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相关论文: Excitons in moir\'{e} superlattices with disordere…

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Stacking monolayers of transition metal dichalcogenides into a heterostructure with a finite twist-angle gives rise to artificial moir\'e superlattices with a tunable periodicity. As a consequence, excitons experience a periodic potential,…

介观与纳米尺度物理 · 物理学 2020-12-30 Samuel Brem , Christopher Linderälv , Paul Erhart , Ermin Malic

We propose that excitons in moir\'e transition metal dichalcogenide bilayers offer a promising platform for investigating collective radiative properties. While some of these optical properties resemble those of cold atom arrays, moir\'e…

介观与纳米尺度物理 · 物理学 2025-10-21 Tsung-Sheng Huang , Yu-Xin Wang , Yan-Qi Wang , Darrick Chang , Mohammad Hafezi , Andrey Grankin

Fabricating van der Waals (vdW) bilayer heterostructures (BL-HS) by stacking the same or different two-dimensional (2D) layers, offers a unique physical system with rich electronic and optical properties. Twist-angle between component…

介观与纳米尺度物理 · 物理学 2020-12-17 Kha Tran , Junho Choi , Akshay Singh

Excitons, or bound electron-hole pairs, play a crucial role in the optical response of monolayer, 2H-phase transition-metal dichalcogenides (TMDs). They hold significant promise for the development of novel quantum opto-electronic devices…

材料科学 · 物理学 2024-03-29 Sebastian Yepez Rodriguez , Marshall A. Campbell , Jinyu Liu , Luis A. Jauregui

Rydberg excitons, the solid-state counterparts of Rydberg atoms, have sparked considerable interest in harnessing their quantum application potentials, whereas a major challenge is realizing their spatial confinement and manipulation.…

In bilayers of semiconducting transition metal dichalcogenides, the twist angle between layers can be used to introduce a highly regular periodic potential modulation on a length scale that is large compared to the unit cell. In such…

材料科学 · 物理学 2022-04-27 N. Götting , F. Lohof , C. Gies

Moir\'e superlattices provide a powerful tool to engineer novel quantum phenomena in two-dimensional (2D) heterostructures, where the interactions between the atomically thin layers qualitatively change the electronic band structure of the…

Moir\'e superlattices of semiconducting transition metal dichalcogenides (TMDCs) enable unprecedented spatial control of electron wavefunctions in an artificial lattice with periodicities more than ten times larger than that of atomic…

Rydberg excitons in two-dimensional semiconductors provide sensitive and non-destructive probes of physics in proximal sample layers that host correlated electronic states. In particular, electron or hole doping of the sample layer is…

介观与纳米尺度物理 · 物理学 2025-12-09 Arthur Christianen , Anna M. Seiler , Alperen Tüğen , Ataç İmamoğlu

Charge separated interlayer excitons in transition metal dichalcogenide (TMDC) heterobilayers are being explored for moir\'e exciton lattices and exciton condensates. The presence of permanent dipole moments and the poorly screened Coulomb…

介观与纳米尺度物理 · 物理学 2021-03-17 Jue Wang , Qianhui Shi , En-Min Shih , Lin Zhou , Wenjing Wu , Yusong Bai , Daniel A. Rhodes , Katayun Barmak , James Hone , Cory R. Dean , X. -Y. Zhu

Transitions metal dichalcogenides (TMDs) are direct semiconductors in the atomic monolayer (ML) limit with fascinating optical and spin-valley properties. The strong optical absorption of up to 20 % for a single ML is governed by excitons,…

介观与纳米尺度物理 · 物理学 2018-09-26 B. Han , C. Robert , E. Courtade , M. Manca , S. Shree , T. Amand , P. Renucci , T. Taniguchi , K. Watanabe , X. Marie , L. E. Golub , M. M. Glazov , B. Urbaszek

Excitons are two-particle correlated bound states that are formed due to Coulomb interaction between single-particle holes and electrons. In the solid-state, cooperative interactions with surrounding quasiparticles can strongly tailor the…

The moir\'e pattern induced by lattice mismatch in transition-metal dichalcogenide heterobilayers causes the formation of flat bands, where interactions dominate the kinetic energy. At fractional fillings of the flat valence band, the…

强关联电子 · 物理学 2023-12-07 Yuting Tan , Pak Ki Henry Tsang , Vladimir Dobrosavljević , Louk Rademaker

Bose-Fermi mixtures naturally appear in various physical systems. In semiconductor heterostructures, such mixtures can be realized, with bosons as excitons and fermions as dopant charges. However, the complexity of these hybrid systems…

Moir\'e superlattices are excellent platforms to realize strongly correlated quantum phenomena, such as Mott insulation and superconductivity. In particular, recent research has revealed stripe phases and generalized Wigner crystals at…

介观与纳米尺度物理 · 物理学 2021-07-20 Erfu Liu , Takashi Taniguchi , Kenji Watanabe , Nathaniel M. Gabor , Yong-Tao Cui , Chun Hung Lui

Twisted transition metal dichalcogenides (TMDs) present an intriguing platform for exploring excitons and their transport properties. By introducing a twist angle, a moir\'e superlattice forms, providing a spatially dependent exciton energy…

介观与纳米尺度物理 · 物理学 2024-01-17 Willy Knorr , Samuel Brem , Giuseppe Meneghini , Ermin Malic

Moir\'e heterostructures consisting of transition metal dichalcogenide (TMD) hetero- and homobilayers have emerged as a promising material platform to study correlated electronic states. Optical signatures of strong correlations in the form…

We report experimental and theoretical studies of MoTe$_2$-MoSe$_2$ heterobilayers with rigid moir\'e superlattices controlled by the twist angle. Using an effective continuum model that combines resonant interlayer electron tunneling with…

Moir\'e superlattices formed by transition metal dichalcogenide (TMD) heterobilayers provide a versatile platform for studying strongly correlated electronic, excitonic, and topological phenomena in solids. In particular, angle-aligned…

Moir\'e superlattices in twisted van der Waals materials constitute a promising platform for engineering electronic and optical properties. However, a major obstacle to fully understanding these systems and harnessing their potential is the…