Intrinsic magnetic topological materials

Y Wang, F Zhang, M Zeng, H Sun, Z Hao, Y Cai… - Frontiers of …, 2023 - Springer
Topological states of matter possess bulk electronic structures categorized by topological
invariants and edge/surface states due to the bulk-boundary correspondence. Topological …

Ab initio overestimation of the topological region in Eu-based compounds

G Cuono, RM Sattigeri, C Autieri, T Dietl - Physical Review B, 2023 - APS
An underestimation of the fundamental band gap values by the density functional theory
within the local density approximation and associated approaches is a well-known …

Single pair of Weyl fermions in the half-metallic semimetal

LL Wang, NH Jo, B Kuthanazhi, Y Wu, RJ McQueeney… - Physical Review B, 2019 - APS
Materials with the ideal case of a single pair of Weyl points (WPs) are highly desirable for
elucidating the unique properties of Weyl fermions. EuC d 2 A s 2 is an antiferromagnetic …

Ideal Weyl semimetal induced by magnetic exchange

JR Soh, F De Juan, MG Vergniory, NBM Schröter… - Physical Review B, 2019 - APS
We report theoretical and experimental evidence that EuCd 2 As 2 in magnetic fields greater
than 1.6 T applied along the c axis is a Weyl semimetal with a single pair of Weyl nodes. Ab …

Temperature-pressure phase diagram of the intrinsically insulating topological antiferromagnet

X Chen, S Wang, J Wang, C An, Y Zhou, Z Chen, X Zhu… - Physical Review B, 2023 - APS
Zintl-phase EuCd 2 As 2 attracts much research interest because it has a potential of
manifesting various ideal topological states under external parameters. Here …

Evolution of magnetism, valence, and crystal lattice in under pressure

GC Jose, K Burrage, JLG Jimenez, W Xie, B Lavina… - Physical Review B, 2023 - APS
EuCd 2 As 2 has been proposed to be one of the ideal platforms as an intrinsic topological
magnetic system, potentially hosting a single pair of Weyl points when it is tuned into the …

Absence of Weyl nodes in revealed by the carrier density dependence of the anomalous Hall effect

Y Shi, Z Liu, LA Burnett, S Lee, C Hu, Q Jiang, J Cai… - Physical Review B, 2024 - APS
The antiferromagnetic layered compound EuCd 2 As 2 is widely considered a leading
candidate of ideal Weyl semimetals, featuring a single pair of Weyl nodes in its field-induced …

Consecutive topological phase transitions and colossal magnetoresistance in a magnetic topological semimetal

F Du, L Yang, Z Nie, N Wu, Y Li, S Luo, Y Chen… - npj Quantum …, 2022 - nature.com
The combination of magnetic symmetries and electronic band topology provides a promising
route for realizing topologically nontrivial quasiparticles, and the manipulation of magnetic …

Spin-carrier coupling induced ferromagnetism and giant resistivity peak in

V Sunko, Y Sun, M Vranas, CC Homes, C Lee… - Physical Review B, 2023 - APS
Eu Cd 2 P 2 is notable for its unconventional transport: upon cooling the metallic resistivity
changes slope and begins to increase, ultimately 100-fold, before returning to its metallic …

Evidence of Ba-substitution induced spin-canting in the magnetic Weyl semimetal

LD Sanjeewa, J Xing, KM Taddei, D Parker… - Physical Review B, 2020 - APS
Recently Eu Cd 2 As 2 was predicted to be a magnetic Weyl semimetal with a lone pair of
Weyl nodes generated by A-type antiferromagnetism and protected by a rotational …