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.

ISIS Neutron and Muon Source

ISIS Neutron and Muon Data

Spin crossover and low temperature spin dynamics in In2VO5

Data collected on the
MUSR instrument
at the ISIS facility

Abstract: The one dimensional material In2VO5 contains frustrated zigzag chains of corner sharing V 4+ (S = 1/2) square based pyramids interspersed with sheets of edge sharing InO6 octahedra. No previous reports of the low temperature structural or magnetic properties have been reported. In the paramagnetic regime, our magnetisation measurement show an unusual crossover at 120 K. Above this temperature, the inverse susceptibility obeys the Curie-Weiss law with the expected spin only moment, below 120 K a second linear region occurs with a larger moment. Our magnetisation and heat capacity measurements also show evidence for a spin gap at low temperatures. We propose a muon spin relaxation experiment to confirm whether the system a) does not order, and b) has a non-magnetic ground state. We will also study the magnetisation crossover at 120 K.

Public release date: 22 February 2011

Experimenter: Dr Simon Kimber
Experimenter: Professor Andrew Harrison
Experimenter: Professor Paul Attfield
Experimenter: Dr Mark de Vries

DOI: 10.5286/ISIS.E.24003233

ISIS Experiment Number: RB720455

Part Number: 1 - MUSR

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the dataset

Date of Experiment: 20 February 2008

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 Simon Kimber et al; (2008): Spin crossover and low temperature spin dynamics in In2VO5, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.24003233