Boson peak in Sm-Al-Co ternary metallic glasses and its possible structural origin

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	Boson peak in Sm-Al-Co ternary metallic glasses and its possible structural origin; Boson peak in Sm-Al-Co ternary metallic glasses and its possible structural origin
	H. M. Liu; C. L. Lu; K. F. Wang; J. M. Liu; Q. Wang; C. Dong
	2010 ; 2010
发表期刊	Chinese Physics B ; Chinese Physics B
ISSN	1674-1056 ; 1674-1056
卷号	19 期号:1
摘要	The low temperature specific heat of Sm-Al-Co ternary metallic glasses is investigated and a clear anomaly associated with the Boson peak is identified. While this anomaly depends slightly on the chemical composition, it has no dependence on external magnetic field. To figure out the mechanism of the Boson peak, we interpret the data within various model frameworks. Unlike earlier work, our study shows that this Boson peak is mainly ascribed to an additional T(2) term of the specific heat, which may originate from the quasi-two-dimensional and short-range ordered structure units possibly existing in the metallic glasses.; The low temperature specific heat of Sm-Al-Co ternary metallic glasses is investigated and a clear anomaly associated with the Boson peak is identified. While this anomaly depends slightly on the chemical composition, it has no dependence on external magnetic field. To figure out the mechanism of the Boson peak, we interpret the data within various model frameworks. Unlike earlier work, our study shows that this Boson peak is mainly ascribed to an additional T(2) term of the specific heat, which may originate from the quasi-two-dimensional and short-range ordered structure units possibly existing in the metallic glasses.
部门归属	[liu hui-mei; lu cheng-liang; wang ke-feng; liu jun-ming] nanjing univ, solid state microstruct lab, nanjing 210093, peoples r china. [wang ke-feng; liu jun-ming] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china. [wang qing; dong chuang] dalian univ technol, state key lab mat modificat, dalian 116024, peoples r china.;liu, jm (reprint author), nanjing univ, solid state microstruct lab, nanjing 210093, peoples r china;liujm@nju.edu.cn ; [liu hui-mei; lu cheng-liang; wang ke-feng; liu jun-ming] nanjing univ, solid state microstruct lab, nanjing 210093, peoples r china. [wang ke-feng; liu jun-ming] chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china. [wang qing; dong chuang] dalian univ technol, state key lab mat modificat, dalian 116024, peoples r china.;liu, jm (reprint author), nanjing univ, solid state microstruct lab, nanjing 210093, peoples r china;liujm@nju.edu.cn
关键词	Metallic Glasses Metallic Glasses Boson Peak Boson Peak Specific Heat Specific Heat Mode-dynamics Model Mode-dynamics Model Thermal-conductivity Thermal-conductivity Heat Heat Excitations Excitations Liquids Liquids
URL	查看原文 ; 查看原文
WOS记录号	WOS:000273586000073 ; WOS:000273586000073
引用统计	被引频次：2[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31291
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	H. M. Liu,C. L. Lu,K. F. Wang,et al. Boson peak in Sm-Al-Co ternary metallic glasses and its possible structural origin, Boson peak in Sm-Al-Co ternary metallic glasses and its possible structural origin[J]. Chinese Physics B, Chinese Physics B,2010, 2010,19, 19(1).
APA	H. M. Liu,C. L. Lu,K. F. Wang,J. M. Liu,Q. Wang,&C. Dong.(2010).Boson peak in Sm-Al-Co ternary metallic glasses and its possible structural origin.Chinese Physics B,19(1).
MLA	H. M. Liu,et al."Boson peak in Sm-Al-Co ternary metallic glasses and its possible structural origin".Chinese Physics B 19.1(2010).