Collapse of Critical Nematic Fluctuations in FeSe under Pressure

Evaluation of the diurnal intraocular pressure fluctuations and blood pressure under dehydration due to fasting

Introduction: This study aimed to investigate the diurnal intraocular pressure fluctuations under dehydration conditions and the relationship between the intraocular pressure fluctuations and blood pressure. Methods: The intraocular pressures (IOP), body weights, as well as systolic and diastolic blood pressures (SBP, DBP) of 36 fasting healthy volunteers were recorded at 8:00 a.m. and 5:00 p.m...

Evidence for unidirectional nematic bond ordering in FeSe

M. D. Watson,1,* T. K. Kim,1 L. C. Rhodes,2 M. Eschrig,2 M. Hoesch,1 A. A. Haghighirad,3 and A. I. Coldea3 1Diamond Light Source, Harwell Campus, Didcot OX11 0DE, United Kingdom 2Department of Physics, Royal Holloway, University of London, Egham, Surrey TW20 0EX, United Kingdom 3Clarendon Laboratory, Department of Physics, University of Oxford, Parks Road, Oxford OX1 3PU, United Kingdom (Receiv...

Effect of nematic ordering on electronic structure of FeSe

Electronically driven nematic order is often considered as an essential ingredient of high-temperature superconductivity. Its elusive nature in iron-based superconductors resulted in a controversy not only as regards its origin but also as to the degree of its influence on the electronic structure even in the simplest representative material FeSe. Here we utilized angle-resolved photoemission s...

Enhanced critical current density in the pressure-induced magnetic state of the high-temperature superconductor FeSe

We investigate the relation of the critical current density (Jc) and the remarkably increased superconducting transition temperature (Tc) for the FeSe single crystals under pressures up to 2.43 GPa, where the Tc is increased by ~8 K/GPa. The critical current density corresponding to the free flux flow is monotonically enhanced by pressure which is due to the increase in Tc, whereas the depinnin...

Signatures of valence fluctuations in CeCu2Si2 under high pressure