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Upper critical field H_c2 in PrOs4Sb12

D. Parker·K. Maki·H. Won
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Abstract

We study the upper critical field of the A and B phases in the triplet superconductor PrOs_{4}Sb_{12} within the p+h-wave superconductivity proposed recently for this material. The present result is compared with H_{c2}(t) and H*(t), the boundary between the A and B phase in PrOs_{4}Sb_{12}, reported earlier and with more recent data of H$_{c2}(t)$ for the single phase crystal. We find H_{c2}(t)'s for both the two phase crystal and the single phase crystal are described by the model for the A phase. From this fitting one can deduce the Fermi velocity as v=2.5 x 10^6 cm/s. On the other hand H_{c2}(t) for the B phase is found to be somewhat smaller than H*(t), which is rather puzzling.

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D. Parker, K. Maki, H. Won. 2005-10-19. Upper critical field H_c2 in PrOs4Sb12. https://arxiv.org/abs/cond-mat/0510527

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