Honeycomb layered frameworks have garnered traction in a wide range of disciplines owing
not only to their unique honeycomb configuration, but also to the plenitude of …

Simple Bi-based compounds, BiMO3, are quite interesting materials. They offer large
variations in crystal symmetries, polarity, and properties. Their chemical simplicity makes …

The unusual property of negative thermal expansion is of fundamental interest and may be
used to fabricate composites with zero or other controlled thermal expansion values. Here …

The valence state change of BiNiO3 perovskite under pressure has been investigated by a
powder neutron diffraction study and electronic-state calculations. At ambient pressure …

Negative thermal expansion (NTE) induced by simultaneous mechanisms, that is, charge
transfer and polar–nonpolar transitions, was observed for the first time in BiNi1–x Fe x O3 …

In situ epitaxial growth control of La Ni O 3 (LNO) films at high oxygen pressure has been
successfully achieved using a combination of pulsed laser deposition and high-pressure …

Perovskite-oxide Bi1–x Pb x NiO3 for 0.60≤ x≤ 0.80 was found to show a polar
orthorhombic-to-nonpolar orthorhombic phase transition accompanied by negative thermal …

The nature of triclinic to orthorhombic phase transition, at which colossal negative thermal
expansion is observed, and the magnetic ordering of Bi 1− x La x NiO 3 have been …

Motivated by the colossal negative thermal expansion recently found in BiNiO 3, the valence
transition accompanied by the charge transfer between the Bi and Ni sites is theoretically …

To investigate the change in the electronic structure of BiNiO 3 accompanied by metal-
insulator (MI) transition, we measured x-ray absorption spectroscopy (XAS) spectra at the Ni …