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Author Topic: Monte Carlo simulation for calculating the exchange couplings  (Read 4302 times)

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Offline NW

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Monte Carlo simulation for calculating the exchange couplings
« on: July 20, 2020, 13:23 »
Hello,

Is it possible to use Monte Carlo simulation for calculating the exchange couplings in QuantumATK?
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Offline Daniele Stradi

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Re: Monte Carlo simulation for calculating the exchange couplings
« Reply #1 on: August 3, 2020, 11:55 »
Hello,

there is no Monte-Carlo implementation in QuantumATK to calculate the exchange coupling constants, becasuse QuantumATK implements an efficient Green's function-based method to obtain  the exchange couplings at all orders (nearest neighbor, next-nearest neighbor, etc..). The method is implemented in the Heisenberg Exchange class:

https://docs.quantumatk.com/manual/Types/HeisenbergExchange/HeisenbergExchange.html

Best Regards,
Daniele 
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