Resonant tunneling and intrinsic bistability in twisted graphene structures

J. F. Rodriguez-Nieva; M. S. Dresselhaus; L. S. Levitov

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Resonant tunneling and intrinsic bistability in twisted graphene structures

机译：扭曲石墨烯结构中的共振隧穿和固有双稳态

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We predict that vertical transport in heterostructures formed by twisted graphene layers can exhibit a unique bistability mechanism. Intrinsically bistable Ⅰ-Ⅴ characteristics arise from resonant tunneling and interlayer charge coupling, enabling multiple stable states in the sequential tunneling regime. We consider a simple trilayer architecture, with the outer layers acting as the source and drain and the middle layer floating. Under bias, the middle layer can be either resonant or nonresonant with the source and drain layers. The bistability is controlled by geometric device parameters easily tunable in experiments. The nanoscale architecture can enable uniquely fast switching times.

机译：我们预测扭曲的石墨烯层形成的异质结构中的垂直传输可以表现出独特的双稳性机制。共振隧穿和层间电荷耦合产生固有的双稳态Ⅰ-Ⅴ特性，从而在顺序隧穿状态下实现多个稳定状态。我们考虑一个简单的三层体系结构，其中外层充当源极和漏极，而中间层则浮置。在偏压下，中间层可以与源极层和漏极层谐振或不谐振。双稳态由在实验中容易调整的几何设备参数控制。纳米级架构可以实现独特的快速切换时间。

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《Physical Review. B, Condensed Matter》 |2016年第8期|085412.1-085412.7|共7页
作者
J. F. Rodriguez-Nieva; M. S. Dresselhaus; L. S. Levitov;
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Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA;

Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA,Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA;

Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA;

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1. Twist-controlled resonant tunnelling in graphene/boron nitride/graphene heterostructures [J] . A. Mishchenko, J. S. Tu, Y. Cao, Nature nanotechnology . 2014,第10期

机译：石墨烯/氮化硼/石墨烯异质结构中的扭曲控制共振隧穿
2. Resonant tunnelling between the chiral Landau states of twisted graphene lattices [J] . Greenaway M. T., Vdovin E. E., Mishchenko A., Nature physics . 2015,第12期

机译：扭曲石墨烯晶格的手性朗道态之间的共振隧穿
3. Unraveling the Intrinsic and Robust Nature of van Hove Singularities in Twisted Bilayer Graphene by Scanning Tunneling Microscopy and Theoretical Analysis [J] . I. Brihuega, P. Mallet, H. Gonzalez-Herrero, Physical review letters . 2012,第19期

机译：扫描隧道显微镜和理论分析揭示扭曲双层石墨烯中van Hove奇异性的内在和鲁棒性
4. Wigner function simulation of intrinsic oscillations hysteresis and bistability in resonant tunneling structures [C] . Bryan A. Biegel, NASA Ames Research Ctr., Moffett Field, Conference on ultrafast phenomena in semiconductors . 1998

机译：共振隧穿结构固有振动滞后和双稳的Wigner函数模拟
5. Intrinsic bistability, self-consistency, and transport properties in novel resonant tunneling structures. [D] . Waung, Raymund Tsun-Tung. 1997

机译：新型共振隧穿结构的固有双稳性，自洽性和传输特性。
6. 3D printing of twisting and rotational bistable structures with tuning elements [O] . Hoon Yeub Jeong, Soo-Chan An, In Cheol Seo, -1

机译：带有调谐元件的扭曲和旋转双稳态结构的3D打印
7. Resonant tunneling and intrinsic bistability in twisted graphene structures [O] . Rodriguez Nieva Joaquin Francisco, Dresselhaus Mildred, Levitov Leonid 2016

机译：扭曲石墨烯结构中的共振隧穿和内在双稳态

Resonant tunneling and intrinsic bistability in twisted graphene structures

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