study thin films and magnetic tunnel junction nanopillars based on Ta/Co$_{20}$Fe$_{60}$B$_{20}$/MgO multilayers by electrical transport and magnetometry measurements. These measurements suggest that an ultrathin magnetic oxide layer forms at the Co$_{20}$Fe$_{60}$B$_{20}$/MgO interface. At approximately 160 K, the oxide undergoes a phase transition from an insulating antiferromagnet at low temperatures to a conductive weak ferromagnet at high temperatures. This interfacial magnetic oxide is expected to have significant impact on the magnetic properties of CoFeB-based multilayers used in spin torque memories. |
| نوع الوثيقة: |
Working Paper |
| DOI: |
10.1063/1.4921306 |
| URL الوصول: |
http://arxiv.org/abs/1504.06716 |
| رقم الانضمام: |
edsarx.1504.06716 |
| قاعدة البيانات: |
arXiv |