Archive

This 2025 review examines claims of biological effects from weak, nonthermal RF magnetic fields and evaluates whether such effects could be mediated by the radical pair mechanism (RPM). It reports that aligning RPM theory with low-level experimental observations remains difficult and that many experimental findings…

This engineering/physical chemistry study develops an analytical model and uses computer simulations to describe the electric field in oxide films during thermal metal oxidation. It reports that the electrostatic potential drop across the bulk oxide is often limited to about kBT/e, suggesting most of a larger overall…

This engineering study describes a method to improve the sensitivity of Faraday-effect-based heterodyning fiber laser sensors for magnetic field measurement. It reports an inverse relationship between magnetic-field sensitivity and intra-cavity linear birefringence, supported by theory and experimental birefringence…

This paper theoretically investigates magnetic-field-induced phenomena in bent-core nematic liquid crystals, focusing on how molecular biaxiality modifies the response. Using molecular field and Landau theory, it reproduces reported experimental trends such as an enhanced Cotton-Mouton effect and an increase in the…

This theoretical/physics study analyzes the spectrum of electron-phonon complexes in monolayer graphene in a perpendicular quantizing magnetic field. It reports that near the threshold of optical phonon emission, standard perturbation theory fails for calculating the scattering amplitude. The authors describe new…

This experimental and modeling study examined pulsed electric field (PEF) permeabilization in several fruit and vegetable tissues at 293 K using 1000 μs pulses and field strengths of 400 and 1000 V·cm(-1). While electroporation theory predicts greater damage in tissues with larger cells, the authors report this…

This paper theoretically investigates zero- and finite-temperature behavior of an anisotropic antiferromagnetic Heisenberg XXZ spin-1/2 chain under a transverse magnetic field, focusing between the factorizing and critical fields. It reports an entanglement phase transition at the factorizing field where entanglement…

This paper analyzes anomalous magnetic-field and temperature dependences observed in MgB(2) superconductivity experiments using a two-order-parameter Ginzburg-Landau theory with two length scales. The authors numerically solve the nonlinear Ginzburg-Landau equations for arbitrary applied fields between Hc1 and Hc2 to…

This theoretical paper analyzes consequences of nonuniqueness of the external magnetic field B(r) in spin-polarized density functional theory. It reports that for ground states the energy functional is not differentiable with respect to spin density, but one-sided derivatives can exist. The work links these one-sided…

This paper studies the spin-glass transition in a magnetic field using a diluted one-dimensional long-range Ising model with distance-dependent bond probability. The authors report evidence for a spin-glass transition in a magnetic field both within and beyond the mean-field regime. They also report such evidence for…

This paper proposes metallic nanowires as complementary structures to metallic nanogaps for enhancing magnetic fields. It reports magnetic field enhancement up to a factor of 300 and presents a surface-impedance-based analytic theory that is numerically confirmed. The authors also report that, in the sub-skin-depth…

This paper presents a theoretical treatment of nanoparticle retention in quadrupole magnetic field-flow fractionation (QMgFFF) using a helical separation channel. It defines the retention ratio as the ratio of transit times for non-retained versus retained material. Equations are derived for angular and longitudinal…

This laboratory study experimentally examined aggregation of nonmagnetic particles in a magnetic fluid layer under a rotating magnetic field. Particles formed two-dimensional clusters that repeatedly aggregated into larger clusters, producing a broad distribution of cluster sizes. The dynamics were described as…

This paper reports analytical theory on how a small solenoidal magnetic field affects an ion-beam pulse propagating through background plasma. The authors predict enhanced self-electric and self-magnetic fields under a resonance-like condition (omegace ≈ omegape beta_b) attributed to a dynamo effect. The combined…

This theoretical paper investigates Beresinskii-Kosterlitz-Thouless vortex physics in two-dimensional superconductors under an external magnetic field using a sine-Gordon field-theory approach. The authors state that the model yields a straightforward definition of field-induced magnetization. They also report that…