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Time- and Spectrally-Resolved PL Study of a Regular Array of InP/InAs/InP Core-multishell Nanowires
B. Pal, K. Goto, M. Ikezawa +4
Time- and spectrally-resolved PL from a periodic array of InP/InAs/InP core-multishell nanowires is presented. InAs layer shows multipeak PL spectra. PL decay is nonexponential and…
Nuclear spin effects in singly negatively charged InP quantum dots
Bipul Pal, Sergey Yu. Verbin, Ivan V. Ignatiev +2
Experimental investigation of nuclear spin effects on the electron spin polarization in singly negatively charged InP quantum dots is reported. Pump-probe photoluminescence measure…
Spin Lifetime in Electron-Doped InP Quantum Dots
Y. Masumoto, B. Pal, S. Oguchi +1
Spin relaxation of electrons doped in InP quantum dots was studied by means of luminescence pump-probe and Hanle measurements. Optical pumping makes spins of doped electrons to be…
Nuclear spin effects in negatively charged InP quantum dots
S. Yu. Verbin, B. Pal, M. Ikezawa +2
Effects of both the dynamic nuclear polarization (DNP) created by circularly polarized light and the fluctuations of average nuclear spin in a quantum dot (QD) on the electron spin…
Millisecond-range electron spin memory in singly-charged InP quantum dots
Bipul Pal, Michio Ikezawa, Yasuaki Masumoto +1
We report millisecond-range spin memory of resident electrons in an ensemble of InP quantum dots (QDs) under a small magnetic field of 0.1 T applied along the optical excitation ax…
Effect of nuclear spins on the electron spin dynamics in negatively charged InP quantum dots
I. V. Ignatiev, S. Yu. Verbin, I. Ya. Gerlovin +3
Kinetics of polarized photoluminescence of the negatively charged InP quantum dots in weak magnetic field is studied experimentally. Effect of both the nuclear spin fluctuations an…