M - manganite 中文 - EN166

manganite n.【礦物】水錳礦；【化學】亞錳酸鹽。

manganous
The discovery of giant magnetoresistance effect has attracted much attention to research of magnetic transport in inhomogeneous systems , which depends on spin of electrons . the magnetoresistance in such two inhomogeneous systems as magnetic granular alloys and doped pervoskite manganite fflms is usually considered due to spindependent scattering 巨磁阻效應的發現，導致了一個如何正確看待非均勻系統中磁輸運性質的問題，并使電子輸運狀況依賴于自旋內稟屬性的物理觀念逐漸形成。
This chapter deals with the influent physics properties and some spectacular phenomenon observed in perovskite manganites , including the structure , magnetic and electronic transport , phase diagram , charge / orbital ordering , and insulator - metal transition induced by applied magnetic field or photo radiation etc . this part is helpful to build up a background for the research on colossal magnetoresistance 包括晶體結構、電子結構、磁性質、輸運性質、電磁相圖、有序相，以及其他奇特的物理現象。通過本章，我們將了解到摻雜錳氧化物的基本物理性質，為進入該研究領域作好了準備。
Ca , sr , ba ) in the a sublattice , introduces mn4 + ions or holes into the system . it is generally considered that the concentration of holes is equal to the concentration of divalent cations because of the charge compensation by controlled valencies . a number of publications exist in the literature on the synthesis of manganite perovskites 在類鈣鈦礦型晶體結構中通過摻入二價堿土金屬(如ca ， sr ， ba )可以在系統中產生mn ~ ( 4 + )或氧空位，由價位補償的原理，理論上摻入的二價離子的濃度和氧空位的濃度相等。
In manganite perovskites , substitution of divalent ions ( alkaline earth metals viz . ca , sr , ba ) in the a sublattice , introduces mn4 + ions or holes into the system . it is generally considered that the concentration of holes is equal to the concentration of divalent cations because of the charge compensation by controlled valencies 在類鈣鈦礦型晶體結構中通過摻入二價堿土金屬(如ca ， sr ， ba )可以在系統中產生mn ~ ( 4 + )或氧空位，由價格補償的原理，理論上摻入的二價離子的濃度和氧空位的濃度相等。
Since the discovery of colossal magnetoresistance effect ( cmr ) in per - ovskite manganites , it has sparked considerable renewed interests in these long - known materials with an eye towards both an understanding of the cmr and related properties and potential applications in magnetic information store and low - field magnetic sensors 以鈣鈦礦結構氧化物為代表的巨磁電阻材料，由于它們所表現出來的超大磁電阻效應( colossalmagnetoresistance )在提高磁存儲密度及磁敏感探測元件上具有十分廣闊的應用前景，因而受到人們的廣泛關注。
In recent years , the colossal magneto - resistance effect in rare - earth manganite perovskites of the type lni . xaxmno3 ( where ln is rear - earth irons la2 + , nd2 + , p2 + ; a is alkaline earth iron ca2 + , sr2 + , ba2 + ) has attract considerable attention in scientific studies due to its potential application . however , the poor temperature dependence of mr and the low - temperature mr effect and the ideal mr only in high field severely limit their practical utility . in this work , we prepared manganite perovskite lai - xsrxmno3 and soft - magnetic ferrite materials fe2o3 and ( ni , zn ) fe2o4 by using sol - gel method separately 近些年來，人們發現在鈣鈦礦錳氧化物ln _ ( 1 - x ) axmno _ 3 ( ln為la ， nd ， pr等稀土金屬元素； a為ca ， sr ， ba等堿土金屬元素)中具有磁電阻( magnetoresistance )效應，由于它在磁記錄，磁傳感器方面具有廣泛的應用前景，同時也向傳統的磁記錄材料提出了挑戰，因而引起了物理學界的廣泛關注。
More recently , the perovskite manganite compounds , la1 - xsrxmno3 have been used as the cathode of the solid oxide fuel cell ( sofc ) because of their electro - ion conductivity properties . in manganite perovskites , substitution of divalent ions ( alkaline earth metals viz 近幾年來， la _ ( 1 - x ) sr _ xmno _ 3這類鈣鈦礦型結構的氧化物材料因為其具有混合電子-離子導電特性而被廣泛的應用于固體氧化物燃料電池陰極材料。
Taking the effect of big du . flers into account , we explain the volume - fraction dependence qualitatively by effective duster model . meanwhile , we enterpret phenomenonally the rnagnetoresistance dependence on ii 3 temperature in doped pervoskite manganite films 計入磁顆粒集團的影響，改進有效介質理論，采用有效集團模型，可以對巨磁阻濃度效應恰當地定性解釋。
The composition , technique and characters about the manganite based ntc thermistor materials were reviewed in this paper 摘要本文對含錳尖晶石系列熱敏電阻材料的組成、制備工藝和性能給予了評述。
The bilayer manganite film la2 - 2xsr1 + 2xmn207 ( x = 0 . 32 ) were successfully prepared by pulsed laser deposition ( pld ) method 我們采用脈沖激光濺射沉積( pld )方法來制備雙層薄膜。
The strain effect on physical properties of bilayer manganite thin films 雙層錳氧化物薄膜中的應力效應