Influence of Joule heating on electrical resistivity in Co-rich amorphous microwires

被引：2

作者：

Gudoshnikov, S. A. ^{[1
,2
]}

Odintsov, V., I ^{[2
]}

Popova, A., V ^{[2
]}

Menshov, S. A. ^{[2
]}

Liubimov, B. Ya ^{[2
]}

Grebenshchikov, Yu B. ^{[2
,3
]}

Mashera, V. S. ^{[1
]}

Tarasov, V. P. ^{[1
]}

机构：

[1] Natl Univ Sci & Technol MISIS, Leninskiy Pr 4, Moscow 119049, Russia

[2] Russian Acad Sci, Pushkov Inst Terr Magnetism Ionosphere & Radio Wa, IZMIRAN, Kaluzhskoe Sh 4, Moscow 108840, Russia

[3] Financial Univ, Govt Russian Federat, FU, Moscow 125993, Russia

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2021年 / 271卷

基金：

俄罗斯科学基金会;

关键词：

Amorphous ferromagnetic microwires; DC Joule heating; Resistance measurements; Crystallization; GIANT MAGNETOIMPEDANCE; MAGNETIC-PROPERTIES; RESISTANCE; ALLOYS; NB;

D O I：

10.1016/j.mseb.2021.115310

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The paper investigates the electrical resistivity of two types of the glass-coated Co-rich amorphous ferromagnetic microwires during the Joule heating by direct current. We measured the relationships between the microwire's resistivity and the power, which applied to the samples in as-prepared and crystallized conditions. Both types of microwires were demonstrated to completely crystallize on exposure to a temperature of more than 600 degrees C. During heating by a power up to 2.5 W (-400 degrees C), the microwires with Mo-Ni content were characterized by a monotonic resistivity increase with the temperature. But the microwires with Cr content had a well-marked resistivity minimum near the temperature T-M similar to 163 degrees C. This minimum shifted to a temperature value of -260 degrees C after annealing. The research shows that the temperature dependence of resistivity in the temperature range below T-M obeys the f(T) = -ln(T) law.

引用

页数：5

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