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2004 | 105 | 6 | 659-665
Article title

Growth and Investigation of Oxide Heterostructures Based on Half-Metallic Fe3O4

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Languages of publication
EN
Abstracts
EN
We report thin films of ferromagnetic Fe_3O_4 (magnetite) grown by a reactive magnetron sputtering at T=300÷450°C on lattice-matched MgO, and bilayer structures composed of Fe_3O_4 and underlying epitaxial films of highly conductive electron-doped In_2O_3〈Sn〉, LaNiO_3, and antiferromagnetic CoO. The prepared Fe3O4/MgO films and the bilayer structures demonstrated clearly defined resistance anomaly at Verwey transition point (T_V≈100-120 K). Formation of high resistance interlayer was indicated between the adjacent conducting Fe3O4 and LaNiO3 layers. However, relatively low interface resistivity of about 0.1 Ω cm^2 (at T=300 K) was estimated for the patterned Fe3O4/In2O3〈Sn〉 bilayer structures. Vertical electrical transport measurements revealed strong nonlinearity in the I-U dependences of the Fe3O4/In2O3 〈Sn〉 interface at T
Keywords
EN
Year
Volume
105
Issue
6
Pages
659-665
Physical description
Dates
published
2004-06
received
2004-05-28
References
  • 1. W.E. Pickett, J.S. Moodera, Physics Today 54, 39 (2001)
  • 2. B. Vengalis, V. Lisauskas, A. Lisauskas, K. Šliužienė, E. Kuprusevičius, V. Jasutis, Lithuanian J. Phys. 42, 327 (2002)
  • 3. S. Soeya, J. Hayakawa, H. Takahashi, K. Ito, C. Yamamoto, A. Kida, H. Asano, M. Matsui, Appl. Phys Lett. 80, 823 (2002)
  • 4. S.B. Ogale, K. Ghosh, R.P. Sharma, R.L. Greene, R. Remesh, T. Venkatesen, Phys. Rev. B 57, 7823 (1998)
  • 5. X.W. Li, A. Gupta, Gang Xiao, G.Q. Gong, J. Appl. Phys. 83, 7049 (1998)
  • 6. J.R. Sun, C.M. Xiong, T.Y. Zhao, S.Y. Zhang, Y.F. Chen, B.G. Shen, Appl. Phys. Lett. 84, 1528 (2004)
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv105n616kz
Identifiers
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