本论文采用水热法制备Fe掺TiO2稀磁半导体Ti1-xFexO2(x=0-0.04),并对其形貌、结构及磁性能进行表征.X射线衍射分析结果表明,掺杂Fe离子后产物为TiO2锐钛矿结构,其晶体晶格常数随掺人铁离子含量的增加而略有增大.透射电镜和x射线能谱测试结果表明,样品形貌规整,平均粒径约为20 nm.利用振动样品磁强计对其磁性能进行测量,结果表明样品在室温条件下存在铁磁性.
参考文献
| [1] | Wolf S A;Awschalom D D;Buhrman R A et al.Spintronics:a Spin-based Electronics Vision for the Future[J].Science,2001,294(5546):1488-1495. |
| [2] | H. Ohno .Making Nonmagnetic Semiconductors Ferromagnetic[J].Science,1998(5379):951-956. |
| [3] | Yuji Matsumoto;Makoto Murakami;Tomoji Shono et al.Room-tempersture Ferromagnetism in Transparent Transition Metal-doped TitaniumDioxide[J].Science,2001,291(5505):854-856. |
| [4] | Forro L;Chauvet O;Emin D et al.High Mobility n-type Charge Carriers in Large Single Crystals of Anatase TiO2[J].Journal of Applied Physics,1994,75(01):633-635. |
| [5] | Kim D H;Yang J S;Lee K W et al.Formation of Fe Nanoclusters in Epitaxial Ti0.96Fe0 04O2Thin Films and Their Ferromagnetism[J].Applied Physics Letters,2002,81(13):2421-2423. |
| [6] | S. A. Chambers;S. Thevuthasan;R. F. C. Farrow;R. F. Marks;J. U. Thiele;L. Folks;M. G. Samant;A. J. Kellock;N. Ruzycki;D. L. Ederer;U. Diebold .Epitaxial growth and properties of ferromagnetic co-doped TiO_(2) anatase[J].Applied physics letters,2001(21):3467-3469. |
| [7] | V. Shutthanandan;S. Thevuthasan;S. M. Heald;T. Droubay;M. H. Engelhard;T. C. Kaspar;D. E. McCready;L. Saraf;S. A. Chambers;B. S. Mun;N. Hamdan;P. Nachimuthu;B. Taylor;R. P. Sears;B. Sinkovic .Room-temperature ferromagnetism in ion-implanted Co-doped TiO_(2)(110) rutile[J].Applied physics letters,2004(22):4466-4468. |
| [8] | Y. L. Soo;G. Kioseoglou;S. Kim;Y. H. Kao;P. Sujatha Devi;John Parise;R. J. Gambino;P. I. Gouma .Local environment surrounding magnetic impurity atoms in a structural phase transition of Co-doped TiO_(2) nanocrystal ferromagnetic semiconductors[J].Applied physics letters,2002(4):655-657. |
| [9] | Bally AR.;Schmid PE.;Levy F.;Bussy F.;Korobeinikova EN. .Structural and electrical properties of Fe-doped TiO2 thin films[J].Journal of Physics, D. Applied Physics: A Europhysics Journal,1998(10):1149-1154. |
| [10] | Wang Z;Wang W;Tang J et al.Extraordinaty Hall effect and ferromagnetism in Fe-doped TiO2 reduced rutile[J].Applied Physics Letters,2003,83(03):518-521. |
| [11] | Lee H.M;Kim S.J;Shim I B .oral Coexistence of Ferromagnetic and Paramagnetic Phases in Ti0 95Fe0 05O2[J].Journal of Magnetism and Magnetic Materials,2004,272-276:E1565-E1566. |
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