mqmas.m

Rotor-synchronous MQMAS pulse sequence.

Syntax

    fid=mqmas(spin_system,parameters,H,R,K)

Parameters

    parameters.pulse_dur - duration of each pulse, a two-
                           element vector, seconds

    parameters.pulse_amp - amplitude of each pulse, a two-
                           element vector, rad/s

    parameters.mq_order  - MQMAS coherence order

    parameters.rho0      - initial condition, usually Lz

    parameters.coil      - detection state, usually L+

    + the parameters required by the singlerot.m
      context function that will provide H, R, and K

Outputs

    fid - 2D amplitude mode free induction decay

Examples

An example of this sequence being run on a quadrupolar system is given in examples/nmr_solids/mqmas_nqi.m file.

Notes

The sequence is rotor-synchronous - parameters.sweep should be a positive real scalar equal to abs(parameters.rate); this is because this pulse sequence is stroboscopic with respect to the rotor period; both dimensions are sampled at that sweep width.

See also

singlerot.m, dante.m, cn2d_dq.m, cn2d_sq.m, cp_acquire_soft.m, cp_contact_hard.m, cp_contact_soft.m, fslghetcor.m, nqr_pa.m, pdsd.m, respiration.m, wise.m, Built-in_experiments

Version 2.2, authors: Marina Carravetta, Ilya Kuprov