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As the simplest element in nature, unraveling the phase diagram of hydrogen is a primary task for condensed matter physics. As conjectured many decades ago, in the low-temperature and high-pressure part of the phase diagram, solid hydrogen…

超导电性 · 物理学 2023-11-14 Mehmet Dogan , Sehoon Oh , Marvin L. Cohen

CO2 conversion into value-added products has gained significant interest over the few last years, as the greenhouse gas concentrations constantly increase due to anthropogenic activities. Here we report on experiments for CO2 conversion by…

等离子体物理 · 物理学 2016-09-19 A Ozkan , Thierry Dufour , T Silva , N Britun , R Snyders , F Reniers , A Bogaerts

Solid solubility (SS) is one of the most important features of alloys, which is usually difficult to be largely tuned in the entire alloy concentrations by external approaches. Some alloys that were supposed to have promising physical…

材料科学 · 物理学 2020-02-12 Shiqiao Du , Jianfeng Wang , Lei Kang , Bing Huang , Wenhui Duan

Topological transition of the iso-frequency contour (IFC) from a closed ellipsoid to an open hyperboloid, will provide unique capabilities for controlling the propagation of light. However, the ability to actively tune these effects remains…

光学 · 物理学 2018-03-20 Zhiwei Guo , Haitao Jiang , Yong Sun , Yunhui Li , Hong Chen

We present the electrical transport characteristics of a batch of nano-crystalline diamond films of varying nitrogen concentrations and explain the conduction mechanism by the disordered quasi-superlattice model applied to semiconductor…

介观与纳米尺度物理 · 物理学 2015-06-05 George Chimowa , Dimitry Churochkin , Somnath Bhattacharyya

Plasmons can drive chemical reactions by directly exciting intramolecular transitions. However, strong coupling of plasmons to single molecules remains a challenge as ultra-small mode volumes are required. In the presented work, we propose…

Exceptionally high energy density by mass, natural abundance, widespread applications, and environmental friendliness make hydrogen (H2) a front-runner among clean energy options. However, the transition toward clean and renewable energy…

材料科学 · 物理学 2024-07-25 Wael Othman , Wadha Al Falasi , Tanveer Hussain , Nacir Tit

The layered transition metal dichalcogenide, TaSe2, exhibits rich electronic phenomena across its polymorphs, 1T, 2H, and 3R, largely driven by differences in atomic coordination and c-axis stacking. In the 1T phase, octahedral coordination…

超导电性 · 物理学 2026-02-13 Kusal Dharmasiri , Maxim Avdeev , Despina Louca

We consider single band of conduction electrons interacting with displacements of the transitional ions. In the classical regime strong enough coupling transforms the harmonic elastic energy for an ion to the one of the well with two deep…

超导电性 · 物理学 2015-06-04 Lev P. Gor'kov

Transition metal chromophores with earth-abundant transition metals are an important design target for their applications in lighting and non-toxic bioimaging, but their design is challenged by the scarcity of complexes that simultaneously…

化学物理 · 物理学 2022-09-16 Chenru Duan , Aditya Nandy , Gianmarco Terrones , David W. Kastner , Heather J. Kulik

Successful synthesis of the nitrogenated holey two-dimensional structures C2N (Nat. Commun. 2015, 6, 6486) using simply wet-chemical reaction offer a cost-effective way to generate other 2D materials with novel optical and electronic…

材料科学 · 物理学 2015-06-17 Ruiqi Zhang , Jinlong Yang

Cu-based electrocatalysts exhibits enormous potential for electrochemical CO2 conversion to added-value products. However, high selectivity, specially towards C2+ products, remains a critical challenge for its implementation in commercial…

材料科学 · 物理学 2025-02-20 Jiajun Hu , Silvio Osella , Josep Albero , Hermenegildo García

Monolayer transition metal dichalcogenides (TMDs) host deeply bound excitons interacting with itinerant electrons, and as such they represent an exciting new quantum many-body Bose-Fermi mixture. Here, we demonstrate that electrons…

超导电性 · 物理学 2022-10-24 Aleksi Julku , Jami J. Kinnunen , Arturo Camacho-Guardian , Georg M. Bruun

Membrane-electrode-assembly (MEA) cells with copper (Cu) cathodes show strong potential for electrochemical CO2 reduction to ethylene (C2H4), but achieving high C2H4 selectivity remains a challenge due to competing hydrogen evolution. This…

化学物理 · 物理学 2025-09-03 Tugrul Y. Ertugrul , Woong Choi , Adam Z. Weber , Alexis T. Bell

We observe an insulator-to-metal (I-M) transition in crystalline silicon doped with sulfur to non- equilibrium concentrations using ion implantation followed by pulsed laser melting and rapid resolidification. This I-M transition is due to…

材料科学 · 物理学 2015-05-27 Mark T. Winkler , Daniel Recht , Meng-Ju Sher , Aurore J. Said , Eric Mazur , Michael J. Aziz

The transition between gapped (semiconducting) and gapless (metallic) phases and tunability of bandgap in materials is a very lucrative yet considerably challenging goal for new-age device preparation. For bulk materials and for…

强关联电子 · 物理学 2022-02-08 Rudranil Basu , Swastibrata Bhattacharyya

The increase in anthropogenic carbon dioxide (CO$_2$) emissions has exacerbated the deterioration of the global environment, which should be controlled to achieve carbon neutrality. Central to the core goal of achieving carbon neutrality is…

化学物理 · 物理学 2022-06-14 Huabin Zhang , Xiaofei Zhang

Motivated by the resistive switchings in transition-metal oxides (TMOs) induced by a voltage bias, we study the far-from-equilibrium dynamics of an electric-field-driven strongly-correlated model featuring a first-order insulator-to-metal…

强关联电子 · 物理学 2023-05-26 Manuel I. Díaz , Jong E. Han , Camille Aron

We study metallic behavior and superconductivity in C$_{60}$ materials in terms of a tight binding model characterized by an intramolecular, nonretarded attraction. It was shown previously that, at intermediate coupling, the model possesees…

凝聚态物理 · 物理学 2007-05-23 Sanjoy K. Sarker

Electrocatalytic CO$_2$RR is an interfacial process, involving a minimum of three phases at the contact point of gaseous CO$_2$ with the electrodic surface and the liquid electrolyte. As a consequence, surface chemistry at composite…

材料科学 · 物理学 2022-12-09 Michele Melchionna , Paolo Fornasiero , Maurizio Prato , Marcella Bonchio