196 citations · 1.3k across the 21 of their papers we have counts for
20 papers
Lattice-charge coupling in a trilayer nickelate with intertwined density wave order
Xun Jia, Yao Shen, Harrison LaBollita +16
Intertwined charge and spin correlations are ubiquitous in a wide range of transition metal oxides and are often perceived as intimately related to unconventional superconductivity…
Polymorphism in Ruddlesden-Popper : Discovery of a Hidden Phase with Distinctive Layer Stacking
Xinglong Chen, Junjie Zhang, A. S. Thind +8
We report the discovery of a novel form of Ruddlesden-Popper (RP) oxide, which stands as the first example of long-range, coherent polymorphism in this class of inorganic solids. R…
Bootstrapped Dimensional Crossover of a Spin Density Wave
Anjana M. Samarakoon, J. Strempfer, Junjie Zhang +8
Quantum materials display rich and myriad types of magnetic, electronic, and structural ordering, often with these ordering modes either competing with one another or 'intertwining…
Electronic structure and correlations in planar trilayer nickelate Pr4Ni3O8
Haoxiang Li, Peipei Hao, Junjie Zhang +6
The recent discovery of superconductivity in hole-doped planar nickelates R1-xSrNiO2 (R=Pr,Nd) raises the foundational question of how the electronic structure and electronic corre…
Understanding and Designing the Spin-Driven Thermoelectrics
Md Mobarak Hossain Polash, Duncan Moseley, Junjie Zhang +2
While the thermoelectric materials progress based on the engineering of electronic and phononic characteristics is reaching a plateau, adding the spin degree of freedom has the pot…
Role of Oxygen States in the Low Valence Nickelate LaNiO
Y. Shen, J. Sears, G. Fabbris +13
The discovery of superconductivity in square-planar low valence nickelates has ignited a vigorous debate regarding their essential electronic properties: Do these materials have ap…
Deep Bayesian Local Crystallography
Sergei V. Kalinin, Mark P. Oxley, Mani Valleti +7
The advent of high-resolution electron and scanning probe microscopy imaging has opened the floodgates for acquiring atomically resolved images of bulk materials, 2D materials, and…
Observation of a Chiral Wave Function in Twofold Degenerate Quadruple Weyl System BaPtGe
Haoxiang Li, Tiantian Zhang, A. Said +10
Topological states in quantum materials are defined by non-trivial topological invariants, such as the Chern number, which are properties of their bulk wave functions. A remarkable…
Strong Superexchange in a Nickelate Revealed by Resonant Inelastic X-Ray Scattering
J. Q. Lin, P. Villar Arribi, G. Fabbris +20
The discovery of superconductivity in a nickelate has inspired disparate theoretical perspectives regarding the essential physics of this class of materials. A key issue…
Intertwined density waves in a metallic nickelate
J. Zhang, D. Phelan, A. S. Botana +10
Nickelates are a rich class of materials, ranging from insulating magnets to superconductors. But for stoichiometric materials, insulating behavior is the norm, as for most late tr…
Spin dynamics and a nearly continuous magnetic phase transition in an entropy-stabilized oxide antiferromagnet
Benjamin A. Frandsen, K. Alec Petersen, Nicolas A. Ducharme +7
The magnetic order and the spin dynamics in the antiferromagnetic entropy-stabilized oxide (MgCoNiCuZn)O (MgO-ESO) have been studied using m…
High pO2 Floating Zone Crystal Growth of the Perovskite Nickelate PrNiO3
Hong Zheng, Junjie Zhang, Bixia Wang +7
Single crystals of PrNiO3 were grown under an oxygen pressure of 295 bar using a unique high-pressure optical-image floating zone furnace. The crystals, with volume in excess of 1…
Local Metallic and Structural Properties of the Strongly Correlated Metal LaNiO using Li -NMR
Victoria L. Karner, Aris Chatzichristos, David L. Cortie +19
We report -detected NMR of ion-implanted Li in a single crystal and thin film of the strongly correlated metal LaNiO. In both samples, spin-lattice relaxation measur…
High oxygen pressure floating zone growth and crystal structure of the layered nickelates RNiO (R=La, Pr)
Junjie Zhang, Hong Zheng, Yu-Sheng Chen +4
Single crystals of the metallic Ruddlesden-Popper trilayer nickelates RNiO (R=La, Pr) were successfully grown using an optical-image floating zone furnace under oxyg…
Spin stripe order in a square planar trilayer nickelate
Junjie Zhang, D. M. Pajerowski, A. S. Botana +12
Trilayer nickelates, which exhibit a high degree of orbital polarization combined with an electron count (d8.67) corresponding to overdoped cuprates, have been identified as a prom…
Long range antiferromagnetic order in a rocksalt high entropy oxide
Junjie Zhang, Jiaqiang Yan, S. Calder +10
We report for the first time the magnetic structure of the high entropy oxide using neutron powder diffraction. This material exhibits…
Mimicking cuprates: large orbital polarization in a metallic square-planar nickelate
Junjie Zhang, A. S. Botana, J. W. Freeland +5
High temperature cuprate superconductivity remains a defining problem in condensed matter physics. Among myriad approaches to addressing this problem has been the study of alternat…
High pressure floating-zone growth of perovskite nickelate LaNiO3 single crystals
Junjie Zhang, Hong Zheng, Yang Ren +1
We report the first single crystal growth of the correlated metal LaNiO3 using a high-pressure optical-image floating zone furnace. The crystals were studied using single crystal/p…
Stacked Charge Stripes in Quasi-Two_Dimensional Trilayer Nickelate La4Ni3O8
Junjie Zhang, Yu-Sheng Chen, D. Phelan +3
The quasi-two-dimensional nickelate La4Ni3O8 (La-438) is an anion deficient n=3 Ruddlesden-Popper (R-P) phase that consists of trilayer networks of square planar Ni ions, formally…
Brownmillerite Ca2Co2O5: Synthesis, Stability, and Re-entrant Single-Crystal-to-Single-Crystal Structural Transitions
Junjie Zhang, Hong Zheng, Christos D. Malliakas +5
Ca2Co2O5 in the brownmillerite form was synthesized using a high-pressure optical-image floating zone furnace, and single crystals with dimensions up to 1.4x0.8x0.5 mm3 were obtain…