Designing layered 2D skyrmion lattices in moir\'e magnetic hetero-structures

• URL: http://arxiv.org/abs/2302.01074v2
• Date: Thu, 8 Jun 2023 07:12:14 GMT
• Title: Designing layered 2D skyrmion lattices in moir\'e magnetic hetero-structures
• Authors: Bilal Jabakhanji and Doried Ghader
• Abstract summary: We study the potential of moir'e magnetic heterostructures to generate skyrmion lattices from stacking-dependent magnetism in 2D magnets. Our findings suggest the possibility of creating colorful skyrmion lattices in moir'e magnetic heterostructures.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Skyrmions are promising for the next generation of spintronic and magnonic devices, but their zero-field stability and controlled nucleation through chiral interactions remain challenging. In this theoretical study, we explore the potential of moir\'e magnetic heterostructures to generate ordered skyrmion lattices from the stacking-dependent magnetism in 2D magnets. We consider heterostructures formed by twisting ultrathin CrBr_3 films on top of CrI_3 substrates, assuming a moderate interfacial Dzyaloshinskii-Moriya interaction. At large moir\'e periodicity and appropriate substrate thickness, a moir\'e skyrmion lattice emerges in the interfacial CrBr_3 layer due to the weaker exchange interactions in CrBr_3 compared to CrI_3. This lattice is then projected to the remaining layers of the CrBr_3 film via emergent chiral interlayer fields. By varying the pristine stacking configurations within the ultrathin CrBr_3 film, we realize layered ferromagnetic and antiferromagnetic skyrmion lattices without the need for a permanent magnetic field. Our findings suggest the possibility of creating colorful skyrmion lattices in moir\'e magnetic heterostructures, enabling further exploration of their fundamental properties and technological relevance.

Related papers

• Nanoscale magnetism and magnetic phase transitions in atomically thin CrSBr [0.0]
  Van der Waals (vdW) magnets have attracted significant fundamental, and application-driven attention. The remarkably stable high-$T_c$ vdW magnet CrSBr has the potential to overcome these key shortcomings. Our work will enable the engineering of exotic electronic and magnetic phases in CrSBr and the realisation of novel nanomagnetic devices based on this highly promising vdW magnet.
  arXiv  Detail & Related papers  (2023-12-14T19:00:02Z)
• Imaging magnetism evolution of magnetite to megabar pressure range with quantum sensors in diamond anvil cell [57.91882523720623]
  We develop an in-situ magnetic detection technique at megabar pressures with high sensitivity and sub-microscale spatial resolution. We observe the macroscopic magnetic transition of Fe3O4 in the megabar pressure range from strong ferromagnetism (alpha-Fe3O4) to weak ferromagnetism (beta-Fe3O4) and finally to non-magnetism (gamma-Fe3O4) The presented method can potentially investigate the spin-orbital coupling and magnetism-superconductivity competition in magnetic systems.
  arXiv  Detail & Related papers  (2023-06-13T15:19:22Z)
• Non-volatile Electric Control of Magnetic and Topological Properties of MnBi2Te4 Thin Films [66.02797153096846]
  We propose a mechanism to control the magnetic properties of topological quantum material (TQM) by using magnetoelectric coupling. This mechanism uses a heterostructure of TQM with two-dimensional (2D) ferroelectric material.
  arXiv  Detail & Related papers  (2022-12-29T14:51:05Z)
• Layer-dependent interlayer antiferromagnetic spin reorientation in air-stable semiconductor CrSBr [13.368466574719537]
  Magnetic van der Waals (vdW) materials offer a fantastic platform to investigate and exploit rich spin stabilized in reduced dimensions. One tantalizing magnetic order is the interlayer antiferromagnetism in A-type vdW antiferromagnet. Here, we report the layer-dependent interlayer antiferromagnetic reorientation in air-stable semiconductor CrSBr.
  arXiv  Detail & Related papers  (2022-05-11T12:55:59Z)
• A family tree of two-dimensional magnetic materials with tunable topological properties [5.5897399714743825]
  Two-dimensional (2D) magnetic materials empowered with nontrivial band topology may lead to the emergence of exotic quantum states. We predict a family tree of 2D magnetic materials with tunable topological properties, starting from the parental materials of CrI3 and CrBr3.
  arXiv  Detail & Related papers  (2021-12-21T01:00:19Z)
• Phase diagram of a distorted kagome antiferromagnet and application to Y-kapellasite [50.591267188664666]
  We reveal a rich ground state phase diagram even at the classical level. The presented model opens a new direction in the study of kagome antiferromagnets.
  arXiv  Detail & Related papers  (2021-07-28T18:00:03Z)
• Spin Entanglement and Magnetic Competition via Long-range Interactions in Spinor Quantum Optical Lattices [62.997667081978825]
  We study the effects of cavity mediated long range magnetic interactions and optical lattices in ultracold matter. We find that global interactions modify the underlying magnetic character of the system while introducing competition scenarios. These allow new alternatives toward the design of robust mechanisms for quantum information purposes.
  arXiv  Detail & Related papers  (2020-11-16T08:03:44Z)
• Picoscale Magnetoelasticity Governs Heterogeneous Magnetic Domains in a Noncentrosymmetric Ferromagnetic Weyl Semimetal [0.0]
  We use a scanning SQUID microscope to image spontaneous magnetization and magnetic susceptibility of CeAlSi. metastable domains embody a type of frustrated or glassy magnetic phase, with excitations that may be of an emergent and exotic nature. We show how these domains form, how they interact, and how they can be manipulated or stabilized with estimated lattice strains on picometer levels.
  arXiv  Detail & Related papers  (2020-11-12T02:26:07Z)
• Quantum anomalous Hall phase in synthetic bilayers via twistless twistronics [58.720142291102135]
  We propose quantum simulators of "twistronic-like" physics based on ultracold atoms and syntheticdimensions. We show that our system exhibits topologicalband structures under appropriate conditions.
  arXiv  Detail & Related papers  (2020-08-06T19:58:05Z)
• Site Mixing for Engineering Magnetic Topological Insulators [8.820630220432209]
  The impact of antisite defects on magnetism and electronic structure is studied in MnSb$$Te$_4$. The detailed nonstoichiometry and site mixing of MnSb-$Te$_4$ crystals depend on the growth parameters.
  arXiv  Detail & Related papers  (2020-07-23T19:08:36Z)
• Optimal coupling of HoW$_{10}$ molecular magnets to superconducting circuits near spin clock transitions [85.83811987257297]
  We study the coupling of pure and magnetically diluted crystals of HoW$_10$ magnetic clusters to microwave superconducting coplanar waveguides. Results show that engineering spin-clock states of molecular systems offers a promising strategy to combine sizeable spin-photon interactions with a sufficient isolation from unwanted magnetic noise sources.
  arXiv  Detail & Related papers  (2019-11-18T11:03:06Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.