水热法合成Zn_(1-x)Mn_xO稀磁半导体(英文)  

Hydrothermal Synthesis of Diluted Magnetic Zn_(1-x)Mn_xO Semiconductor

作　　者：韦志仁[1] 刘超[1] 李军[1] 葛世艳[1] 张华伟[1] 林琳[1] 郑一博[1] 窦军红 

机构地区：[1]河北大学物理科学与技术学院,保定071002

出　　处：《人工晶体学报》2006年第1期95-98,103,共5页Journal of Synthetic Crystals

基　　金：ProjectsupportedbyNaturalScienceFoundationofChina(No.50472037)andHebeiProvinceofChina(E2004000117,F2004000130)andtheScienceandTechnologyResearchProgramandBureauofScienceandTechnologyofHebeiProvince(No.2002158)

摘　　要：本文采用水热法在430℃，以3mol％·L^-1 KOH作矿化剂，填充度为35％，反应时间24h，合成了Zn1-xMnxO稀磁半导体晶体。所合成晶体具有ZnO纤锌矿结构，晶面显露正极面{0001}、负极面{0001}、菱面{1011}及负菱面{1011}晶体高度为5-30μm，径高比约为2：1。X荧光能谱（EDS）显示Mn原子百分浓度为2．6％（x=0.026）。晶体呈现低温铁磁性，居里温度50K。Diluted magnetic semiconductor Zn1-x, Mn, O crystals were synthesized at 430℃ for 24h by hydrothermal method. 3mol%·L^-1 KOH was used as the mineralizer, and the fill factor is 35%. The obtained crystals show a ZnO wurtzite structure, with positive polar faces {0001} , negative polar faces {0001}, p faces {1011} and -p faces {1011} exposed. The height of the crystal is 5-30μm and radiusheight ratio is 2 ： 1. Mn atom concentration of 2.6% （x = 0. 026） was determined using X-ray energy dispersive spectroscopy （EDS）. The crystals show low-temperature ferromagnetism with Curie temnerature of 50K.

关 键 词：水热合成 氧化锌 稀磁半导体 

分 类 号：O782[理学—晶体学]