TY - JOUR
T1 - Effects of microwave radiation on the noise in high-Tc YBa2Cu3O7 dc SQUID magnetometer
AU - Chang, P. H.
AU - Yang, H. C.
AU - Horng, H. E.
N1 - Funding Information:
The authors acknowledge the support of the National Science Council of Taiwan, Grant No. NSC88-2112-M-002-019 and No. NSC88-2112-M-003-008.
PY - 2000/10/16
Y1 - 2000/10/16
N2 - 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.
AB - 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.
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U2 - 10.1016/S0038-1098(00)00341-0
DO - 10.1016/S0038-1098(00)00341-0
M3 - Article
AN - SCOPUS:0034299067
SN - 0038-1098
VL - 116
SP - 373
EP - 378
JO - Solid State Communications
JF - Solid State Communications
IS - 7
ER -