Results 81 to 90 of about 211,867 (345)

Defect‐Mediated Scintillation in Fully Inorganic Perovskites via Water‐Induced 0D/3D Phase Modulation

Advanced Functional Materials, EarlyView.
A reproducible synthesis to control 3D/0D phase ratios via water‐tuned solvent–antisolvent methods is presented. Enhanced scintillation yield and ultrafast decay are achieved. Defect‐driven emission mechanisms are revealed through cathodoluminescence and radioluminescence, shedding light on the underexplored role of the 0D Cs4PbBr6 and mixed 0D/3D ...
Mario Calora, Francesco Carulli, Nadir Vanni, Antonella Giuri, Elena Ferrari, Matteo Masino, Laura Lazzarini, Francesca Rossi, Gianluca Accorsi, Anna Moliterni, Davide Altamura, Cinzia Giannini, Luca Cappelletti, Gianluca Quarta, Alberto Quaranta, Rosanna Mastria, Anna Paola Caricato, Sergio Brovelli, Aurora Rizzo   +18 more
wiley   +1 more source

Four-field symmetry breakings in twin-resonator photonic isomers

Physical Review Research, 2023
Symmetry and symmetry breaking of light states play an important role in photonic integrated circuits and have recently attracted lots of research interest that is relevant to the manipulation of light polarization, telecommunications, all optical ...
Alekhya Ghosh, Lewis Hill, Gian-Luca Oppo, Pascal Del'Haye   +3 more
doaj   +1 more source

Dilatons for Dense Hadronic Matter

, 2009
The idea that the explicit breaking of scale invariance by the trace anomaly of QCD can be rephrased as a spontaneous breaking has been recently exploited to capture the low-energy strong interaction dynamics of dense (and also hot) matter in terms of ...
.E. Brown, Brown, Freund, Harada, Heinz, Hyun Kyu Lee, Lee, Lee, Mannque Rho, McLerran, Park, Rho, Shaposhnikov, Wetterrich, Zumino   +14 more
core   +3 more sources

Spontaneous symmetry breaking and the Goldstone theorem in non-Hermitian field theories [PDF]

Physical Review D, 2018
We demonstrate the extension to parity-time (PT)-symmetric field theories of the Goldstone theorem, confirming that the spontaneous appearance of a field vacuum expectation value via minimization of the effective potential in a non-Hermitian model is ...
J. Alexandre, J. Ellis, P. Millington, Dries Seynaeve   +3 more
semanticscholar   +1 more source

Fermi Surface Nesting and Anomalous Hall Effect in Magnetically Frustrated Mn2PdIn

Advanced Functional Materials, EarlyView.
Mn2PdIn, a frustrated inverse Heusler alloy, showing electronic‐structure driven anomalous Hall effect with Weyl crossings, Fermi‐surface nesting and near‐zero magnetization ideal for low‐magnetization spintronics. Abstract Noncollinear magnets with near‐zero net magnetization and nontrivial bulk electronic topology hold significant promise for ...
Afsar Ahmed, Arnab Bhattacharya, Prashant Singh, Ajay Kumar, Tukai Singha, Anis Biswas, Yaroslav Mudryk, I. Das   +7 more
wiley   +1 more source

Modified Gravity via Spontaneous Symmetry Breaking

, 2004
We construct effective field theories in which gravity is modified via spontaneous breaking of local Lorentz invariance. This is a gravitational analogue of the Higgs mechanism.
A closely-related example was considered in N. Arkani-Hamed, B. M Gripaios, But see A. Nicolis, But see A.I. Vainshtein, C. Eling, C.D. Hoyle ., C.M. Will, D.G. Boulware, E.G. Adelberger, G. 't Hooft, G. Hinshaw ., G.D. Moore, In axial gauge, J. Bjorken, J.W. Moffat, M. Fierz, M.J. Duff, N. Straumann, S.L. Dubovsky, S.M. Carroll, T. Jacobson, V. Rubakov, V.A. Kostelecky, V.I. Zakharov   +23 more
core   +1 more source

Spontaneous symmetry breaking in a quadratically driven nonlinear photonic lattice [PDF]

, 2017
We investigate the occurrence of a phase transition, characterized by the spontaneous breaking of a discrete symmetry, in a driven-dissipative Bose-Hubbard lattice in the presence of two-photon coherent driving.
V. Savona
semanticscholar   +1 more source

Dynamic Control of Synaptic Plasticity by Competing Ferroelectric and Trap‐Assisted Switching in IGZO Transistors with Al2O3/HfO2 Dielectrics

Advanced Functional Materials, EarlyView.
A frequency‐tunable ferroelectric synaptic transistor based on a buried‐gate InGaZnO channel and Al2O3/HfO2 dielectric stack exhibits linear and reversible weight updates using single‐polarity pulses. By switching between ferroelectric and trap‐assisted modes depending on input frequency, the device simplifies neuromorphic circuit design and achieves ...
Ojun Kwon, Dong Ho Lee, Seyoung Oh, Jongwon Yoon, Hyo‐Bae Kim, Ji‐Hoon Ahn, Woojin Park, Han Seul Kim, Byungjin Cho   +8 more
wiley   +1 more source

From pure to mixed: Altermagnets as intrinsic symmetry-breaking indicators

Physical Review Research
We investigate the impact of the presence of altermagnetism on physical observables in the presence of explicit or spontaneous symmetry-breaking fields.
Aline Ramires
doaj   +1 more source

Scalar dark matter search from the extended νTHDM

Journal of High Energy Physics, 2018
We consider a neutrino Two Higgs Doublet Model (νTHDM) in which neutrinos obtain naturally small Dirac masses from the soft symmetry breaking of a global U(1) X symmetry.
Seungwon Baek, Arindam Das, Takaaki Nomura   +2 more
doaj   +1 more source