%0 Journal Article %1 PhysRevB.107.235415 %A Choi, Sang-Jun %A Sun, Hai-Peng %A Trauzettel, Björn %D 2023 %I American Physical Society %J Phys. Rev. B %K a %N 23 %P 235415 %R 10.1103/PhysRevB.107.235415 %T Conductance oscillations of antiferromagnetic layer tunnel junctions %U https://link.aps.org/doi/10.1103/PhysRevB.107.235415 %V 107 %X We study conductance oscillations of antiferromagnetic layer tunnel junctions composed of antiferromagnetic topological insulators such as MnBi2Te4. In the presence of an in-plane magnetic field, we find that the two terminal differential conductances across the junction oscillates as a function of field strength. Notably, the quantum interference at weak fields for the even-layer case is distinctive from the odd-layer case due to the scattering phase shift π. Consequently, the differential conductance vanishes (maximized) at integer magnetic flux quanta for even-layer (odd-layer) junctions. The conductance oscillations manifest the layer-dependent quantum interference in which symmetries and scattering phases play essential roles. In numerical calculations, we observe that the quantum interference undergoes an evolution from superconducting quantum interference device-like to Fraunhofer-like oscillations as the junction length increases.

@article{PhysRevB.107.235415, abstract = {We study conductance oscillations of antiferromagnetic layer tunnel junctions composed of antiferromagnetic topological insulators such as MnBi2Te4. In the presence of an in-plane magnetic field, we find that the two terminal differential conductances across the junction oscillates as a function of field strength. Notably, the quantum interference at weak fields for the even-layer case is distinctive from the odd-layer case due to the scattering phase shift π. Consequently, the differential conductance vanishes (maximized) at integer magnetic flux quanta for even-layer (odd-layer) junctions. The conductance oscillations manifest the layer-dependent quantum interference in which symmetries and scattering phases play essential roles. In numerical calculations, we observe that the quantum interference undergoes an evolution from superconducting quantum interference device-like to Fraunhofer-like oscillations as the junction length increases.}, added-at = {2023-10-06T09:03:28.000+0200}, author = {Choi, Sang-Jun and Sun, Hai-Peng and Trauzettel, Björn}, biburl = {https://www.bibsonomy.org/bibtex/25304c551c9a9ca67ab722d59888f5754/ctqmat}, day = 20, description = {Phys. Rev. B 107, 235415 (2023) - Conductance oscillations of antiferromagnetic layer tunnel junctions}, doi = {10.1103/PhysRevB.107.235415}, interhash = {bcf7d1dbf06f4df348fe242b8907b637}, intrahash = {5304c551c9a9ca67ab722d59888f5754}, journal = {Phys. Rev. B}, keywords = {a}, month = {06}, number = 23, numpages = {8}, pages = 235415, publisher = {American Physical Society}, timestamp = {2023-10-06T09:03:28.000+0200}, title = {Conductance oscillations of antiferromagnetic layer tunnel junctions}, url = {https://link.aps.org/doi/10.1103/PhysRevB.107.235415}, volume = 107, year = 2023 }