zulf_abrupt.m

Zero-field NMR with an abrupt field drop.

Syntax

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

Description

Zero-field magnetometry experiment that propagates the initial condition through an exponential drop in the external magnetic field and then runs the detection at zero field.

Arguments

   parameters.drop_field   - the magnetic field that the sample should 
                             be dropped to, starting from the field spe-
                             cified in sys.magnet, Tesla

   parameters.drop_time    - drop time, seconds

   parameters.drop_npoints - number of discretisation points in the drop
 
   parameters.drop_rate    - field drop rate, Hz

   parameters.rho0         - initial state

   parameters.coil         - detection state

   parameters.sweep        - sweep width during acquisition

Outputs

     fid          - the free induction decay detected on the
                   coil state supplied

Examples

See zero_field_acetonitrile.m file in examples/nmr_zerofield directory.

See also

zerofield.m, fieldscan_enlev.m, fieldscan_magn.m

Version 2.1, authors: Ilya Kuprov