Results 11 to 20 of about 4,518,875 (307)
Gigahertz circular polarization oscillations in spin-polarized vertical-cavity surface-emitting lasers [PDF]
, 2010 We analyze ultrafast circular polarization oscillations in a commercial vertical-cavity surface-emitting laser after spin injection at room temperature. The circular polarization exhibits faster dynamics than the intensity and longer persistence than the
Hofmann, M. R. +11 more
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Batteries, 2023 This paper investigates the polarization and heat generation characteristics of batteries under different ambient temperatures and discharge rates by means of using a coupled electric–thermal model.
Jiayong Guo +3 more
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Temperature-dependent polarization in a non-polar crystal [PDF]
Nature, 2019 A crystal’s surface has been found to behave as a distinct material that has temperature-dependent electrical polarization — despite the rest of the crystal being non-polar. Pyroelectricity in the surface layers of strontium titanate.
Catalan, Gustau, Noheda, Beatriz
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Temperature inversion of the thermal polarization of water [PDF]
Physical Review E, 2015 Temperature gradients polarize water, a nonequilibrium effect that may result in significant electrostatic fields for strong thermal gradients. Using nonequilibrium molecular dynamics simulations, we show that the thermal polarization features a significant dependence with temperature that ultimately leads to an inversion phenomenon, whereby the ...
Armstrong, J, Bresme, F
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Electronic Materials, 2022 This work presents an examination and unification of fragmented data on spin polarization in half-metallic, ferrimagnetic oxides. It also includes well understood ferromagnetic metals for comparison.
Gunnar Suchaneck
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Lensing reconstruction with CMB temperature and polarization [PDF]
Physical Review D, 2003 Weak gravitational lensing by intervening large-scale structure induces a distinct signature in the cosmic microwave background (CMB) that can be used to reconstruct the weak-lensing displacement map. Estimators for individual Fourier modes of this map can be combined to produce an estimator for the lensing-potenial power spectrum.
Kesden, Michael +2 more
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Electrocaloric effect and freezing temperature in (Pb0.8Ba0.2)[(Zn1∕3Nb2∕3)0.7Ti0.3]O3 relaxor ferroelectric ceramic [PDF]
Journal of Advanced Dielectrics, 2016 The electrocaloric effect (ECE) is studied in (Pb0.8Ba0.2)[(Zn1∕3Nb2∕3)0.7Ti0.3]O3 relaxor ferroelectric ceramic by using an “indirect method”. The electric dependence for the polarization (hysteresis loops) has been obtained for several temperatures ...
A. Peláiz-Barranco +2 more
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CMB temperature and polarization anisotropy fundamentals [PDF]
Annals of Physics, 2003 The tremendous experimental progress in cosmic microwave background (CMB) temperature and polarization anisotropy studies over the last few years has helped establish a standard paradigm for cosmology at intermediate epochs and has simultaneously raised questions regarding the physical processes at the two opposite ends of time.
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Observation of room-temperature polar skyrmions [PDF]
Nature, 2019 Complex topological configurations are fertile ground for exploring emergent phenomena and exotic phases in condensed-matter physics. For example, the recent discovery of polarization vortices and their associated complex-phase coexistence and response under applied electric fields in superlattices of (PbTiO3)n/(SrTiO3)n suggests the presence of a ...
Das, S +26 more
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Observation of Cosmic Microwave Background Polarization with BICEP [PDF]
, 2009 Background Imaging of Cosmic Extragalactic Polarization (BICEP) is a bolometric polarimeter that has been optimized to target the B-mode of the cosmic microwave background (CMB) polarization at degree angular scales, which is a sensitive probe of the ...
Chiang, Hsin Cynthia
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