A single chip electron spin resonance detector based on a single high electron mobility transistor

Journal of Magnetic Resonance
Alessandro V MatheoudGiovanni Boero

Abstract

Single-chip microwave oscillators are promising devices for inductive electron spin resonance spectroscopy (ESR) experiments on nanoliter and subnanoliter samples. Two major problems of the previously reported designs were the large minimum microwave magnetic field (0.1-0.7 mT) and large power consumption (0.5-200 mW), severely limiting their use for the investigation of samples having long relaxation times and for operation at low temperatures. Here we report on the design and characterization of a single-chip ESR detector operating with a microwave magnetic field and a power consumption orders of magnitude lower compared with previous designs. These significant improvements are mainly due to the use of a high electron mobility transistor (HEMT) technology instead of a complementary metal-oxide semiconductor (CMOS) technology. The realized single-chip ESR detector, which operates at 11.2 GHz, consists of an LC Colpitts oscillator realized with a single high-electron mobility transistor and a co-integrated single turn planar coil having a diameter of 440 μm. The realized detector operates from 300 K down to 1.4 K, at least. Its minimum microwave magnetic field is 0.4 μT at 300 K and 0.06 μT at 1.4 K, whereas its power consumpti...Continue Reading

Citations

Jan 3, 2019·The Review of Scientific Instruments·Nir DayanAharon Blank
Nov 4, 2020·The Review of Scientific Instruments·Anthony BeaumontGiovanni Boero
Jun 13, 2020·Analytical Chemistry·Nergiz Sahin SolmazGiovanni Boero

❮ Previous
Next ❯

Related Concepts

Related Feeds

Cajal Bodies & Gems

Cajal bodies or coiled bodies are dense foci of coilin protein. Gemini of Cajal bodies, or gems, are microscopically similar to Cajal bodies. It is believed that Cajal bodies play important roles in RNA processing while gems assist the Cajal bodies. Find the latest research on Cajal bodies and gems here.

Related Papers

Journal of Magnetic Resonance
Gabriele GualcoGiovanni Boero
The Review of Scientific Instruments
T Yalcin, Giovanni Boero
Journal of Magnetic Resonance
Jens AndersGiovanni Boero
The Review of Scientific Instruments
Marco GrisiGiovanni Boero
© 2022 Meta ULC. All rights reserved