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We have developed an efficient and reliable methodology for crystal structure prediction, merging ab initio total-energy calculations and a specifically devised evolutionary algorithm. This method allows one to predict the most stable…

材料科学 · 物理学 2009-11-18 A. R. Oganov , C. W. Glass

We study feature selection in high-dimensional regression under two distinct sources of instability: sampling variability and measurement error in the design matrix. Stability Selection addresses the former through sub-sampling and…

统计方法学 · 统计学 2026-05-05 Mahdi Nouraie , Houying Zhu , Samuel Muller

In the present paper, we investigate the structural, thermodynamic, dynamic, elastic, and electronic properties of doped 2D diamond C$_4$X$_2$ (X = B or N) nanosheets in both AA$'$A$''$ and ABC stacking configurations, by first-principles…

材料科学 · 物理学 2024-01-10 Bruno Ipaves , João F. Justo , Biplab Sanyal , Lucy V. C. Assali

In order to understand the unexpected superconducting behavior of MgB$_2$ compound we have made electronic structure calculations for MgB$_2$ and closely related systems. Our calculated Debye temperature from the elastic properties indicate…

超导电性 · 物理学 2009-11-07 P. Ravindran , P. Vajeeston , R. Vidya , A. Kjekshus , H. Fjellvåg

An identification of a spherically symmetric potential by its phase shifts is an important physical problem. Recent theoretical results assure that such a potential is uniquely defined by a sufficiently large subset of its phase shifts at…

数学物理 · 物理学 2016-09-07 Semion Gutman , Alexander G. Ramm

This work presents a detailed study of the electronic structure, phonon dispersion, Z2 invariant calculation, and Fermi surface of the newly discovered kagome superconductor CsV3Sb5, using density functional theory (DFT). The phonon…

强关联电子 · 物理学 2024-10-18 Shalika R. Bhandari , Mohd Zeeshan , Vivek Gusain , Keshav Shrestha , D. P. Rai

Defects in solid-state materials play a central role in determining coherence, stability, and performance in quantum technologies. Although narrowband techniques can probe specific resonances with high precision, a broadband spectroscopic…

Mono- and bi-alkali antimonides, X$_2$YSb (X and Y from Group I), are promising for next-generation electron emitters due to their capability of producing high-quality electron beams. However, these materials are not yet well understood, in…

材料科学 · 物理学 2022-05-31 J. K. Nangoi , M. Gaowei , A. Galdi , J. M. Maxson , S. Karkare , J. Smedley , T. A. Arias

Owing to the fascinating physical characteristics of two-dimensional (2D) materials and their heterostructure, much effort has been devoted to exploring their basic physical properties as well as discovering other novel 2D materials.…

材料科学 · 物理学 2020-07-13 Seungjun Lee , Young-Kyun Kwon

The combination of data science and materials informatics has significantly propelled the advancement of multi-component compound synthesis research. This study employs atomic-level data to predict miscibility in binary compounds using…

材料科学 · 物理学 2024-09-05 Chiwen Feng , Yanwei Liang , Jiaying Sun , Renhai Wang , Huaijun Sun , Huafeng Dong

Understanding and simulating the thermodynamic and dynamical properties of materials affected by strong ionic anharmonicity is a central challenge in material science. Much interest is in material displaying critical displacive behaviour,…

材料科学 · 物理学 2025-04-18 Lorenzo Monacelli

By performing high-throughput first-principles calculations combined with a semiempirical van der Waals dispersion correction, we have screened 74 direct- and 185 indirect-gap two dimensional (2D) nonmagnetic semiconductors from near 1000…

介观与纳米尺度物理 · 物理学 2022-12-12 Vei Wang , Gang Tang , Ren-Tao Wang , Ya-Chao Liu , Hiroshi Mizuseki , Yoshiyuki Kawazoe , Jun Nara , Wen-Tong Geng

Due to their ability to recognize complex patterns, neural networks can drive a paradigm shift in the analysis of materials science data. Here, we introduce ARISE, a crystal-structure identification method based on Bayesian deep learning.…

材料科学 · 物理学 2021-11-09 Andreas Leitherer , Angelo Ziletti , Luca M. Ghiringhelli

Employing density functional theory based calculations, we investigate structural, vibrational and strain-dependent electronic properties of an ultra-thin CdTe crystal structure that can be de- rived from its bulk counterpart. It is found…

介观与纳米尺度物理 · 物理学 2017-11-15 Fadil Iyikanat , Baris Akbali , Jun Kang , R. Tugrul Senger , Yusuf Selamet , Hasan Sahin

Due to the subtle balance of intermolecular interactions that govern structure-property relations, predicting the stability of crystal structures formed from molecular building blocks is a highly non-trivial scientific problem. A…

化学物理 · 物理学 2022-12-26 Rose K. Cersonsky , Maria Pakhnova , Edgar A. Engel , Michele Ceriotti

The 100 MW cryogenic liquid oxygen/hydrogen multi-injector combustor BKD operated by the DLR Institute of Space Propulsion is a research platform that allows the study of thermoacoustic instabilities under realistic conditions,…

The discovery of two-dimensional (2D) van der Waals (vdW) materials often provides interesting playgrounds to explore novel phenomena. One of the missing components in 2D vdW materials is the intrinsic heavy-fermion systems, which can…

强关联电子 · 物理学 2022-06-02 Bo Gyu Jang , Changhoon Lee , Jian-Xin Zhu , Ji Hoon Shim

CsPb2Br5 is a stable, water-resistant, material derived from CsPbBr3 perovskite and featuring two-dimensional Pb-Br framework separated by Cs layers. Both compounds can coexist at nano- length scale, which often produces conflicting optical…

材料科学 · 物理学 2018-12-07 V. G. Hadjiev , C. Wang , Y. Wang , X. Su , H. A. Calderon , F. Robles Hernandez , Z. M. Wang , J. M. Bao

We show that interacting bosons on a ring which are driven periodically by a rotating potential can support discrete time crystals whose absolute stability can be proven. The absolute stability is demonstrated by an exact mapping of…

量子气体 · 物理学 2023-11-29 Krzysztof Giergiel , Jia Wang , Bryan J. Dalton , Peter Hannaford , Krzysztof Sacha

Polycrystalline boron-doped diamond (BDD) is widely used as a working electrode material in electrochemistry, and its properties, such as its stability, make it an appealing support material for nanostructures for electrocatalytic…

材料科学 · 物理学 2023-06-13 Shayantan Chaudhuri , Andrew J. Logsdail , Reinhard J. Maurer