Transport properties of Fe60Al40 during the B2 to A2 structural phase transition

被引：4

作者：

Sorokin, Serhii ^{[1
]}

Anwar, Md Shadab ^{[1
,3
]}

Hlawacek, Gregor ^{[1
]}

Boucher, Richard ^{[2
]}

Salgado-Cabaco, Joao ^{[1
,3
]}

Potzger, Kay ^{[1
]}

Lindner, Juergen ^{[1
]}

Fassbender, Juergen ^{[1
,3
]}

Bali, Rantej ^{[1
]}

机构：

[1] Helmholtz Zentrum Dresden Rossendorf, Inst Ion Beam Phys & Mat Res, Dresden, Germany

[2] Tech Univ Dresden, Inst Mat Sci, Dresden, Germany

[3] Tech Univ Dresden, Inst Solid State & Mat Phys, Dresden, Germany

来源：

NEW JOURNAL OF PHYSICS | 2023年 / 25卷 / 09期

关键词：

magnetism; ion beams; phase transitions; transport; magnetic clusters; disorder; scattering; MAGNETISM;

D O I：

10.1088/1367-2630/acdf13

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The variation of transport behavior in a mesoscopic Fe60Al40 wire, initially possessing the ordered B2 -phase structure, has been observed while inducing a phase transition to the disordered A2 phase. Gradual disordering was achieved using a highly focused beam of Ne+ -ions. Both electrical resistance and anomalous Hall effect were measured simultaneously and in situ during the local ion irradiation. The normal as well as the Hall resistivity show a peak as a function of disorder. The relationship between Hall resistivity and normal resistivity shows the presence of two distinct transport regimes during the phase transition. Ex situ field- and temperature-dependence measurements show that it is necessary to consider the effect of scattering from magnetic clusters to understand these different regimes in transport properties.

引用

页数：11

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