cmr field 中文意思是什麼
cmr field
解釋
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The discovery of the colossal magnetoresistance ( cmr ) in hole - doped perovskite manganites ra1 - xmxmno3 ( ra is a trivalent rare - earth ion and m is a metal ion ) has attracted much attention since 1989 due to not only its technological applications in magnetic recording and sensor, but also the effect of the strong correlation concerning metal - insulator transition in the field of basic research. since then, several physics models have been suggested to explain the mechanism of cmr. however, the exact mechanism of cmr remains to be done
自1989年在摻雜鈣鈦礦型錳氧化物ra _ （ 1 - x ） m _ xmno _ 3 （其中m為金屬離子， ra為三價稀土離子）中發現龐磁電阻（ cmr ）以來由於其在磁記錄、磁傳感器等方面潛在的應用前景，以及金屬?絕緣體相變等所涉及的強關聯效應，使該類化合物吸引了物理學界的廣泛注意。 -
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，由於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。 -
Due to great advantage of the excimer laser in photoelectron material, photoelectron technology research, so in this thesis, a xecl excimer laser is designed in order to solve some problem in semiconductor film, cmr film, quartz film and other kind of film application, optical etching field, interaction between laser and material, material plasma study. the parameters of the excimer laser is e also measured and analyzed
因此本文以氣相沉積、外延生長、巨磁薄膜、金剛石及其它薄膜制備及后續的光刻，激光與物質的相互作用，等離子體研究為目的，研製獲得了激光脈寬18ns ，單脈沖能量150mj ，矩形光斑大小2cm 1cm ，束散角3mrad ，最高重復頻率5hz的xecl準分子激光器。 -
On one hand, in grain regions of films, the strong inter - duster interaction, mentioned as mean field, leads to the colossal magnetoresistance effect ( cmr )
與此同時，薄膜的拓撲形態分為顆粒區域和顆粒邊界區域。在顆粒區域內，小聚集體之間具有強關聯耦合作用，是這種非均勻體系龐磁阻效應的成因。 -
Beside the cmr effect, these materials also exhibit intriguing physical properties such as insulator - metal and / or structure transition induced by applied magnetic - field or photo radiation, charge ordering, orbital ordering, and phase separation etc. the full understanding of these properties will definitely stimulate the progress of condensed matter physics
同時，這類材料還表現出諸如磁場或光誘導的絕緣體-金屬轉變，電荷有序、軌道有序、以及相分離等十分豐富的物理內容，涉及到凝聚態物理的許多基本問題，一旦解決了這些問題的微觀物理機制，必將對凝聚態物理的發展和完善起到巨大的推動作用。
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