Effects of microwave radiation on the noise in high-Tc YBa2Cu3O7 dc SQUID magnetometer

P. H. Chang, H. C. Yang, H. E. Horng

Research output: Contribution to journalArticle

Abstract

With a properly fabricated low-noise SQUID, we have studied the effects of microwave radiation on the noise behavior. Under an ac bias, with increasing microwave power, the critical current and the voltage modulation depth ΔV = Φ0VΦ/π decrease, but the SQUID resistance Rs increases, suggesting a dynamical interaction between the charge carriers and the electromagnetic wave. Furthermore, the microwave radiation modifies drastically the functional dependence of SΦ and ΔV on ac bias current.

Original languageEnglish
Pages (from-to)373-378
Number of pages6
JournalSolid State Communications
Volume116
Issue number7
DOIs
Publication statusPublished - 2000 Oct 16

Fingerprint

SQUIDs
Magnetometers
magnetometers
Microwaves
microwaves
Bias currents
Critical currents
Beam plasma interactions
Charge carriers
Electromagnetic waves
low noise
charge carriers
critical current
electromagnetic radiation
Modulation
modulation
Electric potential
electric potential
barium copper yttrium oxide
interactions

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

Cite this

Effects of microwave radiation on the noise in high-Tc YBa2Cu3O7 dc SQUID magnetometer. / Chang, P. H.; Yang, H. C.; Horng, H. E.

In: Solid State Communications, Vol. 116, No. 7, 16.10.2000, p. 373-378.

Research output: Contribution to journalArticle

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