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Using density functional theory calculations we show that the recently-synthesized, superhard diamond-like BC$_5$ is superconducting with a critical temperature of the same order than that of MgB$_2$. The average electron-phonon coupling is…

Superconductivity · Physics 2009-11-13 Matteo Calandra , Francesco Mauri

We employ the diagrammatic Monte Carlo method with a lattice path-integral formulation for both electron and phonon degrees of freedom to investigate the formation and properties of bond polarons and bipolarons on a two-dimensional…

Superconductivity · Physics 2025-07-11 Chao Zhang

We theoretically study the influence of impurity scattering on the electric and thermal transport of borophane layer, a two-dimensional anisotropic Dirac semi-metal with two tilted and anisotropic Dirac cones. In a systematic framework, we…

Mesoscale and Nanoscale Physics · Physics 2019-06-19 Moslem Zare

We study the mechanical properties of two-dimensional (2D) boron, borophenes, by first-principles calculations. The recently synthesized borophene with 1/6 concentration of hollow hexagons (HH) is shown to have in-plane modulus C up to 210…

Materials Science · Physics 2017-01-12 Zhuhua Zhang , Yang Yang , Evgeni S. Penev , Boris I. Yakobson

The synthesis of materials in high-pressure experiments has recently attracted increasing attention, especially since the discovery of record breaking superconducting temperatures in the sulfur-hydrogen and other hydrogen-rich systems.…

Materials Science · Physics 2016-10-03 Maximilian Amsler , S. Shahab Naghavi , Chris Wolverton

The superconducting and structural properties of a series of Mg1-xAlxB2 samples have been investigated. X-ray diffraction results confirmed the existence of a structural transition associated with the significant change in inter-boron layer…

Superconductivity · Physics 2009-11-07 J. Y. Xiang , D. N. Zheng , J. Q. Li , L. Li , P. L. Lang , H. Chen , C. Dong , G. C. Che , Z. A. Ren , H. H. Qi , H. Y. Tian , Y. M. Ni , Z. X. Zhao

Carbon's versatility allows it to form diverse structures with unique properties, driven by its moderate electronegativity, small ionic radius, and ability to adopt \textit{sp}, \textit{sp\textsuperscript{2}}, and…

Delithiation of the known layered LiBC compound was predicted to induce conventional superconductivity at liquid nitrogen temperatures but extensive experimental work over the past two decades has detected no signs of the expected…

The discovery of superconductivity in MgB$_2$ (\(T_c = 39\) K) \cite{nagamatsu2001superconductivity} established metal diborides (MB$_2$) as a promising class of conventional superconductors. Recent advances in fabrication techniques have…

Superconductivity · Physics 2026-04-08 Jakkapat Seeyangnok , Udomsilp Pinsook , Graeme J. Ackland

We have grown single-crystal BiSbTe3 3D TI sample and studied structural, TE as well as pressure dependent magneto-transport properties. Large positive Seebeck coefficient confirmed the p-type nature of BiSbTe3, which is consistent with…

By means of the first-principles density-functional theory calculation and Wannier interpolation, electron-phonon coupling and superconductivity are systematically explored for boron-doped LiBC (i.e. LiB$_{1+x}$C$_{1-x}$), with $x$ between…

Superconductivity · Physics 2018-06-29 Qi-Zhi Li , Xun-Wang Yan , Miao Gao , Jun Wang

The electronic structure, lattice dynamics, and electron-phonon coupling of the boron-doped diamond are investigated using the density functional supercell method. Our results indicate the boron-doped diamond is a phonon mediated…

Superconductivity · Physics 2007-05-23 H. J. Xiang , Zhenyu Li , Jinlong Yang , J. G. Hou , Qingshi Zhu

We have studied the mechanical properties and phonon dispersions of fully hydrogenated borophene (borophane) under strains by first principles calculations. Uniaxial tensile strains along the a- and b-direction, respectively, and biaxial…

Materials Science · Physics 2016-11-28 Zhiqiang Wang , Tie-Yu Lü , Hui-Qiong Wang , Yuan-Ping Feng , Jin-Cheng Zheng

Recently, a host/guest clathrate SrB3C3 with sp3-bonded boron-carbon framework was synthesized at around 50 GPa. On the basis of electron count, the structure is understood as guest Sr2+ cations intercalated in the (B3C3)3- framework.…

Materials Science · Physics 2022-03-23 Peiyu Zhang , Xue Li , Xin Yang , Hui Wang , Hanyu Liu , Yansun Yao

Hydrogen, a simple and magic element, has attracted increasing attention for its effective incorporation within solids and powerful manipulation of electronic states. Here, we show that hydrogenation tackles common problems in…

Mesoscale and Nanoscale Physics · Physics 2023-02-10 Botao Fu , Run-Wu Zhang , Xiaotong Fan , Si Li , Da-Shuai Ma , Cheng-Cheng Liu

Quasi one dimensional materials provide a compelling platform where reduced dimensionality stabilizes intertwined topological and superconducting phases. Here we report superconductivity in a new Bi based quasi 1D compound, PtPb3Bi, which…

8K superconductivity was observed in the metal rich Li-Pd-B ternary system. Structural, microstructural, electrical and magnetic investigations for various compositions proved that Li2Pd3B compound, which has a cubic structure composed of…

Superconductivity · Physics 2009-11-10 K. Togano , P. Badica , Y. Nakamori , S. Orimo , H. Takeya , K. Hirata

Superconductivity of boron-doped diamond, reported recently at T_c=4 K, is investigated exploiting its electronic and vibrational analogies to MgB2. The deformation potential of the hole states arising from the C-C bond stretch mode is 60%…

Superconductivity · Physics 2007-05-23 K. -W. Lee , W. E. Pickett

The electronic and phonon transport properties of graphene-like boron phosphide (BP), boron arsenide (BAs), and boron antimonide (BSb) monolayers are investigated using first-principles calculations and Boltzmann theory. By considering both…

Materials Science · Physics 2019-07-24 Z. Z. Zhou , H. J. Liu , D. D. Fan , G. H. Cao

Borophene, an atomically thin, corrugated, crystalline two-dimensional boron sheet, has been recently synthesized. We investigate mechanical properties and lattice thermal conductivity of borophene via reactive molecular dynamics…

Materials Science · Physics 2017-07-05 Bohayra Mortazavi , Minh-Quy Le , Timon Rabczuk , Luiz Felipe C. Pereira