Results 31 to 40 of about 1,814 (188)

Frequency and magnetic field mapping of magnetoelastic spin pumping in high overtone bulk acoustic wave resonator

open access: yesAIP Advances, 2018
We report on the first observation of microvolt-scale inverse spin Hall effect (ISHE) dc voltage driven by an acoustic spin pumping (ASP) in a bulk acoustic wave (BAW) resonator formed by a Al-ZnO-Al-YIG(1)-GGG-YIG(2)-Pt structure.
N. I. Polzikova   +5 more
doaj   +1 more source

Nonlinear mechanisms in passive microwave devices [PDF]

open access: yes, 2011
Premi extraordinari doctorat curs 2010-2011, àmbit d’Enginyeria de les TICThe telecommunications industry follows a tendency towards smaller devices, higher power and higher frequency, which imply an increase on the complexity of the electronics ...
Rocas Cantenys, Eduard
core   +4 more sources

A lateral modes model for BAW resonators [PDF]

open access: yes2014 IEEE International Ultrasonics Symposium, 2014
An equivalent circuit model to predict lateral modes occurring in real BAW resonators is proposed. The circuit model has been validated with FEM simulations of FBAR resonators and also with measurements of SMR resonators. The model allows to predict the electrical response of square-shaped and rectangular-shaped resonators without limitation on ...
Collado Gómez, Juan Carlos   +5 more
openaire   +2 more sources

Ferroelectric film bulk acoustic wave resonators for liquid viscosity sensing [PDF]

open access: yes, 2013
A concept of accurate liquid viscosity sensing, using bulk acoustic wave (BAW) resonators, is proposed. The proposed BAW resonators use thin ferroelectric films with the dc field induced piezoelectric effect allowing for generation of pure longitudinal ...
Gevorgian, Spartak, Vorobiev, Andrei
core   +1 more source

Acoustic spin pumping in magnetoelectric bulk acoustic wave resonator

open access: yesAIP Advances, 2016
We present the generation and detection of spin currents by using magnetoelastic resonance excitation in a magnetoelectric composite high overtone bulk acoustic wave (BAW) resonator (HBAR) formed by a Al-ZnO-Al-GGG-YIG-Pt structure.
N. I. Polzikova   +5 more
doaj   +1 more source

Observation of Low Temperature Magneto-Mechanic Effects in Crystalline Resonant Phonon Cavities

open access: yes, 2019
We observe magnetic effects in ultra-high quality factor crystalline quartz Bulk Acoustic Wave resonators at milli-Kelvin temperature. The study reveals existence of hysteresis loops, jumps and memory effects of acoustical resonance frequencies.
Galliou, Serge   +2 more
core   +1 more source

A new method of probing mechanical losses of coatings at cryogenic temperatures [PDF]

open access: yes, 2016
A new method of probing mechanical losses and comparing the corresponding deposition processes of metallic and dielectric coatings in 1-100 MHz frequency range and cryogenic temperatures is presented.
Abbé, Philippe,   +17 more
core   +4 more sources

A design procedure for an acoustic mirror providing dual reflection of longitudinal and shear waves in Solidly Mounted BAW Resonators (SMRs) [PDF]

open access: yes, 2009
The quality factor of the traditional Solidly Mounted Resonator (SMR) is limited by substrate losses, as the traditionally employed acoustic mirror reflects longitudinal waves but not shear waves.
Hueting, R.J.E.   +2 more
core   +4 more sources

Advances in Development of Quartz Crystal Oscillators at Liquid Helium Temperatures

open access: yes, 2013
This work presents some recent results in the field of liquid helium {bulk acoustic wave} oscillators. The discussion covers the whole development procedure starting from component selection and characterization and concluding with actual phase noise ...
Abbé, Philippe   +3 more
core   +3 more sources

Optimized reflector stacks for solidly mounted bulk acoustic wave resonators [PDF]

open access: yes, 2010
The quality factor (Q) of a solidly mounted bulk acoustic wave resonator (SMR) is limited by substrate losses, because the acoustic mirror is traditionally optimized to reflect longitudinal waves only.
Hueting, Raymond J.E.   +3 more
core   +3 more sources

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