Work

Electronic and topological characters of the ideal magnetic topological materials EuAuX with X = P, As, Sb, and Bi

Year: 2024

Type: article

Abstract: Ideal magnetic topological materials have great significance in both fundamental physics and technical applications, due to their abundant exotic quantum properties and facilitation of control. Using first-principles calculations, we find several ideal magnetic topological materials in EuTX (T = Cu, Ag, and Au; X= P, As, Sb, and Bi) family. Particularly, EuAuP is the ferromagnetic Weyl semimetal , and EuAuX (X = As, Sb, and Bi) in their ground state with in-plane moments are the antiferromagnetic semimetals hosting the topological gap near the Fermi level. By tuning the magnetic moments to z -axis, EuAuX (X = As, Sb, and Bi) could further evolve into triple degenerate nodal points (TDNPs) semimetal states. The main characteristics of antiferromagnetic TDNP semimetal , including the Fermi arcs, and touching Fermi surfaces with opposite spin winding numbers, are also studied. Our work provides an ideal and reliable platform to modulate the magnetism , topological electronic structures and emergent quantum states.

Source: Computational Materials Today

DOI: 10.1016/j.commt.2024.100022

Authors: Shengwei Chi, Gang Xu

Institutions: Huazhong University of Science and Technology, Wuhan Institute of Quantum Technology

Language: English

Topic: Topological Materials and Phenomena

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $3,000

Funder: National Natural Science Foundation of China