Zobrazeno 1 - 10
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pro vyhledávání: '"QIANG Hua"'
The recent experiment shows the superconducting transition temperature in the Ruddlesden-Popper bilayer La$_3$Ni$_2$O$_{7}$ decreases monotonically with increasing pressure above 14 GPa. In order to unravel the underlying mechanism for this unusual d
Externí odkaz:
http://arxiv.org/abs/2409.17861
Pair density wave (PDW) is an intriguing quantum matter proposed in the frontier of condensed matter physics. However, the existence of PDW in microscopic models has been rare. In this work, we obtain, by Ginzburg-Landau arguments and self-consistent
Externí odkaz:
http://arxiv.org/abs/2408.03056
Autor:
Hou, Zhiyong, Chen, Kailun, Hong, Wenshan, Wang, Da, Duan, Wen, Yang, Huan, Li, Shiliang, Luo, Huiqian, Wang, Qiang-Hua, Xiang, Tao, Wen, Hai-Hu
Vortex is a topological defect in the superconducting condensate when a magnetic field is applied to a type-II superconductor, as elucidated by the Ginzburg-Landau theory. Due to the confinement of the quasiparticles by a vortex, it exhibits a circul
Externí odkaz:
http://arxiv.org/abs/2407.08547
Publikováno v:
Phys. Rev. B 109, L180508 (2024)
Isotope effect with a large coefficient $\alpha=-\partial \ln T_c/\partial \ln M$ is usually taken as an evidence of phonon mediated superconductors in the Bardeen-Cooper-Schrieffer (BCS) theory. However, in cuprates which are now widely believed to
Externí odkaz:
http://arxiv.org/abs/2405.16138
Publikováno v:
Sci. China Phys. Mech. Astron. 67, 267412 (2024)
The bound states around a vortex in anisotropic superconductors is a longstanding yet important issue. In this work, we develop a variational theory on the basis of the Andreev approximation to obtain the energy levels and wave functions of the low-e
Externí odkaz:
http://arxiv.org/abs/2405.16135
Publikováno v:
Phys. Rev. B 109, 075127 (2024)
The effects of optical bond phonons coupled to electrons in two-dimensional lattices have attracted much interest recently, with the hope to explore unconventional superconducting mechanism and pairing symmetries. Here we conduct a systematic investi
Externí odkaz:
http://arxiv.org/abs/2402.10458
Publikováno v:
Phys. Rev. B 109, 075130 (2024)
We study the electronic orders at the lower van Hove filling in the kagome lattice. In the weak limit of the Hubbard interaction $U$ versus the hopping parameter $t$, we find that the system develops itinerant ferromagnetism; In the intermediate rang
Externí odkaz:
http://arxiv.org/abs/2402.10455
Publikováno v:
Phys. Rev. B 109, L220506 (2024)
The recent discovery of bulk superconductivity in trilayer nickelate La$_4$Ni$_3$O$_{10}$ with the critical temperature $T_c$ near $30$K under high pressure is attracting a new wave of research interest, after the breakthrough of bilayer La$_3$Ni$_2$
Externí odkaz:
http://arxiv.org/abs/2402.05447
Autor:
Hong Li, Qingqing Zhang, Tao Duan, Jing Li, Lei Shi, Qiang Hua, Dandan Li, Gong-Jun Ji, Kai Wang, Chunyan Zhu
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-9 (2024)
Abstract The prevalence of autism spectrum disorders (ASDs) differs substantially between males and females, suggesting that sex-related neurodevelopmental factors are central to ASD pathogenesis. Numerous studies have suggested that abnormal brain s
Externí odkaz:
https://doaj.org/article/d6e2aed4353b498091393a595d30aeb4
Publikováno v:
Chin. Phys. Lett. 40, 057402 (2023)
In d$_{x^2-y^2}$-wave superconductors, the effect of s-wave point disorder has been extensively studied in the literature. In this work, we study the anisotropic disorder with a the form of $V_{kk'}^{\rm imp}=V_if_kf_{k'}$ with $f_k=\cos(2\theta)$ (w
Externí odkaz:
http://arxiv.org/abs/2306.09092