6 papers
Contrasting Spin Excitations in Octahedral and Square-Planar n=8 Ruddlesden-Popper Nickelates
K. Scott, H. LaBollita, G. A. Pan +15
The discovery of superconductivity in reduced square-planar nickelates marked a major advance in identifying structural and electronic analogs to the high- cuprates. The more…
Topotactic oxidation of Ruddlesden-Popper nickelates reveals new structural family: oxygen-intercalated layered perovskites
Dan Ferenc Segedin, Jinkwon Kim, Harrison LaBollita +20
Layered perovskites such as the Dion-Jacobson, Ruddlesden-Popper, and Aurivillius families host a wide range of correlated electron phenomena, from high-temperature superconductivi…
Unconventional polaronic ground state in superconducting LiTiO
Zubia Hasan, Grace A. Pan, Harrison LaBollita +23
Geometrically frustrated lattices can display a range of correlated phenomena, ranging from spin frustration and charge order to dispersionless flat bands due to quantum interferen…
Magnetic excitations in NdNiO Ruddlesden-Popper nickelates observed via resonant inelastic x-ray scattering
Sophia F. R. TenHuisen, Grace A. Pan, Qi Song +16
Magnetic interactions are thought to play a key role in the properties of many unconventional superconductors, including cuprates, iron pnictides, and square-planar nickelates. Sup…
Valency, charge-transfer, and orbital-dependent correlation in bilayer nickelates Nd3Ni2O7
Daisuke Takegami, Takaki Okauchi, Edgar Abarca Morales +14
We examine the bulk electronic structure of Nd3Ni2O7 using Ni 2p core-level hard x-ray photoemission spectroscopy combined with density functional theory + dynamical mean-field the…
Resolving Structural Origins for Superconductivity in Strain-Engineered LaNiO Thin Films
Lopa Bhatt, Abigail Y. Jiang, Eun Kyo Ko +13
The discovery of high-temperature superconductivity in bulk LaNiO under high hydrostatic pressure and, more recently, biaxial compression in epitaxial thin films has ig…