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One question? Neel temperature is temperature in which magnetisation is equal to zero?

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- Thread starter Petar Mali
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- #1

- 290

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One question? Neel temperature is temperature in which magnetisation is equal to zero?

- #2

- 199

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- #3

- 290

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Can I say for [tex]\sigma=0[/tex], [tex]T=T_N[/tex]?

- #4

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Can I say for [tex]\sigma=0[/tex], [tex]T=T_N[/tex]?

What do you mean by sigma=0? If you mean that the entropy is zero, I don't think so. It holds when all the local moments are 'fully' aligned(such that two nearest neighbors point in opposite directions). At the Neel temperature, such alignment starts to develop.

- #5

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Sigma iz magnetisation!

- #6

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Aha! The magnetization! :) In zero fields, the magnetization in the paramagnet-antiferromagnet transition should be always zero. It is not a suitable measure to characterize the transition.

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