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We propose a design scheme for potential electrides derived from conventional materials. Starting with rare-earth-based ternary halides, we exclude halogens and perform global structure optimization to obtain thermodynamically stable or…

Electrides are an emerging class of materials with excess electrons localized in interstices and acting as anionic interstitial quasi-atoms (ISQs). The spatial ion-electron separation means that electrides can be treated physically as ionic…

Materials Science · Physics 2021-04-28 Leilei Zhang , Hua Y. Geng , Q. Wu

S-band metals such as alkali and alkaline earth metals do not undergo a superconducting transition (SCT) at an ambient pressure, but their high-pressure phases do. In contrast, room temperature stable electride electride (C12A7:e-) in which…

We demonstrate in this paper that the recently discovered infinite-layer (IL) nickelates have much in common with a class of materials known as electrides. Oxide based electrides are compounds in which topotactic removal of loosely bound…

Superconductivity · Physics 2023-11-30 Kateryna Foyevtsova , Ilya Elfimov , George A. Sawatzky

A high-throughput screening based on first-principles calculations was performed to search for new ternary inorganic electrides. From the available materials database, we identified three new thermodynamically stable materials…

Materials Science · Physics 2019-02-13 Junjie Wang , Qiang Zhu , Zhenhai Wang , Hideo Hosono

Electrides are an emerging class of materials with highly-localized electrons in the interstices of a crystal that behave as anions. The presence of these unusual interstitial quasi-atom (ISQ) electrons leads to interesting physical and…

Materials Science · Physics 2021-03-16 L. Zhang , Q. Wu , S. Li , Y. Sun , X. Yan , Y. Chen , Hua Y. Geng

This paper is written as a brief introduction for beginning graduate students. The picture of electron waves moving in a cristalline potential and interacting weakly with each other and with cristalline vibrations suffices to explain the…

Strongly Correlated Electrons · Physics 2007-05-23 A. -M. S. Tremblay , C. Bourbonnais , D. Senechal

Due to the lack of full rotational symmetry in condensed matter physics, solids exhibit new excitations beyond Dirac and Weyl fermions, of which the six-fold excitations have attracted considerable interest owing to the presence of the…

Materials Science · Physics 2021-03-31 Simin Nie , B. Andrei Bernevig , Zhijun Wang

Finding new ionic conductors that enable significant advancements in the development of energy-storage devices is a challenging goal of current material science. Aside of material classes as ionic liquids or amorphous ion conductors, the…

Materials Science · Physics 2015-09-02 K. Geirhos , P. Lunkenheimer , M. Michl , D. Reuter , A. Loidl

The discovery of superconducting electrides, characterized by interstitial anionic electrons (IAEs) residing in lattice cavities, has established a distinctive platform for investigating superconductors. Yet the superconducting origin and…

The argyrodite sulfides are getting more and more attractive as highly promising solid-state electrolytes (SSEs) for high-performance all-solid-state batteries (ASSBs), owing to their high ionic conductivity, adequate plasticity, and decent…

Materials Science · Physics 2020-10-20 Hongjie Xu , Yuran Yu , Junhua Hu , Zhuo Wang , Guosheng Shao

We present a first-principles study of the electronic properties of silicon clathrate nanowires intercalated with various types of alkali or alkaline-earth atoms. We find that the band structure of the nanowires can be tuned by varying the…

Materials Science · Physics 2009-11-11 S. Sirichantaropass , V. M. García-Suárez , C. J. Lambert

Solid-state superionic conductors (SSICs) are promising alternatives to liquid electrolytes in batteries and other energy storage technologies. The rational design of SSICs and ultimately their deployment in battery technologies is hindered…

Chemical Physics · Physics 2023-06-02 Harender S. Dhattarwal , Rahul Somni , Richard C. Remsing

Hydrogen-rich compounds hold promise as high-temperature superconductors under high pressures. Recent theoretical hydride structures on achieving high-pressure superconductivity are composed mainly of H2 fragments. Through a systematic…

Computational Physics · Physics 2012-04-30 Hui Wang , John S. Tse , Kaori Tanaka , Toshiaki Iitaka , Yanming Ma

Electronic nematic and smectic liquid crystals are spontaneous symmetry-breaking phases that are seen to precede or coexist with enigmatic unconventional superconducting states in multiple classes of materials. In this Letter we describe…

Located at crystal voids, interstitial anion electrons (IAEs) have diverse topologies, which may be tuned to achieve new properties. Elucidating the role of IAEs in electron-phonon coupling (EPC), and using it to design new electride…

Superconductivity · Physics 2023-03-29 Xiaohua Zhang , Yansun Yao , Shicong Ding , Aitor Bergara , Fei Li , Yong Liu , Xiang-Feng Zhou , Guochun Yang

A mechanism of superconductivity is proposed for the Kondo lattice which has semi-metallic conduction bands with electron and hole Fermi surfaces. At high temperatures, the $f$ electron's localized spins/pseudospins are fluctuating between…

Superconductivity · Physics 2019-10-09 Shoma Iimura , Motoaki Hirayama , Shintaro Hoshino

The development of multifunctional devices calls for the discovery of new layered materials with novel electronic properties. f-electron systems naturally host a rich set of competing and intertwining phases owning to the presence of strong…

Materials Science · Physics 2024-11-27 Lin Hou , Ying Wai Li , Christopher Lane

In this review, from crystallographic symmetry to amorphous local polyhedra arrangement and combinations, we examine inorganic solid state electrolytes through the lens of structure property relationships, with oxides, sulfides, and halides…

Materials Science · Physics 2026-04-21 Denys Butenko , Mustafa Khan , Liusuo Wu , Jinlong Zhu

Natural hyperbolic materials have attracted significant interest in the field of photonics due to their unique optical properties. Based on the initial successful explorations on layered crystalline materials, hyperbolic dispersion was…

Optics · Physics 2025-11-25 Qi-Dong Hao , Hao Wang , Hong-Xing Song , Xiang-Rong Chen , Hua Y. Geng