Anomalous temperature-dependent exchange bias in Fe films deposited on Si substrates with the native oxide layer

Journal of Applied Physics

Volumn 103, Issue 9, 2008, Pages

  Wang, Wenhong ^a   Takano, Fumiyoshi ^a   Takenaka, Masato ^a   Akinaga, Hiro ^a   Ofuchi, Hironori ^b  

^a NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY AIST   (Japan)

^b JAPAN SYNCHROTRON RADIATION RESEARCH INSTITUTE   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

COERCIVE FORCE; FERROMAGNETIC MATERIALS; IRON; OXIDATION; SILICON; THERMAL EFFECTS;

EXCHANGE BIAS; OXIDE LAYERS; OXIDIZE LAYERS;

METALLIC FILMS;

EID: 43949129793     PISSN: 00218979     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.2917087     Document Type: Article

References (16)

1. W. H. Meiklejohn and C. P. Bean, Phys. Rev. 0031-899X 10.1103/PhysRev.102.1413 102, 1413 (1956).
2. J. Nogús and I. K. Schuller, J. Magn. Magn. Mater. 0304-8853 10.1016/S0304-8853(98)00266-2 192, 203 (1999).
3. A. E. Berkowitz and K. Takano, J. Magn. Magn. Mater. 0304-8853 10.1016/S0304-8853(99)00453-9 200, 552 (1999).
4. J. Nogús, D. Lederman, T. Moran, and I. K. Schuller, Phys. Rev. Lett. 0031-9007 10.1103/PhysRevLett.76.4624 76, 4624 (1996).
5. M. Kiwi, J. Mejia-Lopez, R. D. Portugal, and R. Ramirez, Solid State Commun. 0038-1098 10.1016/S0038-1098(00)00333-1 116, 315 (2000).
6. H. Ohldag, H. T. Shi, E. Arenholz, J. Stöhr, and D. Lederman, Phys. Rev. Lett. 0031-9007 10.1103/PhysRevLett.96.027203 96, 027203 (2006).
7. H. Ouyang, K. -W. Lin, C. -C. Liu, S. -C. Lo, Y. -M. Tzeng, Z. Y. Guo, and J. van Lierop, Phys. Rev. Lett. 0031-9007 10.1103/PhysRevLett.98.097204 98, 097204 (2007).
8. R. H. Kodama, A. E. Berkowitz, E. J. McNiff, and S. Foner, Phys. Rev. Lett. 0031-9007 10.1103/PhysRevLett.77.394 77, 394 (1996).
9. B. Martínez, X. Obradors, L. Balcells, A. Rouanet, and C. Monty, Phys. Rev. Lett. 0031-9007 10.1103/PhysRevLett.80.181 80, 181 (1998).
10. W. H. Wang, F. Takano, H. Ofuchi, and H. Akinaga, Phys. Status Solidi C 4, 4352 (2007).
11. L. Del Bianco, D. Fiorani, A. M. Testa, D. Fiorani, L. Savini, and S. Signoretti, Phys. Rev. B 0163-1829 10.1103/PhysRevB.66.174418 66, 174418 (2002).
12. C. Antoniak, J. Lindner, and M. Farle, Europhys. Lett. 0295-5075 10.1209/epl/i2004-10485-9 70, 250 (2005).
13. Considering that our experiment was carried out at room temperature and by using the argon with low partial pressure in the vacuum, the formation of Fe oxides is probably either Fe3 O4 or γ- Fe2 O3. It is also certainly possible that the two species are present. A detailed microstructural, electronic, and compositional analyses around the interface are needed, and are now in progress.
14. H. Wang, T. Zhu, K. Zhao, W. N. Wang, C. S. Wang, Y. J. Wang, and W. S. Zhan, Phys. Rev. B 0163-1829 10.1103/PhysRevB.70.092409 70, 092409 (2004).
15. C. Martínez-Boubeta, K. Simeonidis, M. Angelakeris, N. Pazos-Ṕrez, M. Giersig, A. Delimitis, L. Nalbandian, V. Alexandrakis, and D. Niarchos, Phys. Rev. B 0163-1829 10.1103/PhysRevB.74.054430 74, 054430 (2006).
16. M. Ali, P. Adie, C. H. Marrows, D. Greig, B. J. Hickey, and R. L. Stamps, Nat. Mater. 1476-1122 10.1038/nmat1809 6, 70 (2007).