Direct observation of spin configuration in an exchange coupled Fe/NiO(100) system by x-ray magnetic circular- and linear- dichroism photoemission electron microscope

作者: Kuniaki Arai , Taichi Okuda , Arata Tanaka , Keiki Fukumoto , Takahide Hasegawa

DOI: 10.1063/1.3647776

关键词:

摘要: Three dimensional spin configuration in an exchange coupled Fe/NiO(100) system is investigated using a combination of photoemission electron microscopy and magnetic linear- circular dichroism spectroscopy the soft-x-ray range. By comparing experimental image contrasts with cluster model calculation including crystal symmetry, we have successfully determined bulk antiferromagnetic NiO substrate. The easy axes outermost ferromagnetic Fe film interface corresponding to three kinds substrate been assigned. We also observe that field amplitude required for magnetization reversal depends on these initial directions. These findings are strongly related mechanism bias phenomena.

参考文章(30)
T. Muro, T. Nakamura, T. Matsushita, T. Wakita, K. Fukumoto, H. Kimura, T. Hirono, T. Kinoshita, T. Hara, K. Shirasawa, M. Takeuchi, H. Kitamura, Status of the Twin Helical Undulator Soft X‐ray Beamline at SPring‐8: Performance for Circular Dichroism Measurements SYNCHROTRON RADIATION INSTRUMENTATION: Ninth International Conference on Synchrotron Radiation Instrumentation. ,vol. 879, pp. 571- 574 ,(2007) , 10.1063/1.2436125
Dinesh Martien, Kentaro Takano, A. E. Berkowitz, David J. Smith, Increasing the exchange-bias field of Ni0.5Co0.5O films by microstructural control Applied Physics Letters. ,vol. 74, pp. 1314- 1316 ,(1999) , 10.1063/1.123535
Hendrik Ohldag, Andreas Scholl, Frithjof Nolting, Simone Anders, FU Hillebrecht, J Stöhr, None, Spin Reorientation at the Antiferromagnetic NiO(001) Surface in Response to an Adjacent Ferromagnet Physical Review Letters. ,vol. 86, pp. 2878- 2881 ,(2001) , 10.1103/PHYSREVLETT.86.2878
S. Colonna, P. Luches, S. Valeri, F. Boscherini, The Fe/NiO interface studied by polarization dependent X-ray absorption spectroscopy Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms. ,vol. 246, pp. 131- 135 ,(2006) , 10.1016/J.NIMB.2005.12.025
Elke Arenholz, Gerrit van der Laan, Frithjof Nolting, Magnetic structure near the Co∕NiO(001) interface Applied Physics Letters. ,vol. 93, pp. 162506- ,(2008) , 10.1063/1.3005643
FZ Guo, HL Sun, T Okuda, K Arai, K Kura, Y Maeda, H Miyata, T Matsushita, K Kobayashi, T Kinoshita, None, Spin reorientation at the interface of Fe/NiO(0 0 1) Journal of Electron Spectroscopy and Related Phenomena. ,vol. 156, pp. 482- 485 ,(2007) , 10.1016/J.ELSPEC.2006.12.016
Fangzhun Guo, Hailin Sun, Taichi Okuda, Keisuke Kobayashi, Toyohiko Kinoshita, Surface antiferromagnetic domain structures of NiO (0 0 1) studied using UV photoemission electron microscope Surface Science. ,vol. 601, pp. 4686- 4689 ,(2007) , 10.1016/J.SUSC.2007.05.055
S. Colonna, F. Ronci, A. Cricenti, P. Luches, S. Valeri, J. Qi, Y. Xu, J.K. Miller, N. Tolk, Ferromagnetic-Antiferromagnetic Fe/NiO(100) interface studied by non-linear Kerr effect Surface Science. ,vol. 601, pp. 4362- 4365 ,(2007) , 10.1016/J.SUSC.2007.06.011
S. Colonna, A. Cricenti, P. Luches, S. Valeri, F. Boscherini, J. Qi, Y. Xu, N. Tolk, Fe/NiO(100) and Fe/MgO(100) interfaces studied by X-ray absorption spectroscopy and non-linear Kerr effect Superlattices and Microstructures. ,vol. 46, pp. 107- 113 ,(2009) , 10.1016/J.SPMI.2009.01.013
H. Ohldag, G. van der Laan, E. Arenholz, Correlation between Crystallographic and Magnetic Domains at Co/NiO(001) Interfaces Physical Review B. ,vol. 79, pp. 052403- ,(2009) , 10.1103/PHYSREVB.79.052403