2 research outputs found
Fates of Terrigenous Dissolved Organic Carbon in the Gulf of Maine
A significant amount of organic carbon is transported
in dissolved
form from soils to coastal oceans via inland water systems, bridging
land and ocean carbon reservoirs. However, it has been discovered
that the presence of terrigenous dissolved organic carbon (tDOC) in
oceans is relatively limited. Therefore, understanding the fates of
tDOC in coastal oceans is essential to account for carbon sequestration
through land ecosystems and ensure accurate regional carbon budgeting.
In this study, we developed a state-of-the-art modeling approach by
coupling a land-to-ocean tDOC flux simulation model and a coastal
tDOC tracking model to determine the potential fates of tDOC exported
from three primary drainage basins in the Gulf of Maine (GoM). According
to our findings, over half a year in the GoM, 56.4% of tDOC was mineralized.
Biomineralization was responsible for 90% of that amount, with the
remainder attributed to photomineralization. Additionally, 37% of
the tDOC remained suspended in the GoM, and 6.6% was buried in the
marine sediment
Emergent Intrinsic Ferromagnetism in Two-Dimensional Trigonal Rhodium Oxide
Two-dimensional (2D) van der Waals single crystals with
long-range
magnetic order are the precondition and urgent task for developing
a 2D spintronics device. In contrast to graphene and transition metal
dichalcogenides, the study of 2D single-crystal metal oxides with
intrinsic ferromagnetic properties remains a huge challenge. Here,
we report a large-size trigonal single-crystal rhodium oxide (SC-Tri-RhO2), with crystal parameters of a = b = 3.074 Ã…, c = 6.116 Ã…, and
a space group of P3Ì…m1 (164),
exhibiting strong ferromagnetism (FM) at a rather high temperature.
Furthermore, theoretical calculations suggest that the ferromagnetism
in SC-Tri-RhO2 originates from spin splitting near the
Fermi level, and the total magnetic moment is contributed mainly by
the Rh atom