The interplay between the lattice and magnetism in La(Fe11.4Al1.6)C0.02 studied by powder neutron diffraction

doi:10.1088/1674-1056/21/4/046101

中国物理B ›› 2012, Vol. 21 ›› Issue (4): 46101-046101.doi: 10.1088/1674-1056/21/4/046101

王志翠¹ ²,何伦华²,王海¹,刘荣灯³,王芳卫²

收稿日期:2012-01-04 修回日期:2012-01-10 出版日期:2012-02-29 发布日期:2012-02-29
通讯作者: 王芳卫,fwwang@aphy.iphy.ac.cn E-mail:fwwang@aphy.iphy.ac.cn

The interplay between the lattice and magnetism in La(Fe_11.4Al_1.6)C_0.02 studied by powder neutron diffraction

Wang Zhi-Cui(王志翠)^{a) b)}, He Lun-Hua(何伦华)^b), Wang Hai(王海)^a), Liu Rong-Deng(刘荣灯)^c), and Wang Fang-Wei(王芳卫)^b)†

a. Magneto-Optic Thin Film Laboratory, Department of Physics, Capital Normal University, Beijing 100037, China;
b. ECTSI/CSNS, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
c. China Institute of Atomic Energy, Beijing 102413, China

Received:2012-01-04 Revised:2012-01-10 Online:2012-02-29 Published:2012-02-29
Contact: Wang Fang-Wei,fwwang@aphy.iphy.ac.cn E-mail:fwwang@aphy.iphy.ac.cn
Supported by:
Project supported by the National Basic Research Program of China (973 Program) (Grant No. 2010CB833102) and the National Natural Science Foundation of China (Grant No. 10974244).

摘要/Abstract

Abstract: The crystallographic structure and magnetic properties of La(Fe_11.4Al_1.6)C_0.02 are studied by magnetic measurement and powder neutron diffraction with temperature and applied magnetic field. Rietveld refinement shows that La(Fe_11.4Al_1.6)C_0.02 crystallizes into the cubic NaZn₁₃-type with two different Fe sites: Fe^I (8b) and Fe^II (96i), and that Al atoms preferentially occupy the Fe^II site. A ferromagnetic state can be induced at a medial temperature of 39 K-139 K by an external magnetic field of 0.7 T, and a large lattice is correspondingly found at 100 K and 0.7 T. In all other conditions, La(Fe_11.4Al_1.6)C_0.02 has no net magnetization in the paramagnetic (T>T_N=182 K) or antiferromagnetic states, and thus keeps its small lattice. Analysis of the Fe-Fe bond length indicates that the ferromagnetic state prefers longer Fe-Fe distances.

Key words: neutron diffraction, crystallographic structure, magnetic phase transition

中图分类号: (Neutron diffraction and scattering)

61.05.F-

83.10.Tv (Structural and phase changes)

王志翠, 何伦华, 王海, 刘荣灯, 王芳卫. [J]. 中国物理B, 2012, 21(4): 46101-046101.

Wang Zhi-Cui(王志翠), He Lun-Hua(何伦华), Wang Hai(王海), Liu Rong-Deng(刘荣灯), and Wang Fang-Wei(王芳卫) . The interplay between the lattice and magnetism in La(Fe_11.4Al_1.6)C_0.02 studied by powder neutron diffraction[J]. Chin. Phys. B, 2012, 21(4): 46101-046101.

参考文献 24

[1]	Gschneidner Jr K A, Pecharsky V K and Tsokol A O 2005 Rep. Prog. Phys. 68 1479
[2]	Brück Ekkes 2005 J. Phys. D: Appl. Phys. 38 R381
[3]	Pecharsky V K and Gschneidner Jr K A 1997 Phys. Rev. Lett. 78 4494
[4]	Pecharsky V K and Gschneidner Jr K A 1997 Appl. Phys. Lett. 70 3299
[5]	Tegus O, Brück E, Buschow K H J and de Boer F R 2002 Nature 415 150
[6]	Zhang X X, Wen G H, Wang F W, Wang W H, Yu C H and Wu G H 2000 Appl. Phys. Lett. 77 3072
[7]	Palstra T T M, Nieuwenhuys G J, Mydosh J A and Buschow K H J 1984 J. Appl. Phys. 55 2367
[8]	Helmholdt R B, Palstra T T M, Nieuwenhuys G J, Mydosh J A, van der Kraan A M and Buschow K H J 1986 Phy. Rev. B 34 169
[9]	Hu F X, Shen B G, Sun J R, Cheng Z H, Rao G H and Zhang X X 2001 Appl. Phys. Lett. 78 3675
[10]	Zhang H W, Chen J, Liu G J, Zhang L G, Sun J R and Shen B G 2006 Phys. Rev. B 74 212408
[11]	Wohlfarth E P and Rhodes P 1962 Phil. Mag. 7:83 1817
[12]	Tsutaoka Takanori, Tanaka Akira, Narumi Yasuo, Iwaki Masahiro and Kindo Koichi 2010 Physica B 405 180
[13]	Tang H, Pecharsky V K, Gschneidner Jr K A and Pecharsky A O 2004 Phys. Rev. B 69 064410
[14]	Mudryk Ya, Holm A P, Gschneidner Jr K A and Pecharsky V K 2005 Phys. Rev. B 72 064442
[15]	Moze O, Kockelmann W, Liu J P, de Boer F R and Buschow K H J 2000 J. Appl. Phys. 87 9
[16]	Dong Q Y, Chen J, Zhang H W, Sun J R and Shen B G 2008 J. Phys.: Condens. Matter 20 275235
[17]	Dong Q Y, Zhang H W, Sun J R and Shen B G 2008 J. Phys.: Condens. Matter 20 135205
[18]	Chen J, Zhang H W, Zhang L G, Dong Q Y and Wang R W 2006 Chin. Phys. 15 845
[19]	Wang F W, Wang G J, Hu F X, Kurbakov A, Shen B G and Cheng Z H 2003 J. Phys.: Condens. Matter 15 5269
[20]	Wang F W, Kurbakov A, Wang G J, Hu F X, Shen B G and Cheng Z H 2006 Physica B 385 343
[21]	Miedema A R, de Ch^atel P F and de Boer F R 1981 Physica B 100 1
[22]	Jia L, Sun J R, Wang F W, Zhao T Y, Zhang H W, Shen B G, Li D X, Nimori S, Ren Y and Zeng Q S 2008 Appl. Phys. Lett. 92 101904
[23]	Wang Z C, He L H, Cuevas F, Latroche M, Shen J and Wang F W 2011 Chin. Phys. B 20 067502
[24]	Coey J M D (ed.) 1996 Rare-earth Iron Permanent Magnets (Oxford: Clarendon) p. 512

The interplay between the lattice and magnetism in La(Fe_11.4Al_1.6)C_0.02 studied by powder neutron diffraction

PDF (PC)

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献 24

相关文章 8

Metrics

本文评价

推荐阅读 0

[1]	Jie Chen(陈洁), Zhijian Tan(谭志坚), Weiqiang Liu(刘玮强), Sihao Deng(邓司浩), Shengxiang Wang(王声翔), Liyi Wang(王立毅), Haibiao Zheng(郑海彪), Huaile Lu(卢怀乐), Feiran Shen(沈斐然), Jiazheng Hao(郝嘉政), Xiaojuan Zhou(周晓娟), Jianrong Zhou(周健荣), Zhijia Sun(孙志嘉), Lunhua He(何伦华), and Tianjiao Liang(梁天骄). First neutron Bragg-edge imaging experimental results at CSNS[J]. 中国物理B, 2021, 30(9): 96106-096106.
[2]	刘宝安, 朱丽丽, 刘发付, 孙洵, 陈喜平, 谢雷, 夏元华, 孙光爱, 巨新. Effects of deuteration on the structure of NH₄H₂PO₄ crystals characterized by neutron diffraction[J]. 中国物理B, 2019, 28(1): 16103-016103.
[3]	杨金波, 杨文云, 邵珠印, 梁栋, 赵辉, 夏元华, 杨云波. Mn-based permanent magnets[J]. 中国物理B, 2018, 27(11): 117503-117503.
[4]	冯雷豪, 胡启威, 雷力, 房雷鸣, 戚磊, 张雷雷, 蒲梅芳, 寇自力, 彭放, 陈喜平, 夏元华, 小岛洋平, 大藤宏明, 贺端威, 陈波, 入舩徹男. Neutron powder diffraction and high-pressure synchrotron x-ray diffraction study of tantalum nitrides[J]. 中国物理B, 2018, 27(2): 26201-026201.
[5]	兰司, 吴桢舵, 王循理. Multiscale structures and phase transitions in metallic glasses: A scattering perspective[J]. 中国物理B, 2017, 26(1): 17104-017104.
[6]	房雷鸣, 王云, 陈喜平, 孙光爱, 陈波, 彭述明. A pressure calibration method for a portable wide-access “panoramic” cell[J]. 中国物理B, 2014, 23(11): 110701-110701.
[7]	杨育奇, 李冠男, 王通, 黄清镇, 高庆庆, 李静波, 刘广耀, 骆军, 饶光辉. Neutron diffraction study on composite compound Nd₂Co₇[J]. 中国物理B, 2011, 20(10): 106101-106101.
[8]	Jianjin Zhou(周建晋), Jianrong Zhou(周健荣), Xiaojuan Zhou(周晓娟), Lin Zhu(朱林), Jianqing Yang(杨建清), Guian Yang(杨桂安), Yi Zhang(张毅), Baowei Ding(丁宝卫), Bitao Hu(胡碧涛), Zhijia Sun(孙志嘉), Limin Duan(段利敏), and Yuanbo Chen(陈元柏). A stopping layer concept to improve the spatial resolution of gas-electron-multiplier neutron detector[J]. 中国物理B, 2022, 31(5): 50702-050702.