Results 1 to 10 of about 24,179 (154)

Heavy quasiparticles and cascades without symmetry breaking in twisted bilayer graphene [PDF]

Nature Communications, 2023
Among the variety of correlated states exhibited by twisted bilayer graphene, cascades in the spectroscopic properties and in the electronic compressibility occur over larger ranges of energy, twist angle and temperature compared to other effects.
Anushree Datta, M. J. Calderón, A. Camjayi, E. Bascones   +3 more
doaj   +4 more sources

Waveguide-integrated twisted bilayer graphene photodetectors [PDF]

Nature Communications
Graphene photodetectors have exhibited high bandwidth and capability of being integrated with silicon photonics (SiPh), holding promise for future optical communication devices.
Qinci Wu, Jun Qian, Yuechen Wang, Luwen Xing, Ziyi Wei, Xin Gao, Yurui Li, Zhongfan Liu, Hongtao Liu, Haowen Shu, Jianbo Yin, Xingjun Wang, Hailin Peng   +12 more
doaj   +3 more sources

Symmetry-broken Josephson junctions and superconducting diodes in magic-angle twisted bilayer graphene. [PDF]

Nat Commun, 2023
Correlated electronic states in moiré matter are of great fundamental and technological interest. Here, the authors demonstrate a Josephson junction in magic-angle twisted bilayer graphene with a correlated insulator weak link, showing magnetism and ...
Díez-Mérida J, Díez-Carlón A, Yang SY, Xie YM, Gao XJ, Senior J, Watanabe K, Taniguchi T, Lu X, Higginbotham AP, Law KT, Efetov DK.   +11 more
europepmc   +3 more sources

Strong electron-phonon coupling in magic-angle twisted bilayer graphene. [PDF]

Nature, 2023
The unusual properties of superconductivity in magic-angle twisted bilayer graphene (MATBG) have sparked considerable research interest1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12–13.
Chen C, Nuckolls KP, Ding S, Miao W, Wong D, Oh M, Lee RL, He S, Peng C, Pei D, Li Y, Hao C, Yan H, Xiao H, Gao H, Li Q, Zhang S, Liu J, He L, Watanabe K, Taniguchi T, Jozwiak C, Bostwick A, Rotenberg E, Li C, Han X, Pan D, Liu Z, Dai X, Liu C, Bernevig BA, Wang Y, Yazdani A, Chen Y.   +33 more
europepmc   +2 more sources

Ultrasensitive optoelectronic biosensor arrays based on twisted bilayer graphene superlattice. [PDF]

Natl Sci Rev
Recent advances in twistronics have revealed tunable optoelectronic properties in twisted bilayer graphene (tBLG), including angle-dependent dielectric responses and enhanced light absorption due to van Hove singularity (VHS).
Du B, Tian X, Chen Z, Ge Y, Chen C, Gao H, Liu Z, Tung J, Fixler D, Wei S, Chen S, Zhang H.   +11 more
europepmc   +2 more sources

Quantum twisting microscopy of phonons in twisted bilayer graphene. [PDF]

Nature
The coupling between electrons and phonons is one of the fundamental interactions in solids, underpinning a wide range of phenomena, such as resistivity, heat conductivity and superconductivity.
Birkbeck J, Xiao J, Inbar A, Taniguchi T, Watanabe K, Berg E, Glazman L, Guinea F, von Oppen F, Ilani S.   +9 more
europepmc   +3 more sources

Anti-Symmetric Electromagnetic Interactions’ Response in Electron Circular Dichroism and Chiral Origin of Periodic, Complementary Twisted Angle in Twisted Bilayer Graphene [PDF]

Molecules, 2022
Many novel physical properties of twisted bilayer graphene have been discovered and studied successively, but the physical mechanism of the chiral modulation of BLG by a twisted angle lacks theoretical research.
Guoqiang Dai, Xiangtao Chen, Ying Jin, Jingang Wang   +3 more
doaj   +2 more sources

Angle-tuned Gross-Neveu quantum criticality in twisted bilayer graphene. [PDF]

Nat Commun
The quantum many-body states in twisted bilayer graphene at magic angle have been well understood both experimentally and theoretically. However, the phase diagram and excitations versus twist angle and permittivity are still largely unknown. Here, via a
Huang C, Parthenios N, Ulybyshev M, Zhang X, Assaad FF, Classen L, Meng ZY.   +6 more
europepmc   +2 more sources

Strain Engineering of Twisted Bilayer Graphene: The Rise of Strain-Twistronics. [PDF]

Small
The layer‐by‐layer stacked van der Waals structures (termed vdW hetero/homostructures) offer a new paradigm for materials design—their physical properties can be tuned by the vertical stacking sequence as well as by adding a mechanical twist, stretch ...
Hou Y, Zhou J, Xue M, Yu M, Han Y, Zhang Z, Lu Y.   +6 more
europepmc   +2 more sources

Grain Boundary Guided Folding of Graphene for Twisted Bilayer Graphene [PDF]

Nanomaterials
Bilayer graphene exhibits intriguing physical and mechanical properties that are suitable for advanced electronic device applications. By introducing a new degree of freedom through interlayer twisting, exotic phenomena such as superconductivity can ...
Feiru Feng, Kun Zhou, Kang Zhang, Liya Wang, Ruijie Wang, Jun Xia, Chun Tang   +6 more
doaj   +2 more sources