ISIS Neutron and Muon Source Data Journal
This is a page describing data taken during an experiment at the ISIS Neutron and Muon Source. Information about the ISIS Neutron and Muon Source can be found at https://www.isis.stfc.ac.uk.
muSR study of the novel magnetism and spin dynamics in a new dilute magnetic semiconductor series
Abstract: Dilute ferromagnetism in insulative semiconductors, wherein only a small amount (~1-3%) of magnetic ions are doped, has received severe arguments toward its intrinsic nature since its first report in 1991 because no concrete evidence has been obtained via reliable experimental techniques such as muSR or neutron diffraction. However, we recently found intrinsic dilute ferromagnetism in luminescent semiconductors SrSiO3 (SSO). Our latest ISIS experiment, RB2510182 (muSR study of the percolation process in a new dilute magnetic semiconductor series), on scarcely diluted samples of 1%, 0.1%, and 0.014%Dy:SSO has successfully revealed that the long-range order can be established at Dy/Sr = 0.1%, and the internal field in the 0.014%Dy:SSO shows a prominent dynamic nature. We have further found contrasting magnetization characteristics for 5%Dy:SSO, 5%Ho:SSO, 5%Eu:SSO, 5%Tb:SSO etc., implying different spin dynamics in them. In particular, our new neutron experiments show long-range ferromagnetic order for 5%Dy:SSO but short-ranged one for 5%Ho:SSO. Therefore, it is of great interest to investigate and compare the dynamics in this system doped with these different ions. The investigation and verification of the predicted contrastingly different dynamics for these different magnetic ions would produce fruitful results and enrich this novel work on the intrinsic dilute magnetism.
Principal Investigator: Professor Xu-Guang Zheng
Experimenter: Dr Ichihiro Yamauchi
Local Contact: Dr Koji Yokoyama
DOI: 10.5286/ISIS.E.RB2520405
ISIS Experiment Number: RB2520405
| Part DOI | Instrument | Public release date | Download Link |
|---|---|---|---|
| 10.5286/ISIS.E.RB2520405-1 | EMU | 01 December 2028 | Download |
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:
Professor Xu-Guang Zheng et al; (2025): muSR study of the novel magnetism and spin dynamics in a new dilute magnetic semiconductor series, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB2520405
Data is released under the CC-BY-4.0 license.
