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 […]


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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 […]


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Optical Dipole Structure and Orientation of GaN Defect Single-Photon Emitters

Kavli Affiliate: Warren R. Zipfel | First 5 Authors: Yifei Geng, Debdeep Jena, Gregory D. Fuchs, Warren R. Zipfel, Farhan Rana | Summary: GaN has recently been shown to host bright, photostable, defect single photon emitters in the 600-700 nm wavelength range that are promising for quantum applications. The nature and origin of these defect […]


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Room temperature optically detected magnetic resonance of single spins in GaN

Kavli Affiliate: Gregory D. Fuchs | First 5 Authors: Jialun Luo, Yifei Geng, Farhan Rana, Gregory D. Fuchs, | Summary: Optically detected magnetic resonance (ODMR) is an efficient mechanism to readout the spin of solid-state color centers at room temperature, thus enabling spin-based quantum sensors of magnetic field, electric field, and temperature with high sensitivity […]


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Room temperature optically detected magnetic resonance of single spins in GaN

Kavli Affiliate: Gregory D. Fuchs | First 5 Authors: Jialun Luo, Yifei Geng, Farhan Rana, Gregory D. Fuchs, | Summary: Optically detected magnetic resonance (ODMR) is an efficient mechanism to readout the spin of solid-state color centers at room temperature, thus enabling spin-based quantum sensors of magnetic field, electric field, and temperature with high sensitivity […]


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Manipulating chiral-spin transport with ferroelectric polarization

Kavli Affiliate: Daniel C. Ralph | First 5 Authors: Xiaoxi Huang, Xianzhe Chen, Yuhang Li, John Mangeri, Hongrui Zhang | Summary: A collective excitation of the spin structure in a magnetic insulator can transmit spin-angular momentum with negligible dissipation. This quantum of a spin wave, introduced more than nine decades ago, has always been manipulated […]


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Exchange bias between van der Waals materials: tilted magnetic states and field-free spin-orbit-torque switching

Kavli Affiliate: Daniel C. Ralph | First 5 Authors: Thow Min Jerald Cham, Reiley J. Dorrian, Xiyue S. Zhang, Avalon H. Dismukes, Daniel G. Chica | Summary: Magnetic van der Waals heterostructures provide a unique platform to study magnetism and spintronics device concepts in the two-dimensional limit. Here, we report studies of exchange bias from […]


Continue.. Exchange bias between van der Waals materials: tilted magnetic states and field-free spin-orbit-torque switching