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相关论文: Borane Derivatives: A New Class as Super and Hyper…

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Superhalogens are species whose electron affinity (EA) or vertical detachment energy (VDE) exceed to those of halogen. These species typically consist of a central electropositive atom with electronegative ligands. The EA or VDE of species…

化学物理 · 物理学 2018-01-09 Ambrish Kumar Srivastava , Neeraj Misra

Superhalogens have been a subject of continuous attraction for the last four decades due to their unusual structures and interesting applications. In the quest for new superhalogens based on boronyl (BO) ligands, we investigate…

原子与分子团簇 · 物理学 2022-04-06 Ambrish Kumar Srivastava

Using first principles calculations, we show the high hydrogen storage capacity of a new class of compounds, metalloboranes. Metalloboranes are transition metal (TM) and borane compounds that obey a novel-bonding scheme. We have found that…

材料科学 · 物理学 2015-12-08 A. R. Akbarzadeh , D. Vrinceanu , C. J. Tymczak

Metal hydrogen exhibiting electron delocalization properties has been recognized as an important prospect for achieving controlled nuclear fusion, but the extreme pressure conditions required exceeding hundreds of GPa remain a daunting…

计算物理 · 物理学 2025-06-05 Jia Fan , Chenxi Wan , Rui Liu , Zhen Gong , Hongbo Jing , Baiqiang Liu , Siyang Liu , Zhigang Wang

A possibility of high, room-temperature superconductivity was predicted for metallic hydrogen in the 1960s. However, metallization and superconductivity of hydrogen are yet to be unambiguously demonstrated in the laboratory and may require…

A superhalogen $\rm{F@C_{20}(CN)_{20}}$ and a corresponding Br{\o}nsted superacid were designed and investigated on DFT and DLPNO-CCSD(T) levels of theory. Calculated compounds have outstanding electron affinity and deprotonation energy,…

化学物理 · 物理学 2019-05-28 Andrey V. Kulsha , Dmitry I. Sharapa

Bechgaard salts, (TMTSF)2X (TMTSF = tetramethyl tetraselenafulvalene and X = complex anion), form the most popular series of organic superconductors. In these salts, TMTSF molecules act as super-electron donor and X as acceptor. We…

化学物理 · 物理学 2018-01-09 Ambrish K. Srivastava , Abhishek Kumar , Sugriva N. Tiwari , Neeraj Misra

The recent discoveries of many metal superhydrides provide a new route to room-temperature superconductors. However, their stability and structure trends and the large chemical driving force needed to dissociate H2 molecules and form H…

材料科学 · 物理学 2021-10-11 Yuanhui Sun , Maosheng Miao

Metal superhydrides, known for their high hydrogen content and polyhedral hydrogen cages, are promising candidates for high-temperature superconductivity. Recent research has emphasized "chemical pre-compression," enabling hydrogen…

超导电性 · 物理学 2025-03-06 Yuanhui Sun , Maosheng Miao

It has been suggested that hydrogen may metallise at lower pressures if it is ``precompressed''. Here we introduce a search strategy for predicting high-pressure structures and apply it to silane using first-principles electronic structure…

材料科学 · 物理学 2009-11-11 Chris J. Pickard , R. J. Needs

Despite being usually considered two competing phenomena, charge-density-wave and superconductivity coexist in few systems, the most emblematic one being the transition metal dichalcogenide 2H-NbSe$_2$. This unusual condition is responsible…

Superconducting high-entropy alloys (HEAs) are a newly burgeoning field of unconventional superconductors and raise intriguing questions about the presence of superconductivity in highly disordered systems, which lack regular phonon modes.…

超导电性 · 物理学 2023-05-16 K. Motla , Arushi , S. Jangid , P. Meena , R. K. Kushwaha , R. P. Singh

We investigate a range of possible materials containing the supermolecular form of hydrogen comprising 13 hydrogen molecules arranged in an icosahedral arrangement. This supermolecule consists of freely rotating 12 hydrogen molecules in an…

材料科学 · 物理学 2019-05-10 Graeme J. Ackland , Jack Binns , Ross Howie , Miguel Martinez-Canales

High-order harmonic generation (HHG) is a powerful tool for probing electronic structure and ultrafast dynamics in matter. Traditionally studied in atomic and molecular gases, HHG has recently been extended to condensed matter, enabling…

Recently,a noticeable progress had been achieved in the area of high temperature superconductors. The maximum temperature of 250K for LaH(10) and 288K for CSH(8) were reported at the megabar pressures. The highest possible temperatures were…

量子物理 · 物理学 2022-03-31 Arkady L. Kholodenko

Borophene stands out among elemental two-dimensional materials due to its extraordinary physical properties, including structural polymorphism, strong anisotropy, metallicity, and the potential for phonon-mediated superconductivity.…

超导电性 · 物理学 2024-08-12 Božidar N. Šoškić , Jonas Bekaert , Cem Sevik , Milorad V. Milošević

We investigate the magnetic properties of nano-holes (NHs) patterned in graphene using first principles calculations. We show that superlattices consisting of a periodic array of NHs form a new family of 2D crystalline "bulk" magnets whose…

计算物理 · 物理学 2010-08-09 Decai Yu , Elizabeth M. Lupton , Miao Liu , Wei Liu , Feng Liu

The term superalkali refers to the clusters with lower ionization energy than alkali atoms. Typical superalkali cations include a central electronegative core with excess metal ligands, OLi3+, for instance, which mimic the properties of…

化学物理 · 物理学 2019-01-17 Ambrish Kumar Srivastava

New crystal structures of fully hydrogenated borophene (borophane) have been predicted by first principles calculation. Comparing with the chair-like borophane (C-boropane) that has been reported in literature, we obtained four new…

材料科学 · 物理学 2017-05-24 Zhi-Qiang Wang , Tie-Yu Lü , Hui-Qiong Wang , Yuan Ping Feng , Jin-Cheng Zheng

We identify a new family of boron-rich compounds consisting of interconnected B$_{12}$ icosahedra, and electropositive guest atoms ($X$) in interstitial sites. These structures were found through first-principles crystal structure…

超导电性 · 物理学 2026-05-15 Simone Di Cataldo , Antonio Sanna , Lilia Boeri
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