Found 6 papers in prb
Date of feed: Thu, 28 Dec 2023 04:16:58 GMT

Search terms: (topolog[a-z]+)|(graphit[a-z]+)|(rhombohedr[a-z]+)|(graphe[a-z]+)|(chalcog[a-z]+)|(landau)|(weyl)|(dirac)|(STM)|(scan[a-z]+ tunne[a-z]+ micr[a-z]+)|(scan[a-z]+ tunne[a-z]+ spectr[a-z]+)|(scan[a-z]+ prob[a-z]+ micr[a-z]+)|(MoS.+\d+|MoS\d+)|(MoSe.+\d+|MoSe\d+)|(MoTe.+\d+|MoTe\d+)|(WS.+\d+|WS\d+)|(WSe.+\d+|WSe\d+)|(WTe.+\d+|WTe\d+)|(Bi\d+Rh\d+I\d+|Bi.+\d+.+Rh.+\d+.+I.+\d+.+)|(BiTeI)|(BiTeBr)|(BiTeCl)|(ZrTe5|ZrTe.+5)|(Pt2HgSe3|Pt.+2HgSe.+3)|(jacuting[a-z]+)|(flatband)|(flat.{1}band)|(LK.{1}99)

Understanding the role of Hubbard corrections in the rhombohedral phase of ${\mathrm{BaTiO}}_{3}$
G. Gebreyesus, Lorenzo Bastonero, Michele Kotiuga, Nicola Marzari, and Iurii Timrov
Author(s): G. Gebreyesus, Lorenzo Bastonero, Michele Kotiuga, Nicola Marzari, and Iurii Timrov

We present a first-principles study of the low-temperature rhombohedral phase of ${\mathrm{BaTiO}}_{3}$ using Hubbard-corrected density-functional theory. By employing density-functional perturbation theory, we compute the onsite Hubbard $U$ for $\mathrm{Ti}(3d)$ states and the intersite Hubbard $V$…


[Phys. Rev. B 108, 235171] Published Wed Dec 27, 2023

Shear viscosity expression for a graphene system in relaxation time approximation
Cho Win Aung, Thandar Zaw Win, Gaurav Khandal, and Sabyasachi Ghosh
Author(s): Cho Win Aung, Thandar Zaw Win, Gaurav Khandal, and Sabyasachi Ghosh

We have gone through the detailed microscopic calculation of the shear viscosity of a 2-dimensional graphene system in the relaxation time approximation–based kinetic theory framework. After getting its final expressions, we compared it with the shear viscosity expressions of other possible 2-dimens…


[Phys. Rev. B 108, 235172] Published Wed Dec 27, 2023

Coexistence of Dirac fermion and charge density wave in the square-net-based semimetal ${\mathrm{LaAuSb}}_{2}$
Xueliang Wu, Zhixiang Hu, David Graf, Yu Liu, Chaoyue Deng, Huixia Fu, Asish K. Kundu, Tonica Valla, Cedomir Petrovic, and Aifeng Wang
Author(s): Xueliang Wu, Zhixiang Hu, David Graf, Yu Liu, Chaoyue Deng, Huixia Fu, Asish K. Kundu, Tonica Valla, Cedomir Petrovic, and Aifeng Wang

We report a comprehensive study of magnetotransport properties, angle-resolved photoemission spectroscopy (ARPES), and density functional theory (DFT) calculations on self-flux grown ${\mathrm{LaAuSb}}_{2}$ single crystals. Resistivity and Hall measurements reveal a charge density wave (CDW) transit…


[Phys. Rev. B 108, 245156] Published Wed Dec 27, 2023

Correcting charged supercell defect calculations in low-dimensional semiconductors
Chen Zhang, Lei Yan, Chen Qiu, Cai-Xin Zhang, Tao Shen, Su-Huai Wei, and Hui-Xiong Deng
Author(s): Chen Zhang, Lei Yan, Chen Qiu, Cai-Xin Zhang, Tao Shen, Su-Huai Wei, and Hui-Xiong Deng

Accurate predictions of the nature of defects in low-dimensional materials are essential to enable and promote their applications in micro- and optoelectronic devices. However, when dealing with charged defects in low-dimensional semiconductors, conventional first-principles calculations based on th…


[Phys. Rev. B 108, 245305] Published Wed Dec 27, 2023

Inhomogeneous excitation-regulated coherent strain wave in $2H\text{−}\mathrm{Mo}{\mathrm{Te}}_{2}$ revealed by ultrafast electron microscopy
Yongzhao Zhang, Shuaishuai Sun, Wentao Wang, Huanfang Tian, Jianqi Li, Jun Li, and Huaixin Yang
Author(s): Yongzhao Zhang, Shuaishuai Sun, Wentao Wang, Huanfang Tian, Jianqi Li, Jun Li, and Huaixin Yang

The potential to manipulate the coherent photoacoustic wave in 2H-MoTe2 is demonstrated here by adjusting the homogeneity of laser excitation. Homogeneous excitation results in out-of-phase intensity oscillations of the Friedel pairs, and only the fundamental frequency is detected. In contrast, inhomogeneous excitation leads to in-phase intensity oscillations and the emergence of a second harmonic component. These ultrafast electron diffraction results reveal that, as the flake thickness increases, the photoacoustic wave transforms from a standing wave with breathing motions to a soliton-like traveling wave.


[Phys. Rev. B 108, 245426] Published Wed Dec 27, 2023

Stable higher-order topological Dirac semimetals with ${\mathbb{Z}}_{2}$ monopole charge in alternating-twist multilayer graphene and beyond
Shifeng Qian, Yongpan Li, and Cheng-Cheng Liu
Author(s): Shifeng Qian, Yongpan Li, and Cheng-Cheng Liu

We demonstrate that a class of stable ${\mathbb{Z}}_{2}$ monopole charge Dirac point (${\mathbb{Z}}_{2}\mathrm{DP}$) phases can robustly exist in real materials, which is counterintuitive: that is, a ${\mathbb{Z}}_{2}\mathrm{DP}$ is unstable and generally considered to be only the critical point of …


[Phys. Rev. B 108, L241406] Published Wed Dec 27, 2023

Found 3 papers in prl
Date of feed: Thu, 28 Dec 2023 04:16:55 GMT

Search terms: (topolog[a-z]+)|(graphit[a-z]+)|(rhombohedr[a-z]+)|(graphe[a-z]+)|(chalcog[a-z]+)|(landau)|(weyl)|(dirac)|(STM)|(scan[a-z]+ tunne[a-z]+ micr[a-z]+)|(scan[a-z]+ tunne[a-z]+ spectr[a-z]+)|(scan[a-z]+ prob[a-z]+ micr[a-z]+)|(MoS.+\d+|MoS\d+)|(MoSe.+\d+|MoSe\d+)|(MoTe.+\d+|MoTe\d+)|(WS.+\d+|WS\d+)|(WSe.+\d+|WSe\d+)|(WTe.+\d+|WTe\d+)|(Bi\d+Rh\d+I\d+|Bi.+\d+.+Rh.+\d+.+I.+\d+.+)|(BiTeI)|(BiTeBr)|(BiTeCl)|(ZrTe5|ZrTe.+5)|(Pt2HgSe3|Pt.+2HgSe.+3)|(jacuting[a-z]+)|(flatband)|(flat.{1}band)|(LK.{1}99)

Higher-Order Topological Peierls Insulator in a Two-Dimensional Atom-Cavity System
Joana Fraxanet, Alexandre Dauphin, Maciej Lewenstein, Luca Barbiero, and Daniel González-Cuadra
Author(s): Joana Fraxanet, Alexandre Dauphin, Maciej Lewenstein, Luca Barbiero, and Daniel González-Cuadra

In this work, we investigate a two-dimensional system of ultracold bosonic atoms inside an optical cavity, and show how photon-mediated interactions give rise to a plaquette-ordered bond pattern in the atomic ground state. The latter corresponds to a 2D Peierls transition, generalizing the spontaneo…


[Phys. Rev. Lett. 131, 263001] Published Wed Dec 27, 2023

Exact Large-Scale Fluctuations of the Phase Field in the Sine-Gordon Model
Giuseppe Del Vecchio Del Vecchio, Márton Kormos, Benjamin Doyon, and Alvise Bastianello
Author(s): Giuseppe Del Vecchio Del Vecchio, Márton Kormos, Benjamin Doyon, and Alvise Bastianello

We present the first exact theory and analytical formulas for the large-scale phase fluctuations in the sine-Gordon model, valid in all regimes of the field theory, for arbitrary temperatures and interaction strengths. Our result is based on the ballistic fluctuation theory combined with generalized…


[Phys. Rev. Lett. 131, 263401] Published Wed Dec 27, 2023

Number of Attractors in the Critical Kauffman Model Is Exponential
T. M. A. Fink and F. C. Sheldon
Author(s): T. M. A. Fink and F. C. Sheldon

The Kauffman model is the archetypal model of genetic computation. It highlights the importance of criticality, at which many biological systems seem poised. In a series of advances, researchers have honed in on how the number of attractors in the critical regime grows with network size. But a defin…


[Phys. Rev. Lett. 131, 267402] Published Wed Dec 27, 2023

Found 2 papers in pr_res
Date of feed: Thu, 28 Dec 2023 04:16:56 GMT

Search terms: (topolog[a-z]+)|(graphit[a-z]+)|(rhombohedr[a-z]+)|(graphe[a-z]+)|(chalcog[a-z]+)|(landau)|(weyl)|(dirac)|(STM)|(scan[a-z]+ tunne[a-z]+ micr[a-z]+)|(scan[a-z]+ tunne[a-z]+ spectr[a-z]+)|(scan[a-z]+ prob[a-z]+ micr[a-z]+)|(MoS.+\d+|MoS\d+)|(MoSe.+\d+|MoSe\d+)|(MoTe.+\d+|MoTe\d+)|(WS.+\d+|WS\d+)|(WSe.+\d+|WSe\d+)|(WTe.+\d+|WTe\d+)|(Bi\d+Rh\d+I\d+|Bi.+\d+.+Rh.+\d+.+I.+\d+.+)|(BiTeI)|(BiTeBr)|(BiTeCl)|(ZrTe5|ZrTe.+5)|(Pt2HgSe3|Pt.+2HgSe.+3)|(jacuting[a-z]+)|(flatband)|(flat.{1}band)|(LK.{1}99)

Beating-free quantum oscillations in two-dimensional electron gases with strong spin-orbit and Zeeman interactions
Denis R. Candido, Sigurdur I. Erlingsson, Hamed Gramizadeh, João Vitor I. Costa, Pirmin J. Weigele, Dominik M. Zumbühl, and J. Carlos Egues
Author(s): Denis R. Candido, Sigurdur I. Erlingsson, Hamed Gramizadeh, João Vitor I. Costa, Pirmin J. Weigele, Dominik M. Zumbühl, and J. Carlos Egues

Shubnikov-de Haas (SdH) oscillations are the fingerprint of the Landau and Zeeman splitting level structure on the resistivity in presence of a moderate magnetic field before full quantization is manifest in the integer quantum Hall effect. These oscillations have served as a paradigmatic experiment…


[Phys. Rev. Research 5, 043297] Published Wed Dec 27, 2023

Branched flows in active random walks and the formation of ant trail patterns
King Hang Mok and Ragnar Fleischmann
Author(s): King Hang Mok and Ragnar Fleischmann

Branched flow governs the transition from ballistic to diffusive motion of waves and conservative particle flows in spatially correlated random or complex environments. It occurs in many physical systems from micrometer to interstellar scales. In living matter systems, however, this transport regime…


[Phys. Rev. Research 5, 043299] Published Wed Dec 27, 2023