Half metallic properties of Sr2CuOsO6

The half metallic properties of the recent synthesized Sr2CuOsO6 were predicted by using the density functional theory. The effects of electron correlation and spin-orbit coupling (SOC) were studied. The calculations show that without considering SOC effect, Sr2CuOsO6 is half metallic and ferrimagnetic. By including both electron correlation and spin-orbit coupling, the total spin magnetic moment is 0.89 mu(B), total orbital moment 0.43 mu(B) in opposite direction, making the net magnetic moment 0.46 mu(B). SOC ruins the half metallic character. Crown Copyright (C) 2009 Published by Elsevier B. V. All rights reserved.

基于OMAP的废墟搜救机器人监控终端

针对废墟搜救机器人的实际需要和当前监控终端的不足,设计开发了一种新的监控终端。这种监控终端基于OMAP架构,包含了人机界面、遥控、无线通讯、数据处理等功能,实现了对机器人本体的无线操控,并实现了与指挥中心的远程无线连接。由于在功耗与性能之间取得了平衡,这种监控终端减小了体积,提高了便携性。