Mixed-valent iron [Fe (II)-Fe (III)] minerals such as magnetite and green rust have received a
significant amount of attention over recent decades, especially in the environmental …

This review encompasses the story of the Verwey transition in magnetite over a period of
about 90 years, from its discovery up to the present. Despite this long period of thorough …

Publisher Summary This chapter discusses the progress in spinel ferrite research. A large
number of oxides with a metal–oxygen ratio of 0.75 as composition is known to crystallize …

Titanium substitution has a significant effect on the temperature dependence (5–300 K) of
low-temperature saturation remanence and of initial susceptibility in synthetic and natural …

In environmental, soil, and sediment magnetism, it is important to be able to estimate the
degree of oxidation of magnetite grains. We report a new method for finding the oxidation …

We have carried out a systematic experimental investigation to address the question why
thin films of Fe 3 O 4 (magnetite) generally have a very broad Verwey transition with lower …

The relative conductivity of Fe 3 O 4 single crystals very close to ideal stoichiometry has
been measured as a function of pressure up to P= 16 GPa and in the temperature range of …

Tephras are highly valuable for achieving precise chronologies and secure correlations for
sedimentary sequences. Rock magnetic investigations provide a simple, rapid tool for tephra …

Structural and magnetic properties of three high entropy oxide spinels (Cr, Mn, Fe, Co, Ni) 3
O 4,(Cr, Mn, Fe, Co) 3 O 4 and (Cr, Mn, Fe, Ni) 3 O 4 were investigated in a wide …

In the present work, a combination of various techniques is utilized for the study of nano-
mineralogy and-geochemistry of high-grade karst-type bauxite (Al-rich and Fe-depleted …