We present a combined experimental (STM/scanning tunneling spectroscopy) and theoretical (density functional theory) study on the deposition of Au and Pd metal atoms on FeO/Pt(111) ultrathin films. We show that while the Pd atoms are only slightly oxidized, the Au atoms form positive ions upon deposition, at variance to a charge transfer into the Au atoms as observed for MgO/Ag(100). The modula...

19 Iron is essential for pathogen survival, virulence, and colonization. Feo is suggested to function as 20 the ferrous iron (Fe) transporter. The enterobacterial Feo system is composed of 3 proteins: FeoB is 21 the indispensable component and is a large membrane protein likely to function as a permease; FeoA is 22 a small src-homology 3 (SH3) domain protein that interacts with FeoB; FeoC is a ...

Introduction: Knowledge of the surface mineralogy and chemistry of the crust is central to understanding the evolution of the lunar crust. Using the 5-band ultravioletvisible (UVVIS) Clementine data set, Tompkins and Pieters [1] showed that approximate mineralogy could be determined from Clementine data and analyzed 109 impact craters detailing the approximate mineralogy, or rocktypes, of their...

In order to provide a structural basis for a physical understanding of exchange bias in metal/magnetic-oxide interfaces, we have determined the structure of the Fe/NiO(001) interface by means of x-ray absorption spectroscopy and ab initio density functional theory calculations. A Fe-Ni alloyed phase on top of an interfacial FeO planar layer is formed. The FeO layer exhibits a 7% expanded interl...

Iron oxides are fundamental components of planet-forming materials. Understanding the Fe-O system's behavior and properties under high pressure can help us identify many new phases states possible in exoplanetary interiors, especially terrestrial ones. Using adaptive genetic algorithm (AGA), we investigate structure iron for a wide range stoichiometries ($0.25\leq x_O \leq 0.8$) at 1, 2, 3 TPa....

Extreme pressures and temperatures are known to drastically affect the chemistry of iron oxides resulting in numerous compounds forming homologous series $n$FeO$\cdot m$Fe$_2$O$_3$ appearance FeO$_2$. Here, based on results \emph{in situ} single-crystal X-ray diffraction, M\"ossbauer spectroscopy, absorption DFT+dynamical mean-field theory calculations we demonstrate that high pressure cubic Fe...

The title compound, penta-iron tripraseodymium dodeca-oxide (PrIG), has an iron garnet structure. There are two Fe site symmetries. One of the Fe atoms is coordinated by six O atoms, forming a slightly distorted octa-hedron, and has site symmetry. The other Fe atom is coordinated by four O atoms, forming a slightly distorted tetra-hedron, and has site symmetry. FeO(6) octa-hedra and FeO(4) tetr...