Model investigation of high-temperature superconductor/colossal manganite interfaces

Results in Physics

Hsiung Chou¹  Shih-Jye Sun² 

[1] Department of Physics, National Sun Yat-sen University, Kaohsiung, Taiwan, ROC;Department of Applied Physics, National University of Kaohsiung, Kaohsiung, Taiwan, ROC;

关键词: Interface of superconductor and ferromagnet;    Charge transfer;    Model simulation;   

DOI  :  

来源: DOAJ

【 摘 要 】

A heterostructure interface between a high-temperature superconductor and a colossal magnet shows unexpected magnetic properties from experimental measurements. Namely, the copper moments appear in the interfaces. Further evidence has proven that the charge transfer occurs between the interface. To understand how the odd magnetic copper moment is induced and how the charge transfer dominates the magnetic orders in the interface, we propose a theoretical model to simulate the interface. Our calculation results confirm that the odd copper moment only coexists with the ferromagnetic moment of the colossal magnet. We also demonstrate that charge transfer between interfaces significantly affects superconducting and ferromagnetic order.

【 授权许可】

Unknown