Difference between revisions of "Hyscore.m"

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HYSCORE pulse sequence. Syntax:
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{{DISPLAYTITLE:hyscore.m}} __NOTOC__
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HYSCORE experiment, implemented as described in Szosenfogel and Goldfarb (http://dx.doi.org/10.1080/00268979809483260).
  
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        fid=hyscore(spin_system,parameters,H,R,K)
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==Syntax==
  
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The following parameters are currently accepted:
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    fid=hyscore(spin_system,parameters,H,R,K)
  
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parameters.nsteps                number of points to be computed
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==Parameters==
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                                  in each dimension
 
  
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  parameters.timestep              simulation time step
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    parameters.nsteps          number of points to be computed
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                              in each dimension
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    parameters.sweep          sweep width, Hz
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    parameters.tau            tau delay, seconds
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    parameters.rho0            initial state
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    parameters.coil            detection state
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    H  - Hamiltonian matrix, received from context function
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    R  - relaxation superoperator, received from context function
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    K  - kinetics superoperator, received from context function
  
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parameters.tau                  tau delay
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==Outputs==
  
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  parameters.rho0                  initial state
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    fid - two-dimensional free induction decay that Fourier
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            transforms into a HYSCORE spectrum
  
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parameters.coil                  detection state
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==Examples==
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A powder-averaged HYSCORE of a 14N nitroxide radical reproducing Figure 2a from http://dx.doi.org/10.1080/00268979809483260 is available in examples/esr_solids/hyscore_powder.m file. The output is reproduced below.
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[[File:hyscore.png]]
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==Notes==
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The sequence uses ideal pulses, replace with [[shaped_pulse_af.m]] to have soft pulses instead.
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==See also==
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[[eseem.m]], [[oopeseem.m]], [[deer_analyt.m]], [[ridme.m]], [[shaped_pulse_af.m]], [[deer_3p_hard_deer.m]], [[deer_3p_hard_echo.m]], [[deer_3p_soft_deer.m]], [[deer_3p_soft_diag.m]], [[deer_3p_soft_hole.m]], [[deer_4p_soft_deer.m]], [[deer_4p_soft_diag.m]], [[deer_4p_soft_hole.m]], [[endor_cw.m]], [[endor_davies.m]], [[endor_mims.m]], [[endor_mims_echo.m]], [[endor_mims_ideal.m]], [[fieldsweep.m]], [[rapidscan.m]], [[rydmr_exp.m]], [[sifter.m]], [[Built-in_experiments]]
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''Version 2.4, authors: [[Luke Edwards]], [[Ilya Kuprov]]''

Latest revision as of 19:37, 6 June 2026

HYSCORE experiment, implemented as described in Szosenfogel and Goldfarb (http://dx.doi.org/10.1080/00268979809483260).

Syntax

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

Parameters

   parameters.nsteps          number of points to be computed 
                              in each dimension

   parameters.sweep           sweep width, Hz

   parameters.tau             tau delay, seconds

   parameters.rho0            initial state

   parameters.coil            detection state

   H  - Hamiltonian matrix, received from context function

   R  - relaxation superoperator, received from context function

   K  - kinetics superoperator, received from context function

Outputs

    fid  - two-dimensional free induction decay that Fourier
           transforms into a HYSCORE spectrum

Examples

A powder-averaged HYSCORE of a 14N nitroxide radical reproducing Figure 2a from http://dx.doi.org/10.1080/00268979809483260 is available in examples/esr_solids/hyscore_powder.m file. The output is reproduced below.

Hyscore.png

Notes

The sequence uses ideal pulses, replace with shaped_pulse_af.m to have soft pulses instead.

See also

eseem.m, oopeseem.m, deer_analyt.m, ridme.m, shaped_pulse_af.m, deer_3p_hard_deer.m, deer_3p_hard_echo.m, deer_3p_soft_deer.m, deer_3p_soft_diag.m, deer_3p_soft_hole.m, deer_4p_soft_deer.m, deer_4p_soft_diag.m, deer_4p_soft_hole.m, endor_cw.m, endor_davies.m, endor_mims.m, endor_mims_echo.m, endor_mims_ideal.m, fieldsweep.m, rapidscan.m, rydmr_exp.m, sifter.m, Built-in_experiments

Version 2.4, authors: Luke Edwards, Ilya Kuprov