Mn is substituted at Cu site in YBa2Cu3O7 (YBCO) compound and its effect on superconductivity of YBa2Cu3-xMnxOy (x = 0.0, 0.03, 0.09, 0.15, 0.21, 0.30) system has been studied. It is discussed that the resistivity upturn at low temperature in heavily doped samples may be due to the presence of Mn derived impurity phase. Mn appeared to reduce hole density without affecting the 1/T behavior of the Hall coefficient (R(H)). An attempt has been made to correlate the results of susceptibility with resistivity, hole density and structural changes with the Mn content.
INFLUENCE OF MN DOPING ON THE SUPERCONDUCTING PROPERTIES OF THE YBA2CU3-XMNXOY SYSTEM / Saini, Naurang Lal; P., Srivastava; B. R., Shekar; K. B., Garg. - In: INTERNATIONAL JOURNAL OF MODERN PHYSICS B. - ISSN 0217-9792. - STAMPA. - 6:(1992), pp. 3515-3524. [10.1142/s0217979292001547]
INFLUENCE OF MN DOPING ON THE SUPERCONDUCTING PROPERTIES OF THE YBA2CU3-XMNXOY SYSTEM
SAINI, Naurang Lal;
1992
Abstract
Mn is substituted at Cu site in YBa2Cu3O7 (YBCO) compound and its effect on superconductivity of YBa2Cu3-xMnxOy (x = 0.0, 0.03, 0.09, 0.15, 0.21, 0.30) system has been studied. It is discussed that the resistivity upturn at low temperature in heavily doped samples may be due to the presence of Mn derived impurity phase. Mn appeared to reduce hole density without affecting the 1/T behavior of the Hall coefficient (R(H)). An attempt has been made to correlate the results of susceptibility with resistivity, hole density and structural changes with the Mn content.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
