Fe+ İyonu Aşılanmış TiO2 Tek Kristallerin Manyetik Özelliklerinin İncelenmesi

Bu çalışmada, oda sıcaklığında demir (Fe+) iyonları ile aşılanmış (100) ve (001) kristal yönelimine sahip tek kristalve polikristal TiO2 alttaşların manyetik özellikleri sunulmaktadır. İyon aşılama sonrasında ısıl işleme tabi tutulan vetutulmayan örneklerin mıknatıslanma, g- faktörü ve kristal manyetik anizotropileri Elektron Manyetik Rezonans(EMR) ve Titreşimli Örnek Manyetometre (VSM) teknikleri kullanılarak incelenmiştir. Deneysel veriler teorik birmodele dayandırılarak özel bir bilgisayar programı ile fit edilmiştir. Elde edilen sonuçlar, aşılanmış örneklerinferromanyetik bir davranış sergilediklerini ve manyetik özelliklerinin örneğin kristal yönelimine oldukça bağlıolduğunu göstermiştir.

Investigation of Magnetic Properties of Fe+ Implanted TiO2 Single Crystals

In this study, magnetic properties of single crystal and polycrystalline TiO2 substrates with crystal orientation (100) and (001) implanted with iron (Fe+ ) ions at room temperature are presented. After implantation magnetization, gfactor and crystal magnetic anisotropy of the annealed and non-annealed samples were investigated by Electron Magnetic Resonance (EMR) and Vibrating Sample Magnetometer (VSM) techniques. Experimental data were fit with a special computer program based on the theoretical model. The results obtained show that the implanted samples exhibit a ferromagnetic behavior and their magnetic properties are highly dependent on the crystal orientation of the sample.

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