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View article: Millimeter-Wavelength Dual-Polarized Lens-Absorber-Coupled Ti/Al Kinetic Inductance Detectors
Millimeter-Wavelength Dual-Polarized Lens-Absorber-Coupled Ti/Al Kinetic Inductance Detectors Open
This work presents Ti/Al bi-layer Microwave Kinetic Inductance Detectors (MKIDs) based on lens-coupled spiral absorbers as the quasi-optical coupling mechanism for millimeter-wavelength radiation detection. From simulations, the lens-coupl…
View article: Cross-Polarization Reduction in Kinetic Inductance Detectors Based on Quasi-Lumped Resonators
Cross-Polarization Reduction in Kinetic Inductance Detectors Based on Quasi-Lumped Resonators Open
Kinetic Inductance Detectors (KIDs) have emerged as a leading technology for millimeter- and submillimeter-wave astronomy due to their high sensitivity, natural multiplexing capabilities and scalable fabrication. In polarization-sensitive …
View article: Dark characterization of Ti/Al LEKIDs for the search of axions in the W-band
Dark characterization of Ti/Al LEKIDs for the search of axions in the W-band Open
We report the electrical (dark) characterization of lumped-element kinetic inductance detectors (LEKIDs) fabricated from a Titanium/Aluminum bilayer and designed for broadband absorption in the W-band (75-110 GHz). These detectors are prot…
View article: Low Loss Hybrid Nb/Au Superconducting Resonators for Quantum Circuit Applications
Low Loss Hybrid Nb/Au Superconducting Resonators for Quantum Circuit Applications Open
Superconducting resonators are critical components in a wide range of quantum technologies, including high‐performance detectors and amplifiers. However, their performance is often limited by noise and sensitivity issues caused by two‐leve…
View article: The CADEx Experiment: A new haloscope axion search in the 330-460 micro-eV mass range at the Canfranc Underground Laboratory (LSC)
The CADEx Experiment: A new haloscope axion search in the 330-460 micro-eV mass range at the Canfranc Underground Laboratory (LSC) Open
The Canfranc Axion Detection Experiment (CADEx) will search for dark matter axions in the W-band (80–110 GHz) using a multiple cavity haloscope and highly sensitive Kinetic Inductance Detectors. A summary of the experiment and progress tow…
View article: Low loss hybrid Nb/Au superconducting resonators for quantum circuit applications
Low loss hybrid Nb/Au superconducting resonators for quantum circuit applications Open
Superconducting resonators play a crucial role in the development of quantum technologies such as quantum computing or high performance detectors. Yet, one of their main limitations regarding to noise and sensitivity is the interaction wit…
View article: Optimized Cross-Polarized LEKIDs for <i>W</i>-Band Using Sawtooth Inductors
Optimized Cross-Polarized LEKIDs for <i>W</i>-Band Using Sawtooth Inductors Open
Lumped-element kinetic inductance detectors (LEKIDs) based on sawtooth inductors for W -band are presented in this article. A careful analysis is carried out for the cross-polarization in the inductor geometry, which brings out the absorpt…
View article: Enhancement of vortex liquid phase and reentrant behavior in NiBi<sub>3</sub> single crystals
Enhancement of vortex liquid phase and reentrant behavior in NiBi<sub>3</sub> single crystals Open
We investigate the vortex phase diagram of needle shaped high quality NiBi 3 single crystals by transport measurements. The current is applied along the crystalline b -axis of this intermetallic quasi-1D BCS superconductor. The single crys…
View article: Measuring the Magnon-Photon Coupling in Shaped Ferromagnets: Tuning of the Resonance Frequency
Measuring the Magnon-Photon Coupling in Shaped Ferromagnets: Tuning of the Resonance Frequency Open
Cavity photons and ferromagnetic spin excitations can exchange information coherently in hybrid architectures, at speeds set by their mutual coupling strength. Speed enhancement is usually achieved by optimizing the geometry of the electro…
View article: High cooperativity coupling to nuclear spins on a circuit quantum electrodynamics architecture
High cooperativity coupling to nuclear spins on a circuit quantum electrodynamics architecture Open
Nuclear spins are candidates to encode qubits or qudits due to their isolation from magnetic noise and potentially long coherence times. However, their weak coupling to external stimuli makes them hard to integrate into circuit quantum ele…
View article: Measuring the magnon-photon coupling in shaped ferromagnets: tuning of the resonance frequency
Measuring the magnon-photon coupling in shaped ferromagnets: tuning of the resonance frequency Open
Cavity photons and ferromagnetic spins excitations can exchange information coherently in hybrid architectures, at speeds set by their mutual coupling strength. Speed enhancement is usually achieved by optimizing the geometry of the electr…
View article: High cooperativity coupling to nuclear spins on a circuit QED architecture - Open Access Data SAet
High cooperativity coupling to nuclear spins on a circuit QED architecture - Open Access Data SAet Open
Open data set supporting figures of the related publication.
View article: High cooperativity coupling to nuclear spins on a circuit QED architecture - Open Access Data SAet
High cooperativity coupling to nuclear spins on a circuit QED architecture - Open Access Data SAet Open
Open data set supporting figures of the related publication.
View article: High cooperativity coupling to nuclear spins on a circuit QED architecture
High cooperativity coupling to nuclear spins on a circuit QED architecture Open
Nuclear spins are candidates to encode qubits or qudits due to their isolation from magnetic noise and potentially long coherence times. However, their weak coupling to external stimuli makes them hard to integrate into circuit-QED archite…
View article: Ratchet device generated by type I spin ice nanomagnets: Realization of macroscopic ratchet effect based on nonperiodic and uneven potentials
Ratchet device generated by type I spin ice nanomagnets: Realization of macroscopic ratchet effect based on nonperiodic and uneven potentials Open
Ratchet devices allow turning an ac input signal into a dc output signal. A ratchet device is set by moving particles driven by zero averages forces on asymmetric potentials. Hybrid nanostructures combining artificially fabricated spin-ice…
View article: Little–Parks effect governed by magnetic nanostructures with out-of-plane magnetization
Little–Parks effect governed by magnetic nanostructures with out-of-plane magnetization Open
Little–Parks effect names the oscillations in the superconducting critical temperature as a function of the magnetic field. This effect is related to the geometry of the sample. In this work, we show that this effect can be enhanced and ma…
View article: Little-Parks Effect Governed by Magnetic Nanostructures with Out-of-Plane Magnetization Little-Parks Effect Governed by Magnetic Nanostructures with Out-of-Plane Magnetization
Little-Parks Effect Governed by Magnetic Nanostructures with Out-of-Plane Magnetization Little-Parks Effect Governed by Magnetic Nanostructures with Out-of-Plane Magnetization Open
Little-Parks effect names the oscillations in the superconducting critical temperature as a function of the magnetic field. This effect is related to the geometry of the sample. In this work, we show that this effect can be enhanced and ma…
View article: Layer-dependence of macroscopic and atomic magnetic correlations in Co/Pd multilayers
Layer-dependence of macroscopic and atomic magnetic correlations in Co/Pd multilayers Open
The development of multilayered materials with engineered magnetic properties compels a deep knowledge of physical properties at the atomic scale. The magnetic anisotropy is a key property in these materials. This work accounts for the mag…
View article: Optimal coupling of HoW$_{10}$ molecular magnets to superconducting circuits near spin clock transitions
Optimal coupling of HoW$_{10}$ molecular magnets to superconducting circuits near spin clock transitions Open
A central goal in quantum technologies is to maximize $G$T$_{2}$, where $G$ stands for the coupling of a qubit to control and readout signals and T$_{2}$ is the qubit's coherence time. This is challenging, as increasing $G$ (e.g. by coupli…
View article: Vortex dynamics controlled by local superconducting enhancement
Vortex dynamics controlled by local superconducting enhancement Open
A controlled local enhancement of superconductivity yields unexpected modifications in the vortex dynamics. This local enhancement has been achieved by designing an array of superconducting Nb nanostructures embedded in a V superconducting…
View article: Magnetic order and disorder in nanomagnets probed by superconducting vortices
Magnetic order and disorder in nanomagnets probed by superconducting vortices Open
We have studied two nanomagnet systems with strong (Co/Pd multilayers) and weak (NdCo alloy films) stray magnetic fields by probing the out-of-plane magnetic states with superconducting vortices. The hybrid samples are made of array of nan…