Magnetic dipole ≈ Magnetic dipole
View article: Measurement of the Permanent Electric Dipole Moment of the Neutron
Measurement of the Permanent Electric Dipole Moment of the Neutron Open
We present the result of an experiment to measure the electric dipole moment (EDM) of the neutron at the Paul Scherrer Institute using Ramsey's method of separated oscillating magnetic fields with ultracold neutrons. Our measurement stands…
View article
Electric dipole moments of atoms, molecules, nuclei, and particles Open
A permanent electric dipole moment (EDM) of a particle or system is a separation of charge along its angular momentum axis and is a direct signal of T violation and, assuming CPT symmetry, CP violation. For over 60 years EDMs have been stu…
View article
Magnetic Order and Symmetry in the 2D Semiconductor CrSBr Open
The advent of two-dimensional (2D) magnets offers unprecedented control over electrons and spins. A key factor in determining exchange coupling and magnetic order is symmetry. Here, we apply second harmonic generation (SHG) to probe a 2D m…
View article
Dipolar physics: a review of experiments with magnetic quantum gases Open
Since the achievement of quantum degeneracy in gases of chromium atoms in 2004, the experimental investigation of ultracold gases made of highly magnetic atoms has blossomed. The field has yielded the observation of many unprecedented phen…
View article
Sensing with toroidal metamaterial Open
Localized electromagnetic excitation in the form of toroidal dipoles has recently been observed in metamaterial systems. The origin of the toroidal dipole lies in the currents flowing on the surface of a torus. Thus, the exotic toroidal ex…
View article
Gyrotropic Magnetic Effect and the Magnetic Moment on the Fermi Surface Open
The current density j^{B} induced in a clean metal by a slowly-varying magnetic field B is formulated as the low-frequency limit of natural optical activity, or natural gyrotropy. Working with a multiband Pauli Hamiltonian, we obtain from …
View article
Extremely high -factor metamaterials due to anapole excitation Open
We demonstrate that ideal anapole metamaterials have infinite Q-factor. We have designed and fabricated a metamaterial consisting of planar metamolecules which exhibit anapole behavior in the sense that the electric dipole radiation is alm…
View article
A new approach for measuring the muon anomalous magnetic moment and electric dipole moment Open
This paper introduces a new approach to measure the muon magnetic moment\nanomaly $a_{\\mu} = (g-2)/2$, and the muon electric dipole moment (EDM)\n$d_{\\mu}$ at the J-PARC muon facility. The goal of our experiment is to measure\n$a_{\\mu}$…
View article
Laser Cooled YbF Molecules for Measuring the Electron’s Electric Dipole Moment Open
We demonstrate one-dimensional sub-Doppler laser cooling of a beam of YbF molecules to 100 μK. This is a key step towards a measurement of the electron's electric dipole moment using ultracold molecules. We compare the effectiveness of mag…
View article
Terahertz All-Dielectric Magnetic Mirror Metasurfaces Open
We demonstrate an all-dielectric metasurface operating in the terahertz band that is capable of engineering a reflected beam's spatial properties with high efficiency. The metasurface is formed from an array of silicon cube resonators whic…
View article
Role of the Transition Dipole Amplitude and Phase on the Generation of Odd and Even High-Order Harmonics in Crystals Open
Since the first observation of odd and even high-order harmonics generated from ZnO crystals in 2011, the dependence of the harmonic yields on the orientation of the laser polarization with respect to the crystal axis has never been proper…
View article
Long-Lived Ultracold Molecules with Electric and Magnetic Dipole Moments Open
We create fermionic dipolar ^{23}Na^{6}Li molecules in their triplet ground state from an ultracold mixture of ^{23}Na and ^{6}Li. Using magnetoassociation across a narrow Feshbach resonance followed by a two-photon stimulated Raman adiaba…
View article
Ideal Magnetic Dipole Scattering Open
We introduce the concept of tunable ideal magnetic dipole scattering, where a nonmagnetic nanoparticle scatters light as a pure magnetic dipole. High refractive index subwavelength nanoparticles usually support both electric and magnetic d…
View article
A Toroidal Metamaterial Switch Open
Toroidal dipole is a localized electromagnetic excitation that plays an important role in determining the fundamental properties of matter due to its unique potential to excite nearly nonradiating charge–current configuration. Toroidal dip…
View article
Current Systems in the Earth's Magnetosphere Open
The basic structure and dynamics of the primary electric current systems in the Earth's magnetosphere are presented and discussed. In geophysics, the word current is used to describe the flow of mass from one location to another, and its a…
View article
Theory and applications of toroidal moments in electrodynamics: their emergence, characteristics, and technological relevance Open
Dipole selection rules underpin much of our understanding in characterization of matter and its interaction with external radiation. However, there are several examples where these selection rules simply break down, for which a more sophis…
View article
A NICER View of PSR J0030+0451: Evidence for a Global-scale Multipolar Magnetic Field Open
Recent modeling of Neutron Star Interior Composition Explorer observations of thermal X-ray pulsations from the surface of the isolated millisecond pulsar PSR J0030+0451 suggests that the hot emitting regions on the pulsar’s surface are fa…
View article
Multimode directionality in all-dielectric metasurfaces Open
We demonstrate that spectrally diverse multiple magnetic dipole resonances can be excited in all-dielectric structures lacking rotational symmetry, in contrast to conventionally used spheres, disks, or spheroids. Such multiple magnetic res…
View article
Generalized Magnetic Mirrors Open
We propose generalized magnetic mirrors that can be achieved by excitations of sole electric resonances. Conventional approaches to obtain magnetic mirrors rely heavily on exciting the fundamental magnetic dipoles, whereas here we reveal t…
View article
A storage ring experiment to detect a proton electric dipole moment Open
A new experiment is described to detect a permanent electric dipole moment of the proton with a sensitivity of 10−29 e ⋅ cm by using polarized “magic” momentum 0.7 GeV/c protons in an all-electric storage ring. Systematic errors relevant t…
View article
Beyond Chiral Organic (p-Block) Chromophores for Circularly Polarized Luminescence: The Success of d-Block and f-Block Chiral Complexes Open
Chiral molecules are essential for the development of advanced technological applications in spintronic and photonic. The best systems should produce large circularly polarized luminescence (CPL) as estimated by their dissymmetry factor (g…
View article
Testing the axial dipole hypothesis for the Moon by modeling the direction of crustal magnetization Open
Orbital magnetic field data show that portions of the Moon's crust are strongly magnetized, and paleomagnetic data of lunar samples suggest that Earth strength magnetic fields could have existed during the first several hundred million yea…
View article
SMC X-3: the closest ultraluminous X-ray source powered by a neutron star with non-dipole magnetic field Open
Aims. The magnetic field of accreting neutron stars determinestheir overall behavior including the maximum possible luminosity. Somemodels require an above-average magnetic field strength(≳1013 G) in order to explain super-Eddington massac…
View article
Dynamics of test particles around a Bardeen black hole surrounded by perfect fluid dark matter Open
We study the dynamics of (i) neutral test particles, (ii) magnetically charged test particles, and (iii) test magnetic dipole around a regular Bardeen black hole surrounded by perfect fluid dark matter (PFDM). It has been shown how the mag…
View article
The Dipole Magnetic Field and Spin-down Evolutions of the High Braking Index Pulsar PSR J1640–4631 Open
In this work, we interpreted the high braking index of PSR J1640−4631 with a combination of the magneto-dipole radiation and dipole magnetic field decay models. By introducing a mean rotation energy conversion coefficient , the ratio of th…
View article
Magnetic field evolution in magnetar crusts through three-dimensional simulations Open
Significance The observed diversity of magnetars indicates that their magnetic topology is more complicated than a simple dipole. Current models of their radiative emission, based on axially symmetric simulations, require the presence of a…
View article
The magnetic early B-type stars – III. A main-sequence magnetic, rotational, and magnetospheric biography Open
Magnetic confinement of stellar winds leads to the formation of magnetospheres, which can be sculpted into centrifugal magnetospheres (CMs) by rotational support of the corotating plasma. The conditions required for the CMs of magnetic ear…
View article
Ferrotoroidic ground state in a heterometallic {Cr<sup>III</sup>Dy<sup>III</sup> <sub>6</sub>} complex displaying slow magnetic relaxation Open
© 2017 The Author(s). Toroidal quantum states are most promising for building quantum computing and information storage devices, as they are insensitive to homogeneous magnetic fields, but interact with charge and spin currents, allowing t…
View article
Radiative heat transfer in many-body systems: Coupled electric and magnetic dipole approach Open
The many-body radiative heat transfer theory [P. Ben-Abdallah, S.-A. Biehs, and K. Joulain, Phys. Rev. Lett. 107, 114301 (2011)] only considered the contribution from the electric dipole moment. For metal particles, however, the magnetic d…
View article
Search for Axionlike Dark Matter Using Solid-State Nuclear Magnetic Resonance Open
We report the results of an experimental search for ultralight axionlike dark matter in the mass range 162-166 neV. The detection scheme of our Cosmic Axion Spin Precession Experiment is based on a precision measurement of ^{207}Pb solid-s…