Magnetic phase diagram and cluster glasslike properties of stage-1 graphite-intercalated FeCl3

Title

Magnetic phase diagram and cluster glasslike properties of stage-1 graphite-intercalated FeCl3

 Author

Levinsky, J. J.B. (Rijksuniversiteit Groningen)
Scholtens, R. (Rijksuniversiteit Groningen)
Pappas, C. (TU Delft RST/Neutron and Positron Methods in Materials) ORCID 0000-0002-9727-5697
Blake, G. R. (Rijksuniversiteit Groningen)

Date

2022

 Abstract

We present a comprehensive investigation of the magnetic properties of stage-1 graphite intercalated FeCl3 using a combination of DC and AC magnetic susceptibility, thermoremanent magnetization, and field-dependent magnetization measurements. This van der Waals system, with a centrosymmetric honeycomb lattice, combines frustration and disorder, due to intercalation, and may be hosting topologically nontrivial magnetic phases. Our study identifies two magnetic phase transitions at Tf1≈4.2 K and at Tf2≈2.7 K. We find that the paramagnetic state, for T>Tf1, is dominated by short-range ferromagnetic correlations. These build up well above Tf1 and lead to a significant change in magnetic entropy, which reaches ΔSMPk=-5.52 J kg-1K-1 at 7 T. Between Tf1 and Tf2, we observe slow spin dynamics characteristic of a cluster glasslike state, whereas for T<Tf2, our results indicate the onset of a low-temperature long-range ordered state. The analysis of the experimental results leads to a complex phase diagram, which may serve as a reference for future investigations searching for topological nontrivial phases in this system.


To reference this document use:

http://resolver.tudelft.nl/uuid:0ccd6792-46bf-4213-ae03-ae8717eacb19

 DOI

https://doi.org/10.1103/PhysRevB.105.054418

 ISSN

2469-9950

 Source

Physical Review B, 105 (5)

 Part of collection

Institutional Repository

 Document type

journal article

 Rights

© 2022 J. J.B. Levinsky, R. Scholtens, C. Pappas, G. R. Blake
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