Recently, strong pulsed gradients with strengths of up to three hundred seventy Gauss per centimeter per ampere have been achieved along with a unit allowing for two degree rotational adjustments to a solid state nuclear magnetic resonance sample. A spatial magnetization grating ranging from one millimeter to one tenth of a nanometer can be readily produced allowing for the study of spin dynamics at this short scale. The apparatus also allows for the study of spin physics as a function of orientation. Because the Hamiltonian of the system is exactly known and controllable via multiple pulse coherent averaging methods, we expect that simulations of multi body dynamics can be readily performed. In addition, the experimental improvements of the new NMR probe allows for larger sample size and greater feasibility for refocusing the grating. In addition to providing the second ever direct measurement of spin diffusion rates in a homogeneous solid, this work will also provide the first experimental measurement of spin-spin diffusion phenomenon. Since the Hamiltonian of the solid state system in study is accurately described, these measurements will also form the basis for testing multi-body calculations.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR000995-25
Application #
6355152
Study Section
Project Start
2000-05-01
Project End
2001-04-30
Budget Start
1998-10-01
Budget End
1999-09-30
Support Year
25
Fiscal Year
2000
Total Cost
$1,070
Indirect Cost
Name
Massachusetts Institute of Technology
Department
Type
DUNS #
City
Cambridge
State
MA
Country
United States
Zip Code
02139
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