Magnus Rahm

Research

Magnus’ Ph.D. thesis work was focused on understanding the thermodynamics and optical properties of alloyed nanoparticles (“nanoalloys”), in particular in the context of applications in sensing. In his post-doctoral project, Magnus worked on understanding the lattice dynamics of halide perovskites usind machine learning models.

Education

• 2021: Doctorate in Physics; Chalmers University of Technology; video of the defense

• 2019: Licentiate in Physics; Chalmers University of Technology

• 2016: M.Sc. in Applied Physics; Chalmers University of Technology

• 2013: B.Sc. in Applied Physics; Chalmers University of Technology
  Feasibility of FPGA-based Computations of Transition Densities in Quantum Many-Body Systems

Publications

• calorine: A Python package for constructing and sampling neuroevolution potential models Permalink
  E. Lindgren, J. M. Rahm, E. Fransson, F. Eriksson, N. Österbacka, Z. Fan, and P. Erhart
  Journal of Open Source Software 9, 6264 (2024)
• Revealing the free energy landscape of halide perovskites: Metastability and transition characters in CsPbBr₃ and MAPbI₃ Permalink
  E. Fransson, J. M. Rahm, J. Wiktor, and P. Erhart
  Chemistry of Materials 35, 8229 (2023)
• Limits of the phonon quasi-particle picture at the cubic-to-tetragonal phase transition in halide perovskites Permalink
  E. Fransson, P. Rosander, F. Eriksson, J. M. Rahm, T. Tadano, and P. Erhart
  Communications Physics 6, 173 (2023)
• The Wulff construction goes low-symmetry Permalink
  P. Erhart and J. M. Rahm
  Nature Materials 22, 941 (2022)
• Quantitative predictions of thermodynamic hysteresis: Temperature-dependent character of the phase transition in Pd–H Permalink
  J. M. Rahm, J. Löfgren, and P. Erhart
  Acta Materialia 227, 117697 (2022)
• High-throughput characterization of transition metal dichalcogenide alloys: Thermodynamic stability and electronic band alignment Permalink
  C. Linderälv, J. M. Rahm, and P. Erhart
  Chemistry of Materials 34, 9364 (2022)
• GPUMD: A package for constructing accurate machine-learned potentials and performing highly efficient atomistic simulations Permalink
  Z. Fan, Y. Wang, P. Ying, K. Song, J. Wang, Y. Wang, Z. Zeng, K. Xu, E. Lindgren, J. M. Rahm, A. J. Gabourie, J. Liu, H. Dong, J. Wu, Y. Chen, Z. Zhong, J. Sun, P. Erhart, Y. Su, and T. Ala-Nissila
  Journal of Chemical Physics 157, 114801 (2022)
• Computational Design of Alloy Nanostructures for Optical Sensing of Hydrogen Permalink
  P. Ekborg-Tanner, J. M. Rahm, V. Rosendal, M. Bancerek, T. P. Rossi, T. J. Antosiewicz, and P. Erhart
  ACS Applied Nano Materials 5, 10225 (2022)
• A tale of two phase diagrams: Interplay of ordering and hydrogen uptake in Pd-Au-H Permalink
  J. M. Rahm, J. Löfgren, E. Fransson, and P. Erhart
  Acta Materialia 211, 116893 (2021)
• WulffPack: A Python package for Wulff constructions Permalink
  J. M. Rahm and P. Erhart
  Journal of Open Source Software 5, 1944 (2020)
• Non-bonded Radii of the Atoms Under Compression Permalink
  M. Rahm, M. Ångqvist, J. M. Rahm, P. Erhart, and R. Cammi
  ChemPhysChem 21, 2441 (2020)
• A Library of Late Transition Metal Alloy Dielectric Functions for Nanophotonic Applications Permalink
  J. M. Rahm, C. Tiburski, T. P. Rossi, F. A. A. Nugroho, S. Nilsson, C. Langhammer, and P. Erhart
  Advanced Functional Materials 30, 2002122 (2020)
• A Computational Assessment of the Efficacy of Halides as Shape-Directing Agents in Nanoparticle Growth Permalink
  J. Löfgren, J. M. Rahm, J. Brorsson, and P. Erhart
  Physical Review Materials 4, 096001 (2020)
• icet - A Python library for constructing and sampling alloy cluster expansions Permalink
  M. Ångqvist, W. A. Muñoz, J. M. Rahm, E. Fransson, C. Durniak, P. Rozyczko, T. H. Rod, and P. Erhart
  Advanced Theory and Simulations 2, 1900015 (2019)
• Structurally driven asymmetric miscibility in the phase diagram of W–Ti Permalink
  M. Ångqvist, J. M. Rahm, L. Gharaee, and P. Erhart
  Physical Review Materials 3, 30597 (2019)
• Understanding Chemical Ordering in Bimetallic Nanoparticles from Atomic Scale Simulations: The Competition between Bulk, Surface and Strain Permalink
  J. M. Rahm and P. Erhart
  Journal of Physical Chemistry C 122, 28439 (2018)
• Beyond Magic Numbers: Atomic Scale Equilibrium Nanoparticle Shapes for Any Size Permalink
  J. M. Rahm and P. Erhart
  Nano Letters 17, 5775 (2017)

Theses

• There Is an Alloy at the End of the Rainbow: Structure and Optical Properties From Bulk to Nano Permalink
  J. M. Rahm, Doctoral Thesis (2021)
• Structure and chemical ordering in metallic nanoparticles from atomic scale modeling Permalink
  J. M. Rahm, Licentiate Thesis (2019)
• Thermodynamics and Optical Response of Palladium-Gold Nanoparticles Permalink
  J. M. Rahm, Master′s Thesis (2016)