Zobrazeno 1 - 10
of 142
pro vyhledávání: '"Chen, Hanghui"'
Publikováno v:
Phys. Rev. B 110, 024105 (2024)
While polar metals are a metallic analogue of ferroelectrics, magnetic polar metals can be considered as a metallic analogue of multiferroics. There have been a number of attempts to integrate magnetism into a polar metal by synthesizing new material
Externí odkaz:
http://arxiv.org/abs/2407.07349
Autor:
Sun, Wenjie, Jiang, Zhicheng, Xia, Chengliang, Hao, Bo, Li, Yueying, Yan, Shengjun, Wang, Maosen, Liu, Hongquan, Ding, Jianyang, Liu, Jiayu, Liu, Zhengtai, Liu, Jishan, Chen, Hanghui, Shen, Dawei, Nie, Yuefeng
Revealing the momentum-resolved electronic structure of infinite-layer nickelates is essential for understanding this new class of unconventional superconductors, but has been hindered by the formidable challenges in improving the sample quality. In
Externí odkaz:
http://arxiv.org/abs/2403.07344
We study the bilayer two-orbital model for superconducting pairing symmetry of La$_3$Ni$_2$O$_7$ under pressure. By combining density-functional-theory (DFT), maximally-localized-Wannier-function, and linearized Eliashberg equation with random-phase-
Externí odkaz:
http://arxiv.org/abs/2311.07316
Autor:
Chen, Shanquan, Chang, Jhong-Yi, Zhang, Qinghua, Li, Qiuyue, Lin, Ting, Meng, Fanqi, Huang, Haoliang, Zeng, Shengwei, Yin, Xinmao, Duong, My Ngoc, Lu, Yalin, Chen, Lang, Guo, Er-Jia, Chen, Hanghui, Chang, Chun-Fu, Kuo, Chang-Yang, Chen, Zuhuang
Publikováno v:
Advanced Science, 2303630 (2023)
The origin of insulating ferromagnetism in epitaxial LaCoO3 films under tensile strain remains elusive despite extensive research efforts have been devoted. Surprisingly, the spin state of its Co ions, the main parameter of its ferromagnetism, is sti
Externí odkaz:
http://arxiv.org/abs/2302.06063
Publikováno v:
npj Comput Mater 8, 208 (2022)
Oxide heterostructures exhibit many intriguing properties. Here we provide design principles for inducing multiple topological states in (001) ($AM$O$_3$)$_1$/($AM'$O$_3$)$_1$ oxide superlattices. Aided by first-principles calculations and model anal
Externí odkaz:
http://arxiv.org/abs/2209.14674
Publikováno v:
Nature Communications 14, 5477 (2023)
A charge order (CO) with a wavevector $\mathbf{q}\simeq\left(\frac{1}{3},0,0\right)$ is observed in infinite-layer nickelates. Here we use first-principles calculations to demonstrate a charge-transfer-driven CO mechanism in infinite-layer nickelates
Externí odkaz:
http://arxiv.org/abs/2204.12208
Autor:
Xia, Wei, Wu, Jiaxuan, Li, Zhongyang, Yuan, Jian, An, Chao, Wang, Xia, Yu, Na, Zou, Zhiqiang, Liu, Gang, Zhou, Chunyin, Feng, Jiajia, Zhang, Lili, Dong, Zhaohui, Chen, Bin, Yang, Zhaorong, Yu, Zhenhai, Chen, Hanghui, Guo, Yanfeng
Publikováno v:
Small, 2024
Through either elements intercalation or application of pressure, transition metal dichalcogenide 1T-TiSe2 exhibits superconductivity in proximity to a charge density wave (CDW) quantum critical point (QCP), thus providing an ideal avenue to study th
Externí odkaz:
http://arxiv.org/abs/2202.06244
Publikováno v:
Frontiers in Physics 10, 835942 (2022)
This article summarizes recent work on the many-body (beyond density functional theory) electronic structure of layered rare-earth nickelates, both in the context of the materials themselves and in comparison to the high-temperature superconducting (
Externí odkaz:
http://arxiv.org/abs/2201.02852
Publikováno v:
J. Phys.: Condens. Matter 34 025501 (2021)
Hydrostatic pressure and oxygen vacancies usually have deleterious effects on ferroelectric materials because both tend to reduce their polarization. In this work we use first-principles calculations to study an important class of ferroelectric mater
Externí odkaz:
http://arxiv.org/abs/2111.00911
Publikováno v:
Physical Review B 105, 115134 (2022)
We use first-principles calculations to find that in infinite-layer nickelates $R$NiO$_2$, the widely studied tetragonal $P4/mmm$ structure is only dynamically stable for early lanthanide elements $R$ = La-Sm. For late lanthanide elements $R$ = Eu-Lu
Externí odkaz:
http://arxiv.org/abs/2110.12405