We report on the spin textures produced by cooling unmagnetized 87Rb F = 1 spinor gases into the regime of quantum degeneracy. At low temperatures, magnetized textures form that break translational symmetry and display short-range periodic magnetic order characterized by oneor two-dimensional spatial modulations with wavelengths much smaller than the extent of the quasi-two-dimensional degenera...

The first one-proton self-excited oscillator (SEO) and one-proton feedback cooling are demonstrated. In a Penning trap with a large magnetic gradient, the SEO frequency is resolved to the high precision needed to detect a one-proton spin flip. This is after undamped magnetron motion is sideband cooled to a 14 mK theoretical limit, and despite random frequency shifts (typically larger than those...

We report the pinned/biased moment in the superlattices consisting of ferro-magnetic (FM) SrRuO 3 and antiferromgnetic (AFM) SrMnO 3. This superlat-tice system shows anisotropy and oriented pinning/biasing in the field-cooled (FC) hysteresis loop. The in-plane cooling-field provides antiferromagnetic orientations while out-of-plane cooling-field provides ferromagnetic orienta-tions to the pinne...

An ionization cooling channel is a tightly spaced lattice containing absorbers for reducing the momentum of the muon beam, rf cavities for restoring the momentum and strong solenoids for focusing the beam. Such a lattice is an essential feature of most designs for Neutrino Factories and Muon Colliders. Here, we explore three different approaches for designing ionization cooling channels with pe...

After a decade of effort, a large number of magnetic memory nanoparticles with different sizes and core/shell compositions have been developed. While the field-cooling memory effect is often attributed to particle size and distribution effects, other magnetic coupling parameters such as inter- and intra-coupling strength, exchange bias, interfacial pinned spins, and the crystallinity of the nan...

Differential thermal analysis and nuclear magnetic resonance spectroscopy experiments on whole flower buds and excised floral primordia of azalea (Rhododendron kosterianum, Schneid.) proved that supercooling is the mode of freezing resistance (avoidance) of azalea flower primordia. Increase in the linewidth of nuclear magnetic resonance spectra for water upon thawing supports the view that inju...

We study realistic 3D laser cooling of positronium (Ps) in the presence a magnetic field. Triplet and singlet states mixing due to field, dynamical Stark effect, generally produce higher annihilation rates than zero-field case. is efficient only at very low field $B\ensuremath{\lesssim}50\phantom{\rule{0.16em}{0ex}}\mathrm{mT}$ high values $B⪆0.7\phantom{\rule{0.16em}{0ex}}\phantom{\rule{0.16em...

• Improved alignment of magnetic field and fluid flow raises efficiency. Experiments prove the insensitivity device performance to profile. Overall, results show efficiency can be conserved while halving magnet volume, cost. Magnetocaloric heat pumping near room temperature, a.k.a. cooling, relies on active regenerator cycle achieve functional temperature spans realize economic societal benefit...