scholarly journals First observation of trapped high-field seeking ultracold neutron spin states

2011 ◽  
Vol 704 (5) ◽  
pp. 456-460 ◽  
Author(s):  
M. Daum ◽  
P. Fierlinger ◽  
B. Franke ◽  
P. Geltenbort ◽  
L. Goeltl ◽  
...  
Keyword(s):  
High Field ◽  
Ultracold Neutron ◽  
Neutron Spin ◽  
Spin States

scholarly journals A high-field adiabatic fast passage ultracold neutron spin flipper for the UCNA experiment

2012 ◽  
Vol 83 (7) ◽  
pp. 073505 ◽  
Author(s):  
A. T. Holley ◽  
L. J. Broussard ◽  
J. L. Davis ◽  
K. Hickerson ◽  
T. M. Ito ◽  
...  
Keyword(s):  
High Field ◽  
Ultracold Neutron ◽  
Neutron Spin ◽  
Adiabatic Fast Passage ◽  
Fast Passage ◽  
Spin Flipper

scholarly journals A magnetic trap for high-field seeking neutron spin states

2015 ◽  
Vol 741 ◽  
pp. 316-319 ◽  
Author(s):  
Th. Brenner ◽  
S. Chesnevskaya ◽  
P. Fierlinger ◽  
P. Geltenbort ◽  
E. Gutsmiedl ◽  
...  
Keyword(s):  
High Field ◽  
Magnetic Trap ◽  
Neutron Spin ◽  
Spin States

Coupling between neutron spin states in a proposed new spin directional coupler

2001 ◽  
Vol 237 (3) ◽  
pp. 302-308 ◽  
Author(s):  
S.P. Pogossian ◽  
H. Le Gall ◽  
J. Ben-Youssef ◽  
A. Menelle
Keyword(s):  
Directional Coupler ◽  
Neutron Spin ◽  
Spin States

Long-Lived Nuclear Spin States in High-Field Solution NMR

2004 ◽  
Vol 126 (20) ◽  
pp. 6228-6229 ◽  
Author(s):  
Marina Carravetta ◽  
Malcolm H. Levitt
Keyword(s):  
Nuclear Spin ◽  
High Field ◽  
Solution Nmr ◽  
Spin States ◽  
Field Solution

EXCITON SPIN STATES IN NANOCRYSTAL QUANTUM DOTS REVEALED BY SPIN-POLARIZED RESONANT PHOTOLUMINESCENCE AND RAMAN SPECTROSCOPY

2004 ◽  
Vol 18 (27n29) ◽  
pp. 3769-3774 ◽  
Author(s):  
MADALINA FURIS ◽  
TODD BARRICK ◽  
PATRICK ROBBINS ◽  
SCOTT A. CROOKER ◽  
MELISSA PETRUSKA ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Quantum Dots ◽  
Magnetic Fields ◽  
High Field ◽  
Polarized Light ◽  
Zero Magnetic Field ◽  
Spin States ◽  
Circularly Polarized Light ◽  
Spin Polarized ◽  
Nanocrystal Quantum Dots

We performed spin-polarized resonant Raman and resonant photoluminescence excitation spectroscopy (also known as "fluorescence line narrowing") on ZnS -capped CdSe nanocrystal quantum dots in high magnetic fields to 33 Tesla and temperatures down to 1.7K, which allows detailed investigation of the excitonic spin states. In these experiments, spin-polarized electrons and holes are resonantly injected by circularly polarized light into colloidal quantum dots of specific size, using a narrowband tunable dye laser and a fiber-coupled probe that is specially-designed for use in high-field magnets. In addition to the expected broad features associated with excitonic recombination and Raman-like peaks associated with quantized acoustic phonons, the photoluminescence spectra measured at magnetic fields larger than 10 Tesla develop a sharp peak, which moves roughly linearly with applied magnetic field. Further, the energy of this high-field peak varies systematically as a function of nanocrystal size. However, unlike typical electron spin flip transitions, the mode energy extrapolates to a finite value at zero magnetic field, suggesting the existence of an additional size-dependent exchange mechanism.

Study of segregation in La1.8Sr0.2CuO4 superconductor by STEM-EDS microanalysis

1987 ◽  
Vol 45 ◽  
pp. 54-55
Author(s):  
T. F. Kelly ◽  
P. J. Lee ◽  
E. E. Hellstrom ◽  
D. C. Larbalestier
Keyword(s):  
Rare Earth ◽  
High Field ◽  
Transport Current ◽  
Total Thickness ◽  
New Class ◽  
Ceramic Superconductors ◽  
Current Densities ◽  
Group Ii ◽  
Eds Microanalysis

Recently there has been much excitement over a new class of high Tc (>30 K) ceramic superconductors of the form A1-xBxCuO4-x, where A is a rare earth and B is from Group II. Unfortunately these materials have only been able to support small transport current densities 1-10 A/cm2. It is very desirable to increase these values by 2 to 3 orders of magnitude for useful high field applications. The reason for these small transport currents is as yet unknown. Evidence has, however, been presented for superconducting clusters on a 50-100 nm scale and on a 1-3 μm scale. We therefore planned a detailed TEM and STEM microanalysis study in order to see whether any evidence for the clusters could be seen.A La1.8Sr0.2Cu04 pellet was cut into 1 mm thick slices from which 3 mm discs were cut. The discs were subsequently mechanically ground to 100 μm total thickness and dimpled to 20 μm thickness at the center.

High-field magnetoluminescence of ZnSe quantum wires

1998 ◽  
Vol 184-185 (1-2) ◽  
pp. 339-342 ◽  
Author(s):  
L Parthier
Keyword(s):  
High Field ◽  
Quantum Wires

HIGH FIELD N. M. R. IN Cu(NO3)2 2 1/2 H2O BELOW 1°K

1971 ◽  
Vol 32 (C1) ◽  
pp. C1-943-C1-945
Author(s):  
M. W. van TOL ◽  
M. MATSUURA ◽  
N. J. POULIS
Keyword(s):  
High Field
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