Low-temperature polymer precursor-based synthesis of nanocrystalline particles of lanthanum calcium manganese oxide (La_(0.67)Ca_(0.33)WnO_3) with enhanced ferromagnetic transition temperature

K. Shantha Shankar; A.K. Raychaudhuri

首页> 外文期刊>Journal of Materials Research >Low-temperature polymer precursor-based synthesis of nanocrystalline particles of lanthanum calcium manganese oxide (La_(0.67)Ca_(0.33)WnO_3) with enhanced ferromagnetic transition temperature

【24h】

Low-temperature polymer precursor-based synthesis of nanocrystalline particles of lanthanum calcium manganese oxide (La_(0.67)Ca_(0.33)WnO_3) with enhanced ferromagnetic transition temperature

机译：铁磁转变温度提高的低温聚合物前驱体基合成镧钙锰氧化物（La_（0.67）Ca_（0.33）WnO_3）纳米晶体颗粒的方法

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

We report a simple modified polymeric precursor route for the synthesis of highly crystalline and homogenous nanoparticles of lanthanum calcium manganese oxide (LCMO). The LCMO phase formation was studied by thermal analysis, x-ray powder diffraction, and infrared spectroscopy at different stages of heating. These nanocrystallites (average particle size of 30 nm) possess ferromagnetic-paramagnetic transition temperature (T_c) of 300 K, nearly 50 K higher than that of a single crystal. The Rietveld analysis of the powder x-ray diffraction data of the nanopowders reveals significant lattice contraction and reduction in unit cell anisotropy-these structural changes are correlated to the enhancement in T_c.

机译：我们报告了一种简单的改性聚合物前体路线，用于合成镧钙锰氧化物（LCMO）的高结晶度和均质纳米颗粒。在加热的不同阶段，通过热分析，X射线粉末衍射和红外光谱研究了LCMO相的形成。这些纳米晶体（平均粒径为30 nm）具有300 K的铁磁-顺磁转变温度（T_c），比单晶高近50K。纳米粉末的粉末X射线衍射数据的Rietveld分析显示出明显的晶格收缩和晶胞各向异性的降低-这些结构变化与T_c的提高有关。

著录项

来源
《Journal of Materials Research》 |2006年第1期|p.27-33|共7页
作者
K. Shantha Shankar; A.K. Raychaudhuri;
展开▼
作者单位

Department of Physics, Indian Institute of Science, Bangalore 560098, India;

展开▼
收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类工程材料学;
关键词

相似文献

外文文献
中文文献
专利

1. Enhanced ferromagnetic transition temperature in nanocrystalline lanthanum calcium manganese oxide (La0.67Ca0.33MnO3) [J] . Shankar KS., Kar S., Subbanna GN., Solid State Communications . 2004,第7期

机译：纳米晶镧钙锰氧化物（La0.67Ca0.33MnO3）中增强的铁磁转变温度
2. Fabrication of ordered array of nanowires of La_(0.67)Ca_(0.33)MnO_(3) (x=0.33) in alumina templates with enhanced ferromagnetic transition temperature [J] . K. Shantha Shankar, Sohini Kar, A. K. Raychaudhuri, Applied Physics Letters . 2004,第6期

机译：具有增强的铁磁转变温度的氧化铝模板中La_（0.67）Ca_（0.33）MnO_（3）（x = 0.33）纳米线有序阵列的制备
3. Reverse micellar synthesis and properties of nanocrystalline GMR materials (LaMnO_3,La_(0.67)Sr_(0.33)MnO_3 and La_(0.67)Ca_(0.33)MnO_3):Ramifications of size considerations [J] . TOKEER AHMAD, KANDALAM V RAMANUJACHARY, SAMUEL E LOFLAND Journal of chemical sciences . 2006,第6期

机译：纳米晶GMR材料（LaMnO_3，La_（0.67）Sr_（0.33）MnO_3和La_（0.67）Ca_（0.33）MnO_3）的反胶束合成与性能：尺寸考虑
4. Effects of (La_(0.67)Ca_(0.33)MnO_3)x(x= 0.0, 0.8, 1.0) additions on the structural and superconducting transition temperature of YBa_2Cu_3O_(7-δ) system [C] . B.N. Fadilah, S.A. Halim, M. Hashim International Conference on Solid State Science and Technology . 2014

机译：（LA_（0.67）CA_（0.33）MNO_3）X（x = 0.0,0.8,1.0）的效果添加YBA_2CU_3O_（7-δ）系统的结构和超导转变温度
5. Low-temperature synthesis and characterization of novel transition metal vanadium oxides and manganese oxides as cathodes for lithium batteries. [D] . Zhang, Fan. 2000

机译：新型过渡金属钒氧化物和锰氧化物作为锂电池阴极的低温合成和表征。
6. Low-Temperature Synthesis of Anatase TiO2 Nanoparticles with Tunable Surface Charges for Enhancing Photocatalytic Activity [O] . Ye Li, Zhenping Qin, Hongxia Guo, -1

机译：低温合成具有可调节表面电荷的锐钛矿型TiO2纳米颗粒以增强光催化活性
7. Transport and spectroscopic properties of superconductor - ferromagnet - superconductor junctions of $La_{1.9}Sr_{0.1}CuO_4$ - $La_{0.67}Ca_{0.33}MnO_3$ - $La_{1.9}Sr_{0.1}CuO_4$ [O] . Koren, Gad, Kirzhner, Tal 2011

机译：超导体的传输和光谱特性 - 铁磁体 - $ La_ {1.9} sr_ {0.1} CuO_4 $的超导体结 - $ La_ {0.67} Ca_ {0.33} mnO_3 $ - $ La_ {1.9} sr_ {0.1} CuO_4 $

Low-temperature polymer precursor-based synthesis of nanocrystalline particles of lanthanum calcium manganese oxide (La_(0.67)Ca_(0.33)WnO_3) with enhanced ferromagnetic transition temperature

摘要

著录项

相似文献

相关主题

期刊订阅