金属学报  1983, Vol. 19 Issue (1): 53-58

论文 本期目录 | 过刊浏览 |

非晶态(Fe_(1-x)Co_x)_(78)Si_(9.5)B_(12.5)合金的低温电阻率反常

郭慧群;沈保根;詹文山;潘孝硕

中国科学院物理研究所;中国科学院物理研究所;中国科学院物理研究所;中国科学院物理研究所

RESISTIVITY ANOMALY IN METALLIC GLASSES(Fe_(1-x)Co_x)_(78)Si_(9.5)B_(12.5)

GUO Huiqun; SHEN Baogen; ZHAN Wenshan; PAN Xiaoshuo(Institute of Physics; Academia Sinica; Beijing)

郭慧群;沈保根;詹文山;潘孝硕. 非晶态(Fe_(1-x)Co_x)_(78)Si_(9.5)B_(12.5)合金的低温电阻率反常[J]. 金属学报, 1983, 19(1): 53-58.
, , , . RESISTIVITY ANOMALY IN METALLIC GLASSES(Fe_(1-x)Co_x)_(78)Si_(9.5)B_(12.5)[J]. Acta Metall Sin, 1983, 19(1): 53-58.

摘要 参考文献 相关文章 Metrics 全文: PDF(463 KB)   摘要: 用四端引线法测量了4.2K到室温的非晶态(Fe_(1-x)Co_x)_(18)Si_(9.5)B_(12.5)(x=0—1.0)合金的电阻率。结果表明,x=0—1.0的所有样品都出现了电阻率与温度关系的极小值。电阻率极小值温度T_(min)随Co含量x的增加而增加,在x=0.9时出现极大值。在T_(min)温度以下,电阻率与温度关系符合-lnT规律。x=0.5—1.0的样品,电阻率与-lnT关系出现两个斜率。在T_(min)温度以上,约100K以下电阻率符合T~2规律,在约100K以上电阻率则按T~(3/2)规律变化。实验结果表明,约在9.5K和100K温区,电阻率与温度关系可近似表达为:ρ/ρ_(min)=ρ_0+AlnT+BT~2。显现类Kondo型电阻极小。电阻率的T~2关系来源于电子-声子散射。 Abstract：The electrical resistivity measurements of the amorphous (Fe_(1-x)Co_x)_(78)Si_(9.5)B_(12.5)(x=0—1.0) alloys were made by a fourprobe technique at temperature range from 4.2 to 300K. It was found that the resistivity minima have been observed over the whole concentration range for x=0—1.0. The temperature T_(min) at which the resistivity is minimum increased with increaing Co content, and approached to the maximum at x=0.9. Below T_(min) the resistivity can be described by a logarithmic temperature dependence over the whole content. In the temperature range between T_(min) and 100K the resistivity has a T~2 temperature dependence and follows T_(3/2) temperature dependence above 100K. In summary, the temperature dependence of the electrical resistivity for all content may be expressed at temperature range (9.5—100K) by ρ/ρ_(min)=ρ_0+AlnT+BT~2. A Kondo-type resistivity minimum has been observed in these alloys, A T~2 temperature dependence of resistivity may originate from electron-phonon scattering. 收稿日期: 1983-01-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 郭慧群 沈保根 詹文山 潘孝硕 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1983/V19/I1/53 1 Hasegawa, R.; Tsuei, C. C., Phys. Rev. B, 2(1970) , 1631． 2 Hasegawa, R.; Tsuei, C. C., Phys. Rev. B, 3(1971) , 214． 3 Babic, E.; Marohnic, Z.; Ivkov, J., Solid state Commun., 27(1978) , 441． 4 Rapp, o.; Bhagat, S. M.; Johannesson, Ch., ibid., 21(1977) , 83． 5 Tsuei, C. C., Anorphous Magnetism Ⅱ, Proc. of the 2nd Int. Symposium on Amorphous Magnetism, Eds. Levy, R. A.; Hasegawa, R., Plenum Press, New York, 1977, p. 181． 6 Cochrane, R. W.; Harris, R.; Stroem-Olson, J.O.; Zuckermann, M.J., Phys. Rev. Lett., 35(1975) , 676． 7 詹文山;沈保根;郭慧群,待发表. 8 Rao, K. V.; Gudmundsson, H.; Astroem, H. U., J. Appl. Phys., 50(1979) , 1592． 9 Rayne, J. A.; Levy, R. A., Amorphous Magnetism Ⅱ, Proe. of the 2nd Int. Symp. on Amorphous Magnetism, Eds. Levy, R. A.; Hasegawa, R., Plenum Press, New York, 1977, p.319． 10 Tsuei, C. C.; Lilienthal, H., Phys. Rev. B, 13(1976) , 4899． 11 Fujimori, H.; Kikuchi, M.; Obi, Y.; Mosumoto, T., Sci. Repts Res. Inst., Tohaku Univ., A26(1976) , 36． 12 郭慧群;沈保根;俞伯良;詹文山;潘孝硕,待发表. 13 Dreirach, O.; Evans, R.; Jguentherodt, H.; Ukuenzi, H., J. Phys. F: Met. Phys., 2(1972) , 709． 14 Evans, R.; Greenwood, D. A.; Lloyd, P., Phys. Lett., 35A(1971) , 57． 15 Cote, P. J.; Meisel, L. V., Phys. Rev. lett,, 39(1977) , 102． 16 Nagel, S. R., Phys. Rev. B, 16(1977) , 1694． 17 Chou, C. P., Phys. Rev. Lett., 37(1976) , 1004． No related articles found! Viewed Full text Abstract Cited   Shared      Discussed