Zobrazeno 1 - 10
of 137
pro vyhledávání: '"Norman, Michael R"'
Autor:
Chu, Zhaodong, Yang, Junyi, Li, Yan, Hwangbo, Kyle, Wen, Jianguo, Bielinski, Ashley R., Zhang, Qi, Martinson, Alex B. F., Hruszkewycz, Stephan, Fong, Dillon D., Xu, Xiaodong, Norman, Michael R., Bhattacharya, Anand, Wen, Haidan
Understanding surface collective dynamics in quantum materials is crucial for advancing quantum technologies. For example, surface phonon modes in quantum paraelectrics are thought to play an essential role in facilitating interfacial superconductivi
Externí odkaz:
http://arxiv.org/abs/2409.02073
We employ correlated density-functional theory methods (DFT + Hubbard $U$) to investigate the spin-density wave state of the bilayer Ruddlesden-Popper (RP) nickelate La$_{3}$Ni$_{2}$O$_{7}$ which becomes superconducting under pressure. We predict tha
Externí odkaz:
http://arxiv.org/abs/2407.14409
Publikováno v:
Phys. Rev. B 109, 195151 2024
Motivated by the recent observation of superconductivity in the pressurized trilayer La$_4$Ni$_3$O$_{10}$ Ruddlesden-Popper (RP) nickelate, we explore its structural, electronic, and magnetic properties as a function of hydrostatic pressure from firs
Externí odkaz:
http://arxiv.org/abs/2402.05085
Following the recent report of superconductivity in the bilayer nickelate La$_{3}$Ni$_{2}$O$_{7}$ under pressure, we present an analysis of the electronic and magnetic properties of La$_{3}$Ni$_{2}$O$_{7}$ as a function of pressure using correlated d
Externí odkaz:
http://arxiv.org/abs/2309.17279
Publikováno v:
Phys. Rev. B 107, 165153 (2023)
Infinite-layer nickelates ($R$NiO$_2$) exhibit some distinct differences as compared to cuprate superconductors, leading to a debate concerning the role of rare-earth ions ($R$=La, Pr, Nd) in the low-energy many-body physics. Although rare-earth $4f$
Externí odkaz:
http://arxiv.org/abs/2302.08460
Autor:
Hickox-Young, Daniel, Laurita, Geneva, Meier, Quintin N., Olds, Daniel, Spaldin, Nicola A., Norman, Michael R., Rondinelli, James M.
Publikováno v:
Phys. Rev. Research 4, (2022) 033187
The relaxor ferroelectric transition in Cd$_2$Nb$_2$O$_7$ is thought to be described by the unusual condensation of two $\Gamma$-centered phonon modes, $\Gamma_4^-$ and $\Gamma_5^-$. However, their respective roles have proven to be ambiguous, with d
Externí odkaz:
http://arxiv.org/abs/2207.00575
Autor:
Liu, Changjiang, Zhou, Xianjing, Hong, Deshun, Fisher, Brandon, Zheng, Hong, Pearson, John, Jin, Dafei, Norman, Michael R, Bhattacharya, Anand
Publikováno v:
Nat. Commun. 14, 951 (2023)
Superconductivity forms out of the condensation of Cooper pairs of electrons. The mechanism by which Cooper pairs are created in non-conventional superconductors is often elusive because experimental signatures that connect a specific pairing mechani
Externí odkaz:
http://arxiv.org/abs/2203.05867
Publikováno v:
Front. Phys. 9, 813532 (2022)
The discovery of superconductivity in thin films ($\sim$10 nm) of infinite-layer hole-doped NdNiO$_2$ has invigorated the field of high-temperature superconductivity research, reviving the debate over contrasting views that nickelates that are isostr
Externí odkaz:
http://arxiv.org/abs/2111.01296
Autor:
Meier, Quintin N., Hickox-Young, Daniel, Laurita, Geneva, Spaldin, Nicola A., Rondinelli, James M., Norman, Michael R.
Publikováno v:
Phys. Rev. X 12, 011024 (2022)
Higgs and Goldstone modes, well known in high energy physics, have been realized in a number of condensed matter physics contexts, including superconductivity and magnetism. The Goldstone-Higgs concept is also applicable to and gives rise to new insi
Externí odkaz:
http://arxiv.org/abs/2107.11332
Autor:
Karp, Jonathan, Hampel, Alexander, Zingl, Manuel, Botana, Antia S., Park, Hyowon, Norman, Michael R., Millis, Andrew J.
Publikováno v:
Phys. Rev. B 102, 245130 (2020)
We study the many-body electronic structure of the stoichiometric and electron-doped trilayer nickelate Pr$_4$Ni$_3$O$_8$ in comparison to that of the stoichiometric and hole-doped infinite layer nickelate NdNiO$_2$ within the framework of density fu
Externí odkaz:
http://arxiv.org/abs/2010.02856