| MnFeP_(0.63)Ge(0.12)Si_(0.25)B_x(x=0,0.01,0.02,0.03)化合物的磁热效应 |
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| 引用本文： | 王冬梅,松林,王耀辉,张伟,毕力格,特古斯.MnFeP_(0.63)Ge(0.12)Si_(0.25)B_x(x=0,0.01,0.02,0.03)化合物的磁热效应[J].金属学报,2011(3). |
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| 作者姓名： | 王冬梅 松林 王耀辉 张伟 毕力格 特古斯 |
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| 作者单位： | 内蒙古师范大学内蒙古自治区功能材料物理与化学重点实验室; |
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| 基金项目： | 国家自然科学基金项目50961010; 内蒙古自然科学基金项目20080404ZD09; 内蒙古师范大学研究生科研创新基金项目CXJJS10034资助~~ |
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| 摘 要： | 对MnFeP_(0.63)Ge_(0.12)Si_(0.25)B_x(x=0,0.01,0.02,0.03,原子分数)化合物的结构和磁热效应(MCE)进行了研究.XRD分析结果表明:MnFeP_(0.63)Ge_(0.12)Si_(0.25)B_x(x=0,0.01,0.02,0.03)的主相均为Fe_2P型六角结构,空间群为P62m.随着B含量的增加晶格常数a增大c减小,晶胞体积基本保持不变.磁性测量表明:随着B含量由0增加到0.03时,Curie温度(T_C)从300 K升到347 K,热滞分别为20,17,11和6 K.0-1.5 T外磁场下最大磁熵变△S_M分别为14.83,11.41,11.26和11.8 J/(kg·K).
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| 关 键 词： | 磁热效应 热滞 Curie温度 相变 |
MAGNETOCALORIC EFFECT IN MnFeP_(0.63)Ge_(0.12)Si_(0.25)B_x(x=0,0.01,0.02,0.03)COMPOUNDS |
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| WANG Dongmei,SONG Lin,WANG Yaohui,ZHANG Wei,Bilige,Tegus O Inner Mongolia Key Laboratory for Physics , Chemistry of Functional Materials,Inner Mongolia Normal University,Hohhot.MAGNETOCALORIC EFFECT IN MnFeP_(0.63)Ge_(0.12)Si_(0.25)B_x(x=0,0.01,0.02,0.03)COMPOUNDS[J].Acta Metallurgica Sinica,2011(3). |
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| Authors: | WANG Dongmei SONG Lin WANG Yaohui ZHANG Wei Bilige Tegus O Inner Mongolia Key Laboratory for Physics Chemistry of Functional Materials Inner Mongolia Normal University Hohhot |
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| Affiliation: | WANG Dongmei,SONG Lin,WANG Yaohui,ZHANG Wei,Bilige,Tegus O Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials,Inner Mongolia Normal University,Hohhot 010022 |
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| Abstract: | Structural and magnetocaloric properties of the MnFeP_(0.63)Ge_(0.12)Si_(0.25)B_x(x=0, 0.01,0.02,0.03,atomic fraction) compounds have been investigated.XRD result shows that the MnFeP_(0.63)Ge_(0.12)Si_(0.25)B_x(x=0,0.01,0.02,0.03) compounds mainly consist of the Fe_2P-type hexagonal structure phase with space group P62m.It is found that the lattice parameter a increases and the lattice parameter c slightly decreases with increasing x,and the unit cell volume does not change.The magnetic measurements show t... |
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| Keywords: | magnetocaloric effect thermal hysteresis Curie temperature phase transition |
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