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The room temperature carrier mobility in atomically thin 2D materials is usually far below the intrinsic limit imposed by phonon scattering as a result of scattering by remote charged impurities in its environment. We simulate the charged…

Mesoscale and Nanoscale Physics · Physics 2014-12-11 Zhun-Yong Ong , Gang Zhang , Yong Wei Zhang

Ballistic transport characteristics of metal-oxide semiconductor field effect transistors (MOSFETs) based on anisotropic two-dimensional (2-D) materials monolayer HfS2 and phosphorene are explored through quantum transport simulations. We…

Mesoscale and Nanoscale Physics · Physics 2015-06-03 Jiwon Chang

Various types of defects in MoS2 monolayers and their influence on the electronic structure and transport properties have been studied using the Density-Functional based Tight-Binding method in conjunction with the Green's Function…

Materials Science · Physics 2014-03-04 Mahdi Ghorbani-Asl , Andrey N. Enyashin , Agnisezka Kuc , Gotthard Seifert , Thomas Heine

We report results of 57Fe Mossbauer and 31P NMR studies of a phosphide FeP powder sample performed in a wide temperature range including the point (TN ~ 120 K) of magnetic phase transitions. The 57Fe Mossbauer spectra at low temperatures T…

Unilateral interparticle interactions have an effect on the elastic response of granular materials due to the opening and closing of contacts during quasi-static shear deformations. A simplified model is presented, for which constitutive…

Soft Condensed Matter · Physics 2012-05-22 M. Reza Shaebani , Jens Boberski , Dietrich E. Wolf

Moir\'e superlattices of van der Waals heterostructures provide a powerful new way to engineer the electronic structures of two-dimensional (2D) materials. Many novel quantum phenomena have emerged in different moir\'e heterostructures,…

The structure and dynamical properties of the Fe$_3$Si/GaAs(001) interface are investigated by density functional theory and nuclear inelastic scattering measurements. The stability of four different atomic configurations of the…

We investigate theoretically the anisotropic electronic and optical behaviors of a monolayer black phosphorus (phosphorene) modulated by periodic potential superlattices in arbitrary directions. We demonstrate that different strength and…

Mesoscale and Nanoscale Physics · Physics 2019-12-17 Xiaojing Li , Wen Yang , Kun Luo , Zhenhua Wu

We study the light scattering of homogenous radially-anisotropic spherical particles. It is shown that radial anisotropy can be employed to tune effectively the electric resonances, and thus enable flexible overlapping of electric and…

Optics · Physics 2023-07-19 Wei Liu

Anisotropic two-dimensional layered materials with low-symmetric lattices have attracted increasing attention due to their unique orientation-dependent mechanical properties. Black arsenic (b-As), with the puckered structure, exhibits…

Materials Science · Physics 2023-09-29 Jingjing Zhang , Shang Chen , Guoshuai Du , Yunfei Yu , Wuxiao Han , Qinglin Xia , Ke Jin , Yabin Chen

Transition metal dichalcogenide, especially MoS2 has attracted lot of attention recently owing to its tunable visible range band gap and anisotropic electronic and transport properties. Here, we report a comprehensive inelastic light…

Materials Science · Physics 2020-08-26 Deepu Kumar , Birender Singh , Rahul Kumar , Mahesh Kumar , Pradeep Kumar

We investigate the in-plane anisotropy of Fe 3d orbitals occurring in a wide temperature and composition range of BaFe2(As1-xPx)2 system. By employing the angle-resolved photoemission spectroscopy, the lifting of degeneracy in dxz and dyz…

Superconductivity · Physics 2015-12-09 T. Sonobe , T. Shimojima , A. Nakamura , M. Nakajima , S. Uchida , K. Kihou , C. H. Lee , A. Iyo , H. Eisaki , K. Ohgushi , K. Ishizaka

We derive an analytic formula for the elastic bending modulus of single-layer black phosphorus (SLBP) based on the valence force field model. The obtained elastic bending modulus is 4.8028 eV and 7.9905 eV along the armchair and zigzag…

Materials Science · Physics 2015-10-28 Hao-Yu Zhang , Jin-Wu Jiang

Antiferromagnetic (AFM) FePS3 has gained significant interest recently for its potential applications in spin-related devices. A single layer is comprised of a honeycomb network, stabilized by long-range spin-exchange interactions, with a…

ReS$_2$ has recently emerged as a new member in the rapidly growing family of two-dimensional materials. Unlike MoS$_2$ or WSe$_2$, the optical and electrical properties of ReS$_2$ are not isotropic due to the reduced symmetry of the…

Mesoscale and Nanoscale Physics · Physics 2016-02-17 Philipp Nagler , Gerd Plechinger , Christian Schüller , Tobias Korn

The carrier mobility of anisotropic two-dimensional (2D) semiconductors under longitudinal acoustic (LA) phonon scattering was theoretically studied with the deformation potential theory. Based on Boltzmann equation with relaxation time…

Computational Physics · Physics 2016-12-28 Haifeng Lang , Shuqing Zhang , Zhirong Liu

Sphere-patterned ultrathin block copolymers films are potentially interesting for a variety of applications in nanotechnology. We use self-consistent field theory to investigate the elastic response of sphere monolayer films with respect to…

Soft Condensed Matter · Physics 2024-05-01 Le Qiao , Daniel A. Vega , Friederike Schmid

We derive a dielectric function tensor model approach to render the optical response of monoclinic and triclinic symmetry materials with multiple uncoupled infrared and farinfrared active modes. We apply our model approach to monoclinic…

Organic semiconductors tend to self-assemble into highly ordered and oriented morphologies with anisotropic optical properties. Studying these optical anisotropies provides insight into processing-dependent structural properties and informs…

Materials Science · Physics 2016-11-03 Steven J. Brown , Ruth A. Schlitz , Michael L. Chabinyc , Jon A. Schuller

The plasmon excitations in Coulomb-coupled spherical two-dimensional electron gases (S2DEGs) reveal an interesting dependence on the displacement vector between the centers of the spheres with respect to the axis of quantization for the…

Mesoscale and Nanoscale Physics · Physics 2015-06-18 Andrii Iurov , Godfrey Gumbs , Bo Gao , Danhong Huang