Effect of pressure on the magnetic properties of (Co0.5Fe0.5)5GeTe2
Abstract
Cobalt-doped Fe5GeTe2 possesses a rich magnetic phase diagram as a function of Co concentration. The nature of magnetic order in (Co0.5Fe0.5)5GeTe2 is especially interesting, as it has been shown to exhibit ferromagnetic order, A-type antiferromagnetic (AFM) order, or potentially both at the same time. Here we present magnetoresistance measurements on antiferromagnetic (Co0.5Fe0.5)5GeTe2 at a series of pressures and extract the anisotropy and interlayer exchange fields using the two-sublattice model. We show a 50 % increase of the interlayer exchange at 2 GPa, highlighting the sensitivity of magnetic properties to interlayer distance. In addition, we find that the sharp hysteretic transitions observed within the AFM state can be qualitatively described by a linear chain model, which suggests an even-odd effect as a function of layer number instead of a coexisting ferromagnetic phase.
Versions
Related
- Wave properties of a homogeneous, rotating plasma with full pressure tensor evolution
- Evolution of Magnetism in Ce4Ge7 under Magnetic Field and Pressure
- Effective kinetic theory description of the magnetic field-induced anisotropic gluon pressure during pre-equilibrium in heavy-ion collisions
- Ground-State Properties of a Lattice-Coupled Strongly Correlated Model for Solid Oxygen under Pressure
- Suppression of the skyrmion Hall effect in planar nanomagnets by the magnetic properties engineering: Skyrmion transport on nanotracks with magnetic strips
BibTeX
@misc{prok2026effect,
title = {{Effect of pressure on the magnetic properties of (Co$_0.5$Fe$_0.5$)$_5$GeTe$_2$}},
author = {Tamás Prok and Zoltán Kovács-Krausz and Harvey Stanfield and Bing Zhao and Michael Leonárd Morgan and Bálint Fülöp and Marcos H. D. Guimarães and Ivan J. Vera-Marun and Saroj Prasad Dash and Szabolcs Csonka and Péter Makk and Endre Tóvári},
howpublished = {arXiv},
year = {2026},
month = jul,
doi = {10.48550/arxiv.2607.05548},
eprint = {2607.05548},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2607.05548},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Effect of pressure on the magnetic properties of (Co_0.5Fe_0.5)_5GeTe_2
AU - Tamás Prok
AU - Zoltán Kovács-Krausz
AU - Harvey Stanfield
AU - Bing Zhao
AU - Michael Leonárd Morgan
AU - Bálint Fülöp
AU - Marcos H. D. Guimarães
AU - Ivan J. Vera-Marun
AU - Saroj Prasad Dash
AU - Szabolcs Csonka
AU - Péter Makk
AU - Endre Tóvári
PY - 2026
DA - 2026/07/06
PB - arXiv
DO - 10.48550/arxiv.2607.05548
UR - https://arxiv.org/abs/2607.05548
AB - Cobalt-doped Fe_5GeTe_2 possesses a rich magnetic phase diagram as a function of Co concentration. The nature of magnetic order in (Co_0.5Fe_0.5)_5GeTe_2 is especially interesting, as it has been shown to exhibit ferromagnetic order, A-type antiferromagnetic (AFM) order, or potentially both at the same time. Here we present magnetoresistance measurements on antiferromagnetic (Co_0.5Fe_0.5)_5GeTe_2 at a series of pressures and extract the anisotropy and interlayer exchange fields using the two-sublattice model. We show a 50 % increase of the interlayer exchange at 2 GPa, highlighting the sensitivity of magnetic properties to interlayer distance. In addition, we find that the sharp hysteretic transitions observed within the AFM state can be qualitatively described by a linear chain model, which suggests an even-odd effect as a function of layer number instead of a coexisting ferromagnetic phase.
ER -