Results 101 to 110 of about 53,071 (272)

Distinct topological properties in Ce monopnictides having correlated f electrons: CeN vs. CeBi

Physical Review Research, 2020
The hitherto-studied topological nature in Ce monopnictides (CePn) has been discussed based solely on their p-d band inversion, despite the existence of f electrons.
Dong-Choon Ryu, Junwon Kim, Kyoo Kim, Chang-Jong Kang, J. D. Denlinger, B. I. Min   +5 more
doaj   +1 more source

Topological crystalline insulator states in Pb(1-x)Sn(x)Se

, 2012
Topological insulators are a novel class of quantum materials in which time-reversal symmetry, relativistic (spin-orbit) effects and an inverted band structure result in electronic metallic states on the surfaces of bulk crystals.
A Szczerbakow, A Szczerbakow, A. Szczerbakow, AA Taskin, AJ Strauss, B. J. Kowalski, B. M. Wojek, BN Jensen, CS Lent, D Hsieh, D-X Qu, DL Mitchell, E. Łusakowska, G Nimtz, J Melngailis, JE Moore, JG Analytis, JO Dimmock, JR Dixon, K. Dybko, L Fu, L Fu, M Kriechbaum, M König, M. H. Berntsen, M. Szot, MH Berntsen, MZ Hasan, O. Tjernberg, P. Dziawa, PB Littlewood, R Buczko, R. Buczko, S-Y Xu, T. Balasubramanian, T. Story, TH Hsieh, X-L Qi, Y Pei, Z Ren   +39 more
core   +1 more source

Inducing Ferromagnetism by Structural Engineering in a Strongly Spin‐Orbit Coupled Oxide

Advanced Functional Materials, EarlyView.
ABSTRACT Magnetic materials with strong spin‐orbit coupling (SOC) are essential for the advancement of spin‐orbitronic devices, as they enable efficient spin‐charge conversion, complex magnetic structures, spin‐valley physics, topological phases and other exotic phenomena.
Ji Soo Lim, Carmine Autieri, Merit Spring, Martin Kamp, Amar Fakhredine, Pavel Potapov, Daniel Wolf, Sergii Pylypenko, Axel Lubk, Johannes Schultz, Nicolas Perez, Börge Mehlhorn, Louis Veyrat, Mario Cuoco, Fadi Choueikan, Philippe Ohresser, Bernd Büchner, Giorgio Sangiovanni, Ralph Claessen, Michael Sing   +19 more
wiley   +1 more source

Zero-bias photocurrent in ferromagnetic topological insulator

Nature Communications, 2016
By magnetic-doping, the electronic band structure of a topological insulator can be significantly altered to yield functional behaviour. Here, the authors demonstrate a large photocurrent response, and its control, under zero-bias in an optimally ...
N. Ogawa, R. Yoshimi, K. Yasuda, A. Tsukazaki, M. Kawasaki, Y. Tokura   +5 more
doaj   +1 more source

Superconductivity and non-metallicity induced by doping the topological insulators Bi2Se3 and Bi2Te3

, 2010
We show that by Ca-doping the Bi2Se3 topological insulator, the Fermi level can be fine tuned to fall inside the band gap and therefore suppress the bulk conductivity. Non-metallic Bi2Se3 crystals are obtained.
Alpichshev, Bernevig, Bernevig, Caywood, Checkelsky, Chen, D. Qu, Fleurial, Fu, Fu, Fu, Hor, Hor, Hsieh, Hsieh, Hulliger, Hulliger, J.G. Checkelsky, Miller, Mishray, Moore, Morosan, Morosan, N.P. Ong, Qu, R.J. Cava, Scherrer, Vaško, Xia, Y.S. Hor, Zhang, Zhang   +31 more
core   +1 more source

Algorithmic Design of Disordered Networks With Arbitrary Coordination: Application to Biophotonics

Advanced Functional Materials, EarlyView.
Predictive Design of Disordered Networks: Disordered network‐like morphologies are abundant in nature, from cytoskeletal networks to bone structures and chalcogenide glasses. These structures are naturally hard to characterize. A new algorithmic tool extends the established Wooten–Weaire–Winer (WWW) algorithm to valencies above 4.
Florin Hemmann, Vincent Glauser, Ullrich Steiner, Matthias Saba   +3 more
wiley   +1 more source

Angle-resolved Photoemission Spectroscopy Study on the Surface States of the Correlated Topological Insulator YbB6

, 2014
We report the electronic structure of YbB6, a recently predicted moderately correlated topological insulator, measured by angle-resolved photoemission spectroscopy. We directly observed linearly dispersive bands around the time-reversal invariant momenta
Chen, F., Chen, S. D., Chen, X. H., Feng, D. L., Jiang, J., Niu, X. H., Wang, Y. H., Xia, M., Xie, B. P., Xu, D. F., Ye, Z. R., Zhang, T., Zhang, Y.   +12 more
core   +1 more source

Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems

Advanced Functional Materials, EarlyView.
MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley   +1 more source

Temporally Delayed Deployment of Photo‐Responsive Liquid Crystal Polymer Networks Toward Neural Interfaces

Advanced Healthcare Materials, EarlyView.
Deployable medical devices typically need external stimuli to trigger deployment. However, external stimuli are difficult to supply within tissues. Here, we describe a strategy to deploy small‐scale structures into soft tissues after insertion without the need for any stimulus. We demonstrate deployment within a tissue phantom.
Yeh‐Chia Tseng, Eleanor Nguyen Jeakle, Mahjabeen Javed, Rajasree Gopala Krishnan, Thomas J. Smith, Yoo Jin Lee, Sahana Dhananjayan, Sasha M. George, Manivannan Sivaperuman Kalairaj, Ali Hasan Zuaiter, Majed O. Althumayri, Hatice Ceylan Koydemir, Joseph J. Pancrazio, Taylor H. Ware   +13 more
wiley   +1 more source

Magnetoelectric polarizability and axion electrodynamics in crystalline insulators

, 2009
The orbital motion of electrons in a three-dimensional solid can generate a pseudoscalar magnetoelectric coupling $\theta$, a fact we derive for the single-particle case using a recent theory of polarization in weakly inhomogeneous materials.
Andrew M. Essin, David Vanderbilt, Joel E. Moore, M. Nakahara   +3 more
core   +1 more source