4 papers
Correlated Insulator Moiré Bolometer
L. Elesin, A. L. Shilov, M. Kravtsov +14
Light incident on an insulator is generally not expected to turn it into a metal without invoking intense ultrafast excitation that leads to transient structural transitions. Here…
Ultrafast intrinsic optical-to-electrical conversion dynamics in graphene photodetector
Katsumasa Yoshioka, Taro Wakamura, Masayuki Hashisaka +3
Optical-to-electrical (O-E) conversion in graphene is a central phenomenon for realizing anticipated ultrafast and low-power-consumption information technologies. However, revealin…
Two-dimensional atomic-scale ultrathin lateral heterostructures
Nanami Ichinose, Mina Maruyama, Takato Hotta +8
Ultrathin lateral heterostructures of monolayer MoS2 and WS2 have successfully been realized with the metal-organic chemical vapor deposition method. Atomic-resolution HAADF-STEM o…
Emergent Symmetry and Valley Chern Insulator in Twisted Double-Bilayer Graphene
Yimeng Wang, G. William Burg, Biao Lian +4
Theoretical calculations show that twisted double bilayer graphene (TDBG) under a transverse electric field develops a valley Chern number 2 at charge neutrality. Using thermodynam…