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The Influence of the Microwave Power on Josephson Microwave Absorption in High- Temperature Superconductors

100%

Czyżak B., Stankowski J.

Acta Physica Polonica A

1991

vol. 80

issue 1

99-106

The influence of the microwave power on the internal Josephson Junction System (JJS) in granular high T_{c}, superconductors was investigated using EPR methodology. Josephson Microwave Absorption signal was used to monitor local temperature of the Josephson Junction System while the bulk sample temperature was measured by a thermocouple. The effect of the JJS overheating is discussed as the consequence of an interaction between JJS, microwave field and the bulk sample.

High-Pressure Microwave Study of YBa_{2}Cu_{3}O_{7-δ}-Pb(Sc_{0.5}Ta_{0.5})O_{3} Composite

52%

Czyżak B., Stankowski J., Hilczer B., Krupski M., Morawski P., Andrzejewski B., Marfaing J., Régnier S., Caranoni C.

Acta Physica Polonica A

1997

vol. 91

issue 6

1103-1109

The ferroelectric relaxor Pb(Sc_{0.5}Ta_{0.5})O_{3}-superconductor YBa_{2}Cu_{3}O_{7-δ} 50% in weight composite exhibits the onset critical temperature T_{c}=95 K. High pressure studies yield the factor dT_{c}/dp of 1.0 K/GPa, close to the value observed for a pure YBa_{2}Cu_{3}O_{7-δ} compound. The microwave absorption studies show the significant role of the intergrain weak links.

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2 Acta Physica Polonica A

1 1997

1 1991

2 Czyżak B.

2 Stankowski J.

1 Andrzejewski B.

1 Caranoni C.

1 Hilczer B.

1 Krupski M.

1 Marfaing J.

1 Morawski P.

1 Régnier S.

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The Influence of the Microwave Power on Josephson Microwave Absorption in High- Temperature Superconductors

High-Pressure Microwave Study of YBa_{2}Cu_{3}O_{7-δ}-Pb(Sc_{0.5}Ta_{0.5})O_{3} Composite