Crystal structure of new R2TAl4Ge2 (R = Y, Gd-Er, T = Fe, Co) quaternary compounds and magnetic properties of Gd2TAl4Ge2
Crystal structure of new R2TAl4Ge2 (R = Y, Gd-Er, T = Fe, Co) quaternary compounds and magnetic properties of Gd2TAl4Ge2
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新型R2TAl4Ge2（R=Y、Gd-Er、T=Fe、Co）四元化合物的晶体结构及Gd2TAl4Ge2的磁性能
DOI：
10.1016/j.jallcom.2015.02.033
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发表时间：
2015-06
影响因子：
6.2
通讯作者：
Lin, Guoqiang
中科院分区：
文献类型：
--
作者：
He, Wei;Zeng, Weijing;Yang, Tonghan;Lin, Guoqiang
The new R2TAl4Ge2(R = Y, Gd–Er, T = Fe, Co) quaternary compounds have been synthesized and studied by powder XRD, SEM and MPMS techniques. It is found that the R2TAl4Ge2compounds crystallized in the tetragonal Tb2NiAl4Ge2-type structure with space groupI4/mmm(No. 139). The crystal structures of Gd2CoAl4Ge2and Gd2FeAl4Ge2were successfully refined by using Rietveld method. The magnetic measurements of Gd2CoAl4Ge2and Gd2FeAl4Ge2show antiferromagnetic ordering at lower temperature. The susceptibilities of Gd2CoAl4Ge2and Gd2FeAl4Ge2are followed perfectly by Curie–Weiss behavior in high temperature region. The magnetic measurement shows that the effective magnetic moment isμeff= 8.10μB(per Gd atom) and the paramagnetic Curie temperature isθp= −31.1 K for Gd2CoAl4Ge2, while the effective magnetic moment of Gd2FeAl4Ge2isμeff= 8.27μB(per Gd atom) and the paramagnetic Curie temperature isθp= −13.7 K. The isothermal magnetization of Gd2TAl4Ge2(T = Fe, Co) were also investigated.
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影响因子：
4.6
作者：
Chan, George H.;Liu, Ming-Ling;Ibers, James A.
通讯作者：
Ibers, James A.
影响因子：
8.6
作者：
B. Sieve;Danielle L. Gray;R. Henning;T. Bakas;A. Schultz;M. Kanatzidis
通讯作者：
B. Sieve;Danielle L. Gray;R. Henning;T. Bakas;A. Schultz;M. Kanatzidis
影响因子：
1.6
作者：
Z. Gu;G. Cheng;B. Zhou;J. Cheng;M. Jiang
通讯作者：
Z. Gu;G. Cheng;B. Zhou;J. Cheng;M. Jiang
影响因子：
15
作者：
B. Sieve;X. Z. Chen;R. Henning;P. Brazis;C. Kannewurf;J. Cowen;A. Schultz;M. Kanatzidis
通讯作者：
B. Sieve;X. Z. Chen;R. Henning;P. Brazis;C. Kannewurf;J. Cowen;A. Schultz;M. Kanatzidis
DOI：
10.1002/1521-3749(200207)628:7
发表时间：
2002-07
期刊：
Zeitschrift für anorganische und allgemeine Chemie
影响因子：
--
作者：
B. Sieve;P. Trikalitis;M. Kanatzidis
通讯作者：
B. Sieve;P. Trikalitis;M. Kanatzidis