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This paper aims at reporting magnetic properties of bulk polycrystalline Bi2Sr2Ca0.8Dy0.2Cu2O8-y samples textured under a magnetic field. The microstructure of these materials is highly anisotropic and exhibits particular features needed to…

Superconductivity · Physics 2009-11-07 Ph. Vanderbemden , H. Bougrine , M. Ausloos , R. Cloots

We develop an effective medium theory for electromagnetic wave propagation through gapless non-uniform systems with dynamic chiral magnetic effect. The theory allows to calculate macroscopic-disorder-induced corrections to the values of…

Mesoscale and Nanoscale Physics · Physics 2017-03-15 Jing Ma , D. A. Pesin

The interaction between axion-like particles (ALPs) and photons induces ALP-photon oscillations in astrophysical magnetic fields, leading to spectral distortions in the $\gamma$-ray spectrum of blazars. The primary uncertainty of this…

High Energy Astrophysical Phenomena · Physics 2024-07-30 Lin-Qing Gao , Xiao-Jun Bi , Jun Li , Peng-Fei Yin

We consider the potential use of optical traps for precision measurements in atomic hydrogen (H). Using an implicit summation method, we calculate the atomic polarisability, the rates of elastic/inelastic scattering and the ionisation rate…

Atomic Physics · Physics 2023-09-28 J. P. Scott , R. M. Potvliege , D. Carty , M. P. A. Jones

The effect of a magnetic field on the dipole echo amplitude in glasses at temperatures of about 10 mK caused by nonspherical nuclei with electric quadrupole moments has been studied theoretically. It has been shown that in this case, the…

Disordered Systems and Neural Networks · Physics 2015-05-14 A. V. Shumilin , D. A. Parshin

At Central Michigan University we are developing a high-precision Penning trap mass spectrometer (CHIP-TRAP)that will focus on measurements with long-lived radioactive isotopes. CHIP-TRAP will consist of a pair of hyperbolic…

The precision of the values of a magnetic field generated by electromagnetic flux compression was investigated in ultra-high magnetic fields of up to 700 T. In an attempt to calibrate the magnetic field measured by pickup coils, precise…

Instrumentation and Detectors · Physics 2013-09-05 D. Nakamura , H. Sawabe , Y. H. Matsuda , S. Takeyama

Large-scale magnetic fields can affect scalar cosmological perturbations whose evolution is described in the conformally Newtonian gauge and within the tight coupling approximation. The magnetized curvature perturbations present after…

Astrophysics · Physics 2008-11-26 Massimo Giovannini

Acoustic traps use forces exerted by sound waves to confine and transport small objects. The dynamics of an object moving in the force landscape of an acoustic trap can be significantly influenced by the inertia of the surrounding fluid…

Soft Condensed Matter · Physics 2024-03-19 Mia C. Morrell , David G. Grier

A universal mechanism for strong magnetic-field effects of nonmagnetic organic semiconductors is presented. A weak magnetic field (less than hundreds mT) can substantially change the charge carrier hopping coefficient between two…

Mesoscale and Nanoscale Physics · Physics 2015-05-14 X. R. Wang , S. J. Xie

We present an update of results from the HPQCD collaboration on charm physics using the Highly Improved Staggered Quark action. This includes a precise determination of m_c using moments of current-current correlators combined with…

Macroscopic systems with continuous symmetries subjected to oscillatory fields have phases and transitions that are qualitatively different from their equilibrium ones. Depending on the amplitude and frequency of the fields applied,…

Statistical Mechanics · Physics 2009-11-07 I. Junier , J. Kurchan

We develop a method of spectroscopy that uses a weak static magnetic field to enable direct optical excitation of forbidden electric-dipole transitions that are otherwise prohibitively weak. The power of this scheme is demonstrated using…

Atomic Physics · Physics 2009-11-11 A. V. Taichenachev , V. I. Yudin , C. W. Oates , C. W. Hoyt , Z. W. Barber , L. Hollberg

We show that axions interacting with abelian gauge fields obtain a potential from loops of magnetic monopoles. This is a consequence of the Witten effect: the axion field causes the monopoles to acquire an electric charge and alters their…

High Energy Physics - Phenomenology · Physics 2021-09-29 JiJi Fan , Katherine Fraser , Matthew Reece , John Stout

By decomposing the CMB temperature fluctuations \emph{squared} into spherical harmonics, we can define the \emph{CMB power multipoles} as the fundamental observables to quantify any generic modulations in the CMB. This allows for simple…

Cosmology and Nongalactic Astrophysics · Physics 2014-01-09 Lingfei Wang

Photons propagating in an external magnetic field may oscillate into axions or axion-like particles (ALPs). Such oscillations will lead to characteristic features in the energy spectrum of high-energy photons from astrophysical sources that…

High Energy Astrophysical Phenomena · Physics 2022-01-26 M. Kachelriess , J. Tjemsland

How nanoscale uniaxial magnets respond to an alternating field is studied by direct numerical calculation. A nontrivial oscillation of the magnetization is found, which is analyzed in terms of the non-adiabatic transition due to the time…

Condensed Matter · Physics 2009-10-30 Seiji Miyashita , Keiji Saito , Hans De Raedt

The effect of anisotropy for fluctuations of electric currents in magnetic field is addressed within framework of quantum measurements theory. It is shown that for free fermions in uniform magnetic field the anisotropy is of the same sign…

High Energy Physics - Theory · Physics 2015-06-11 V. Shevchenko

Spectroscopic analysis of AC magnetic signal using diamond quantum magnetometry is a promising technique for inductive imaging. Conventional dynamic decoupling like XY8 provides a high sensitivity of an oscillating magnetic signal with…

Mesoscale and Nanoscale Physics · Physics 2020-07-15 Kosuke Mizuno , Hitoshi Ishiwata , Yuta Masuyama , Takayuki Iwasaki , Mutsuko Hatano

For a system of equations describing one-dimensional nonlinear oscillations in a magnetoactive plasma, we study the effect of a constant magnetic field on the breaking of oscillations. For the nonrelativistic case, a criterion for the…

Plasma Physics · Physics 2022-11-23 Olga Rozanova , Evgeniy Chizhonkov
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