Yv. Sushko et al., STATIC MAGNETIZATION OF KAPPA-(BEDT-TTF)(2)CU[N(CN)(2)]CL UNDER HIGH-PRESSURE .2. LOW MAGNETIC-FIELD, Synthetic metals, 70(1-3), 1995, pp. 939-940
Low-field measurements have revealed the presence of paramagnetic cont
ribution to the field-cooled magnetization of single crystal of title
salt at pressures as high as 1 kbar and 1.5 kbar. This magnetization a
ppears if field is oriented normal to the conducting ac plane, at temp
erature just below the onset of bulk SC transition, and saturates at f
ields of a few Oe. Depending on thermal history, it can even dominate
over the diamagnetic Meissner signal. This behavior is similar to rece
ntly discovered (due to study of HTSC oxides), intensively studied but
still remaining not understood Wohlleben effect (or paramagnetic Meis
sner effect). For the kappa-(BEDT-TTF)(2)Cu[(CN)(2)]Ce that the coexis
ting magnetic phase might be a cause for the phenomenon.