A quantum-dot-like positron state is demonstrated in the “defect-free” particles using
coincidence Doppler broadening of positron annihilation radiation. The wave functions of all …

The stability, electronic structure, and positron-electron pair momentum of body-centered-
cubic (bcc) copper, which is metastable, are theoretically studied and are compared with …

By combining positron-annihilation experiments and first-principles calculations, abundant
planar V 6 rings are identified in heavily neutron-irradiated graphite. The calculations show …

We report a first-principles method for calculating the momentum density of positron-electron
pairs in materials, which can be accurately measured, in a wide momentum range, by …

We systematically study the electronic properties of two-dimensional group-V materials, ie
phosphorene, arsenene, antimonene, and bismuthene. The density functional calculations …

The positron states in the ternary alloys Ga1− xInx N in the zincblende structure in the range
from x= 0 to x= 1 have been investigated. The electron wavefunction is calculated using the …

We carry out spin-polarized positron lifetime calculations for ferromagnetic metals using the
electron–positron density functional theory (DFT). We investigate Fe, Co, and Ni and find …

In recent years the magnetism demonstrated in undoped oxide and sulfide semiconductor
nanoparticles was intensively studied for the potential applications in nanoscale science …

Large-sized high-quality type IIa diamond crystals (8-10. ct, 10-12. mm across) have been
successfully synthesized by a temperature-gradient method under high-pressure and high …

Electron-positron momentum densities along different crystallographic directions and
positron bulk lifetime in Si 1-x Ge x alloys have been investigated within the pseudopotential …