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Cho, Hyungjoon
Biomedical Imaging Science and Engineering Lab(BISE)
Research Interests
  • Imaging tumor microenvironments, susceptibility contrast based MR structural imaging, ultra fast acquisitions of dynamic MR, algorithm/Hardware development for magnetic particle imaging

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Decay of highly correlated spin states in a dipolar-coupled solid: NMR study of CaF2

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dc.contributor.author Cho, Hyungjoon ko
dc.contributor.author Cappellaro, Paola ko
dc.contributor.author Cory, David G. ko
dc.contributor.author Ramanathan, Chandrasekhar ko
dc.date.available 2015-03-05T01:38:34Z -
dc.date.created 2014-10-14 ko
dc.date.issued 2006-12 -
dc.identifier.citation PHYSICAL REVIEW B, v.74, no.22, pp.1 - 7 ko
dc.identifier.issn 1098-0121 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/10784 -
dc.identifier.uri http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=33846286064 ko
dc.description.abstract We have measured the decay of NMR multiple quantum coherence intensities both under the internal dipolar Hamiltonian as well as when this interaction is effectively averaged to zero, in the cubic calcium fluoride (CaF2) spin system and the pseudo-one-dimensional system of fluoroapatite. In calcium fluoride the decay rates depend both on the number of correlated spins in the cluster, as well as on the coherence number. For smaller clusters, the decays depend strongly on coherence number, but this dependence weakens as the size of the cluster increases. The same scaling was observed when the coherence distribution was measured in both the usual Zeeman or z basis and the x basis. The coherence decay in the one-dimensional fluoroapatite system did not change significantly as a function of the multiple quantum growth time, in contrast to the calcium fluoride case. While the growth of coherence orders is severely restricted in this case, the number of correlated spins should continue to grow, albeit more slowly. All coherence intensities were observed to decay as Gaussian functions in time. In all cases the standard deviation of the observed decay appeared to scale linearly with coherence number. ko
dc.description.statementofresponsibility open -
dc.language ENG ko
dc.publisher AMERICAN PHYSICAL SOC ko
dc.subject MULTIPLE-QUANTUM DYNAMICS ko
dc.subject LIOUVILLE SPACE ko
dc.subject DECOHERENCE ko
dc.subject COMPUTERS ko
dc.subject DISSIPATION ko
dc.subject RELAXATION ko
dc.subject COHERENCE ko
dc.subject REGISTER ko
dc.subject CLUSTERS ko
dc.subject CHAINS ko
dc.title Decay of highly correlated spin states in a dipolar-coupled solid: NMR study of CaF2 ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-33846286064 ko
dc.identifier.wosid 000243195600070 ko
dc.type.rims ART ko
dc.description.wostc 18 *
dc.description.scopustc 23 *
dc.date.tcdate 2015-12-28 *
dc.date.scptcdate 2015-11-04 *
dc.identifier.doi 10.1103/PhysRevB.74.22443 ko
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