High temperature electron spin dynamics in bulk cubic GaN: Nanosecond spin lifetimes far above room-temperature

2014 ◽  
Vol 105 (18) ◽  
pp. 182404 ◽  
Author(s):  
J. H. Buß ◽  
A. Schaefer ◽  
T. Schupp ◽  
D. J. As ◽  
D. Hägele ◽  
...  
Keyword(s):  
High Temperature ◽  
Electron Spin ◽  
Room Temperature ◽  
Spin Dynamics ◽  
Cubic Gan ◽  
Temperature Electron ◽  
Electron Spin Dynamics

Room‐temperature electron spin dynamics in GaAs/AlGaAs quantum wells

1996 ◽  
Vol 68 (6) ◽  
pp. 797-799 ◽  
Author(s):  
Atsushi Tackeuchi ◽  
Yuji Nishikawa ◽  
Osamu Wada
Keyword(s):  
Quantum Wells ◽  
Electron Spin ◽  
Room Temperature ◽  
Spin Dynamics ◽  
Temperature Electron ◽  
Electron Spin Dynamics

scholarly journals Room-Temperature Electron Spin Dynamics in Free-Standing ZnO Quantum Dots

2007 ◽  
Vol 98 (18) ◽  
Author(s):  
William K. Liu ◽  
Kelly M. Whitaker ◽  
Alyssa L. Smith ◽  
Kevin R. Kittilstved ◽  
Bruce H. Robinson ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electron Spin ◽  
Room Temperature ◽  
Spin Dynamics ◽  
Free Standing ◽  
Temperature Electron ◽  
Zno Quantum Dots ◽  
Electron Spin Dynamics

Room-temperature electron spin dynamics of Ce3+ions in a YAG crystal

2017 ◽  
Vol 110 (22) ◽  
pp. 222405 ◽  
Author(s):  
P. Liang ◽  
R. R. Hu ◽  
C. Chen ◽  
V. V. Belykh ◽  
T. Q. Jia ◽  
...  
Keyword(s):  
Electron Spin ◽  
Room Temperature ◽  
Spin Dynamics ◽  
Temperature Electron ◽  
Electron Spin Dynamics

Long room-temperature electron spin lifetimes in highly doped cubic GaN

2010 ◽  
Vol 97 (6) ◽  
pp. 062101 ◽  
Author(s):  
J. H. Buß ◽  
J. Rudolph ◽  
T. Schupp ◽  
D. J. As ◽  
K. Lischka ◽  
...  
Keyword(s):  
Electron Spin ◽  
Room Temperature ◽  
Cubic Gan ◽  
Temperature Electron

Long room-temperature electron spin lifetimes in bulk cubic GaN

2011 ◽  
Author(s):  
J. H. Buß ◽  
J. Rudolph ◽  
T. Schupp ◽  
D. J. As ◽  
K. Lischka ◽  
...  
Keyword(s):  
Electron Spin ◽  
Room Temperature ◽  
Cubic Gan ◽  
Temperature Electron

Electron spin dynamics in cubic GaN

2016 ◽  
Vol 94 (23) ◽  
Author(s):  
J. H. Buß ◽  
T. Schupp ◽  
D. J. As ◽  
O. Brandt ◽  
D. Hägele ◽  
...  
Keyword(s):  
Electron Spin ◽  
Spin Dynamics ◽  
Cubic Gan ◽  
Electron Spin Dynamics

Strain dependent electron spin dynamics in bulk cubic GaN

2015 ◽  
Vol 117 (9) ◽  
pp. 093906 ◽  
Author(s):  
A. Schaefer ◽  
J. H. Buß ◽  
T. Schupp ◽  
A. Zado ◽  
D. J. As ◽  
...  
Keyword(s):  
Electron Spin ◽  
Spin Dynamics ◽  
Cubic Gan ◽  
Electron Spin Dynamics ◽  
Strain Dependent

CONTROLLING SPIN COHERENCE WITH SEMICONDUCTOR NANOSTRUCTURES

2008 ◽  
Vol 22 (01n02) ◽  
pp. 111-112
Author(s):  
DAVID D. AWSCHALOM
Keyword(s):  
Information Processing ◽  
Quantum Information ◽  
Electron Spin ◽  
Nuclear Spin ◽  
Room Temperature ◽  
Quantum Information Processing ◽  
Spin Dynamics ◽  
Spin Coherence ◽  
Electron Spin Dynamics ◽  
Coherent Spin

We present two emerging opportunities for manipulating and communicating coherent spin states in semiconductors. First, we show that semiconductor microcavities offer unique means of controlling light-matter interactions in confined geometries, resulting in a wide range of applications in optical communications and inspiring proposals for quantum information processing and computational schemes. Studies of spin dynamics in microcavities — a new and promising research field — have revealed novel effects such as polarization beats, stimulated spin scattering, and giant Faraday rotation. Here, we study the electron spin dynamics in optically-pumped GaAs microdisk lasers with quantum wells and interface-fluctuation quantum dots in the active region. In particular, we examine how the electron spin dynamics are modified by the stimulated emission in the disks, and observe an enhancement of the spin coherence time when the optical excitation is in resonance with a high quality ( Q ~ 5000) lasing mode.1 This resonant enhancement, contrary to expectations from the observed trend in the carrier recombination time, is then manipulated by altering the cavity design and dimensions. In analogy to devices based on excitonic coherence, this ability to engineer coherent interactions between electron spins and photons may provide novel pathways towards spin dependent quantum optoelectronics. In a second example, the nitrogen-vacancy (N-V) center in diamond has garnered interest as a room-temperature solid-state system not only for exploring electronic and nuclear spin phenomena but also as a candidate for spin-based quantum information processing. Spin coherence times of up to 50 microseconds have been reported for ensembles of N-V centers and a two-qubit gate utilizing the electron spin of a N-V center and the nuclear spin of a nearby C-13 atom has been demonstrated. Here, we present experiments using angle-resolved magneto-photoluminescence microscopy to investigate anisotropic spin interactions of single N-V centers in diamond at room temperature.2 Negative peaks in the photoluminescence intensity are observed as a function of both magnetic field magnitude and angle, and can be explained by coherent spin precession and anisotropic relaxation at spin-level anticrossings. Additionally, precise field alignment with the symmetry axis of a single N-V center reveals the resonant magnetic dipolar coupling of a single "bright" electron spin of an N-V center to small numbers of "dark" spins of nitrogen defects in its immediate vicinity, which are otherwise undetected by photoluminescence. Most recently, we are exploring the possibility of utilizing this magnetic dipole coupling between bright and dark spins to couple two spatially separated single N-V center spins by means of intermediate nitrogen spins. Note from Publisher: This article contains the abstract only.

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