Brightening dark excitons and trions in systems with a Mexican-hat energy dispersion: example of InSe [0.03%]
具有墨西哥帽型能量色散系统的暗激子和三重态的增益：InSe为例
Lewis J Burke,Mark T Greenaway,Joseph J Betouras
Lewis J Burke
We investigate the properties of momentum-dark excitons and trions formed in two-dimensional (2D) materials that exhibit an inverted Mexican hat-shaped-dispersion relation, taking as an example monolayer InSe. We employ variational techniqu...
Ab initio simulation of spin-charge qubits based on bilayer graphene-WSe2 quantum dots [0.03%]
基于双层石墨烯-二硒化钨量子点的自洽 спин-电荷量子比特的从头算模拟
Huaiyu Ge,Peter Koopmann,Filip Mrcarica et al.
Huaiyu Ge et al.
We propose a spin-charge qubit based on a bilayer graphene and WSe2 van der Waals heterostructure that together form a quantum dot and demonstrate its functionality from first-principles simulations. Electron and hole confinement as well as...
Oriented 2D Ruddlesden-Popper metal halides by pulsed laser deposition [0.03%]
脉冲激光沉积的二维Ruddlesden-Popper金属卤化物
Junia S Solomon,Nada Mrkyvkova,Vojtĕch Kliner et al.
Junia S Solomon et al.
Two-dimensional (2D) Ruddlesden-Popper (RP) metal halides present unique and tunable properties. However, direct and oriented synthesis is challenging due to low formation energies that lead to rapid, uncontrolled growth during solution-bas...
Elucidating the role of stacking faults in TlGaSe2 on its thermoelectric properties [0.03%]
揭秘TlGaSe2的孪晶界层作用及其对热电性质的影响
Tigran Simonian,Ahin Roy,Akash Bajaj et al.
Tigran Simonian et al.
Thermoelectric materials are of great interest for heat energy harvesting applications. One such promising material is TlGaSe2, a 2D-layered, p-type semiconducting ternary chalcogenide. Recent reports show it can be processed as a thin film...
Layer-by-layer assembly yields thin graphene films with near theoretical conductivity [0.03%]
层层组装法得到接近理论电导率的超薄石墨烯薄膜
Oran Cassidy,Kevin Synnatschke,Jose M Munuera et al.
Oran Cassidy et al.
Thin films fabricated from solution-processed graphene nanosheets are of considerable technological interest for a wide variety of applications, such as transparent conductors, supercapacitors, and memristors. However, very thin printed fil...
Jan N Kirchhof,Kirill I Bolotin
Jan N Kirchhof
We present a tunable phononic crystal which can be switched from a mechanically insulating to a mechanically conductive (transmissive) state. Specifically, in our simulations for a phononic lattice under biaxial tension (σ xx = σ yy = 0.0...
Tailoring polarization in WSe2 quantum emitters through deterministic strain engineering [0.03%]
通过确定性应变工程在WSe2量子发射器中调整极化率
Athanasios Paralikis,Claudia Piccinini,Abdulmalik A Madigawa et al.
Athanasios Paralikis et al.
Quantum emitters in transition metal dichalcogenides (TMDs) have recently emerged as a promising platform for generating single photons for optical quantum information processing. In this work, we present an approach for deterministically c...
Electronic excitations and spin interactions in chromium trihalides from embedded many-body wavefunctions [0.03%]
基于嵌入多体波函数的铬三卤化物中的电子激发和自旋相互作用
Ravi Yadav,Lei Xu,Michele Pizzochero et al.
Ravi Yadav et al.
Although chromium trihalides are widely regarded as a promising class of two-dimensional magnets for next-generation devices, an accurate description of their electronic structure and magnetic interactions has proven challenging to achieve....
Kenan Elibol,Toma Susi,Clemens Mangler et al.
Kenan Elibol et al.
The presence of metal atoms at the edges of graphene nanoribbons (GNRs) opens new possibilities toward tailoring their physical properties. We present here formation and high-resolution characterization of indium (In) chains on the edges of...
Exfoliation procedure-dependent optical properties of solution deposited MoS2 films [0.03%]
溶液法制备的MoS2薄膜的光学性能及其剥离工艺之间的关系
Robert T Busch,Lirong Sun,Drake Austin et al.
Robert T Busch et al.
The development of high-precision large-area optical coatings and devices comprising low-dimensional materials hinges on scalable solution-based manufacturability with control over exfoliation procedure-dependent effects. As such, it is cri...