发光学报2013，Vol.34Issue(1)：45-48,4.DOI:10.3788/fgxb20133401.0045
室温下石墨烯的霍尔效应实验研究
Experimental Research on Hall Effect of Graphene at Room-temperature
摘要
Abstract
The grapheme samples were deposited on glass substrates by chemical vapor deposition (CVD). Both the length and width of graphene samples were 1. 23 cm, and the thickness was 3 atomic layer thickness setting scales. The Hall effects at room temperature of the samples were studied. There was good ohmic contact between the sample and the electrode. By using van der Pauw method, the Hall voltage of the samples were measured under the magnetic field strength 0. 353 T and different electric currents. The calculating results show that the graphene Hall coefficient RH is 7.00 x 10-7 m3/C, the carrier concentration n is 10.52 x 1024/m3 and the Hall element production sensitivity KH is 6. 87 x 102 m2/C.关键词
石墨烯/测量/霍尔效应Key words
graphene/ measurement/ Hall effect分类
数理科学引用本文复制引用
安楠,白浪,李小俊,李渭龙,任兆玉..室温下石墨烯的霍尔效应实验研究[J].发光学报,2013,34(1):45-48,4.基金项目
国家自然科学基金(10974152,611770959,61275105) （10974152,611770959,61275105）
陕西省教育厅科研计划(08JZ68,2010JS111,12JK0519)资助项目 （08JZ68,2010JS111,12JK0519）
