ISIS Neutron and Muon Source Data Journal

Magnetic excitation in Sr2IrO4 : Establishing links to Cuprate superconductors

Abstract: The strontium iridate Sr2IrO4 has recently received a special attention because of its closeresemblance to undoped high-Tc cuprate in terms of structural, electronic, and magnetic aspects.We have recently measured magnon dispersion using the resonant inelastic x-ray scattering(RIXS) technique. A dispersive magnon branch with a bandwidth of ~200 meV has beenobserved. However, due to insufficient energy resolution of the state-of-the-art RIXS instruments,the magnon gaps, of quantum and classical origins, have not been quantified. The proposed INSmeasurements are aimed (i) to quantitatively measure the magnon gap at the zone center andzone boundary, and (ii) to investigate the origin of the new high energy magnetic excitationsobserved in the RIXS. We propose to measure the magnetic excitation up to the energy transfer of~ 600 meV using the TOF Merlin spectrometer.

Principal Investigator: Dr Bumjoon Kim
Experimenter: Mr Maximilian Josef Krautloher
Experimenter: Dr Joel Bertinshaw
Experimenter: Dr Devashi Adroja
Experimenter: Professor Bernhard Keimer
Experimenter: Dr Anil Jain

DOI: 10.5286/ISIS.E.RB1510481

ISIS Experiment Number: RB1510481

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 Bumjoon Kim et al; (2015): Magnetic excitation in Sr2IrO4 : Establishing links to Cuprate superconductors, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1510481

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