%0 Journal Article %1 PhysRevLett.123.207204 %A Nayga, Mary Madelynn %A Rachel, Stephan %A Vojta, Matthias %D 2019 %I American Physical Society %J Phys. Rev. Lett. %K b %N 20 %P 207204 %R 10.1103/PhysRevLett.123.207204 %T Magnon Landau levels and emergent supersymmetry in strained antiferromagnets %U https://link.aps.org/doi/10.1103/PhysRevLett.123.207204 %V 123 %X Inhomogeneous strain applied to lattice systems can induce artificial gauge fields for particles moving on this lattice. Here we demonstrate how to engineer a novel state of matter, namely an antiferromagnet with a Landau-level excitation spectrum of magnons. We consider a honeycomb-lattice Heisenberg model and show that triaxial strain leads to equally spaced pseudo-Landau levels at the upper end of the magnon spectrum, with degeneracies characteristic of emergent supersymmetry. We also present a particular strain protocol which induces perfectly quantized magnon Landau levels over the whole bandwidth. We discuss experimental realizations and generalizations.

@article{PhysRevLett.123.207204, abstract = {Inhomogeneous strain applied to lattice systems can induce artificial gauge fields for particles moving on this lattice. Here we demonstrate how to engineer a novel state of matter, namely an antiferromagnet with a Landau-level excitation spectrum of magnons. We consider a honeycomb-lattice Heisenberg model and show that triaxial strain leads to equally spaced pseudo-Landau levels at the upper end of the magnon spectrum, with degeneracies characteristic of emergent supersymmetry. We also present a particular strain protocol which induces perfectly quantized magnon Landau levels over the whole bandwidth. We discuss experimental realizations and generalizations.}, added-at = {2020-03-20T12:54:57.000+0100}, author = {Nayga, Mary Madelynn and Rachel, Stephan and Vojta, Matthias}, biburl = {https://www.bibsonomy.org/bibtex/22c327aa40a3f578baf98eadbb14b7d7b/ctqmat}, day = 15, description = {Phys. Rev. Lett. 123, 207204 (2019) - Magnon Landau Levels and Emergent Supersymmetry in Strained Antiferromagnets}, doi = {10.1103/PhysRevLett.123.207204}, interhash = {73ff5913b68055bf07f8914e0751a6b1}, intrahash = {2c327aa40a3f578baf98eadbb14b7d7b}, journal = {Phys. Rev. Lett.}, keywords = {b}, month = {11}, note = {cite arxiv:1903.05097Comment: 5+6 pages, 3+5 figs}, number = 20, numpages = {6}, pages = 207204, publisher = {American Physical Society}, timestamp = {2023-10-13T12:39:02.000+0200}, title = {Magnon Landau levels and emergent supersymmetry in strained antiferromagnets}, url = {https://link.aps.org/doi/10.1103/PhysRevLett.123.207204}, volume = 123, year = 2019 }