Topic
Nuclear quadrupole resonance
About: Nuclear quadrupole resonance is a research topic. Over the lifetime, 3531 publications have been published within this topic receiving 38801 citations. The topic is also known as: Nuclear quadrupole resonance spectroscopy & NQR.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this article, the authors report In-NQR and Co-NMR experiments of CeCoIn 5 that undergoes a superconducting transition with a record high T c = 2.3 K to date among heavy-fermion superconductors.
Abstract: We report In-NQR and Co-NMR experiments of CeCoIn 5 that undergoes a superconducting transition with a record high T c = 2.3 K to date among heavy-fermion superconductors. At zero magnetic field, a...
54 citations
TL;DR: In this article, the crystal structure of pentachlorophenol was solved by the combined application of nuclear quadrupole resonance and X-ray diffraction, and a pseudo solution was obtained, which was unusually close to the true solution.
Abstract: : The crystal structure of pentachlorophenol was solved by the combined application of nuclear quadrupole resonance and X-ray diffraction. The molecules are linked by chains of hydrogen-bonds with a configuration similar to that in tetrachlorohydroquinone. The nuclear quadrupole resonance of one of the ortho chlorine atoms is specially affected by the intermolecular interaction. This interaction is attributed to the proton on the OH group of the adjacent molecule, and the existence of bifurcated hydrogen bonds with bond lengths O-H..O = 2.97 A and O-H..Cl = 3.28 A is inferred. During the phase determination, a pseudo solution was obtained, which was unusually close to the true solution. The relation between these two solutions is discussed. (Author)
54 citations
54 citations
Patent•
09 Aug 1995
TL;DR: In this article, a method of labeling, authenticating and/or identifying a paper, credit/identification card, bank note, article or any other object using both nuclear magnetic resonance in magnetically ordered materials and nuclear quadrupole resonance phenomena as well as other phenomena of electric/magnetic dipole or tunnel transitions between Stark-Zeeman sublevels, frequencies of which belong to the radio-frequency band.
Abstract: The invention relates to a method of labeling, authenticating and/or identifying a paper, credit/identification card, bank note, article or any other object using both nuclear magnetic resonance in magnetically ordered materials and nuclear quadrupole resonance phenomena as well as other phenomena of electric/magnetic dipole or tunnel transitions between Stark-Zeeman sublevels, frequencies of which belong to the radio-frequency band These methods being characterized in that a minor amount of at least one authenticating substance is added to the object, said substance having a strong unique and identifiable response in radio-frequency domain at room temperature, with the spectroscopy being performed in the absence of any supported external static field, and with any specific response (intensity, line width, line shape, splittings, free induction decay, spin echoes or their combinations) being used as a criterion for discrimination The spectroscopy being performed in time domain (pulse) or frequency domain (continuous wave) with or without intensity, polarization, frequency or any other modulation of the exciting electromagnetic field The invention also provides instruments for implementing the method, and a set of substances usable with the method
54 citations