Results 71 to 80 of about 5,989 (295)

Directional Flow of Confined Polaritons in CrSBr

Advanced Materials, EarlyView.
CrSBr, a layered magnetic semiconductor, naturally channels self‐hybridized excitonpolaritons into highly directional flow. Its intrinsic optical anisotropy, high refractive index, and strong lightmatter coupling enable long‐range guided modes along the a‐axis, with propagation lengths set by their excitonphoton admixture.
Pratap Chandra Adak, Sichao Yu, Jaime Abad‐Arredondo, Biswajit Datta, Andy Cruz, Sorah Fischer, Kseniia Mosina, Zdeněk Sofer, Antonio I. Fernández‐Domínguez, Francisco J. Garcia‐Vidal, Vinod M. Menon   +10 more
wiley   +1 more source

Magneto-optics of massive Dirac fermions in bulk Bi2Se3

, 2015
We report on magneto-optical studies of Bi2Se3, a representative member of the 3D topological insulator family. Its electronic states in bulk are shown to be well described by a simple Dirac-type Hamiltonian for massive particles with only two parameters:
Brauner, T., Brunner, K., Brüne, C., Drašar, Č., Faugeras, C., Gould, C., Grauer, S., Hankiewicz, E. M., Kumar, N. K. Sampath, Martinez, G., Michel, C., Molenkamp, L. W., Orlita, M., Piot, B. A., Potemski, M., Schreyeck, S.   +15 more
core   +3 more sources

Full Bulk Spin Polarization and Intrinsic Tunnel Barriers at the Surface of Layered Manganites [PDF]

, 2005
Transmission of information using the spin of the electron as well as its charge requires a high degree of spin polarization at surfaces. At surfaces however this degree of polarization can be quenched by competing interactions.
Badica, Elvira, Berghuis, P., Freeland, J. W., Gray, K. E., Kavich, J., Mitchell, J. F., Ozyuzer, L., Zheng, H.   +7 more
core   +2 more sources

Self‐Assembled Inorganic Nanomembrane Tubes: Rolled‐Up Piezoelectrics for Microacoustic Wave‐Based Actuators and Sensors

Advanced Materials, EarlyView.
This study demonstrates a self‐assembly process to generate free‐standing piezoelectric nanomembranes, forming ultracompact microtubular acoustic wave sensors and actuators. The miniaturized 3D piezoelectric platform reported in this work can be applied in telecommunication, energy harvesting, and acoustofluidics. Moreover, the 3D self‐assembly can add
Raphaël C. L‐M. Doineau, Christian N. Saggau, Stefan Baunack, Thomas Gemming, Yara Abdelaal, Robert Weser, Oliver G. Schmidt, Hagen Schmidt, Andreas Winkler, Mariana Medina‐Sánchez   +9 more
wiley   +1 more source

Gyrotropic impact upon negatively refracting surfaces [PDF]

, 2005
Surface wave propagation at the interface between different types of gyrotropic materials and an isotropic negatively refracting medium, in which the relative permittivity and relative permeability are, simultaneously, negative is investigated. A general
Allan Boardman, Ambrazeviciene V, Boardman A D, Boardman A D, Boardman A D, Chinowsky T M, Ferguson P F, Goos F, Hartstein A, Hermann C, Horowitz B R, Kretschmann E, Kretschmann E, Lakhtakia A, Larry Velasco, McCall M W, Neil King, Newton I, Pendry J B, Rayleigh L, Sihvola A, Strelniker Y M, Sugano S, Tamir T, Veselago V G, Yuriy Rapoport, Ziolkowski R W, Zvezdin A K   +27 more
core   +2 more sources

Electrically Readable Lateral Flow Assay Using Organic Transistors for Diagnostic Applications

Advanced Materials, EarlyView.
Electrolyte‐gated organic field‐effect transistors (EGOFETs) are integrated with lateral flow (LF) paper fluidics to create a reusable, portable, and low‐cost point‐of‐care (PoC) diagnostic test. The devices are validated for Human Immunoglobulin G detection, achieving high sensitivity (0.1 fm), selectivity, and reproducibility with rapid results in 20–
María Jesús Ortiz‐Aguayo, Carme Martínez‐Domingo, Diego Gutiérrez, Dean Kos, Marta Mas‐Torrent   +4 more
wiley   +1 more source

Unraveling femtosecond spin and charge dynamics with extreme ultraviolet transverse MOKE spectroscopy

Physical Review Research
The magneto-optical Kerr effect (MOKE) in the extreme ultraviolet (EUV) regime has helped to elucidate some of the key processes that lead to the manipulation of magnetism on ultrafast timescales.
Henrike Probst, Christina Möller, Maren Schumacher, Thomas Brede, John Kay Dewhurst, Marcel Reutzel, Daniel Steil, Sangeeta Sharma, G. S. Matthijs Jansen, Stefan Mathias   +9 more
doaj   +1 more source

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

Impact of geometry and magneto-optical properties on field enhancement and optical bistability in core–shell nanoparticles

Journal of Theoretical and Applied Physics, 2018
We study the interaction of electromagnetic field with two of the most tunable nanostructure geometries for nanoplasmonics including the magneto-optical nanoshell structure and the spheroidal geometry. We investigate the effect of combining both geometry
Tayebeh Naseri, Fatemeh Pourkhavari
doaj   +1 more source

Modified Sagnac interferometer for high-sensitivity magneto-optic measurements atcryogenic temperatures

, 2006
We describe a geometry for a Sagnac interferometer with a zero-area Sagnac loop for measuring magneto-optic Kerr effect (MOKE) at cryogenic temperatures. The apparatus is capable of measuring absolute polar Kerr rotation at 1550 nm wavelength without any
Beyersdorf, Peter T., Fejer, Martin M., Kapitulnik, Aharon, Xia, Jing   +3 more
core   +1 more source