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相关论文: Finite temperature spectral function of Mott insul…

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The charge density wave (CDW) phase in 1$T$-TiSe$_2$ is investigated using angle resolved photoemission spectroscopy (ARPES) and neutron scattering measurements. Our ARPES results reveal a clear temperature dependence of the chemical…

强关联电子 · 物理学 2018-07-17 A. Wegner , J. Zhao , J. Li , J. Yang , A. A. Anikin , G. Karapetrov , D. Louca , U. Chatterjee

The transition metal dichalcogenide 1T-TaS$_2$ is well known to harbor a rich variety of charge density wave (CDW) distortions which are correlated with underlying lattice atom modulations. The long range CDW phases extend throughout the…

材料科学 · 物理学 2017-05-24 Xiaochen Zhu , Ang J. Li , G. R. Stewart , Arthur F. Hebard

The charge density wave (CDW) state in van der Waals systems shows interesting scaling phenomena as the number of layers can significantly affect the CDW transition temperature, $T_{CDW}$. However, it is often difficult to use conventional…

We show theoretically the fingerprints of short-range spiral magnetic correlations in the photoemission spectra of the Mott insulating ground states realized in the triangular silicon surfaces K/Si(111)-B and SiC(0001). The calculated…

强关联电子 · 物理学 2009-11-07 L. O. Manuel , C. J. Gazza , A. E. Feiguin , A. E. Trumper

Charge density wave (CDW) is a unique phenomenon mostly realized in two-dimensional (2D) metallic layered transition metal dichalcogenides (TMDCs). Here, we report on Raman spectroscopy of single crystal 1T-VSe2 and observed signature of…

材料科学 · 物理学 2020-07-24 Juhi Pandey , Ajay Soni

We theoretically investigate the thermoelectric properties (electronic contribution) of a hybrid structure comprising of an inversion symmetry broken Weyl semimetal (WSM) and intrinsic Weyl superconductor (WSC) with $s$-wave pairing,…

介观与纳米尺度物理 · 物理学 2023-05-31 Ruchi Saxena , Nirnoy Basak , Pritam Chatterjee , Sumathi Rao , Arijit Saha

We investigate the optical properties of one-dimensional (1D) dimerized Mott insulators using the 1D dimerized extended Hubbard model. Numerical calculations and a perturbative analysis from the decoupled-dimer limit clarify that there are…

强关联电子 · 物理学 2009-11-13 Nobuya Maeshima , Kenji Yonemitsu

We report a low-temperature scanning tunneling microscopy study of the charge density wave (CDW) order in 1$T$-TiSe$_2$ and Cu$_{0.08}$TiSe$_2$. In pristine 1$T$-TiSe$_2$ we observe a long-range coherent commensurate CDW (C-CDW) order. In…

超导电性 · 物理学 2017-03-14 Shichao Yan , Davide Iaia , Emilia Morosan , Eduardo Fradkin , Peter Abbamonte , Vidya Madhavan

The chain-like $ZrTe_3$ compound undergoes a charge-density-wave (CDW) transition at $T_{CDW}=63$ $K$, most strongly affecting the conductivity perpendicular to the chains. We measure the temperature ($T$) dependence of the optical…

强关联电子 · 物理学 2012-01-11 A. Perucchi , L. Degiorgi , H. Berger

We calculate the long time and distance asymptotics of the one-particle correlation functions in the model of impenetrable spin 1/2 fermions in 1+1 dimensions. We consider the spin disordered zero temperature regime, which occurs when the…

强关联电子 · 物理学 2009-11-10 Vadim V Cheianov , M B Zvonarev

We study a system of fermions in one spatial dimension with linearly confining interactions and short-range disorder. We focus on the zero temperature properties of this system, which we characterize using bosonization and the Gaussian…

无序系统与神经网络 · 物理学 2018-05-22 Yang-Zhi Chou , Rahul M. Nandkishore , Leo Radzihovsky

Combination of the finite-temperature density-matrix renormalization-group and the maximum entropy presents a new method to calculate dynamic quantities of one-dimensional many-body systems. In the present paper, density of states, local…

强关联电子 · 物理学 2009-10-31 Tetsuya Mutou , Naokazu Shibata , Kazuo Ueda

We investigate collective effects in the strong pinning model of disordered charge and spin density waves (CDWs and SDWs) in connection with heat relaxation experiments. We discuss the classical and quantum limits that contribute to two…

无序系统与神经网络 · 物理学 2007-05-23 R. Mélin , K. Biljakovic , J. C. Lasjaunias

We report a Raman scattering study of low-temperature, pressure-induced melting of the CDW phase of 1T-TiSe2. Our Raman scattering measurements reveal that the collapse of the CDW state occurs in three stages: (i) For P<5 kbar, the pressure…

强关联电子 · 物理学 2009-11-10 C. S. Snow , J. F. Karpus , S. L. Cooper , T. E. Kidd , T. -C. Chiang

We observe unidirectional charge density wave ordering on the cleaved surface of TbTe3 with a Scanning Tunneling Microscope at ~6 K. The modulation wave-vector q_{CDW} as determined by Fourier analysis is 0.71 +/- 0.02 * 2 pi/c. (Where c is…

其他凝聚态物理 · 物理学 2009-11-13 A. Fang , N. Ru , I. R. Fisher , A. Kapitulnik

The temperature dependence of the electrical resistivity in insulator systems with a Coulomb gap in the density of states is expressed by a very simple function which coincides with the Efros-Shklovskii T^(-1/2)result, at temperatures lower…

材料科学 · 物理学 2010-06-15 J. F. Sampaio , A. Aparecido-Ferreira

We present time-dependent density matrix renormalization group (DMRG) results for strongly interacting one dimensional fermionic systems at finite temperature. When interactions are strong the characteristic spin energy can be greatly…

强关联电子 · 物理学 2010-02-18 A. E. Feiguin , G. A. Fiete

Warm inflation in the non minimal derivative coupling model with a general dissipation coefficient is considered. We investigate conditions for the existence of the slow roll approximation and study cosmological perturbations. The spectral…

广义相对论与量子宇宙学 · 物理学 2017-03-08 H. Mohseni Sadjadi , Parviz Goodarzi

A complete experimental study of temperature dependence of the total spectral emissivity has been performed, for the first time, for absorber reflector selective coatings used in concentrated solar power (CSP) systems for energy harvesting.…

An understanding of the anomalous charge dynamics in the high-Tc cuprates is obtained based on a model study of doped Mott insulators. The high-temperature optical conductivity is found to generally have a two-component structure: a Drude…

强关联电子 · 物理学 2007-09-16 Zheng-Cheng Gu , Zheng-Yu Weng
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