This work describes the effect of the laser power and the exposure time on a sample of
octahedron‐shaped nanocrystals of cobalt (II) oxide using Raman spectroscopy. Above a …

Although Raman spectral fingerprints of Co3O4 have been well established, the infrared
spectrum of Co3O4 is less understood due to its dependence on sample morphologies and …

Antiferromagnets are considered to be a promising host material for the next generation of
magnetic storage due to their high stability and stray-field-free property. However, the …

We report for the first time the magnetic structure of the high entropy oxide (Mg0. 2Co0. 2Ni0.
2Cu0. 2Zn0. 2) O using neutron powder diffraction. This material exhibits a sluggish …

Magnetic dc susceptibility between 1.5 and 800 K, ac susceptibility and magnetization,
thermodynamic properties, temperature dependence of radio and audio-wave dielectric …

We present in full detail a newly developed formalism enabling density functional
perturbation theory (DFPT) calculations from a DFT+ U ground state. The implementation …

Ultrafast control of magnets using femtosecond light pulses attracts interest regarding
applications and fundamental physics of magnetism. Antiferromagnets are promising …

CoO has an odd number of electrons in its unit cell, and therefore is expected to be metallic.
Yet, CoO is strongly insulating owing to significant electronic correlations, thus classifying it …

The mixed valence cobalt oxide, Co3O4, is a potential candidate as a photovoltaic (PV)
material, which also exhibits intriguing chemical and catalytic properties. Here, we present a …

We report on a systematic optical investigation of wüstite. In addition, the sample under
consideration, Fe 0.93 O, has been characterized in detail by electrical transport, dielectric …