scholarly journals Short-Range Quantum Magnetism of Ultracold Fermions in an Optical Lattice

Science ◽  
2013 ◽  
Vol 340 (6138) ◽  
pp. 1307-1310 ◽  
Author(s):  
D. Greif ◽  
T. Uehlinger ◽  
G. Jotzu ◽  
L. Tarruell ◽  
T. Esslinger
Keyword(s):  
Optical Lattice ◽  
Short Range ◽  
Quantum Magnetism

scholarly journals Quantum Magnetism with Multicomponent Dipolar Molecules in an Optical Lattice

2006 ◽  
Vol 96 (19) ◽  
Author(s):  
Ryan Barnett ◽  
Dmitry Petrov ◽  
Mikhail Lukin ◽  
Eugene Demler
Keyword(s):  
Optical Lattice ◽  
Quantum Magnetism ◽  
Dipolar Molecules

scholarly journals Design and Construction of Magnetic Coils for Quantum Magnetism Experiments

2019 ◽  
Author(s):  
Graciana Puentes
Keyword(s):  
Optical Lattice ◽  
Magnetic Trap ◽  
Spin Dynamics ◽  
Fold Increase ◽  
Small Mass ◽  
Magnetic Phase Transitions ◽  
Quantum Magnetism ◽  
Magnetic Coils ◽  
Tight Lattice ◽  
Design And Construction

We report on the design and construction of a spin-flip Zeeman slower, quadrupole magnetic trap, and Feshbach fields for a new machine for ultra-cold Li-7. The small mass of the Li-7 atom, and the tight lattice spacing, will enable us to achieve a 100-fold increase in tuneling rates over comparable Rb-87 optical lattice emulator experiments. These improvements should enable to access new regimes in quantum magnetic phase transitions and spin dynamics.

scholarly journals Design and Construction of Magnetic Coils for Quantum Magnetism Experiments

2020 ◽  
Vol 2 (3) ◽  
pp. 378-387
Author(s):  
Graciana Puentes
Keyword(s):  
Optical Lattice ◽  
Magnetic Trap ◽  
Spin Dynamics ◽  
Fold Increase ◽  
Small Mass ◽  
Magnetic Phase Transitions ◽  
Quantum Magnetism ◽  
Magnetic Coils ◽  
Tight Lattice ◽  
Design And Construction

We report on the design and construction of a spin-flip Zeeman slower, a quadrupole magnetic trap and a Feshbach field for a new machine for ultra-cold Li-7. The small mass of the Li-7 atom, and the tight lattice spacing, will enable to achieve a 100-fold increase in tunneling rates over comparable Rb-87 optical lattice emulator experiments. These improvements should enable to access new regimes in quantum magnetic phase transitions and spin dynamics.

Domain coarsening by grain boundary migration in ordered Ni4Mo

1986 ◽  
Vol 44 ◽  
pp. 560-561
Author(s):  
K. Vasudevan ◽  
H. P. Kao ◽  
C. R. Brooks ◽  
E. E. Stansbury
Keyword(s):  
Grain Boundary ◽  
Grain Boundaries ◽  
Short Range ◽  
Boundary Migration ◽  
Grain Boundary Migration ◽  
Rapid Cooling ◽  
Temperature Range ◽  
Fee Structure ◽  
Domain Coarsening ◽  
Boundary Reaction

The Ni4Mo alloy has a short-range ordered fee structure (α) above 868°C, but transforms below this temperature to an ordered bet structure (β) by rearrangement of atoms on the fee lattice. The disordered α, retained by rapid cooling, can be ordered by appropriate aging below 868°C. Initially, very fine β domains in six different but crystallographically related variants form and grow in size on further aging. However, in the temperature range 600-775°C, a coarsening reaction begins at the former α grain boundaries and the alloy also coarsens by this mechanism. The purpose of this paper is to report on TEM observations showing the characteristics of this grain boundary reaction.

Ordering in Ni4Mo by TEM and APFIM

1987 ◽  
Vol 45 ◽  
pp. 214-215
Author(s):  
E.A. Kenik ◽  
T.A. Zagula ◽  
M.K. Miller ◽  
J. Bentley
Keyword(s):  
Electron Irradiation ◽  
Low Temperatures ◽  
Short Range ◽  
Atom Probe ◽  
Range Order ◽  
Considerable Time ◽  
Probe Field ◽  
Disordered Phase ◽  
Transmission Electron ◽  
Diffraction Patterns

The state of long-range order (LRO) and short-range order (SRO) in Ni4Mo has been a topic of interest for a considerable time (see Brooks et al.). The SRO is often referred to as 1½0 order from the apparent position of the diffuse maxima in diffraction patterns, which differs from the positions of the LRO (D1a) structure. Various studies have shown that a fully disordered state cannot be retained by quenching, as the atomic arrangements responsible for the 1½0 maxima are present at temperatures above the critical ordering temperature for LRO. Over 20 studies have attempted to identify the atomic arrangements associated with this state of order. A variety of models have been proposed, but no consensus has been reached. It has also been shown that 1 MeV electron irradiation at low temperatures (∼100 K) can produce the disordered phase in Ni4Mo. Transmission electron microscopy (TEM), atom probe field ion microscopy (APFIM), and electron irradiation disordering have been applied in the current study to further the understanding of the ordering processes in Ni4Mo.

Dynamics and spatial order of atoms confined in an optical lattice

1997 ◽  
Vol 44 (10) ◽  
pp. 1853-1862
Author(s):  
A. GORLITZ , T. HANSCH and A. HEMMERIC
Keyword(s):  
Optical Lattice ◽  
Spatial Order

Early Education in Short-Range Historical Perspective

1969 ◽  
Vol 14 (8) ◽  
pp. 437-438
Author(s):  
CELIA STENDLER LAVATELLI
Keyword(s):  
Short Range ◽  
Historical Perspective ◽  
Early Education

Short-range order effects in amorphous FexSi1-x/Si multilayers induced by preparation conditions

1998 ◽  
Vol 08 (PR2) ◽  
pp. Pr2-175-Pr2-178 ◽  
Author(s):  
G. T. Pérez ◽  
F. H. Salas ◽  
R. Morales ◽  
L. M. Álvarez-Prado ◽  
J. M. Alameda
Keyword(s):  
Short Range ◽  
Short Range Order ◽  
Range Order ◽  
Order Effects ◽  
Preparation Conditions
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