Results 31 to 40 of about 5,003,905 (136)

Chiral Metal Halide Perovskites for Spin‐Polarized Light‐Emitting Diodes

Advanced Materials, Volume 38, Issue 23, 22 April 2026.
Chiral metal–halide perovskites offer a route to circularly polarized light without external polarizers. This Perspective compares two spin‐light emitting diode concepts: intrinsically chiral emissive layers and chiral spin‐filter interlayers that inject spin‐polarized carriers into efficient achiral emitters.
Ashish Gaurav, Jihyun Kim, Nadesh Fiuza‐Maneiro, Hongki Kim, Hae‐Jun Seok, Sergio Gómez‐Graña, Robert L. Z. Hoye, Lakshminarayana Polavarapu, Matthew J. Fuchter   +8 more
wiley   +1 more source

Long‐Range Exciton Energy Transfer in Two‐Dimensional Materials

Laser &Photonics Reviews, Volume 20, Issue 8, 17 April 2026.
This review highlights recent advances in long‐range exciton energy transfer within planar 2D‐material architectures. It emphasizes the emergence of self‐hybridized excitonpolaritons, exciton coupling to surface plasmon polaritons and plasmonic lattices, and the role of dipoledipole transfer pathways in enabling efficient nanoscale energy transport ...
Paul H. Bittorf, Maximilian Black, Hebrew Crispin, Prabhdeep Singh, Parsa Darman, Sara Darbari, Fatemeh Chahshouri, Masoud Taleb, Nahid Talebi   +8 more
wiley   +1 more source

Resonant Dyakonov–Shur Magnetoplasmons in Graphene Terahertz Photodetectors

Nanophotonics, Volume 15, Issue 8, 24 April 2026.
Cavity‐confined Dyakonov–Shur plasmons in graphene evolve into magnetoplasmons by an external perpendicular magnetic field. Gate‐tunable THz photocurrent spectroscopy reveals their dispersion over a broad frequency range, uncovering a nonmonotonic behavior in monolayer graphene in contrast to the conventional response of bilayer graphene.
Juan A. Delgado‐Notario, Cedric Bray, Elsa Pérez‐Martín, Benjamin Benhamou‐Bui, Namrata Saha, Sahil Parvez, Christophe Consejo, Guillaume Sigu, Salah Benlemqwanssa, Laurent Bonnet, Takashi Taniguchi, Kenji Watanabe, José M. Caridad, Sergey S. Krishtopenko, Yahya M. Meziani, Benoit Jouault, Jérémie Torres, Sandra Ruffenach, Frédéric Teppe   +18 more
wiley   +1 more source

Unusual spin and angular momentum of Dyakonov waves at the hyperbolic-material surface

Optics Express, 2020
Three Dyakonov-like polaritons (DLPs) exist at the interface between a hyperbolic material (HM) and a covering medium (CM). Each DLP is a hybridized-polarization surface polariton composed of two evanescent waves on both sides of the interface. We investigated their spin and angular momentum.
Yuqi, Zhang, Xiangguang, Wang, Dezhi, Zhang, Shufang, Fu, Sheng, Zhou, Xuan-Zhang, Wang   +5 more
openaire   +2 more sources

Unprecedented Spin‐Lifetime of Itinerant Electrons in Natural Graphite Crystals

Advanced Functional Materials, Volume 36, Issue 18, 2 March 2026.
Graphite exhibits extraordinary spintronic potential, with electron spin lifetimes reaching 1,000 ns at room temperature ‐ over 100 times longer than graphene‐based devices. Magnetic resonance spectroscopy reveals strong anisotropy: out‐of‐plane spins live 50 times longer than their in‐plane counterparts.
Bence G. Márkus, Dávid Beke, Lili Vajtai, András Jánossy, László Forró, Ferenc Simon   +5 more
wiley   +1 more source

Quantifying Spin Defect Density in hBN via Raman and Photoluminescence Analysis

Advanced Functional Materials, Volume 36, Issue 20, 9 March 2026.
An all‐optical method is presented for quantifying the density of boron vacancy spin defects in hexagonal boron nitride (hBN). By correlating Raman and photoluminescence signals with irradiation fluence, defect‐induced Raman modes are identified and established an relationship linking optical signatures to absolute defect densities. This enables direct
Atanu Patra, Paul Konrad, Andreas Sperlich, Timur Biktagirov, Wolf Gero Schmidt, Lesley Spencer, Igor Aharonovich, Sven Höfling, Vladimir Dyakonov   +8 more
wiley   +1 more source

Direct Observation of Intrinsic Spin–Layer Coupling and Robust Valley Polarization in Bilayer MoS2

Small Science, Volume 5, Issue 11, November 2025.
This study experimentally demonstrates finite and even enhanced circular polarization in bilayer MoS2, despite its centrosymmetric 2H stacking, across all temperatures. The degree of circular polarization exceeds that of monolayers, attributed to spin–layer coupling and suppression of spin‐flip processes.
Yumin Sim, Je‐Ho Lee, Nguyen T. Hoang, No‐Won Park, Sang‐Kwon Lee, Maeng‐Je Seong   +5 more
wiley   +1 more source

Broken Structural Symmetry in Terahertz Detectors: Physical Mechanisms, Device Design, and Recent Advances

Small Structures, Volume 6, Issue 11, November 2025.
Breaking the structural symmetry of devices is a crucial design strategy that endows terahertz (THz) detectors with novel operating mechanisms and unique characteristics. This study provides an in‐depth discussion on symmetry‐breaking‐induced phenomena, novel asymmetric structures, and dominant detection mechanisms.
Hecheng Han, Baoqing Zhang, Peng Guo, Shaocong Lv, Zihao Cheng, Yue Li, Yuxiang Li, Zihao Zhang, Jiawei Zhang   +8 more
wiley   +1 more source

Stone dust in endourology: a systematic review of its definition, management, and clinical impact

BJU International, Volume 136, Issue 2, Page 185-197, August 2025.
Objective To evaluate and synthesise the existing literature on stone dust (DUST) in endourology, focusing on its definition, creation methods, and removal techniques. Methods A comprehensive electronic literature search was conducted using the PubMed/Medline, Web Of Science, and Embase databases to identify reports published until October 2024.
Stefano Moretto, Alberto Quarà, Federico Zorzi, Alejandra Bravo‐Balado, Aideen Madden, Johan Cabrera, Mariela Corrales, Luigi Candela, Steeve Doizi, Frederic Panthier, Olivier Traxer   +10 more
wiley   +1 more source

Resonant Spin Amplification and Accumulation in MAPbI3 Single Crystals

Advanced Science, Volume 12, Issue 27, July 17, 2025.
Carrier spin dynamics are studied in a 20 µm thin MAPbI3 perovskite single crystal using time‐resolved Kerr ellipticity at cryogenic temperatures. Long spin relaxation (30 ns) and dephasing (21 ns) enable spin accumulation. Spin accumulation effects are discussed in detail along with carrier‐nuclear spin interactions.
Erik Kirstein, Dmitri R. Yakovlev, Evgeny A. Zhukov, Nataliia E. Kopteva, Bekir Turedi, Maksym V. Kovalenko, Manfred Bayer   +6 more
wiley   +1 more source