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BaFe 2 (As 1-x P x ) 2 : a QCP inside the superconducting dome?

BaFe 2 (As 1-x P x ) 2 : a QCP inside the superconducting dome?. Hashimoto et al, Science 336, 1554 (2012). Is a peak in the penetration depth a signature of a QCP?. far from trivial…. Levchenko et al, PRL 110 , 177003 (2013 ) Chowdhury et al, PRL 111, 157004 ( 2013).

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BaFe 2 (As 1-x P x ) 2 : a QCP inside the superconducting dome?

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  1. BaFe2(As1-xPx)2: a QCP inside the superconducting dome? Hashimoto et al, Science 336, 1554 (2012) • Is a peak in the penetration depth a signature of a QCP? • far from trivial… Levchenkoet al, PRL 110, 177003 (2013) Chowdhury et al, PRL 111, 157004 (2013) • Why no peak in Ba(Fe1-xCox)2As2? Gordon et al, PRB 82, 054507 (2010) • Why a single quantum phase transition (compare with high-T)? • very weak simultaneous 1st-order • nematic-magnetic transition Fernandes et al, PRL 111, 057001 (2013)

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