Clarifying the pressure induced phases in the Q1D compound K2Cr8O16
The title compound, K2Cr8O16, belongs to a series of quasi-1D compounds synthesized using a high-pressure/-temperature technique. The system reveals a metal to insulator transition (MIT) at 95 K which does not affect the ferromagnetic (FM) order emerging below TC = 180 K. The microscopic mechanism of this MIT is still under debate but one of the prominent scenarios includes a Peierls transition. Externally applied pressure on K2Cr8O16 stabilises a variety of different ground states. Previous pressure dependent magnetisation studies suggested a transition from a FM ground state to, via an intermediate ferromagnetic phase, a paramagnetic insulator (PI) or an anti-ferromagnetic insulator (AFI). However, our recent muSR measurements proposed this intermediate phase to be more of an anti-ferromagnetic (rather than FM) in nature and the high pressure regime to be a PI. With this proposal, we aim to clarify the debated magnetic phase diagram through pressure dependent neutron diffraction up to 40 kbar.
The data is currently only available to download if you are a member of the proposal team.
The recommended format for citing this dataset in a research publication is in the following format:
Ola Kenji Forslund; CHANG Johan; Yuqing Ge; Thomas C. Hansen and Antonio M. dos Santos. (2023). Clarifying the pressure induced phases in the Q1D compound K2Cr8O16. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-31-2989
This data is not yet public
This data is not yet public
ILL has partnered with DataCite as the registration agency
for data persistent identifiers.