© Markus Püttmann

HOYER, Rhea (M.Sc.)

Institut für Festkörpertheorie
Universität Münster


Raum: 735
Wilhelm-Klemm-Straße 10
D-48149 Münster
✆+49 251 83-39131
E-Mail

Position: Doktorandin


Research interests:

I work on collective excitations in unconventional magnets, with a focus on the theoretical modelling of magnons in altermagnets, a newly identified class of collinear magnets that combine zero net magnetization with spin-split electron and magnon bands in reciprocal space. I am particularly interested in how these magnons give rise to thermal transport signatures, and how altermagnetic features can be controlled and engineered. I am also interested in topological features in magnets, especially topologically nontrivial magnon edge states and their thermal transport signatures. Looking ahead, I would like to extend my work to Bose-Einstein condensates of magnons and explore other collective excitations in both magnetic and nonmagnetic systems.


Lebenslauf:

since 11/2025     Research assistant at University of Münster 
since 11/2022     PhD Candidate at Johannes Gutenberg University Mainz 
11/2022 - 10/2025     Research assistant at Johannes Gutenberg University Mainz


Awards:

06/2021 - 01/2022     INSPIRE Potentials NCCR SPIN Master’s Fellowship at University of Basel

05/2025     Best Poster Award for "Altermagnetic splitting of magnons in hematite (α-Fe2O3)" at MAGNETIC FRONTIERS 2025: Altermagnetism - New Opportunities in Magnetism, Liblice, Czech Republic

07/2024     Best Poster Award for "Zero-field crystal thermal Hall effect in insulating altermagnets" at International Conference on Magnetism (ICM) 2024, Bologna, Italy

Publikationen

2026

Altermagnetic Magnons in Dipolar Nanomagnet Arrays
Rhea Hoyer, Ephraim Spindler, Lukas Körber, Tobias Wagner, Mathias Weiler, Alexander Mook
arXiv: 2609.18398


2025

Altermagnetic splitting of magnons in hermatite (α-Fe2O3)
Rhea Hoyer, P. Peter Stavropoulos, Aleksandar Razpopov, Roser Valenti, Libor Šmejkal, Alexander Mook
Phys. Rev. B 112, 064425 (2025)   |   arXiv:2503.11623

Spontaneous Crystal Thermal Hall Effect in Insulating Altermagnets
Rhea Hoyer, Rodrigo Jaeschke-Ubiergo, Kyo-Hoon Ahn, Libor Šmejkal, Alexander Mook
Phys. Rev. B 111, L020412 (2025)   |   arXiv:2405.05090


2023

Magnons, magnon bound pairs, and their hybrid spin-multipolar topology
Alexander Mook, Rhea Hoyer, Jelena Klinovaja, Daniel Loss
Phys. Rev. B 107, 064429 (2023)   |   arXiv:2203.12374