GHN colloquium with Prof. Andrea León ( Universidad Técnica Federico Santa Maria, Chile)
Summary
The GHN Colloquium talk series features the female scientists of the Grete Hermann Network (GHN) - an international network of female researchers in condensed matter physics and neighboring research areas. Distinguished female researchers are invited to give a lecture on their research and current projects, as well as about their career paths, to inspire young female scientists in particular, and to exchange ideas. After the official talk there will be an internal GHN networking event.
On January 20, 2025, we are happy to welcome Prof. Andrea León from the Universidad Técnica Federico Santa Maria (Chile) who will give an online scientific talk on Tuning Altermagnetic Phases in Ca3Ru2O7 Under Strain.
Talk abstract
Ca3Ru2O7 is an antiferromagnetic (AFM) polar metal considered a fascinating material due to its wide range of remarkable electronic phenomena, including colossal magnetoresistance, spin waves, and multiple phase transitions. Exploring these properties under external manipulation, such as electrical current, pressure, or strain, opens new pathways for understanding its electronic behavior and controlling its
quantum states. In this talk, we address the theoretical challenges of describing the electronic properties of Ca3Ru2O7 [1,2], and we explore
the feasibility of manipulating its magnetic states through lattice deformation using ab-initio methods. Our study identifies potential altermagnetic (AM) states, a recently discovered elemental magnetic phase, and demonstrates that these states can be stabilized under strain. Furthermore, we discuss the underlying mechanisms behind the stability of the AM phase and propose a novel approach for tuning quantum states via AFM-to-AM transitions [3] in Ca3Ru2O7 through lattice deformation.
[1] León, A. M., González, J. W., & Rosner, H., Phys. Rev. Mater. 8, 024411 (2024).
[2] I. Markovic, et al., Proc. Natl. Acad. Sci. USA 117, 15524–15529 (2020).
[3] González, J. W., León, A. M., González-Fuentes, C., & Gallardo, R. A., arXiv:2408.08999.
About Andrea León
Coming soon