Quenching Echo Modulations in NMR Spectroscopy

93Nb NMR spin echo spectroscopy in single crystal NbSe3.

We report electric field induced phase displacements of the charge density wave (CDW) in a single crystal of NbSe3 using 93Nb NMR spin-echo spectroscopy. CDW polarizations in the pinned state induced by unipolar and bipolar pulses are linear and reversible up to at least E = (0.96)ET. The polarizations have a broad distribution extending up to phase angles of order 60 degrees for electric field...

Communication: Phase incremented echo train acquisition in NMR spectroscopy.

We present an improved and general approach for implementing echo train acquisition (ETA) in magnetic resonance spectroscopy, particularly where the conventional approach of Carr-Purcell-Meiboom-Gill (CPMG) acquisition would produce numerous artifacts. Generally, adding ETA to any N-dimensional experiment creates an N + 1 dimensional experiment, with an additional dimension associated with the ...

Shift-driven modulations of spin-echo signals.

Since the pioneering works of Carr-Purcell and Meiboom-Gill [Carr HY, Purcell EM (1954) Phys Rev 94:630; Meiboom S, Gill D (1985) Rev Sci Instrum 29:688], trains of π-pulses have featured amongst the main tools of quantum control. Echo trains find widespread use in nuclear magnetic resonance spectroscopy (NMR) and imaging (MRI), thanks to their ability to free the evolution of a spin-1/2 from s...

Stimulated Echo NMR

1. Introduction During the last years the interest in fast lithium ion conductors has considerably increased due to their promising potential applications in, e. g., smart windows, sensors and secondary ion batteries [1]. Among others, metal-doped Li 2 Ti 3 O 7 (ramsdellite structure) is currently examined as high voltage anode material for new generation Li ion batteries [2]. The present study...

NMR-Spectroscopy in Drug Analysis Quantitative NMR Spectroscopy