Electronic and Magnetic Properties of Stoichiometric and Off-stoichiometric SrMnO3 Thin Films

• DOI: 10.1007/s10948-019-05210-9
• Publication Date: 2019-08-08T01:02:35Z
• Authors: Arup Kumar Mandal; Gyanendra Panchal; Sourav Chowdhury; Anupum Jana; R. J. Choudhary; D. M. Phase
• Keywords: Stoichiometry; X-ray absorption spectroscopy; Pulsed Laser Deposition

Two thin films of SrMnO3 (SMO) were grown on LAO (LaAlO3) (110) substrate by pulsed laser deposition (PLD) technique with different oxygen stoichiometry. From low-temperature magnetization measurements, it is observed that both films show a clear ferromagnetic kind of behavior. Electronic structure of both films has been investigated by using soft x-ray absorption spectroscopy (XAS) and photoemission spectroscopy (PES). It is revealed that the Mn-O hybridization is hugely modified due to oxygen stoichiometry, with its consequences on their magnetic properties.