Results 61 to 70 of about 1,704 (228)

The Interplay of Magnetic Order with the Electronic Scattering and Crystal‐Field Effects in a Metallic Ferromagnet

open access: yesAdvanced Science, EarlyView.
The interplay between magnetic ordering and crystal electric field (CEF) excitations plays a pivotal role in defining the low‐energy electrodynamics of quantum materials. By probing the temperature‐dependent THz conductivity in a rare‐earth‐based metallic ferromagnet, we uncover a microscopic connection between localized and itinerant electrons ...
Payel Shee   +11 more
wiley   +1 more source

Holography for Sp(2N c ) gauge dynamics: from composite Higgs to technicolour

open access: yesJournal of High Energy Physics
We study Sp(2N c ) gauge dynamics with two Dirac fermion flavours in the fundamental representation. These strongly coupled systems underlie some composite Higgs models with a global symmetry breaking pattern SU(4)→Sp(4), leading to a light quartet of ...
Johanna Erdmenger   +3 more
doaj   +1 more source

Anomalous mass dimensions and Schwinger–Dyson equations boundary condition

open access: yesPhysics Letters B, 2017
Theories with large mass anomalous dimensions (γm) have been extensively studied because of their deep consequences for models where the scalar bosons are composite.
A. Doff, A.A. Natale
doaj   +1 more source

Next-level composite fermions [PDF]

open access: yesNature Physics, 2019
A rich pattern of fractional quantum Hall states in graphene double layers can be naturally explained in terms of two-component composite fermions carrying both intra- and inter-layer vortices.
Gábor A. Csáthy, Jainendra K. Jain
openaire   +2 more sources

Accelerated Discovery of Topological Conductors for Nanoscale Interconnects

open access: yesAdvanced Science, EarlyView.
Copper interconnects exhibit a sharp increase in resistivity at ultra‐scaled dimensions, threatening continued miniaturization of integrated circuits. The gapless surface states of topological semimetals provide conduction channels resistant to localization.
Alexander C. Tyner   +7 more
wiley   +1 more source

Evolution of an interacting fermion–antifermion pair in the near-horizon of the BTZ black hole

open access: yesEuropean Physical Journal C: Particles and Fields
In this study, we investigate the evolution of a composite system comprising a fermion–antifermion pair engaged in Cornell-type non-minimal interaction in the near-horizon region of a BTZ black hole.
Abdullah Guvendi
doaj   +1 more source

Molecular interferometers: effects of Pauli principle on entangled-enhanced precision measurements

open access: yesNew Journal of Physics, 2019
Feshbach molecules forming a Bose–Einstein condensate (BEC) behave as non-ideal bosonic particles due to their underlying fermionic structure. We study the observable consequences of the fermion exchange interactions in the interference of molecular BECs
P Alexander Bouvrie   +3 more
doaj   +1 more source

Electroweak SU(2)L × U(1)Y model with strong spontaneously fermion-mass-generating gauge dynamics

open access: yesJournal of High Energy Physics, 2021
Higgs sector of the Standard model (SM) is replaced by quantum flavor dynamics (QFD), the gauged flavor SU(3) f symmetry with scale Λ. Anomaly freedom requires addition of three ν R .
Petr Beneš, Jiří Hošek, Adam Smetana
doaj   +1 more source

Spectroscopic Evidence of Edge‐Localized States in an Antiferromagnet Topological Insulator NdBi

open access: yesAdvanced Science, EarlyView.
Using spin‐polarized scanning tunneling microscopy (STM) in conjunction with quasiparticle interference, we successfully identify distinct signatures of the ferromagnetic and antiferromagnetic terminations in NdBi, a rare‐earth monopnictide exhibiting non‐trivial topology and magnetism. We demonstrate that step edges on ferromagnetic surfaces host well‐
Avior Almoalem   +8 more
wiley   +1 more source

Modelling top partner-vector resonance phenomenology

open access: yesNuclear Physics B, 2019
We have analysed the observable consequences of the interactions of spin-1 resonances coupled to the invariant fermionic currents that arise in an SO(5) Composite Higgs set-up.
Juan Yepes, Alfonso Zerwekh
doaj   +1 more source

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