Tootfinder

From Wye-Delta to Cross-Square Recursion Configurations in Graphene-Based Quantum Hall Arrays
Ngoc Thanh Mai Tran, Marta Musso, Dominick S. Scaletta, Wei-Chen Lin, Valery Ortiz Jimenez, Dean G. Jarrett, Massimo Ortolano, Curt A. Richter, Chi-Te Liang, David B. Newell, Albert F. Rigosi
https://arxiv.org/abs/2508.03347

From Wye-Delta to Cross-Square Recursion Configurations in Graphene-Based Quantum Hall Arrays
In electrical metrology, the quantum Hall effect is accessed at the Landau level filling factor ν = 2 plateau to define and disseminate the unit of electrical resistance (ohm). The robustness of the plateau is only exhibited at this Landau level filling factor and thus places a constraint on the quantized resistances that are accessible when constructing quantized Hall array resistance standards (QHARS) using epitaxial graphene on SiC. To overcome devices constrained by using Hall elements in …

A Concise Review of Recently Synthesized 2D Carbon Allotropes: Amorphous Carbon, Graphynes, Biphenylene and Fullerene Networks
Ricardo Paupitz, Alexandre F. Fonseca, Mizraim Bessa, Guilherme S. L. Fabris, William F. da Cunha, Leonardo D. Machado, Marcelo L. Pereira Junior, Luiz A. Ribeiro Junior Douglas S. Galv\~ao
https://arxiv.org/abs/25…

A Concise Review of Recently Synthesized 2D Carbon Allotropes: Amorphous Carbon, Graphynes, Biphenylene and Fullerene Networks
Two-dimensional (2D) carbon allotropes have received considerable attention due to their unique properties and potential applications in several fields, including electronics, catalysis, energy storage, and sensing. Following the experimental realization of graphene, numerous other 2D carbon structures have been proposed and, in some cases, successfully synthesized. This work presents a concise review of the recently experimentally realized 2D carbon allotropes, including graphynes, biphenylene…

RG III makes feelings known on Commanders sidelining Jayden Daniels after knee injury ahead of Week 3 clash vs. Raiders https://www.sportskeeda.com/nfl/news-rg-iii-makes-feelings-known-commanders-sideli…

Wafer-scale Programmed Assembly of One-atom-thick Crystals
Seong-Jun Yang, Ju-Hyun Jung, Eunsook Lee, Edmund Han, Min-Yeong Choi, Daesung Jung, Shinyoung Choi, Jun-Ho Park, Dongseok Oh, Siwoo Noh, Ki-Jeong Kim, Pinshane Y. Huang, Chan-Cuk Hwang, Cheol-Joo Kim
https://arxiv.org/abs/2507.22677

Wafer-scale Programmed Assembly of One-atom-thick Crystals
Crystalline films offer various physical properties based on the modulation of their thicknesses and atomic structures. The layer-by-layer assembly of atomically thin crystals provides powerful means to arbitrarily design films at the atomic-level, which are unattainable with existing growth technologies. However, atomically-clean assembly of the materials with high scalability and reproducibility remains challenging. We report programmed crystal assembly (PCA) of graphene and monolayer hexagon…

Obtaining the Spectral Function of Moir\'e Graphene Heavy-Fermions Using Iterative Perturbation Theory
Dumitru C\u{a}lug\u{a}ru, Haoyu Hu, Lorenzo Crippa, Gautam Rai, Nicolas Regnault, Tim O. Wehling, Roser Valent\'i, Giorgio Sangiovanni, B. Andrei Bernevig
https://arxiv.org/abs/2509.18256 …

Obtaining the Spectral Function of Moiré Graphene Heavy-Fermions Using Iterative Perturbation Theory
The spectral functions of twisted bilayer graphene (TBG) in the absence of strain have recently been investigated in both the symmetric and symmetry-broken phases using dynamical mean-field theory (DMFT). The theoretically predicted Mott-Hubbard bands and gapless semimetallic state at half-filling have since been confirmed experimentally. Here, we develop several second-order perturbation theory approaches to the topological heavy-fermion (THF) model of TBG and twisted symmetric trilayer graphe…

Cascade of Even-Denominator Fractional Quantum Hall States in Mixed-Stacked Multilayer Graphene
Yating Sha, Kai Liu, Chenxin Jiang, Dan Ye, Shuhan Liu, Zhongxun Guo, Jingjing Gao, Ming Tian, Neng Wan, Kenji Watanabe, Takashi Taniguchi, Bingbing Tong, Guangtong Liu, Li Lu, Yuanbo Zhang, Zhiwen Shi, Zixiang Hu, Guorui Chen
https://arxiv.org/…

Cascade of Even-Denominator Fractional Quantum Hall States in Mixed-Stacked Multilayer Graphene
The fractional quantum Hall effect (FQHE), particularly at half-filling of Landau levels, provides a unique window into topological phases hosting non-Abelian excitations. However, experimental platforms simultaneously offering large energy gaps, delicate tunability, and robust non-Abelian signatures remain scarce. Here, we report the observation of a cascade of even-denominator FQH states at filling factors $ν$ = ${-5/2}$, ${-7/2}$, ${-9/2}$, ${-11/2}$, and ${-13/2}$, alongside numerous odd-d…

Beyond Seamless: Unexpected Defective Merging in Single-Orientation Graphene
Zhien Wang, Jiangtao Wang, Diego Exposito, Andrey Krayev, Shih-Ming He, Xudong Zheng, Zachariah Hennighausen, Ivan Brihuega, Se-Young Jeong, Jing Kong
https://arxiv.org/abs/2509.21908

Beyond Seamless: Unexpected Defective Merging in Single-Orientation Graphene
Single-orientation stitching of graphene has emerged as the predominant method for growth of large-area, high-quality graphene films. Particularly noteworthy is graphene grown on single-crystalline Cu(111)/sapphire substrates, which exhibits exceptionally planar oriented stitching due to the atomically smooth substrate, facilitating the formation of continuous, high-quality graphene monolayer. These single-orientation stitches have conventionally been regarded as seamless with negligible defect…

All-Dry Transfer of Graphene Film by Van der Waals Interactions
Seong-Jun Yang, Shinyoung Choi, Francis Okello Odongo Ngome, Ki-Jeong Kim, Si-Young Choi, Cheol-Joo Kim
https://arxiv.org/abs/2507.18965 …

All-Dry Transfer of Graphene Film by Van der Waals Interactions
We report a method that uses van der Waals interactions to transfer continuous, high-quality graphene films from Ge(110) to a different substrate held by hexagonal boron nitride carriers in a clean, dry environment. The transferred films are uniform and continuous with low defect density and few charge puddles. The transfer is effective because of the weak interfacial adhesion energy between graphene and Ge. Based on the minimum strain energy required for the isolation of film, the upper limit …

A General Many-Body Perturbation Framework for Moir\'e Systems: Application to Rhombohedral Pentalayer Graphene/hBN Heterostructures
Xin Lu, Yuanfan Yang, Zhongqing Guo, Jianpeng Liu
https://arxiv.org/abs/2509.19764

A General Many-Body Perturbation Framework for Moiré Systems: Application to Rhombohedral Pentalayer Graphene/hBN Heterostructures
Moiré superlattices host a rich variety of correlated topological states, including interaction-driven integer and fractional Chern insulators. A common approach to study interacting ground states at integer fillings is the Hartree-Fock mean-field method. However, this method neglects dynamical correlations, which often leads to an overestimation of spontaneous symmetry breaking and fails to provide quantitative descriptions of single-particle excitations. This work introduces a general many-b…

Revisiting THz absorption in GO and rGO liquid crystalline films
A. Vasilev, M. Zhezhu, H. Parsamyan, G. Baghdasaryan, M. Sargsyan, D. A. Ghazaryan, H. Gharagulyan
https://arxiv.org/abs/2507.21535

Revisiting THz absorption in GO and rGO liquid crystalline films
With a swift progress in modern high-throughput communication systems, security, sensing and medicine utilizing THz range technologies, the demand for easy-to-fabricate, lightweight and high-performance absorbing materials has increased drastically. Notably, traditional approaches of eliminating unwanted radiation based on metasurfaces often face fabrication challenges limiting their practicality. In this study, we propose a straightforward approach for fabricating graphene oxide (GO) and reduc…