A naukri.com initiative
Bioengineer
3d
276
Image Credit: Bioengineer
Axion Quasiparticle Observed in 2D MnBi2Te4
- Researchers have successfully observed the axion quasiparticle in a two-dimensional magnetic topological insulator, MnBi₂Te₄, marking a significant breakthrough in bridging particle physics and condensed matter science.
- This discovery opens new avenues for exploring axion-like phenomena in condensed matter systems, offering an alternative to traditional particle accelerators or cosmic studies.
- The dynamical axion quasiparticle (DAQ) arises as a collective excitation in topological magnetic materials with coherent oscillations of the θ field induced by antiferromagnetic spin dynamics.
- The observation of DAQ in MnBi₂Te₄ not only alters its electrodynamics but also enhances its functionality, connecting topological insulator physics with antiferromagnetic spintronics.
- This discovery not only has profound theoretical implications but also holds promise for revolutionary technological applications, such as realizing axion polaritons for ultrafast spin-based information processing.
- The experiment substantiates the possibility of using solid-state systems to study axion-related physics under laboratory conditions, providing insights into high-energy axion particles' analogues.
- The breakthrough in observing DAQ in MnBi₂Te₄ offers potential in dark matter detection and signals the capability of engineered quantum materials to serve as quantum sensors for cosmic axions.
- The discovery is a result of advancements in dynamic magnetoelectric coupling, topological phase transitions in antiferromagnetic insulators, and Berry-curvature engineering in van der Waals materials over the past decade.
- The MnBi₂Te₄ platform is a significant milestone in materials science, facilitating the study of coherent θ oscillations and dynamic axion fields without external manipulation.
- This research indicates a new era where fundamental physics converges with applied technology, showcasing the concrete manifestation of complex quantum fields in solid-state materials.
- In essence, the observation of the axion quasiparticle in MnBi₂Te₄ signifies the emergence of axion quasiparticle physics in low-dimensional topological magnets and the potential for transformative spintronic and photonic devices.
Read Full Article
16 Likes
For uninterrupted reading, download the app