Spectral Speckle Customization

Kavli Affiliate: Frank Wise | First 5 Authors: Nicholas Bender, Henry Haig, Demetrios N. Christodoulides, Frank Wise, | Summary: Speckle patterns are used in a broad range of applications including microscopy, imaging, and light-matter interactions. Tailoring speckles’ statistics can dramatically enhance their performance in applications. We present an experimental technique for customizing the spatio-spectral speckled […]


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Predictions and correlation analyses of Ellingham diagrams in binary oxides

Kavli Affiliate: Darrell G. Schlom | First 5 Authors: Shun-Li Shang, Shuang Lin, Michael C. Gao, Darrell G. Schlom, Zi-Kui Liu | Summary: Knowing oxide-forming ability is vital to gain desired or avoid deleterious oxides formation through tuning oxidizing environment and materials chemistry. Here, we have conducted a comprehensive thermodynamic analysis of 137 binary oxides […]


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$textit{In situ}$ electric-field control of ferromagnetic resonance in the low-loss organic-based ferrimagnet V[TCNE]$_{xsim 2}$

Kavli Affiliate: Gregory D. Fuchs | First 5 Authors: Seth W. Kurfman, Andrew Franson, Piyush Shah, Yueguang Shi, Hil Fung Harry Cheung | Summary: We demonstrate indirect electric-field control of ferromagnetic resonance (FMR) in devices that integrate the low-loss, molecule-based, room-temperature ferrimagnet vanadium tetracyanoethylene (V[TCNE]$_{x sim 2}$) mechanically coupled to PMN-PT piezoelectric transducers. Upon straining […]


Continue.. $textit{In situ}$ electric-field control of ferromagnetic resonance in the low-loss organic-based ferrimagnet V[TCNE]$_{xsim 2}$

Observation of spin polarons in a frustrated moiré Hubbard system

Kavli Affiliate: Jie Shan | First 5 Authors: Zui Tao, Wenjin Zhao, Bowen Shen, Patrick Knüppel, Kenji Watanabe | Summary: The electron’s kinetic energy plays a pivotal role in magnetism. While virtual electron hopping promotes antiferromagnetism in an insulator, the real process usually favors ferromagnetism. But in kinetically frustrated systems, such as hole doped triangular […]


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Sagnac interferometry for high-sensitivity optical measurements of spin-orbit torque

Kavli Affiliate: Daniel C. Ralph | First 5 Authors: Saba Karimeddiny, Thow Min Jerald Cham, Orion Smedley, Daniel C. Ralph, Yunqiu Kelly Luo | Summary: Sagnac interferometry can provide a significant improvement in signal-to-noise ratio compared to conventional magnetic imaging based on the magneto-optical Kerr effect (MOKE). We show that this improvement is sufficient to […]


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Highly-Multimode Solitons in Step-Index Optical Fiber

Kavli Affiliate: Frank W. Wise | First 5 Authors: Yuhang Wu, Nicholas Bender, Demetrios N. Christodoulides, Frank W. Wise, | Summary: We report the generation of multimode solitons in step-index fiber. The solitons are superpositions of 5-10 temporally-aligned transverse modes, they exhibit speckled beam profiles, and the spatio-spectral variation across the soliton can be complex. […]


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Multimodal Operando X-ray Mechanistic Studies of a Bimetallic Oxide Electrocatalyst in Alkaline Media

Kavli Affiliate: Hector D. Abruna | First 5 Authors: Jason J. Huang, Yao Yang, Daniel Weinstock, Colin R. Bundschu, Jacob P. C. Ruff | Summary: Furthering the understanding of the catalytic mechanisms in the oxygen reduction reaction (ORR) is critical to advancing and enabling fuel cell technology. In this work, we use multimodal operando synchrotron […]


Continue.. Multimodal Operando X-ray Mechanistic Studies of a Bimetallic Oxide Electrocatalyst in Alkaline Media

Multimodal Operando X-ray Mechanistic Studies of a Bimetallic Oxide Electrocatalyst in Alkaline Media

Kavli Affiliate: Hector D. Abruna | First 5 Authors: Jason J. Huang, Yao Yang, Daniel Weinstock, Colin R. Bundschu, Jacob P. C. Ruff | Summary: Furthering the understanding of the catalytic mechanisms in the oxygen reduction reaction (ORR) is critical to advancing and enabling fuel cell technology. In this work, we use multimodal operando synchrotron […]


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Endotaxial Stabilization of 2D Charge Density Waves with Long-range Order

Kavli Affiliate: Lena F. Kourkoutis | First 5 Authors: Suk Hyun Sung, Nishkarsh Agarwal, Ismail El Baggari, Yin Min Goh, Patrick Kezer | Summary: Charge density waves are emergent quantum states that spontaneously reduce crystal symmetry, drive metal-insulator transitions, and precede superconductivity. In low-dimensions, distinct quantum states arise, however, thermal fluctuations and external disorder destroy […]


Continue.. Endotaxial Stabilization of 2D Charge Density Waves with Long-range Order

Endotaxial Stabilization of 2D Charge Density Waves with Long-range Order

Kavli Affiliate: Lena F. Kourkoutis | First 5 Authors: , , , , | Summary: Charge density waves are emergent quantum states that spontaneously reduce crystal symmetry, drive metal-insulator transitions, and precede superconductivity. In low-dimensions, distinct quantum states arise, however, thermal fluctuations and external disorder destroy long-range order. Here we stabilize ordered two-dimensional (2D) charge […]


Continue.. Endotaxial Stabilization of 2D Charge Density Waves with Long-range Order