Special Issue "Advances in Topological Materials"
Deadline for manuscript submissions: 31 December 2020.
Interests: Topological effects in condensed matter; 3D Dirac and Weyl physics; Strongly correlated electron systems, Superconductivity, Multiferroics, ferroelectrics; dielectric relaxation; Metal-insulator transitions; Low-energy electrodynamics of condensed matter
It is my pleasure to announce this Special Issue of Crystals on topological materials. Graphene is probably the greatest inspiration in current solid-state research. Many unique properties of graphene are due to its peculiar electronic structure, characterized by the linear electronic band dispersion and the crossings of these bands near the Fermi level. This band structure leads to a charge motion that is described by the Dirac Hamiltonian for massless particles, rather than by the standard Schrödinger Hamiltonian. The search for other materials, where similar physics would be observed, has led to the theoretical predictions and experimental discovery of topological insulators as well as Dirac and Weyl semimetals. In topological insulators, the surface states provide conduction (while the bulk is insulating) and the electronic structure of these states is similar to the electronic structure of graphene. The Dirac cones in topological insulators are symmetry-protected and thus robust against perturbations. Dirac and Weyl semimetals, in turn, possess linearly dispersing bands in their bulk with the band crossing points being protected either by symmetry or topology. The family of different topological electronic phases in solids continues to grow: the theoretical predictions of nodal-line, triple-point, and type-II Weyl semimetals have recently been accompanied by different experimental verifications for these novel phases. Common to all these states is the electronic low-energy band structure, which is represented by crossing linear bands. Research on these novel phases and on related quantum phenomena, provides strong ties between solid-state and high-energy physics. On the other hand, the excitement surrounding topological materials is also fueled by appealing potential applications. Topological semimetals are known for their high mobility and large magnetoresistance that can be exploited in high-speed electronics and spintronics. Valley degrees of freedom also open up possibilities for valleytronics applications. Electronic superlenses made from topological semimetals have been suggested to collimate electrons beyond diffraction limits in scanning tunneling microscopes. The robust surface states of such compounds can be utilized in surface-related chemical processes, such as catalysis. The fundamental interest and application potential are both calling for thoughtful theoretical and experimental investigations on topological materials. In this Special Issue, we welcome contributions from both theorists and experimentalists on all relevant aspects of this novel field.
Dr. Artem Pronin
Manuscript Submission Information
Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.
Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Crystals is an international peer-reviewed open access monthly journal published by MDPI.
Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.
- Topological effects in condensed matter
- Weyl and Dirac semimetals
- Topological insulators
- Skyrmions and real-space topology
- Topological chiral crystals