Abstract: La0.14Pr0.56Sr0.3MnO3/SrTiO3 and La0.7Ca0.3MnO3/Gd0.7Ca0.3MnO3 multilayers have been fabricated by using pulsed laser deposition. The insulator--metal transition temperatures of the multilayers decrease with the decreasing thickness of the ferromagnetic layers. It is confirmed from the experiment and analysis that a non-ferromagnetic insulating region exists near the interface, which could not be attributed to the roughness of the growth surfaces and disorder of the ferromagnetic layers.
WANG Xin;LIU Da-Meng;LIAN Gui-Jun;XIONG Guang-Cheng. Non-ferromagnetic Insulating Interface Region in La0.14Pr0.56Sr0.3MnO0.3/SrTiO3 and La0.7Ca0.3MnO3/Gd0.7Ca0.3MnO3 Multilayers[J]. 中国物理快报, 2004, 21(9): 1808-1810.
WANG Xin, LIU Da-Meng, LIAN Gui-Jun, XIONG Guang-Cheng. Non-ferromagnetic Insulating Interface Region in La0.14Pr0.56Sr0.3MnO0.3/SrTiO3 and La0.7Ca0.3MnO3/Gd0.7Ca0.3MnO3 Multilayers. Chin. Phys. Lett., 2004, 21(9): 1808-1810.