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  4. 中科院固体物理研究所
Alloying effects on structural, magnetic, and electrical/thermal transport properties in MAX-phase Cr2-xMxGeC (M = Ti, V, Mn, Fe, and Mo)

文献类型：期刊论文

作者Lin, Shuai1; Huang, Yanan1; Zu, Lin1; Kan, Xucai1; Lin, Jianchao1; Song, Wenhai1; Tong, Peng1; Zhu, Xuebin1; Sun, Yuping1,2,3
刊名JOURNAL OF ALLOYS AND COMPOUNDS
出版日期2016-09-25
卷号680期号:无页码:452-461
关键词Max-phase Alloying Effect Structure Magnetism Electrical/thermal Transport
DOI10.1016/j.jallcom.2016.04.197
文献子类Article
英文摘要Herein we systematically investigated the alloying effects on structural, magnetic, and electrical/thermal transport properties in MAX-phase Cr2-xMxGeC (M = Ti, V, Mn, Fe, and Mo). The alloying of M with the larger covalent radius than that of Cr increases lattice constants (a and c) as well as unit cell volume (V) of Cr2-xMxGeC, and vice versa. However, the c/a ratio monotonously decreases with increasing alloying level x, which is due to a larger change of a than that of c. The Pauli paramagnetic ground state of Cr2GeC is confirmed by magnetic measurements and low-temperature specific heat analysis. Interestingly, ferromagnetism can be introduced in Cr2-xMxGeC by doping magnetic elements (Mn and Fe) and nonmagnetic elements (Ti and Mo), which may be due to a reconstruction of the Fermi surface caused by chemical doping. All our samples show a metal-like electrical transport behavior, and the residual resistivity ratio decreases with increasing alloying concentration, which are mainly attributed to the disorders induced by alloying. The change of electron specific heat coefficient is consistent with the change of density state of Fermi surface in Cr2-xMxGeC. In addition, solid-solution scattering is the dominant factor for the behavior of thermal conductivity k(T) in Cr2-xVxGeC, while enhanced phonon scattering induced by alloying is the decisive factor for the change of k(T) in Cr2-xMoxGeC. The positive Seebeck coefficient of Cr2-xVxGeC and Cr2-xMoxGeC may be close related to the decrease of structural anisotropy. (C) 2016 Elsevier B.V. All rights reserved.
WOS关键词COMPRESSIVE BEHAVIOR ; THERMAL-PROPERTIES ; ELASTIC PROPERTIES ; TI3SIC2 ; CR2GEC ; TI2ALC ; THERMOPOWER ; EXPANSION ; STABILITY ; CERAMICS
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000376109000063
资助机构National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; 51322105) ; 51322105) ; 51322105) ; 51322105) ; 51322105) ; 51322105) ; 51322105) ; 51322105) ; 51322105) ; 51322105) ; 51322105) ; 51322105) ; 51322105) ; 51322105) ; 51322105) ; 51322105) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Key Basic Research(2011CBA00111) ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; National Natural Science Foundation of China(51301165 ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; Youth Innovation Promotion Association of CAS(2014283) ; 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源URL[http://ir.hfcas.ac.cn:8080/handle/334002/22006]  
专题合肥物质科学研究院_中科院固体物理研究所
合肥物质科学研究院_中科院强磁场科学中心
作者单位1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
2.Chinese Acad Sci, High Field Magnet Lab, Hefei 230031, Peoples R China
3.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China
推荐引用方式
GB/T 7714		 Lin, Shuai,Huang, Yanan,Zu, Lin,et al. Alloying effects on structural, magnetic, and electrical/thermal transport properties in MAX-phase Cr2-xMxGeC (M = Ti, V, Mn, Fe, and Mo)[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2016,680(无):452-461.
APA Lin, Shuai.,Huang, Yanan.,Zu, Lin.,Kan, Xucai.,Lin, Jianchao.,...&Sun, Yuping.(2016).Alloying effects on structural, magnetic, and electrical/thermal transport properties in MAX-phase Cr2-xMxGeC (M = Ti, V, Mn, Fe, and Mo).JOURNAL OF ALLOYS AND COMPOUNDS,680(无),452-461.
MLA Lin, Shuai,et al."Alloying effects on structural, magnetic, and electrical/thermal transport properties in MAX-phase Cr2-xMxGeC (M = Ti, V, Mn, Fe, and Mo)".JOURNAL OF ALLOYS AND COMPOUNDS 680.无(2016):452-461.

入库方式： OAI收割

来源：合肥物质科学研究院

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