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MgB2和Mg0.93Li0.07B2的电阻率与霍尔效应研究

李慧玲 阮可青 李世燕 莫维勤 樊荣 罗习刚 陈仙辉 曹烈兆

引用本文:
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MgB2和Mg0.93Li0.07B2的电阻率与霍尔效应研究

李慧玲, 阮可青, 李世燕, 莫维勤, 樊荣, 罗习刚, 陈仙辉, 曹烈兆

STUDY ON THE RESISTIVITY AND HALL EFFECT OF MgB2 AND Mg0.93Li0.07B2

LI HUI-LING, RUAN KE-QING, LI SHI-YAN, MO WEI-QIN, FAN RONG, LUO XI-GANG, CHEN XIAN-HUI, CAO LIE-ZHAO
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  • 测量了MgB2和Mg0.93Li0.07B2的电阻率ρ(T)与霍尔系数RH(T)的温度依赖关系.电阻率的测量结果表明,MgB2和Mg0.93Li0.07B2的正常态电阻率与温度有平方的依赖关系.MgB2和Mg0.93Li0.07B2
    The temperature dependences of resistivity and Hall coefficient of MgB2 and Mg0.93Li0.07B2 were measured, and the temperature dependence of cot-ΘH was calculated. The result of resistivity indicates that MgB2 and Mg0.93Li0.07B2 nearly have the same transition temperature. The-possible effect on transition temperature has been discussed. The measurement of Hall coefficient suggests the type of charge carriers is hole, and the Hall coefficient of Mg0.93Li0.07B2 becomes a little smaller compared with that of MgB2 which is attributed to Li doping . Both the decrease with increasing temperature-and-the temperature dependence of cotangent of Hall angle are proportional to the square of temperature.
    • 基金项目: 国家重点基础研究专项经费(批准号:G19990646)资助的课题.
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  • 文章访问数:  6642
  • PDF下载量:  1003
  • 被引次数: 0
出版历程
  • 收稿日期:  2001-05-17
  • 修回日期:  2001-06-20
  • 刊出日期:  2001-05-05

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