典型文献
Observation of quadratic magnetoresistance in twisted double bilayer graphene
文献摘要:
Magnetoresistance(MR)provides rich information about Fermi surface,carrier scatterings,and exotic phases for a given electronic system.Here,we report a study of the magnetoresistance for the metallic states in twisted double bilayer graphene(TDBG).We observe quadratic magnetoresistance in both Moiré valence band(VB)and Moiré conduction band(CB).The scaling analysis shows validity of Kohler's rule in the Moiré valence band.On the other hand,the quadratic magnetoresistance appears near the halo structure in the Moiré conduction band,and it violates Kohler's rule,demonstrating the MR scaling related to band structure in TDBG.We also propose an alternative scaling near the halo structure.Further analysis implies that the observed quadratic magnetoresistance and alternative scaling in conduction band are related to the halo boundary.Our results may inspire investigation on MR in twisted 2D materials and provide new knowledge for MR study in condensed matter physics.
文献关键词:
中图分类号:
作者姓名:
Yanbang Chu;Le Liu;Yiru Ji;Jinpeng Tian;Fanfan Wu;Jian Tang;Yalong Yuan;Yanchong Zhao;Xiaozhou Zan;Rong Yang;Kenji Watanabe;Takashi Taniguchi;Dongxia Shi;Wei Yang;Guangyu Zhang
作者机构:
Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100190,China;Songshan Lake Materials Laboratory,Dongguan 523808,China;Research Center for Functional Materials,National Institute for Materials Science,1-1 Namiki,Tsukuba 305-0044,Japan;International Center for Materials Nanoarchitectonics,National Institute for Materials Science,1-1 Namiki,Tsukuba 305-0044,Japan
文献出处:
引用格式:
[1]Yanbang Chu;Le Liu;Yiru Ji;Jinpeng Tian;Fanfan Wu;Jian Tang;Yalong Yuan;Yanchong Zhao;Xiaozhou Zan;Rong Yang;Kenji Watanabe;Takashi Taniguchi;Dongxia Shi;Wei Yang;Guangyu Zhang-.Observation of quadratic magnetoresistance in twisted double bilayer graphene)[J].中国物理B(英文版),2022(10):306-310
A类:
TDBG
B类:
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AB值:
0.513108
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