Anomalous Hall effect in quarternary Heusler-type Ni50Mn17Fe8Ga25 melt-spun ribbons
文献类型：期刊论文
| 作者 | Zhu, ZY ; Or, SW ; Wu, GH |
| 刊名 | APPLIED PHYSICS LETTERS
 |
| 出版日期 | 2009 |
| 卷号 | 95期号:3 |
| 关键词 | FIELD-INDUCED STRAINS MEMORY ALLOY SYSTEM MARTENSITIC-TRANSFORMATION GIANT MAGNETORESISTANCE MAGNETIC-PROPERTIES FERROMAGNETICS NI2MNGA |
| ISSN号 | 0003-6951 |
| 通讯作者 | Or, SW: Hong Kong Polytech Univ, Dept Elect Engn, Kowloon, Hong Kong, Peoples R China. |
| 中文摘要 | The anomalous Hall effect (AHE) in quarternary Heusler-type Ni50Mn17Fe8Ga25 melt-spun ribbons is investigated. Experimental correlation between saturated anomalous Hall resistivity (rho(M)(A)(S)) and longitudinal resistivity (rho(xx)) is achieved for the low-temperature martensitic phase and the high-temperature austenitic phase as rho(M)(A)(S)infinity rho(n=4.2)(xx) and rho(M)(A)(S)infinity rho(n=2.1)(xx), respectively. The unexpectedly large exponent of n=4.2 in the martensitic phase is found to contradict the traditional theory of AHE with n=1-2, but it can be explained by a side-jump model beyond the short-range limit as a result of the intermediate-range spin-dependent electron scattering by relatively large Mn-rich clusters instead. The restoration of the exponent back to a normal value of n=2.1 in the austenitic phase is ascribed to the domination of the electron scattering by phonons, compared to that by the Mn-rich clusters, at elevated temperatures and with phonon softening in the transverse-acoustic TA(2) mode. |
| 收录类别 | SCI |
| 资助信息 | HKSAR Government [PolyU 5257/06E]; Central Research Grant of The Hong Kong Polytechnic University [A-PA3C] |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/33846]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhu, ZY,Or, SW,Wu, GH. Anomalous Hall effect in quarternary Heusler-type Ni50Mn17Fe8Ga25 melt-spun ribbons[J]. APPLIED PHYSICS LETTERS,2009,95(3). |
| APA | Zhu, ZY,Or, SW,&Wu, GH.(2009).Anomalous Hall effect in quarternary Heusler-type Ni50Mn17Fe8Ga25 melt-spun ribbons.APPLIED PHYSICS LETTERS,95(3). |
| MLA | Zhu, ZY,et al."Anomalous Hall effect in quarternary Heusler-type Ni50Mn17Fe8Ga25 melt-spun ribbons".APPLIED PHYSICS LETTERS 95.3(2009). |
入库方式： OAI收割
来源：物理研究所
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