@inproceedings{33862, keywords = {Perovskite, manganese compounds, lanthanum compounds, Epitaxial growth, Ferromagnetic materials, Magnetization, Heterojunctions, Magnetic field effects, X ray diffraction analysis, Magnetic hysteresis, Magnetic field measurement, Spin valves}, author = {M.C Robson and S.B Ogale and R Godfrey and T Venkatesan and M Johnson and Ramamoorthy Ramesh}, editor = {Pearton S.J and Shul R.J and Wolfgang E and Ren F and Tenconi S}, title = {Fabrication of La0.7Sr0.3MnO3/La0.5Sr0.5CoO3/ La0.7Sr0.3MnO3 heterostructures for spin valve applications}, abstract = {

Epitaxial growth of oxide heterostructures, which may be utilized in spin valve applications, has been demonstrated. The heterostructures consist of two ferromagnetic layers separated by a non-magnetic metallic interlayer. The ferromagnetic material used is the manganese perovskite oxide, La0.7Sr0.3MnO3, while the metallic oxide interlayer is La0.5Sr0.5CoO3. X-ray diffraction spectra demonstrate the high structural quality of the heterostructures. The magnetization of the heterostructure as a function of magnetic field measured at room temperature yields a double hysteresis loop that is characteristic of this type of spin valve structure. The behavior of this double hysteresis loop is also examined as a function of the metallic interlayer thickness.

}, year = {1997}, journal = {Materials Research Society Symposium - Proceedings}, volume = {494}, pages = {243-248}, publisher = {MRS, Warrendale, PA, United States}, issn = {02729172}, note = {

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}, language = {eng}, }