• 文献标题:   Flicker noise and magnetic resolution of graphene hall sensors at low frequency
  • 文献类型:   Article
  • 作  者:   XU HL, HUANG L, ZHANG ZY, CHEN BY, ZHONG H, PENG LM
  • 作者关键词:  
  • 出版物名称:   APPLIED PHYSICS LETTERS
  • ISSN:   0003-6951 EI 1077-3118
  • 通讯作者地址:   Peking Univ
  • 被引频次:   29
  • DOI:   10.1063/1.4821270
  • 出版年:   2013

▎ 摘  要

Hall elements fabricated on chemical vapor deposited graphene exhibited high current- and voltage-related sensitivities due to its low intrinsic carrier density and high mobility about 5000 cm(2)/V s. Electric noise of the Hall elements was measured at room temperature and found to be largely Flicker noise at low frequency which can be well described by Hooge's empirical relation with a low noise parameter of about 1.8 x 10(-4). The combination of high sensitivity and low noise in graphene Hall elements leads to a high room temperature magnetic resolution of about 5 x 10(-3) G/Hz(0.5) at 3 kHz. (C) 2013 AIP Publishing LLC.