تقرير
Antiferromagnetic order in a layered magnetic topological insulator MnBi$_2$Se$_4$ probed by resonant soft x-ray scattering
العنوان: | Antiferromagnetic order in a layered magnetic topological insulator MnBi$_2$Se$_4$ probed by resonant soft x-ray scattering |
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المؤلفون: | Chen, Xiang, Ruiz, Alejandro, Bishop, Alexander J., Gunn, Brandon, Basak, Rourav, Zhu, Tiancong, He, Yu, Vranas, Mayia, Weschke, Eugen, Kawakami, Roland K., Birgeneau, Robert J., Frano, Alex |
سنة النشر: | 2024 |
المجموعة: | Condensed Matter |
مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Materials Science |
الوصف: | The quasi-two-dimensional magnetic topological insulator MnBi$_2$Se$_4$, stabilized via non-equilibrium molecular beam epitaxy, is investigated by resonant soft x-ray scattering. Kiessig fringes are observed, confirming a high sample quality and a thin film thickness of 10 septuple layers ($\sim$13 nm). An antiferromagnetic Bragg peak is observed at the structurally forbidden reflection, whose magnetic nature is validated by studying its temperature, energy, and polarization dependence. Through a detailed analysis, an A-type antiferromagetic order with in-plane moments is implied. This alternative spin structure in MnBi$_2$Se$_4$, in contrast to the Ising antiferromagnetic states in other magnetic topological insulators, might be relevant for hosting new topological states. |
نوع الوثيقة: | Working Paper |
DOI: | 10.1103/PhysRevB.109.184418 |
URL الوصول: | http://arxiv.org/abs/2406.01064 |
رقم الأكسشن: | edsarx.2406.01064 |
قاعدة البيانات: | arXiv |
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