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

Hui-Ling Li | Zendy; Ruan Ke-Qing | Zendy; Li Shi-Yan | Zendy; Mo Wei-Qin | Zendy; Rong Fan | Zendy; LUO XI-GANG | Zendy; Chen Xianhui | Zendy; Cao Liezhao | Zendy

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

Author(s) -

Hui-Ling Li,

Ruan Ke-Qing,

Li Shi-Yan,

Mo Wei-Qin,

Rong Fan,

LUO XI-GANG,

Chen Xianhui,

Cao Liezhao

Publication year - 2001

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.50.2044

Subject(s) - hall effect , condensed matter physics , electrical resistivity and conductivity , materials science , doping , temperature coefficient , transition temperature , charge carrier , superconductivity , physics , composite material , quantum mechanics

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.

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