ISIS Neutron and Muon Source Data Journal

Magnetic excitation of Ca2RuO4 in pressure induced ferromagnetic phase

Abstract: Recently, a novel type of Bose-Einstein condensation (BEC) of spin-orbit excitons has been proposed in Mott insulator Ca2RuO4. In the recent INS study, we have observed dispersive magnon branch with a gap of 14 meV. The fact that the ground state of Ca2RuO4 can be tuned by a relatively small magnetic field, pressure or chemical doping indicate the near-degeneracy of many possible ground states and quantum critical nature of the system resulting from competition of various effects. Recent pressure dependent transport, magnetization [18], and Raman scattering[19] measurements has revealed a collapse of the antiferromagnetic insulator phase into a ferromagnetic metal phase at 5 Kbar. Aim of the proposed experiment is to investigate the magnetic excitations across the pressure induced phase transitionfrom the anti-ferromagnetic to ferromagnetic metallic phase.

Principal Investigator: Dr Anil Jain
Experimenter: Mr Juan Porras Perez Guerrero
Experimenter: Dr Bumjoon Kim
Experimenter: Mr Maximilian Josef Krautloher
Experimenter: Dr Joel Bertinshaw
Experimenter: Professor Bernhard Keimer

DOI: 10.5286/ISIS.E.RB1510507

ISIS Experiment Number: RB1510507

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
Select the data format above to find out more about it.

Data Citation

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

For Example:
Dr Anil Jain et al; (2015): Magnetic excitation of Ca2RuO4 in pressure induced ferromagnetic phase, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1510507

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