Persistent hysteresis in graphene-mica van der Waals heterostructures
Persistent hysteresis in graphene-mica van der Waals heterostructures
复制标题
石墨烯-云母范德华异质结构中的持续磁滞
DOI:
10.1088/0957-4484/26/1/015202
复制
发表时间:
2015
期刊:
影响因子:
3.5
通讯作者:
R. Danneau
中科院分区:
文献类型:
--
作者:
J. Mohrmann;K. Watanabe;T. Taniguchi;R. Danneau
We report the study of electronic transport in graphene-mica van der Waals heterostructures. We have designed various graphene field-effect devices in which mica is utilized as a substrate and/or gate dielectric. When mica is used as a gate dielectric we observe a very strong positive gate voltage hysteresis of the resistance, which persists in samples that were prepared in a controlled atmosphere down to even millikelvin temperatures. In a double-gated mica-graphene-hBN van der Waals heterostructure, we found that while a strong hysteresis occurred when mica was used as a substrate/gate dielectric, the same graphene sheet on mica substrate no longer showed hysteresis when the charge carrier density was tuned through a second gate with the hBN dielectric. While this hysteretic behavior could be useful for memory devices, our findings confirm that the environment during sample preparation has to be controlled strictly.
登录
查看更多内容
DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
J. R. Weeks
通讯作者:
J. R. Weeks
影响因子:
38.3
作者:
Dean, C. R.;Young, A. F.;Hone, J.
通讯作者:
Hone, J.
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
M. Meyer
通讯作者:
M. Meyer
影响因子:
64.8
作者:
C. R. Dean;K.Watanabe;T.Taniguchi;P.Kim;et.al.,
通讯作者:
et.al.,
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
Xiaofeng Lu;L. Majewski;A. Song
通讯作者:
A. Song