Hydrogen is not necessary for superconductivity in topotactically reduced nickelates

Kavli Affiliate: Lena F. Kourkoutis | First 5 Authors: Purnima P. Balakrishnan, Dan Ferenc Segedin, Lin Er Chow, P. Quarterman, Shin Muramoto | Summary: A key open question in the study of layered superconducting nickelate films is the role that hydrogen incorporation into the lattice plays in the appearance of the superconducting state. Due to […]


Continue.. Hydrogen is not necessary for superconductivity in topotactically reduced nickelates

$Γ$-VAE: Curvature regularized variational autoencoders for uncovering emergent low dimensional geometric structure in high dimensional data

Kavli Affiliate: Itai Cohen | First 5 Authors: Jason Z. Kim, Nicolas Perrin-Gilbert, Erkan Narmanli, Paul Klein, Christopher R. Myers | Summary: Natural systems with emergent behaviors often organize along low-dimensional subsets of high-dimensional spaces. For example, despite the tens of thousands of genes in the human genome, the principled study of genomics is fruitful […]


Continue.. $Γ$-VAE: Curvature regularized variational autoencoders for uncovering emergent low dimensional geometric structure in high dimensional data

Dichotomous Dynamics of Magnetic Monopole Fluids

Kavli Affiliate: J. C. Seamus Davis | First 5 Authors: Chun-Chih Hsu, Hiroto Takahashi, Fabian Jerzembeck, Jahnatta Dasini, Chaia Carroll | Summary: A recent advance in the study of emergent magnetic monopoles was the discovery that monopole motion is restricted to dynamical fractal trajectories (J. Hall’en et al, Science 378, 1218 (2022)) thus explaining the […]


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Dichotomous Dynamics of Magnetic Monopole Fluids

Kavli Affiliate: J. C. Seamus Davis | First 5 Authors: Chun-Chih Hsu, Hiroto Takahashi, Fabian Jerzembeck, Jahnatta Dasini, Chaia Carroll | Summary: A recent advance in the study of emergent magnetic monopoles was the discovery that monopole motion is restricted to dynamical fractal trajectories (J. Hall’en et al, Science 378, 1218 (2022)) thus explaining the […]


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Controllable suppression of the unconventional superconductivity in bulk and thin-film Sr$_{2}$RuO$_{4}$ via high-energy electron irradiation

Kavli Affiliate: Darrell G. Schlom | First 5 Authors: Jacob P. Ruf, Hilary M. L. Noad, Romain Grasset, Ludi Miao, Elina Zhakina | Summary: In bulk Sr$_{2}$RuO$_{4}$, the strong sensitivity of the superconducting transition temperature $T_{text{c}}$ to nonmagnetic impurities provides robust evidence for a superconducting order parameter that changes sign around the Fermi surface. In […]


Continue.. Controllable suppression of the unconventional superconductivity in bulk and thin-film Sr$_{2}$RuO$_{4}$ via high-energy electron irradiation

Scanning SQUID study of ferromagnetism and superconductivity in infinite-layer nickelates

Kavli Affiliate: Lena F. Kourkoutis | First 5 Authors: Ruby A. Shi, Bai Yang Wang, Yusuke Iguchi, Motoki Osada, Kyuho Lee | Summary: Infinite-layer nickelates $R_{1-x}$Sr$_{x}$NiO$_{2}$ ($R$ = La, Pr, Nd) are a class of superconductors with structural similarities to cuprates. Although long-range antiferromagnetic order has not been observed for these materials, magnetic effects such […]


Continue.. Scanning SQUID study of ferromagnetism and superconductivity in infinite-layer nickelates

Epitaxial rare-earth doped complex oxide thin films for infrared applications

Kavli Affiliate: Darrell G. Schlom | First 5 Authors: Mythili Surendran, Joshua Rollag, Christopher E. Stevens, Ching-Tai Fu, Harish Kumarasubramanian | Summary: Rare earth dopants are one of the most extensively studied optical emission centers for a broad range of applications such as laser optoelectronics, sensing, lighting, and quantum information technologies due to their narrow […]


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Designed spin-texture-lattice to control anisotropic magnon transport in antiferromagnets

Kavli Affiliate: Darrell G. Schlom | First 5 Authors: Peter Meisenheimer, Maya Ramesh, Sajid Husain, Isaac Harris, Hyeon Woo Park | Summary: Spin waves in magnetic materials are promising information carriers for future computing technologies due to their ultra-low energy dissipation and long coherence length. Antiferromagnets are strong candidate materials due, in part, to their […]


Continue.. Designed spin-texture-lattice to control anisotropic magnon transport in antiferromagnets

Tracking topological defect motion and incommensurate charge order melting in a perovskite manganite

Kavli Affiliate: Lena F. Kourkoutis | First 5 Authors: Noah Schnitzer, Berit H. Goodge, Gregory Powers, Jaewook Kim, Sang-Wook Cheong | Summary: Charge order pervades the phase diagrams of many quantum materials where it competes with superconducting and magnetic phases, hosts electronic phase transitions and topological defects, and couples to the lattice generating intricate structural […]


Continue.. Tracking topological defect motion and incommensurate charge order melting in a perovskite manganite

Millimeter-scale freestanding superconducting infinite-layer nickelate membranes

Kavli Affiliate: David A. Muller | First 5 Authors: Yonghun Lee, Xin Wei, Yijun Yu, Lopa Bhatt, Kyuho Lee | Summary: Progress in the study of infinite-layer nickelates has always been highly linked to materials advances. In particular, the recent development of superconductivity via hole-doping was predicated on the controlled synthesis of Ni in a […]


Continue.. Millimeter-scale freestanding superconducting infinite-layer nickelate membranes