Honeycomb-Layered Oxides With Silver Atom Bilayers and Emergence of Non-Abelian SU(2) Interactions
Journal article, 2023
Honeycomb-layered oxides with monovalent or divalent, monolayered cationic lattices generally exhibit myriad crystalline features encompassing rich electrochemistry, geometries, and disorders, which particularly places them as attractive material candidates for next-generation energy storage applications. Herein, global honeycomb-layered oxide compositions, Ag2M2TeO6 ((Formula presented.).) exhibiting (Formula presented.) atom bilayers with sub-valent states within Ag-rich crystalline domains of Ag6M2TeO6 and (Formula presented.) -deficient domains of (Formula presented.) ((Formula presented.)). The (Formula presented.) -rich material characterized by aberration-corrected transmission electron microscopy reveals local atomic structural disorders characterized by aperiodic stacking and incoherency in the bilayer arrangement of (Formula presented.) atoms. Meanwhile, the global material not only displays high ionic conductivity but also manifests oxygen-hole electrochemistry during silver-ion extraction. Within the (Formula presented.) -rich domains, the bilayered structure, argentophilic interactions therein and the expected (Formula presented.) sub-valent states ((Formula presented.), etc.) are theoretically understood via spontaneous symmetry breaking of SU(2)× U(1) gauge symmetry interactions amongst 3 degenerate mass-less chiral fermion states, justified by electron occupancy of silver (Formula presented.) and 5s orbitals on a bifurcated honeycomb lattice. This implies that bilayered frameworks have research applications that go beyond the confines of energy storage.
silver bilayers
sub-valent degenerate states
argentophilic interactions
honeycomb-layered oxides
aberration-corrected transmission electron microscopy
Author
Titus Masese
Kyoto University
National Institute of Advanced Industrial Science and Technology (AIST)
Godwill Mbiti Kanyolo
National Institute of Advanced Industrial Science and Technology (AIST)
University of Electro-Communications
Yoshinobu Miyazaki
Sumika Chemical Analysis Service (SCAS), Ltd.
Miyu Ito
Sumika Chemical Analysis Service (SCAS), Ltd.
Noboru Taguchi
National Institute of Advanced Industrial Science and Technology (AIST)
Josef Rizell
National Institute of Advanced Industrial Science and Technology (AIST)
Chalmers, Physics, Materials Physics
Shintaro Tachibana
Ritsumeikan University
Kohei Tada
National Institute of Advanced Industrial Science and Technology (AIST)
Zhen Dong Huang
Nanjing University of Posts and Telecommunications
Abbas Alshehabi
National Institute of Technology, Ibaraki College
Hiroki Ubukata
Graduate School of Engineering
Keigo Kubota
National Institute of Advanced Industrial Science and Technology (AIST)
Kazuki Yoshii
National Institute of Advanced Industrial Science and Technology (AIST)
Hiroshi Senoh
National Institute of Advanced Industrial Science and Technology (AIST)
Cédric Tassel
Graduate School of Engineering
Yuki Orikasa
Ritsumeikan University
Hiroshi Kageyama
Graduate School of Engineering
Tomohiro Saito
Sumika Chemical Analysis Service (SCAS), Ltd.
Advanced Science
2198-3844 (ISSN) 21983844 (eISSN)
Vol. 10 6 2204672Subject Categories (SSIF 2011)
Inorganic Chemistry
Materials Chemistry
Condensed Matter Physics
DOI
10.1002/advs.202204672
PubMed
36575151