Skip to main content

The effect of Gd2BaCuO5 nanoparticles on irreversibility fields of (Nd–Sm–Gd)Ba2Cu3O7-

Buy Article:

$43.90 plus tax (Refund Policy)


The flux pinning behaviour of (Nd1/3Sm1/3Gd1/3)Ba2Cu3O7- samples, having different concentrations x of Gd2BaCuO5 secondary-phase nanoparticles, was studied using magnetoresistivity data collected in the presence of 0, 0.5, 1, 2, 4, 6, 8T magnetic fields (H) along and perpendicular to the c axis, with the transport current lying in the ab plane. Significant enhancement of the flux pinning and hence also the irreversibility field Hirr(T) was found. Hirr(T) extrapolated to 77K, Hirr77K(T), was determined from the Hirr(T) plots using best fits to an empirical formula, Hirr(T) = Hirr(0)(1- T/Tc)a, where a is a constant. Hirr77K(T) for &H\parallel c ; axis (a)remains almost constant up to x = 0.2, (b)increases beyond x = 0.2, (c)peaks at x = 0.4 and (d)falls beyond x = 0.4. Further, Hirr77K(T) values are above 15T, the maximum being 243T for the 40wt% sample.

Document Type: Research Article


Publication date: August 1, 2005


Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more