查询词典 manganite

More recently, the perovskite manganite compounds, La1-xSrxMnO3 have been used as the cathode of the solid oxide fuel cell because of their electro-ion conductivity properties.

近几年来，La_(1-x)Sr_xMnO_3这类钙钛矿型结构的氧化物材料因为其具有混合电子-离子导电特性而被广泛的应用于固体氧化物燃料电池阴极材料。

This dissertation consists of five chapters. The arrangement of the chapters and the main contents in each chapter are presented as follows:In chapter 1, we make a brief introduction to all kinds of magnetoresistance effects; the basic properties of the perovskite-type manganese oxides, including research history, crystal structure, electronic structure, magnetic structure, and the electronic and magnetic phase diagrams; the strain relaxation of manganite thin films; and the research progress in application.

各章的主要内容分别概括如下：第一章简单介绍了各种磁电阻效应；钙钛矿锰氧化物的基本性质，包括研究历史、晶体结构、电子结构、磁结构和电磁相图；锰氧化物薄膜中应力弛豫；锰氧化物在应用方面的研究进展。

Some methods, such as hydrothermal method, sol-gel method and pulse laser deposition method, have been developed to prepare manganite nanomaterials. Studies on the nanoscaled manganites revealed that they exhibit a number of novel physical properties such as low field high magnetoresistance, superparamagnetism, and large coercivity and more promising applications as compared to the corresponding bulk compounds.

发展了低温水热法、溶胶凝胶法、脉冲激光沉积模板法等方法制备锰氧化物纳米材料，研究发现纳米级的锰氧化物表现出了一些不同于块材的奇特的物理性质：如低场高磁阻效应、超顺磁性、大矫顽力、低饱和磁化强度及表面自旋玻璃等。

M. Bratkovsky proposed a theory of current carrier density collapse . In this thesis, we studied the effect of Ti〓 doping in Mn-site on the manganite 〓. With the results, we compared the reasonableness of the DE and CCDC theories.

目前，广泛地为人们接受的是Zener提出的双交换相互作用理论(Double Exchange Interaction，DE)；另一种理论是Alexandrov和Bratkovsky提出的电流载流子密度坍塌(Current Carrier Density Collapse--CCDC)理论。

Among the manganite oxides, Sr-doped LaMnO_3 have been a focus of intensive studies since the discovery of relatively higher Curie temperature and CMR.

在钙钛矿锰氧化物庞磁阻材料中，Sr掺杂的锰酸镧(LaMnO_3)相较于其他材料具有较高的居里温度及相对较大的庞磁电阻特性，其在高密度读出磁头方面潜在的巨大市场更是受到了格外的重视。

Quantitative analysis of the EXAFS spectra showed that, in a 0 1mol/L NaNO 3 solution of pH 7 5, Zn was adsorbed onto the solid surface by sharing the oxygen atom in the hydrous Zn 2+ ions and in the structural unit MnO 6 on the manganite surface.

结果表明，Zn 水锰矿体系中(pH 7 5 ，0 1mol/LNaNO3 介质，2 5℃)，Zn2 +主要是通过共用水合Zn2 +的O原子及水锰矿表面上的O原子形成Zn—O键，从而结合到水锰矿固体表面上的。

The x-ray photoelectron spectroscopy of La-Pr-Mn-O reveals that the valence state of Pr include Pr〓, which indicates that the La-Pr-Mn-0 manganite is another new electron-doped CMR compound.

XPS谱研究表明：La-Pr-Mn-O中有pr〓存在，而且这种材料几乎在整个掺杂范围都是单相。

Quantitative analysis on the EXAFS spectra showed that Zn was adsorbed onto the solid surface in form of octahedral hydrated Zn ions, which were linked to the octahedral Mn06 of manganite by sharing oxygen atoms, with an average bond length R(subscript Zn-O)=(2.01±0.01)×10^(-10) m.

EXAFS结果表明，Zn主要是通过共用水合Zn离子的O原子及水锰矿表面上的O原子形成Zn-0键，从而结合到水锰矿固体表面上，其平均Zn-O原子间距为(2.01±0.01)×10^(-10)m。

Keywords perovskite manganite;pulsed laser deposition;CMR thin film;ANSYS software;heat/mechanics effect;plasma transport;dynamics Monte Carlo;the simulation of thin film growth

钙钛矿锰氧化物；脉冲激光沉积； CMR薄膜； ANSYS软件；热/力学效应；等离子体的输运；动力学蒙特卡洛方法；薄膜生长模拟

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失