Results 91 to 100 of about 120,404 (314)
Black holes beyond general relativity: theoretical and phenomenological developments. [PDF]
, 2018 In four dimensions, general relativity is the only viable theory of gravity satisfying the requirements of diffeoinvariance and strong equivalence principle.
Pacilio, Costantino
core
Advanced Functional Materials, EarlyView.Moiré band engineering in graphene/hexagonal boron nitride–based superlattices unlocks van Hove singularities (VHSs) for terahertz (THz) optoelectronics. Tuning the Fermi level near these singularities, associated with secondary neutrality points (SNPs), enhances the photothermoelectric response.
Leonid Elesin +16 more
wiley +1 more source
Black hole critical phenomena without black holes [PDF]
Pramana, 2000 13 pages, 6 figures; Submission for the proceedings of ICGC 2000 in the journal ...
openaire +2 more sources
New Estimates of the Spin and Accretion Rate of the Black Hole M87*
The Astrophysical Journal LettersIn this Letter, we use the imaging results of M87* from the Event Horizon Telescope (EHT) to calculate the rotational velocity of the inner edge of the accretion disk and find a value of ∼0.14 c .
Michael Drew +4 more
doaj +1 more source
Binary black holes from population III stars. [PDF]
, 2022 openIn this thesis I evaluate the merger rate density of binary black holes from Population III stars. This work takes into consideration different models for the stellar system's initial conditions and for the star formation rate density.
MERLI, LORENZO
core
Large Transverse Thermoelectric Effect in Weyl Semimetal TaIrTe4 Engineered for Photodetection
Advanced Functional Materials, EarlyView.This experimental work shows that the anomalous scanning photocurrent response patterns of the Weyl semimetal TaIrTe4${\rm TaIrTe}_4$ under visible and long‐wave infrared illumination are due to a large transverse thermoelectric response of the material.
Morgan G. Blevins +6 more
wiley +1 more source
Advanced Functional Materials, EarlyView.In this report, a self‐adaptive anhydrous passivation strategy is introduced by incorporating trimellitic anhydride (TMAH) into the perovskite precursor. In situ hydrolysis of TMAH yields trimellitic acid (TMA); ‐C═O/‐COO− groups of TMAH/TMA form a chelate with undercoordinated Pb2+/Sn2+, regulate nucleation, promote (100) orientation, passivate ...
Md. Ataur Rahman +6 more
wiley +1 more source
Explorations of four and five dimensional black hole spacetimes [PDF]
, 2009 This thesis concentrates on four and five dimensional black holes and their associated geodesies. Some coordinate charts are presented, which are useful in the analysis of both static and rotating black holes, and their mathematical properties ...
Hoskisson, James
core
Advanced Functional Materials, EarlyView.Terminal groups on Cu porphyrins modulate the electronic states of single‐atom Cu centers through a long‐range electronic effect, without altering the Cu coordination geometry. Meanwhile, a multi‐descriptor framework is established that incorporates porphyrin regulation, hybrid catalyst properties, and CO2 photoreduction capabilities.
Yi Zhang +13 more
wiley +1 more source
Scalarization of Taub-NUT black holes in extended scalar-tensor-Gauss-Bonnet theory
Journal of High Energy PhysicsRecently, the scalarization of the Schwarzschild black hole has been extensively studied. In this work, we explore the scalarization of the Taub-NUT black hole within the context of the extended scalar-tensor-Gauss-Bonnet theory, which admits a Ricci ...
Hai-Shan Liu, Lei Zhang
doaj +1 more source