Practically universal representation of the Helfand-Werthamer upper critical field for any transport scattering rate

Ruslan Prozorov; Vladimir G. Kogan

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arXiv · 2407.15000

Practically universal representation of the Helfand-Werthamer upper critical field for any transport scattering rate

Ruslan Prozorov·Vladimir G. Kogan

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Abstract

The simplified scaling of the orbital upper critical field, $H_{c2}(T)$, for the isotropic case is discussed. To facilitate the analysis of the experimental data, we suggest a simple but accurate approximation in the entire temperature range of the scaled upper critical field valid for any transport scattering rate $H_{c2}/H_{c2}(0) \approx (1-t^2)/(1+0.42 \,t^{1.47})$.

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Ruslan Prozorov, Vladimir G. Kogan. 2024-07-20. Practically universal representation of the Helfand-Werthamer upper critical field for any transport scattering rate. https://arxiv.org/abs/2407.15000

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