Structure, physical properties, and magnetically tunable topological phases in the topological semimetal EuCuBi

Wang, Xuhui; Li, Boxuan; Zhou, Liqin; Chen, Long; Wang, Yulong; Yang, Yaling; Zhou, Ying; Liao, Ke; Weng, Hongming; Wang, Gang

doi:10.1103/physrevb.108.115126

Phys. Rev. B

2023

DOI: 10.1103/physrevb.108.115126

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Structure, physical properties, and magnetically tunable topological phases in the topological semimetal EuCuBi

Xuhui Wang,

Boxuan Li,

Liqin Zhou

et al.

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2024

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Cited by 4 publications

References 78 publications

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Magnetic Phase Diagram of Triangular Lattice Eu-Based Compound EuAg$$_{4}$$Sb$$_{2}$$

Ma,

Zheng,

et al. 2024

J Supercond Nov Magn

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Magnetic Phase Diagram of Triangular Lattice Eu-Based Compound EuAg$$_{4}$$Sb$$_{2}$$

Ma,

Zheng,

et al. 2024

J Supercond Nov Magn

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Weyl metallic state induced by helical magnetic order

Soh,

Sánchez-Ramírez,

Yang

et al. 2024

npj Quantum Mater.

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In the rapidly expanding field of topological materials there is growing interest in systems whose topological electronic band features can be induced or controlled by magnetism. Magnetic Weyl semimetals, which contain linear band crossings near the Fermi level, are of particular interest owing to their exotic charge and spin transport properties. Up to now, the majority of magnetic Weyl semimetals have been realized in ferro- or ferrimagnetically ordered compounds, but a disadvantage of these materials for practical use is their stray magnetic field which limits the minimum size of devices. Here we show that Weyl nodes can be induced by a helical spin configuration, in which the magnetization is fully compensated. Using a combination of neutron diffraction and resonant elastic x-ray scattering, we find that below TN = 14.5 K the Eu spins in EuCuAs develop a planar helical structure which induces two quadratic Weyl nodes with Chern numbers C = ±2 at the A point in the Brillouin zone.

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Crystal growth and evolution of magnetism in the EuCuP-EuCuAs solid solution

May,

Clements,

Wang

et al. 2024

Phys. Rev. Materials

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Structure, physical properties, and magnetically tunable topological phases in the topological semimetal EuCuBi

Cited by 4 publications

References 78 publications

Magnetic Phase Diagram of Triangular Lattice Eu-Based Compound EuAg$$_{4}$$Sb$$_{2}$$

Magnetic Phase Diagram of Triangular Lattice Eu-Based Compound EuAg$$_{4}$$Sb$$_{2}$$

Weyl metallic state induced by helical magnetic order

Crystal growth and evolution of magnetism in the EuCuP-EuCuAs solid solution

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