Results 81 to 90 of about 10,643,801 (300)

Robust quantum spin Hall state and quantum anomalous Hall state in graphenelike BC3 with adatoms

New Journal of Physics, 2018
Two-dimensional (2D) topological insulators (TIs) and Chern insulators (CIs) promise quantum spin Hall (QSH) and quantum anomalous Hall (QAH) states without dissipation.
Yinchang Zhao, Xi Chen, Zhenhong Dai, Chao Zhang, Chao Lian, Shuming Zeng, Sheng Meng, Jun Ni   +7 more
doaj   +1 more source

Amphoteric Cu‐Doping Leading to High Thermoelectric Performance in p‐Type Bismuth Antimony Telluride

Advanced Functional Materials, EarlyView.
This study shows that Cu plays two opposite roles in p‐type Bi0.5Sb1.5Te3 depending on the processing route. Under thermodynamic‐equilibrium bulk‐synthesis, Cu mainly occupies cation sites, increases hole concentration, preserves mobility, and slightly reduces lattice heat transport. The best‐performing composition among the investigated series reaches
Moritz Thiem, Zhiyuan Li, Minsu Heo, Fangyi Hu, Tian Lan, Youngdeog Koh, Ruiwen Xie, Chuanmu Tian, Marc Widenmeyer, Hyun‐Sik Kim, Jan P. Hofmann, Yuan Yu, Hongbin Zhang, Anke Weidenkaff, G. Jeffrey Snyder, Wenjie Xie   +15 more
wiley   +1 more source

Limits to the Hall Effect and Other Nonreciprocal Effects in Three‐Dimensional Metamaterials

Advanced Materials, EarlyView.
Comprehensive and fundamental bounds on nonreciprocal effects in three‐dimensional metamaterials are derived. They reveal that the effective Hall mobility cannot exceed the largest constituent mobility, that, under certain conditions, the Verdet constant cannot be enhanced, and that, for constituents with Hall coefficients of the same sign, the largest
Christian Kern, Graeme W. Milton
wiley   +1 more source

Letter from James Hall to his parents, 22 April 1842

James Hall writes that he has only 20 pupils; many schools are closing due to lack of students; Court of Common Pleas to hear a breach of promise case argued by two former Senators (Henry Hubbard and Frank Pierce); includes a brief response from his ...
Hall, James A., 1816-1845;
core   +1 more source

Type-II Dirac Fermions in Monolayer In₂O: Interplay of Magnetotransport, Spin Hall Effect, and Superconductivity. [PDF]

Adv Sci (Weinh)
First‐principles calculations reveal that monolayer In2O${\rm In}_2{\rm O}$ hosts type‐II Dirac fermions near the Fermi level, which split into Weyl points under spin‐orbit coupling. The material exhibits negative and giant magnetoresistance, a pronounced spin Hall effect, and phonon‐mediated superconductivity at 1.5 K, establishing it as a unique ...
Liu QB, Feng DM, Zhao WN, Zhao YY, Xiong L, Tan XY, Fu HH.   +6 more
europepmc   +2 more sources

Evidence for Itinerant Ferromagnetic Flat Bands Producing Large Transverse Responses

Advanced Materials, EarlyView.
Itinerant ferromagnetic flat bands are demonstrated in GdCo5 with a high Curie temperature of 940K, a stacked honeycomb–kagome lattice, through angle‐resolved photoemission spectroscopy and magneto‐thermoelectric measurements. These topological flat bands generate large Berry curvaturte, producing gigantic anomalous Nernst effect with record‐high ...
Susumu Minami, Yangming Wang, Seigo Souma, Hiroto Nakamura, Akito Sakai, Takumi Osumi, Hang Su, Hikaru Watanabe, Shun'ichiro Kurosawa, Rikuto Oiwa, Daisuke Nishio‐Hamane, Kosuke Nakayama, Takuya Nomoto, Ryotaro Arita, Takafumi Sato, Satoru Nakatsuji   +15 more
wiley   +1 more source

Letter from James and Mary Hall to their parents, 15 March 1840

James and Mary Hall describe the journey by stage to Unity, New Hampshire to their parents; James has 23 pupil;, some are learning painting and fencing; he writes of a stuttering student.Transcriptions may be subject to ...
Hall, James A., 1816-1845;
core   +1 more source

Influence of fixed charges and trapped electrons on free electron mobility at 4H-SiC(0001)/SiO2 interfaces with gate oxides annealed in NO or POCl3

Applied Physics Express
Free electron mobility ( μ _free ) in 4H-SiC(0001) MOSFETs with gate oxides annealed in NO or POCl _3 was calculated in a wide range of effective normal field ( E _eff ) from 0.02 to 2 MV cm ^−1 , taking account of scattering by fixed charges and trapped
Koji Ito, Hajime Tanaka, Masahiro Horita, Jun Suda, Tsunenobu Kimoto   +4 more
doaj   +1 more source

Spin Hall effect of linearly polarized light passed through a metasurface

Компьютерная оптика
The density of the longitudinal component of the spin angular momentum (SAM) vector is calculated for a paraxial vector Gaussian beam with a periodic one-dimensional modulation.
A.G. Nalimov, A.A. Kovalev
doaj   +1 more source

Analytic results of the excited electronic states at υ = 1/3 and the Laughlin-Jain microscopic wave function approaches

Condensed Matter Physics, 2019
In this work we studied the properties of a two-dimensional electronic gas subjected to a strong magnetic field and cooled at a low temperature. We reported exact analytical results of energies at the ground state. The results are for systems up to N_e =
M.A. Ammar
doaj   +1 more source