| Title | Nonlinear transport of graphene in the quantum Hall regime |
| Authors | Tian, Shibing Wang, Pengjie Liu, Xin Zhu, Junbo Fu, Hailong Taniguchi, Takashi Watanabe, Kenji Chen, Jian-Hao Lin, Xi |
| Affiliation | Peking Univ, Int Ctr Quantum Mat, Beijing 100871, Peoples R China. Natl Inst Mat Sci, High Pressure Grp, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan. Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China. Peking Univ, Int Ctr Quantum Mat, Beijing 100871, Peoples R China. Chen, JH (reprint author), Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China. |
| Keywords | graphene quantum Hall effect quantum resistance standard RESISTANCE STANDARD SILICON-CARBIDE BREAKDOWN DEVICES FERMIONS CONTACT |
| Issue Date | 2017 |
| Publisher | 2D MATERIALS |
| Citation | 2D MATERIALS.2017,4(1). |
| Abstract | Wehave studied the breakdown of the integer quantum Hall (QH) effect with fully broken symmetry, in an ultra-high mobility graphene device sandwiched between two single crystal hexagonal boron nitride substrates. The evolution and stabilities of the QH states are studied quantitatively through the nonlinear transport with dc Hall voltage bias. The mechanism of the QH breakdown in graphene and the movement of the Fermi energy with the electrical Hall field are discussed. This is the first study in which the stabilities of fully symmetry broken QH states are probed all together. Our results raise the possibility that the nu = +/- 6 states might be a better target for the quantum resistance standard. |
| URI | http://hdl.handle.net/20.500.11897/475013 |
| ISSN | 2053-1583 |
| DOI | 10.1088/2053-1583/4/1/015003 |
| Indexed | SCI(E) |
| Appears in Collections: | 量子材料科学中心 |
