采用脉冲激光沉积(PLD)方法在单晶Si(100)衬底上制备Zn1-xMgxO薄膜,研究了退火温度和氧压对Zn1-xMgxO薄膜的结构和磁性的影响.结果表明,Mg掺入量影响ZnO结构相变,当x≥0.25时,Zn1-xMgxO薄膜由六角纤锌矿结构变为立方结构,同时磁性增强.随着氧压的增大和后续退火温度的升高,都会使饱和磁化强度(Ms)呈先增大后减小的趋势.分析表明磁性的变化都与样品中的表面缺陷浓度有关.
参考文献
| [1] | Dietl T;Ohno H;Matsukura F et al.Zener Model Description of Ferromagnetism in Zinc-Blende Magnetic Semiconductors[J].Science,2000,287:1019-1022. |
| [2] | Sang Sub Kim;Jong Ha Moon;Byung-Teak Lee;Oh Sung Song;Jung Ho Je .Heteroepitaxial growth behavior of Mn-doped ZnO thin films on Al_(2)O_(3) (0001) by pulsed laser deposition[J].Journal of Applied Physics,2004(2):454-459. |
| [3] | Ben Mahmoud A;von Bardeleben HJ;Cantin JL;Mauger A;Chikoidze E;Dumont Y .From ferromagnetic to antiferromagnetic interactions in n-type Zn1-xMnxO: An electron paramagnetic resonance study[J].Physical review, B. Condensed matter and materials physics,2006(11):5203-1-5203-5-0. |
| [4] | Fukumura T;Jin Z W;Kawasaki M et al.Magnetic Properties of Mn-Doped ZnO[J].Applied Physics Letters,2001,78:958-960. |
| [5] | S. W. Jung;S.-J. An;Gyu-Chul Yi;C. U. Jung;Sung-Ik Lee;Sunglae Cho .Ferromagnetic properties of Zn_(1-x)Mn_(x)O epitaxial thin films[J].Applied physics letters,2002(24):4561-4563. |
| [6] | Lawes G;Risbud AS;Ramirez AP;Seshadri R .Absence of ferromagnetism in Co and Mn substituted polycrystalline ZnO[J].Physical review, B. Condensed matter and materials physics,2005(4):5201-1-5201-5-0. |
| [7] | Kittilstved KR;Norberg NS;Gamelin DR .Chemical manipulation of High-T-C ferromagnetism in ZnO diluted magnetic semiconductors[J].Physical review letters,2005(14):7209-1-7209-4-0. |
| [8] | Rubi D;Fontcuberta J;Calleja A;Aragones L;Capdevila XG;Segarra M .Reversible ferromagnetic switching in ZnO :(Co, Mn) powders[J].Physical review, B. Condensed matter and materials physics,2007(15):5322-1-5322-6-0. |
| [9] | Ferhat M;Zaoui A;Ahuja R .Magnetism and Band Gap Narrowing in Cu-Doped ZnO[J].Applied Physics Letters,2009,94:142502. |
| [10] | Ma Y W;Ding J;Yi J B et al.lnducing Ferromagnetism in ZnO Through Doping of Nonmagnetic Elemsnts[J].Applied Physics Letters,2008,93:042514. |
| [11] | Ma Y W;Ding J;Qi D C et al.Room Temperature Ferromagnetism of ZnO Nanocrystals in Amorphous ZnO-Al2O3 Matrix[J].Applied Physics Letters,2009,95:072501. |
| [12] | Chen S J;Suzuki K;Garitaonandia J S .Room Temperature Ferromagnetism of ZnO Nanocrystals in Amorphous ZnO-Al2O3 Matrix[J].Applied Physics Letters,2009,95:172507. |
| [13] | Straumal B B;Mazilkin A A;Protasova S G et al.Magnetization Study of Nanograined Pure and Mn-doped ZnO Films:Formation of a Ferromagnetic Grain-Boundary Foam[J].Physical Review B,2009,79:205206. |
| [14] | Zhang X;Cheng Y H;Li L Y et al.Evidence for High-TC Ferromagnetism in Znx (ZnO)1-x Granular Films Mediated by Native Point Defects[J].Physical Review B,2009,80:174427. |
| [15] | 王伟娜,方庆清,周军,王胜男,闫方亮,刘艳美,李雁,吕庆荣.制备工艺对Zn1-xMgxO薄膜结构及光学性能的影响[J].物理学报,2009(05):3461-3467. |
| [16] | 方庆清,王伟娜,周军,王胜男,闫方亮,刘艳美,李雁,吕庆荣.Zn1-xMgxO薄膜的光致发光特性研究[J].物理学报,2009(08):5836-5841. |
| [17] | Khalid M;Ziese M;Setzer A et al.Defect-Induced Magnetic Order in Pure ZnO Films[J].Physical Review B,2009,80:035331. |
| [18] | Schoenhalz A L;Arantes J T;Fazzio A et al.Surface Magnetization in Non-Doped ZnO Nanostructures[J].Applied Physics Letters,2009,94:162503. |
| [19] | Milan Gacic;Gerhard Jakob;Christian Herbort;Hermann Adrian;Thomas Tietze;Sebastian Brueck;Eberhard Goering .Magnetism of Co-doped ZnO thin films[J].Physical review, B. Condensed matter and materials physics,2007(20):205206.1-205206.8. |
| [20] | Chakraborti D;Ramachandran S;Trichy G et al.Magnetic,Electrical,and Microstructural Charactetization of ZnO Thin Films Codoped with Co and Cu[J].Journal of Appl Phps,2007,101:0539. |
| [21] | 程兴旺,李祥,高院玲,于宙,龙雪,刘颖.Co掺杂的ZnO室温铁磁半导体材料制备与磁性和光学特性研究[J].物理学报,2009(03):2018-2022. |
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