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SpinW / spinw

SpinW Matlab library for spin wave calculation
http://www.spinw.org
GNU General Public License v3.0
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Issues with Annealing #69

Open shishirkrpandey opened 2 years ago

shishirkrpandey commented 2 years ago

Dear developers of SpinW,

I am using SpinW for annealing of a simple cubic antiferromagnetic system with J = 14 meV (please see attached with this mail; red curve in Fig. 5 of PRB 86, 104406 (2012)). The code is attached with this mail in .docx format.

There are several problems that I am facing in the annealing using SpinW and I could not find any example on your website. Following is the list of problems that I am facing.

  1. I am not getting the right magnetic ordering temperature even though I think my set for the annealing process is correct (I might be wrong).
  2. SpinW writes the thermodynamical properties at the last temperature. Then how can we get a plot as a function of temperature for these observable?
  3. It gives Cp = 0 everywhere except at T = 0 K (where it gives infy). This is also not right.
  4. Chi is quite small at all the temperatures with little variation. medium

Can you please have a look at the SpinW that I am sending and please let me know if I am doing something wrong. srmno3_anneal.docx

Thanks in advance and hoping to hear from you soon. Shishir

goodpikachu commented 6 months ago

Hello, have you solved this problem at the end? I am facing the same issue that Cp=0