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ID 19323
file
creator
Takahashi, Yoshiro
Shake, Ippei
Oda, Masahiro
Masaike, Akira
Yabuzaki, Tsutomu
Shimizu, Hirohiko M.
abstract
Protons in naphthalene and p-terphenyl doped with pentacene have been polarized up to 32% and 18%, respectively, at liquid nitrogen temperature in a magnetic field of 0.3 T by means of microwave-induced optical nuclear polarization. The polarization was measured by nuclear magnetic resonance as well as by the neutron transmission method. The relaxation time of the proton polarization at 0.0007 T and 77 K was found to be almost 3 h and the polarization enhancement reached a record value of 8 × 104. The usefulness of the method in many areas of physics and chemistry is discussed.
journal title
Physical Review Letters
volume
Volume 84
issue
Issue 1
start page
171
end page
174
date of issued
2000-01-03
publisher
American Physical Society
issn
0031-9007
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2000 The American Physical Society.
relation url
department
Graduate School of Advanced Sciences of Matter