336 citations · 818 across the 17 of their papers we have counts for
17 papers
Coupling of the triplet states of a negatively charged exciton in a quantum dot with the spin of a magnetic atom
L. Besombes, S. Ando, S. Kuroda +1
Two electrons in a quantum dot (QD) can form triplet states. We analyze the exchange coupling of the triplet states of the negatively charged exciton in a QD (X, two electrons…
Ferroic Berry Curvature Dipole in a Topological Crystalline Insulator at Room Temperature
T. Nishijima, T. Watanabe, H. Sekiguchi +5
The physics related to Berry curvature is now a central research topic in condensed matter physics. The Berry curvature dipole (BCD) is a significant and intriguing condensed matte…
Spin dynamics of positively charged excitons in Cr-doped quantum dots probed by resonant photoluminescence
V. Tiwari, M. Morita T. Inoue, S. Ando S. Kuroda +2
We study the dynamics of the spin system that consist of a positively charged II-VI semiconductor quantum dot doped with a single Cr ion. The resonant photoluminescence (PL) of…
Cr doping-induced ferromagnetism in the spin-glass Cd1-xMnxTe studied by x-ray magnetic circular dichroism
V. K. Verma, S. Sakamoto, K. Ishikawa +7
The prototypical diluted magnetic semiconductor Cd1-xMnxTe is a spin glass (x<0.6) or an antiferromagnet (x>0.6), but becomes ferromagnetic upon doping with a small amount of Cr at…
A hole-Cr nano-magnet in a semiconductor quantum dot
V. Tiwari, M. Arino, S. Gupta +7
We study a new diluted magnetic semiconductor system based on the spin of the ionized acceptor Cr. We show that the negatively charged Cr ion, an excited state of the Cr in…
Radio-frequency stress-induced modulation of CdTe/ZnTe quantum dots
V. Tiwari, K. Makita, M. Arino +6
We demonstrate radio-frequency tuning of the energy of individual CdTe/ZnTe quantum dots (QDs) by Surface Acoustic Waves (SAWs). Despite the very weak piezoelectric coefficient of…