Results 241 to 250 of about 13,457,474 (289)

Microscopic Insights into Magnetic Warping and Time‐Reversal Symmetry Breaking in Topological Surface States of Rare‐Earth‐Doped Bi2Te3

Advanced Materials, Volume 38, Issue 51, 11 September 2026.
Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano, Fabián Calleja, Ji Dai, Massimo Tallarida, Vera Marinova, Alessandro Barla, Marc G. Cuxart, Pierluigi Gargiani, Gonzalo N. Molina, José Angel Silva‐Guillén, Adriana I. Figueroa, Kevin García‐Díez, Sergio O. Valenzuela, Aitor Mugarza, Amadeo L. Vázquez de Parga, Rodolfo Miranda, Francisco Guinea, Manuela Garnica, Miguel A. Valbuena   +18 more
wiley   +1 more source

Solar Flare Detection from Sudden Ionospheric Disturbances in VLF Signals via a CNN-HMM Framework. [PDF]

Sensors (Basel)
Velchev Y, Bonev B, Iliev I, Gallagher P, Petkov PZ, Nachev I.   +5 more
europepmc   +1 more source

Gapless Superconductivity From Extremely Dilute Magnetic Disorder in 2H-NbSe_2-xS_x. [PDF]

Adv Mater
Moreno JA, Roig M, Barrena V, Herrera E, Ruiz AM, Mañas-Valero S, Fente A, Smeets A, Aragón J, Fasano Y, Wu B, Gastiasoro MN, Coronado E, Baldoví JJ, Andersen BM, Guillamón I, Suderow H.   +16 more
europepmc   +1 more source

Characterization of Pseudorange Errors in Hybrid LEO/MEO PNT System. [PDF]

Sensors (Basel)
Bianconi A, Morandi O, Morosi S, Dolfi M.   +3 more
europepmc   +1 more source

Statical optimization of cellulase enzymes production by Trichoderma harzianum PP400831 using response surface methodology and their application in production of 2G bioethanol. [PDF]

Microb Cell Fact
Ali MM, Ibrahim SM, Abdelazim M, Zohri AA.   +3 more
europepmc   +1 more source

Photothermal-responsive self-healing PDMS-based elastomers for stretchable strain sensors. [PDF]

RSC Adv
Zhu R, Ai L, Zhou Z, Gao J, Zhong Y, Zhang Q, Song W.   +6 more
europepmc   +1 more source

Fast Hydrogen Detection via Optical Fibers Coated with Metal Hydride Thin Films. [PDF]

Sensors (Basel)
Santos AD, Almeida MAS, Mendes JP, Almeida JMMM, Coelho LCC.   +4 more
europepmc   +1 more source

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Are trends in total electron content (TEC) really positive?

Journal of Geophysical Research: Space Physics, 2013
The total electron content (TEC) is a primary ionospheric parameter as it can be studied globally using signals of GNSS satellites. Lean et al. (2011, JGR) in the first study of long‐term trends in TEC found positive trends for the period 1995–2010 based on TEC derived from global GPS observations.
Jan Lastovicka
exaly   +2 more sources

On the sensitivity of total electron content (TEC) to upper atmospheric/ionospheric parameters

Journal of Atmospheric and Solar-Terrestrial Physics, 2005
Abstract The total electron content (TEC) is a key ionospheric parameter for various space weather applications. Over the last decade an extensive database of TEC measurements has become available from both space- and ground-based observations, and these measurements have established the general morphology of the global TEC distributions.
Geonhwa Jee, Ludger Scherliess
exaly   +2 more sources

Equatorial total electron content (TEC) at low and high solar activity

Advances in Space Research, 2009
Abstract Total electron content (TEC) derived from ionosonde data recorded at the station of Korhogo (Lat = 9.33°N, Long = 5.43°W, Dip = 0.67°S) are compared to the International Reference Ionosphere (IRI) model predicted TEC for high (1999) and low (1994) solar activity conditions.
O.K. Obrou, M.N. Mene, A.T. Kobea, K.Z. Zaka   +3 more
exaly   +2 more sources