Lanthanide contraction effect on crystal structures, magnetic, and dielectric properties in ordered double perovskites LnPbCoSbO(6) (Ln = La, Pr, Nd)
文献类型：期刊论文
| 作者 | Han,L. ; Bai,Y.J. ; Meng,F.Z. ; Liu,X.J. ; Yao,C.G. ; Meng,J.L. ; Liang,Q.S. ; Wu,X.J. ; Meng,J. |
| 刊名 | journal of applied physics
 |
| 出版日期 | 2014 |
| 卷号 | 115期号:16页码:164105 |
| 关键词 | ROOM-TEMPERATURE MAGNETORESISTANCE ANTIFERROMAGNETISM LA2NIMNO6 SR2COSBO6 COBALT |
| 通讯作者 | liu,xj |
| 英文摘要 | the crystal structures, magnetic, and dielectric properties for the ordered double perovskites lnpbcosbo(6) (ln -la, pr, nd) have been investigated. the crystal structure has been solved by rietveld refinements of x-ray diffraction data in the monoclinic space group p2(1)/n (no. 14). the co2+ and sb5+ ions are almost fully ordered over the b-site, and the octahedral framework displays significant tilting distortion according to the glazer's tilt system a(-)a(-)c(+). as the result of lanthanide contraction from la3+ to nd3+, the b-site sublattice distortions become stronger accompanying with the reduction of the tolerance factor and coordination number. the magnetization measurements show an antiferromagnetic ordering with large effective magnetic moments (mu(eff)) suggesting that the orbital component is significant. the maximum values of isothermal magnetization increase with the decrease in radii of rare earth ions, which is attributed to the weakening of antiferromagnetic interaction via co2+-o-sb5+-o-co2+ paths. the dielectric constants present frequency dependence and monotonically decrease with the ionic radii reduction from la3+ to nd3+ due to the suppression of electron transfer. these results indicate that the magnetic and dielectric properties can be tuned by controlling the degree of lattice distortion, which is realized by introducing different ln(3+) ions at the a-site. (c) 2014 aip publishing llc. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2015-10-27 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/57433]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Han,L.,Bai,Y.J.,Meng,F.Z.,et al. Lanthanide contraction effect on crystal structures, magnetic, and dielectric properties in ordered double perovskites LnPbCoSbO(6) (Ln = La, Pr, Nd)[J]. journal of applied physics,2014,115(16):164105. |
| APA | Han,L..,Bai,Y.J..,Meng,F.Z..,Liu,X.J..,Yao,C.G..,...&Meng,J..(2014).Lanthanide contraction effect on crystal structures, magnetic, and dielectric properties in ordered double perovskites LnPbCoSbO(6) (Ln = La, Pr, Nd).journal of applied physics,115(16),164105. |
| MLA | Han,L.,et al."Lanthanide contraction effect on crystal structures, magnetic, and dielectric properties in ordered double perovskites LnPbCoSbO(6) (Ln = La, Pr, Nd)".journal of applied physics 115.16(2014):164105. |
入库方式： OAI收割
来源：长春应用化学研究所
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