Mn-based antiperovskite functional materials: Review of research

Mn-based antiperovskite functional materials: Review of research
复制标题

锰基反钙钛矿功能材料:研究综述

DOI:
10.1088/1674-1056/22/6/067501
复制
发表时间:
2013-06
期刊:
影响因子:
1.7
通讯作者:
Y.P.Sun
Y.P.Sun
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
P. Tong;B. S. Wang;Y.P.Sun

文献摘要

参考文献

被引文献

相似文献

概述了我们近年来对Mn基反钙钛矿功能材料AXMn 3(A:金属或半导体元素; X:C或N)的研究。反钙钛矿碳化物(例如,AlCMn 3)显示出与典型磁制冷材料相当的大的磁热效应。在50 kOe(1 Oe = 79.5775 Am−1)下,在宽的温度范围内,在Ga 1 − xZnxCMn 3和GaCMn 3 −xNix中获得了高达70%的增强巨磁电阻。在Cu0.3Sn0.5NMn3.2中,负热膨胀(NTE)在覆盖室温(α = −6.8 ppm/K,150 K-400 K)的宽温度区域内实现。中子对分布函数分析表明,Cu/Sn-Mn键的涨落是Cu 1 − xSnxNMn 3中NTE的驱动力。在CuN 1 − xCxMn 3和CuNMn 3 −yCoy中,电阻率温度系数(TCR)随着Co或C含量的增加而从正到负单调减小。当组成接近临界点时,TCR极低。例如,CuN0.95C0.05Mn3在240 K和320 K之间的TCR为约1.29 ppm/K,这是典型的低TCR材料(约25 ppm/K)的二十分之一。通过对临界标度行为和X亏损效应的研究,在电子巡游磁性的背景下发现了局域电子磁性的一些线索。
Our recent research on the Mn-based antiperovskite functional materials AXMn3 (A: metal or semiconducting elements; X: C or N) is outlined. Antiperovskite carbides (e.g., AlCMn3) show large magnetocaloric effect comparable to those of typical magnetic refrigerant materials. Enhanced giant magnetoresistance up to 70% at 50 kOe (1 Oe = 79.5775 Am−1) over a wide temperature span was obtained in Ga1−xZnxCMn3 and GaCMn3−xNix. In Cu0.3Sn0.5NMn3.2, negative thermal expansion (NTE) was achieved in a wide temperature region covering room temperature (α = −6.8 ppm/K, 150 K–400 K). Neutron pair distribution function analysis suggests the Cu/Sn-Mn bond fluctuation is the driving force for the NTE in Cu1−xSnxNMn3. In CuN1−xCxMn3 and CuNMn3−yCoy, the temperature coefficient of resistivity (TCR) decreases monotonically from positive to negative as Co or C content increases. TCR is extremely low when the composition approaches the critical points. For example, TCR is ~ 1.29 ppm/K between 240 K and 320 K in CuN0.95C0.05Mn3, which is one twentieth of that in the typical low-TCR materials (~ 25 ppm/K). By studying the critical scaling behavior and X deficiency effect, some clues of localized-electron magnetism have been found against the background of electronic itinerant magnetism.
DOI: 10.1083/jcb.1751iti5
发表时间: 2006-10-09
期刊: The Journal of Cell Biology
影响因子: --
作者:
Leslie M
通讯作者: Leslie M
DOI: 10.1016/0038-1098(70)90579-x
发表时间: 1970-01
影响因子: 2.1
作者:
D. Fruchart;E. F. Bertaut;F. Sayetat;M. N. Eddine;R. Fruchart;J. Sénateur
通讯作者: D. Fruchart;E. F. Bertaut;F. Sayetat;M. N. Eddine;R. Fruchart;J. Sénateur
DOI: 10.1063/1.2822813
发表时间: 2007-12
影响因子: 4
作者:
Ying Sun;Cong Wang;Yongchun Wen;K. Zhu;Jingtai Zhao
通讯作者: Ying Sun;Cong Wang;Yongchun Wen;K. Zhu;Jingtai Zhao
DOI: 10.1063/1.1419048
发表时间: 2001-11-12
影响因子: 4
作者:
Wada, H;Tanabe, Y
通讯作者: Tanabe, Y
DOI: 10.1063/1.2917472
发表时间: 2008-04-21
影响因子: 4
作者:
Asano, K.;Koyama, K.;Takenaka, K.
通讯作者: Takenaka, K.