1. 毕业设计（论文）的内容和要求

本课题利用溶胶凝胶法制备出半金属锰氧化物，探索退火时通过样品的磁场对其微结构及物性（特别是磁电阻）的影响。

论文要求： 1.中外文献要求查阅有关磁电阻等方面的中外图书和期刊；2.研究中需要掌握磁学和固体物理学的基础知识；同时学会制备方法：化学原料配备，溶胶凝胶合成，马弗炉设置，电流源使用等。

以及材料物性测量表征方法：xrd、sem、vsm（m-h loop，m-t）、四探针测电阻等。

2. 参考文献

[1] 胡安, 章维益, 固体物理学, 高等教育出版社, 北京, 2005. [2] 冯端, 金国钧, 凝聚态物理学, 高等教育出版社, 北京, 2003. [3] P. Kapitza, The study of the specific resistance of bismuth crystals and its change in strong magnetic fields and some allied problems. Proc. R. Soc. A 119 (1928) 358-443. [4] P. Kapitza, The change of electrical conductivity in strong magnetic fields Part I - Experimental results. Proc. R. Soc. A 123 (1929) 292-341. [5] P. Kapitza, The change of electrical conductivity in strong magnetic fields Part II - The analysis and the interpretation of the experimental results. Proc. R. Soc. A 123 (1929) 342-372. [6] I. M. Lifshitz, and V. G. Peschanskii, Galvanomagnetic characteristics of metals with open fermi surfaces .1. Sov. Phy. JETP 8 (1959) 875-883. [7] I. M. Lifshitz, and V. G. Peschanskii, Galvanomagnetic characteristics of metals with open fermi surfaces .2. Sov. Phys. JETP 11 (1960) 137-141. [8] A. A. Abrikosov, Galvanomagnetic Phenomena in Metals in the Quantum Limit. Sov. Phys. JETP 29 (1969) 746-753. [9] R. Xu, A. Husmann, T. F. Rosenbaum, M. L. Saboungi, J. E. Enderby, and P. B. Littlewood, Large magnetoresistance in non-magnetic silver chalcogenides. Nature (London) 390 (1997) 57-60. [10] A. A. Abrikosov, Quantum magnetoresistance. Phys. Rev. B 58 (1998) 2788-2794. [11] X. Wang, Y. Du, S. Dou, and C. Zhang, Room Temperature Giant and Linear Magnetoresistance in Topological Insulator Bi2Te3 Nanosheets. Phys. Rev. Lett. 108 (2012) 266806. [12] A. A. Abrikosov, Quantum magnetoresistance of layered semimetals. Phys. Rev. B 60 (1999) 4231-4234. [13] M. M. Parish, and P. B. Littlewood, Non-saturating magnetoresistance in heavily disordered semiconductors. Nature (London) 426 (2003) 162-165. [14] J. Hu, and T. F. Rosenbaum, Classical and quantum routes to linear magnetoresistance. Nat. Mater. 7 (2008) 697-700. [15] M. P. Delmo, S. Yamamoto, S. Kasai, T. Ono, and K. Kobayashi, Large positive magnetoresistive effect in silicon induced by the space-charge effect. Nature (London) 457 (2009) 1112-1115. [16] C. Wan, X. Zhang, X. Gao, J. Wang, and X. Tan, Geometrical enhancement of low-field magnetoresistance in silicon. Nature (London) 477 (2011) 304-307. [17] A. L. Friedman, J. L. Tedesco, P. M. Campbell, J. C. Culbertson, E. Aifer, F. K. Perkins, R. L. Myers-Ward, J. K. Hite, C. R. Eddy, Jr., G. G. Jernigan, and D. K. Gaskill, Quantum Linear Magnetoresistance in Multilayer Epitaxial Graphene. Nano Lett. 10 (2010) 3962-3965.

3. 毕业设计（论文）进程安排

2015年12月 选择课题方向， 参加第一次毕业论文会布置毕业论文任务。

2016年1月初 搜集资料、整理信息，最终确定论文题目并撰写开题报告。

2016年1月中 参加毕业论文小组讨论会，完成开题。