【摘 要】
:
A cluster model is used to calculate electron energy-loss fine structures in crystal. The multiple-scattering self-consistent-field method is employed in the ca
【出 处】
:
Science in China,Ser.A
论文部分内容阅读
A cluster model is used to calculate electron energy-loss fine structures in crystal. The multiple-scattering self-consistent-field method is employed in the calculation. Our theoretical results of N near K-edge energy loss fine structures in hexagonal GaN crystal are in good agreement with the experimental spectra. Future possible experiments in energy-filtered transmission electron microscopy (EFTEM) are discussed and proposed because our theoretical work can provide clear assignments for transmitted electrons with different energy losses.
A multiple-scattering self-consistent-field method is employed in the calculation. Our theoretical results of N near K-edge energy loss fine structures in hexagonal GaN crystal are in good agreement with the experimental spectra. Future possible experiments in energy-filtered transmission electron microscopy (EFTEM) are discussed and proposed because our theoretical work can provide clear assignments for transmitted electrons with different energy losses.
其他文献
在农田水利建筑物配套中,各地因地制宜采用新技术,创造了一批技术先进、结构紧凑、造型美观、自动运转、安全实用、造价低廉的新型结构。为了大力进行技术革新,为建筑物创造
陕西省水电勘测设计院地质队修配组,自力更生,艰苦奋斗,破除迷信,解放思想,大搞技术革新、技术革命。在人员少,设备差,资料缺乏情况下,用蚂蚁啃骨头的精神,克服重重困难,试
该局系统各单位在批林批孔运动的推动下,推优群众运动取得了很大成绩。到目前为止,据该局报来的资料统计,已取得推优成果200项。其中仅供电公司就已取得推优成果138项,另外
《中华人民共和国水污染防治法》第九条规定: “国务院有关部门和地方各级人民政府在开发、利用和调节、调度水资源的时候,应统筹兼顾,维护江河的合理流量和湖泊、水库以及
熟练地掌握化学实验操作技能 ,是顺利进行化学实验 ,进而学好化学的必要条件。我认为培养和提高学生的化学实验操作技能 ,应坚持三个原则 :一是必须从学生的实际情况出发 ;二
A new resveratrol tetramer, sinicin A was isolated from the roots of Ampelopsis sinica, with four known tetramers: vitisin A, cis-vitisin B, ampelopsin H and ho
Prepandrix关键词:欧盟批准葛兰素史克制药公司(GSK)用于预防致命性H5N1流感病毒的疫苗Prepandrix通过欧盟委员会批准。此前不久,该药在今年
Prepandrix Keywords: EU appro
据了解,我国天然气消费水平,在一次能源消费结构中的比例为2.2%,与世界平均水平的24%相比,差距明显。在我国的天然气消费中,化肥生产是第一用气大户,但以气为原料生产的化肥只
The present investigation describes a novel method for preparing spherical chitosan particles based on crosslinking with epichlorohydrin. Certain amount of pre-
在舞台艺术中,舞台监督一直占据着重要的位置,并成为了提高舞台表演效果的组成内容之一。随着舞台艺术的不断发展与变化,舞台监督工作也受到了人们的广泛关注。因此,想要提高