ISIS Neutron and Muon Source Data Journal

Charge and spin fluctuations at the collapse of the pseudogap in a cuprate superconductor

Abstract: Understanding high-temperature superconductivity in cuprates remains a challenging problem. One approach is to characterise the evolution of the spin and charge excitations with doping and correlate these with other physical properties such as resistivity and heat capacity. We have had success in this regard using LET to demonstrate the existence of very-low-energy collective spin excitations for a sample with doping, p, greater than the critical doping where the so-called pseudogap disappears. Here we propose the measure at the critical doping of p*=0.19 where we have reason to think that both the spin and charge excitations will have the lowest characteristic energies. Our results may provide a framework to understand the strange metal (linear) behaviour observed in resistivity for this composition.

Local Contact: Dr Ross Stewart
Experimenter: Professor Stephen Hayden
Experimenter: Mr Jacopo Radaelli

DOI: 10.5286/ISIS.E.RB2310206

ISIS Experiment Number: RB2310206

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr Ross Stewart et al; (2024): Charge and spin fluctuations at the collapse of the pseudogap in a cuprate superconductor, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2310206

Data is released under the CC-BY-4.0 license.