%0 Journal Article %1 PhysRevB.101.161112 %A Klett, Michael %A Ok, Seulgi %A Riegler, David %A Wölfle, Peter %A Thomale, Ronny %A Neupert, Titus %D 2020 %I American Physical Society %J Phys. Rev. B %K a %N 16 %P 161112 %R 10.1103/PhysRevB.101.161112 %T Topology and magnetism in the Kondo insulator phase diagram %U https://link.aps.org/doi/10.1103/PhysRevB.101.161112 %V 101 %X Topological Kondo insulators are a rare example of an interaction-enabled topological phase of matter inthree-dimensional crystals—making them an intriguing but also hard case for theoretical studies. Here, we aimto advance our theoretical understanding by solving the paradigmatic two-band model for topological Kondo insulators using a fully spin-rotation invariant slave-boson treatment. Within a mean-field approximation, we map out the magnetic phase diagram and characterize both antiferromagnetic and paramagnetic phases by their topological properties. Among others, we identify an antiferromagnetic insulator that shows, for suitable crystal terminations, topologically protected hinge modes. Furthermore, Gaussian fluctuations of the slave-boson fields around their mean-field value are included in order to establish the stability of the mean-field solution through computation of the full dynamical susceptibility.

@article{PhysRevB.101.161112, abstract = {Topological Kondo insulators are a rare example of an interaction-enabled topological phase of matter inthree-dimensional crystals—making them an intriguing but also hard case for theoretical studies. Here, we aimto advance our theoretical understanding by solving the paradigmatic two-band model for topological Kondo insulators using a fully spin-rotation invariant slave-boson treatment. Within a mean-field approximation, we map out the magnetic phase diagram and characterize both antiferromagnetic and paramagnetic phases by their topological properties. Among others, we identify an antiferromagnetic insulator that shows, for suitable crystal terminations, topologically protected hinge modes. Furthermore, Gaussian fluctuations of the slave-boson fields around their mean-field value are included in order to establish the stability of the mean-field solution through computation of the full dynamical susceptibility.}, added-at = {2023-04-27T14:30:31.000+0200}, author = {Klett, Michael and Ok, Seulgi and Riegler, David and Wölfle, Peter and Thomale, Ronny and Neupert, Titus}, biburl = {https://www.bibsonomy.org/bibtex/209db1a2faad4d9032e77a31ed3ab997e/ctqmat}, day = 21, description = {Topology and magnetism in the Kondo insulator phase diagram}, doi = {10.1103/PhysRevB.101.161112}, interhash = {2de33c23bfcd983f51430d4c7bb58100}, intrahash = {09db1a2faad4d9032e77a31ed3ab997e}, journal = {Phys. Rev. B}, keywords = {a}, month = {04}, number = 16, numpages = {5}, pages = 161112, publisher = {American Physical Society}, timestamp = {2023-04-27T14:30:31.000+0200}, title = {Topology and magnetism in the Kondo insulator phase diagram}, url = {https://link.aps.org/doi/10.1103/PhysRevB.101.161112}, volume = 101, year = 2020 }