Study of higher-order harmonics of complex ac susceptibility in $YB_2C_3O_{7-δ}$ thin films by the mutual inductive method

Israel Perez; Victor Sosa; Fidel Gamboa

doi:10.1016/j.physc.2010.09.014

paper

Study of higher-order harmonics of complex ac susceptibility in $Y B_{2} C_{3} O_{7 - δ}$ thin films by the mutual inductive method

arXiv:1005.4378 · doi:10.1016/j.physc.2010.09.014

Abstract

We have applied the mutual inductive method to study higher-order harmonics of complex ac susceptibility $χ_{n} = χ_{n}^{'} - i χ "_{n}$ for $$YB_2C_3O_{7-δ} $t hin f i l m s a s f u n c t i o n o f t h e t e m p er a t u r e an d t h e a ppl i e df i e l d . T h ee x p er im e n t a l r es u l t s w er eco m p a r e d w i t hana l y t i c a l an d n u m er i c a l r es u l t so b t ain e df r o m t h e I s hi d a - M a z ak im o d e l an d t h eso l u t i o n o f t h e in t e g r a l e q u a t i o n f or t h ec u r r e n t d e n s i t y, r es p ec t i v e l y . B o t hm o d e l s a l l o w u s t or e p r o d u ce d t h e main e x p er im e n t a l f e a t u r es, h o w e v er, a s$ n $in cr e a ses t h e n u m er i c a l m o d e l s h o w s n o t ab l e d i scr e p an c i es . T hi s f ai l u r ec anb e a tt r ib u t e d t o t h ec u r r e n t - v o l t a g ec ha r a c t er i s t i cs . A l so t hi s in v es t i g a t i o n y i e l d s t h e a c t i v a t i o n e n er g y$ U_c $an d t h ecr i t i c a l c u r r e n t d e n s i t y$ J_c$ for two samples both at T=0.

8 pages, 3 figures

Study of higher-order harmonics of complex ac susceptibility in YB2​C3​O7−δ​ thin films by the mutual inductive method

Abstract

Study of higher-order harmonics of complex ac susceptibility in $Y B_{2} C_{3} O_{7 - δ}$ thin films by the mutual inductive method