Retarded Green's-Function Calculation of Magnetic Resonance Relaxation Time TI for Rotating Molecules or Atomic Groups in Solids

dc.creatorMartín-Landrove, Miguel
dc.creatorMoreno, José Alí
dc.date2017-11-22T17:03:33Z
dc.date2017-11-22T17:03:33Z
dc.date1992
dc.date.accessioned2022-10-28T01:28:40Z
dc.date.available2022-10-28T01:28:40Z
dc.identifierMartín-Landrove, M., & Moreno, J. (1992). Retarded Green's-Function Calculation of Magnetic Resonance Relaxation Time TI for Rotating Molecules or Atomic Groups in Solids. Journal of Magnetic Resonance, 14-23
dc.identifier1090-7807
dc.identifierhttp://hdl.handle.net/10872/17193
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/4950708
dc.descriptionThe two-times Green’s-function formalism is applied to the calculation of the NMR relaxation time T, for systems of hindered-rotating molecules or atomic groups in solids or solid surfaces at very low temperature. The rotation of the molecules is quantummechanically considered as one-phonon induced transitions between the hindered-rotator levels. The nuclear spin system is assumed to be coupled to the bath of thermal phonons through the phonon-rotation interaction. The longitudinal relaxation rate is determined by taking the lowest order approximation for the pole structure of the retarded Green’s function; in this way a multiexponential behavior due to the different nuclear spin species present in the molecule or atomic group is obtained.
dc.languageen
dc.publisherJournal of Magnetic Resonance
dc.subjectGreen's Functions
dc.subjectMagnetic Relaxation Time T1
dc.subjectRotating Molecules
dc.subjectAtomic Groups
dc.subjectMagnetic Resonance
dc.titleRetarded Green's-Function Calculation of Magnetic Resonance Relaxation Time TI for Rotating Molecules or Atomic Groups in Solids
dc.typeArticle


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