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Recently the graphene/SiC interface has emerged as a versatile platform for the epitaxy of otherwise unstable, monoelemental, two-dimensional (2D) layers via intercalation. Intrinsically capped into a van der Waals heterostructure with…

Mesoscale and Nanoscale Physics · Physics 2022-06-23 Philipp Rosenzweig , Hrag Karakachian , Dmitry Marchenko , Ulrich Starke

Tunneling between two parallel, two-dimensional electron gases (2DEGs) in a complex oxide heterostructure containing a large, mobile electron density of ~ 3x10^14 cm^-2 is used to probe the subband structure of the 2DEGs.…

Mesoscale and Nanoscale Physics · Physics 2013-11-26 Santosh Raghavan , S. James Allen , Susanne Stemmer

We utilized high-resolution resonant angle-resolved photoemission spectroscopy (ARPES) to study the band structure and hybridization effect of the heavy-fermion compound Ce2IrIn8. We observe a nearly flat band at the binding energy of 7 meV…

Strongly Correlated Electrons · Physics 2019-05-21 H. -J. Liu , Y. -J. Xu , Y. -G. Zhong , J. -Y. Guan , L. -Y. Kong , J. -Z. Ma , Y. -B. Huang , Q. -Y. Chen , G. -F. Chen , M. Shi , Y. -F. Yang , H. Ding

We have performed high field magnetotransport measurements to investigate the interface electron gas in LaAlO3/SrTiO3 heterostructures. Shubnikov-de Haas oscillations reveal several 2D conduction subbands with carrier effective masses…

We study the effects of insulating oxides in their crystalline forms on the energy band structure of monolayer and bilayer graphene using a \textit{first principles} density functional theory based electronic structure method and a local…

Materials Science · Physics 2011-12-09 Priyamvada Jadaun , Sanjay K. Banerjee , Leonard F. Register , Bhagawan Sahu

A study of possible superconducting phases of graphene has been constructed in detail. A realistic tight binding model, fit to ab initio calculations, accounts for the Li-decoration of graphene with broken lattice symmetry, and includes $s$…

Superconductivity · Physics 2018-09-20 Rouhollah Gholami , Rostam Moradian , Sina Moradian , Warren E. Pickett

Two-dimensional (2D) WS2 films were deposited on SiO2 wafers, and the related interfacial properties were investigated by high-resolution x-ray photoelectron spectroscopy (XPS) and first-principles calculations. Using the direct (indirect)…

Materials Science · Physics 2022-05-19 Changjie Zhou , Huili Zhu , Weifeng Yang , Qiubao Lin , Tongchang Zheng , Lan Yang , Shuqiong Lan

Following the discovery of the Fe-pnictide superconductors, LDA band structure calculations showed that the dominant contributions to the spectral weight near the Fermi energy came from the Fe 3d orbitals. The Fermi surface is characterized…

Superconductivity · Physics 2009-11-13 S. Raghu , Xiao-Liang Qi , Chao-Xing Liu , D. Scalapino , Shou-Cheng Zhang

AlYN and AlScN have recently emerged as promising nitride materials that can be integrated with GaN to form two-dimensional electron gases (2DEGs) at heterojunctions. Electron transport properties in these heterostructures have been…

Mesoscale and Nanoscale Physics · Physics 2026-01-07 Yu-Hsin Chen , Thai-Son Nguyen , Isabel Streicher , Jimy Encomendero , Stefano Leone , Huili Grace Xing , Debdeep Jena

Photoemission, from core levels and valence band, and low-energy electron diffraction (LEED) have been employed to investigate the electronic and structural properties of novel graphene-ferromagnetic (G-FM) systems,obtained by intercalation…

Graphyne (GY) and graphdiyne (GDY)-based materials represent an intriguing class of two-dimensional (2D) carbon-rich networks with tunable structures and properties surpassing those of graphene. However, the challenge of fabricating…

The calculated results of FeCl3 graphite intercalation compounds show the detailed features. The stage-1 FeCl3-graphite intercalation compounds present diversified electronic properties due to the intercalant. The first-principles…

Materials Science · Physics 2021-01-01 Li Wei-Bang , Lin Shih-Yang , Tsai Ming-Shuei , Lin Ming-Fa , Lin Kuang-I

The effect of Mn intercalation on the atomic, electronic and magnetic structure of the graphene/Cu(111) interface is studied using state-of-the-art density functional theory calculations. Different structural models of the…

Materials Science · Physics 2021-12-23 Qilin Guo , Yuriy Dedkov , Elena Voloshina

We report a multiband transport study of bilayer graphene at high carrier densities. Employing a poly(ethylene)oxide-CsClO$_4$ solid polymer electrolyte gate we demonstrate the filling of the high energy subbands in bilayer graphene samples…

Mesoscale and Nanoscale Physics · Physics 2015-05-28 Dmitri K. Efetov , Patrick Maher , Simas Glinskis , Philip Kim

Graphdiynes (GDYs) represent a class of 2D carbon materials based on sp-sp$^2$ hybridization with appealing properties and potential applications. Recent advances have demonstrated the experimental self-assembly of GDYs on metal substrates.…

We study the main intra-band and inter-band transport properties at zero temperature of free electron-like system undergoing a topological reconstruction of the Fermi surface for the two-dimensional and three-dimensional case. The…

Strongly Correlated Electrons · Physics 2022-05-25 Zoran Rukelj , Danko Radić

Chemical bonding and electronic structure of MgB2, a boron-based newly discovered superconductor, is studied using self-consistent band structure techniques. Analysis of the transformation of the band structure for the hypothetical series…

Condensed Matter · Physics 2009-11-07 K. D. Belashchenko , M. van Schilfgaarde , V. P. Antropov

This study examines the potential of superconductivity in transition metal (TM) intercalated bilayer graphene through a systematic study of the electronic and magnetic properties. We determine the electronic structure for all first row TM…

frared reflectance spectroscopy at 4K in fields up to 31T. Both Schr\"odinger-like (K-point) and Dirac-like (H-point) Landau level transitions have been observed, and their magnetic field dispersion are analyzed by a newly-derived limiting…

Materials Science · Physics 2015-05-28 L. -C. Tung , P. Cadden-Zimansky , J. Qi , 1 Z. Jiang , D. Smirnov

The structure and electrical properties of a two-dimensional (2D) sheet of silicon on a graphene substrate are studied using first-principles calculations. A new corrugated rectangular structure of silicon is proposed to be the most…

Mesoscale and Nanoscale Physics · Physics 2014-01-09 Ruiping Zhou , Lok C. Lew Yan Voon , Yan Zhuang