Marjoram’s fermions have the potential for zero-resistance information technology

Matter (2022). DOI: 10.1016 / j.matt.2022.04.021 “width =” 499 “height =” 530 “/>

Experimental results of ARPES and STM for FeSe / STO monolayer. (A) Experimental STM topography of the FM edge and AFM edge of the FeSe / STO. The insert shows a topographic image of the STM with atomic resolution at the base position of the FM edge and the AFM edge, showing the top position of the Se atoms (crystal orientations are indicated). (B) Theoretical (black lines) and ARPES band structure around point M. (C) Theoretical 1D band structure of FeSe / STO band with FM (left) and AFM (right) edges. (D) Theoretical LDOS for final and volumetric states. (E) Experimental STS spectra of end and volume states for FM (left) and AFM (right) edges. The light blue bar in (A) – (D) shows the difference in SOC. (A) – (E) adapted with permission from Springer Nature. credit: Matter (2022). DOI: 10.1016 / j.matt.2022.04.021

A new review of FLEET with multiple nodes, published in Matterinvestigates the demand for marjoram fermions in iron – based superconductors.

Marjorana’s elusive fermion, or “angel particle,” proposed by Ettore Marjorana in 1937, behaves both as a particle and an antiparticle – and surprisingly remains stable instead of self-destructive.

Marjoram’s fermions promise zero-resistance information and communication technologies, tackling the growing energy consumption of modern electronics (already 8% of global electricity consumption) and promising a sustainable future for computers.

In addition, the presence of zero Marjoran energy regimes in topological superconductors made these exotic quantum materials the main candidate materials for realizing topological quantum calculations.

The existence of marjoram fermions in condensed matter systems will help FLEET in its search for future low-energy electronic technologies.

The angel particle: Both matter and antimatter

Fundamental particles such as electrons, protons, neutrons, quarks and neutrinos (called fermions) have their own separate antiparticles. The antiparticle has the same mass as its ordinary partner, but opposite electric charge and magnetic moment.

Conventional fermion and antifermion constitute matter and antimatter and destroy each other when combined.

“Marjoram’s fermion is the only exception to this rule, a constituent particle that is its own antiparticle,” said author Xiaolin Wang (UOW).

However, despite the intense search for marjoram particles, the trace of its existence has been elusive for many decades, as its two conflicting properties (ie its positive and negative charges) make it neutral and its interactions with the environment are very weak. .

Topological superconductors: fertile ground for the angel particle

Although the existence of the Marjoram particle has not yet been discovered, despite extensive research in high-energy physics facilities such as CERN, it may exist as one-particle excitation in condensed matter systems where band topology and superconductivity coexist.

“Over the last two decades, Marjoram particles have been reported in many superconducting heterostructures and have been demonstrated with strong potential in quantum computing applications,” said Dr. Muhammad Nadeim, FLEET’s postdoc at UOW.

A few years ago, a new type of material called topological iron-based superconductors was reported, which contains Marjoram particles without producing heterostructures, which is important for use in real devices.

“Our paper discusses the latest experimental advances in these materials: how to obtain topological superconducting materials, experimental observation of the topological state, and detection of zero Marjoran regimes,” says first author Dr. UOW. candidate Lina Sang.

In these systems, quasiparticles can represent a certain type of marjoram fermion, such as a “chiral” marjoram fermion that moves in a one-dimensional path and a marjoram “zero mode” that remains confined to zero-dimensional space.

Majorana Zero Mode Applications

If such condensed matter systems containing marjoram fermions are experimentally available and can be characterized by a simple technique, this would help researchers focus engineering on low-energy technologies whose functionalities are activated by using the unique physical characteristics of marjoram fermions. , e.g. such as fault-tolerant topological quantum calculations and ultra-low energy electronics.

The adoption of Marjoram fermions in topological states of matter, topological insulators and Vail semimetals will be considered this month at a major international conference on semiconductor physics (ICPS) in Sydney, Australia.

The IOP 2021 Quantum Materials Roadmap explores the role of quantum materials based on internal spin-orbit bonding (SOC) for topological devices based on Marjoran modes, presenting evidence on the boundary between strong SOC materials and superconductors, as well as in iron superconductor.


Magnetic method for controlling the transport of chiral marjoram fermions


More info:
Lina Sang et al, zero modes of Majorana in iron-based superconductors, Matter (2022). DOI: 10.1016 / j.matt.2022.04.021

Provided by FLEET

Quote: Marjoram Fermions Have Zero Resistance Information Technology Potential (2022, June 22), retrieved on June 22, 2022 from https://phys.org/news/2022-06-majorana-fermions-potential-technology -resistance.html

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