%0 Journal Article %1 noauthororeditor %A Roychowdhury, Subhajit %A Yao, Mengyu %A Samanta, Kartik %A Bae, Seokjin %A Chen, Dong %A Ju, Sailong %A Raghavan, Arjun %A Kumar, Nitesh %A Constantinou, Procopios %A Guin, Satya N. %A Plumb, Nicholas Clark %A Romanelli, Marisa %A Borrmann, Horst %A Vergniory, Maia G. %A Strocov, Vladimir N. %A Madhavan, Vidya %A Shekhar, Chandra %A Felser, Claudia %D 2023 %J Adv. Sci. %K a %N 13 %P 2207121 %R 10.1002/advs.202207121 %T Anomalous Hall conductivity and nernst effect of the idealweyl semimetallic ferromagnet EuCd$_2$As$_2$ %U https://onlinelibrary.wiley.com/doi/abs/10.1002/advs.202207121 %V 10 %X Weyl semimetal is a unique topological phase with topologically protectedband crossings in the bulk and robust surface states called Fermi arcs. Weylnodes always appear in pairs with opposite chiralities, and they need to haveeither time-reversal or inversion symmetry broken. When the time-reversalsymmetry is broken the minimum number of Weyl points (WPs) is two. Ifthese WPs are located at the Fermi level, they form an ideal Weyl semimetal(WSM). In this study, intrinsic ferromagnetic (FM) EuCd2As2are grown,predicted to be an ideal WSM and studied its electronic structure byangle-resolved photoemission spectroscopy, and scanning tunnelingmicroscopy which agrees closely with the first principles calculations.Moreover, anomalous Hall conductivity and Nernst effect are observed,resulting from the non-zero Berry curvature, and the topological Hall effectarising from changes in the band structure caused by spin canting producedby magnetic fields. These findings can help realize several exotic quantumphenomena in inorganic topological materials that are otherwise difficult toassess because of the presence of multiple pairs of Weyl nodes

@article{noauthororeditor, abstract = {Weyl semimetal is a unique topological phase with topologically protectedband crossings in the bulk and robust surface states called Fermi arcs. Weylnodes always appear in pairs with opposite chiralities, and they need to haveeither time-reversal or inversion symmetry broken. When the time-reversalsymmetry is broken the minimum number of Weyl points (WPs) is two. Ifthese WPs are located at the Fermi level, they form an ideal Weyl semimetal(WSM). In this study, intrinsic ferromagnetic (FM) EuCd2As2are grown,predicted to be an ideal WSM and studied its electronic structure byangle-resolved photoemission spectroscopy, and scanning tunnelingmicroscopy which agrees closely with the first principles calculations.Moreover, anomalous Hall conductivity and Nernst effect are observed,resulting from the non-zero Berry curvature, and the topological Hall effectarising from changes in the band structure caused by spin canting producedby magnetic fields. These findings can help realize several exotic quantumphenomena in inorganic topological materials that are otherwise difficult toassess because of the presence of multiple pairs of Weyl nodes}, added-at = {2023-05-10T15:51:22.000+0200}, author = {Roychowdhury, Subhajit and Yao, Mengyu and Samanta, Kartik and Bae, Seokjin and Chen, Dong and Ju, Sailong and Raghavan, Arjun and Kumar, Nitesh and Constantinou, Procopios and Guin, Satya N. and Plumb, Nicholas Clark and Romanelli, Marisa and Borrmann, Horst and Vergniory, Maia G. and Strocov, Vladimir N. and Madhavan, Vidya and Shekhar, Chandra and Felser, Claudia}, biburl = {https://www.bibsonomy.org/bibtex/25790ca71e01ec4d1825fd5ea0f403efa/ctqmat}, day = 24, description = {Anomalous hall conductivity and nernst effect of the ideal weyl semimetallic ferromagnet EuCd2As2}, doi = {10.1002/advs.202207121}, interhash = {b0fd689fd406c617c9a03d0bcd930f2a}, intrahash = {5790ca71e01ec4d1825fd5ea0f403efa}, journal = {Adv. Sci.}, keywords = {a}, month = {02}, number = 13, pages = 2207121, timestamp = {2023-10-20T12:23:21.000+0200}, title = {Anomalous Hall conductivity and nernst effect of the idealweyl semimetallic ferromagnet EuCd$_{\mathbf{2}}$As$_{\mathbf{2}}$}, url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/advs.202207121}, volume = 10, year = 2023 }