Introduction Lasing and amplification by rare-earth doped polymer materials has been widely investigated [1-2]. In our previous work [3], a Nd(TTA)3phen doped 6-FDA epoxy film was spin-coated on an thermally oxidized wafer. The Judd-Ofelt analysis based on the absorption spectrum shows that this neodymium doped polymer material has a good potential to be used as a planar waveguide in lasers or ...

A global compilation of the neodymium isotopic composition of seawater is presented. With 880 data points, it confirms the gradual Nd increase for intermediate/deep water masses from the northwest North Atlantic, via the Austral and Indian oceans, to the Pacific. This confirms the usefulness of this tracer for studying large scale oceanic circulation. The compilation stresses the need for docu...

Neodymium is a future-oriented material due to its unique properties, and its use is increasing in various industrial fields worldwide. However, the toxicity caused by repeated exposure to this metal has not been studied in detail thus far. The present study was carried out to investigate the potential inhalation toxicity of nano-sized neodymium oxide (Nd2O3) following a 28-day repeated inhalat...

Rare-earth elements like neodymium, terbium and dysprosium are crucial to the performance of permanent magnets used in various green-energy technologies hybrid or electric cars. To address supply risk those elements, we applied machine-learning techniques design magnetic materials with reduced neodymium content without dysprosium. However, magnet intended be motors should preserved. We develope...

Ultraviolet and blue light were obtained by nonlinear frequency conversion in a random laser (RL) based on Nd0.10Y0.90Al3(BO3)4 nanocrystalline powder. RL operation at 1062 nm, due to the (4)F3/2 → (4)I11/2 transition of neodymium ions (Nd(3+)), was achieved by exciting the Nd(3+) with a tunable beam from 680 to 920 nm covering the ground state absorption transitions to the (4)F9/2, ((4)F7/2,(4...

Bimodal volcanism in the Santa Maria Province of west-central California occurred when segments of the East Pacific Rise interacted with a subduction zone along the California margin during the Early Miocene (about 17 million years ago). Isotopic compositions of neodymium and strontium as well as trace-element data indicate that these volcanic rocks were derived from a depleted-mantle (mid-ocea...

The isotopic composition of neodymium in the water column of the eastern North Atlantic near the Strait of Gibraltar has been determined for several depths. The data show that the Mediterranean outflow results in a significant shift in eNa(0) toward more radiogenic values of ln3Nd/144Nd in the water column at a 1000-m depth. This corresponds to a depth in the neighborhood of the salinity maximu...

Abstract With the increasing demand for energy-saving technologies, neodymium-iron-boron magnets have been widely utilized in high-efficiency motors. However, reserves of neodymium, which is a rare earth element (REE), are limited; thus, strategy scaling up REE supply highly required. In this study, scenario assessment was conducted to evaluate effect material recycling neodymium from final pro...