Correlation between magnetic and transport properties of Co/Ir/Co sandwiches and surface roughness

Colis, S.; Schmerber, G.; Dinia, A.

doi:10.1016/s0040-6090(00)01488-7

Thin Solid Films

2000

DOI: 10.1016/s0040-6090(00)01488-7

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Correlation between magnetic and transport properties of Co/Ir/Co sandwiches and surface roughness

S. Colis¹,

G. Schmerber²,

A. Dinia³

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Cited by 2 publications

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“…The disordering develop from interdiffusion at FM/AFM interface , the large interface roughness and the preferable distribution of FM clusters near the interface lead to a significant decrease of the effective coupling between the FM and the AFM. These might result in the disappearance of exchange bias [8,15,16]. Therefore, it was very important to improve surface status and reduce the interdiffusion.…”

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The Surface and Interface Microstructure of Epitaxial Pr0.7Sr0.3MnO3/La0.5Ca0.5MnO3 Bilayer Structure

Wang

Líu

Cao

et al. 2013

AMM

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Epitaxial bilayer structure consisting of ferromagnetic (FM) metallic Pr0.7Sr0.3MnO3 (PSMO) and antiferromagnetic (AFM) insulator La0.5Ca0.5MnO3 (LCMO) was fabricated on (001)-oriented single crystal SrTiO3 (STO) substrate by pulsed laser deposition technique. We studied the surface structure and interdiffusion at interface between PSMO and LCMO by using atomic force microscope and grazing incident x-ray reflectivity (GIXRR). The perfect data fitting result of GIXRR indicated that interdiffusion at the interface of Pr0.7Sr0.3MnO3/La0.5Ca0.5MnO3 (PSMO/LCMO) could not be negligible; there was a large interdiffusion zone at the PSMO/LCMO interfaces with a thickness of about 7 nm. We found that the thickness of the top layer at air/PSMO interface was about 2.5 nm and the mass density of the top layer was about 76.53% of that of PSMO layer. The surface roughness was about 1.6 nm which was consistent with observation by atomic force microscopy. Normal X-ray diffraction (NXRD) was also employed to investigate the average structure. Except from PSMO and LCMO layer diffraction peaks, we observed another additional peak, which was developed from the large disordered layer resulting from interdiffusion at the interface of PSMO/LCMO. This implied that the variation of crystalline structure of PSMO/LCMO film occurred due to interdiffusion. Surface roughness and interdiffusion played an important role in magnetic properties of FM/AFM bilayer.

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The Surface and Interface Microstructure of Epitaxial Pr0.7Sr0.3MnO3/La0.5Ca0.5MnO3 Bilayer Structure

Wang

Líu

Cao

et al. 2013

AMM

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Characterization on surface and interface structure of epitaxial Pr0.7Sr0.3MnO3/La0.5Ca0.5MnO3/Pr0.7Sr0.3MnO3 trilayer

Wang

Liu

Cao

et al. 2015

Superlattices and Microstructures

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Correlation between magnetic and transport properties of Co/Ir/Co sandwiches and surface roughness

Cited by 2 publications

References 13 publications

The Surface and Interface Microstructure of Epitaxial Pr<sub>0.7</sub>Sr<sub>0.3</sub>MnO<sub>3</sub>/La<sub>0.5</sub>Ca<sub>0.5</sub>MnO<sub>3</sub> Bilayer Structure

The Surface and Interface Microstructure of Epitaxial Pr<sub>0.7</sub>Sr<sub>0.3</sub>MnO<sub>3</sub>/La<sub>0.5</sub>Ca<sub>0.5</sub>MnO<sub>3</sub> Bilayer Structure

Characterization on surface and interface structure of epitaxial Pr0.7Sr0.3MnO3/La0.5Ca0.5MnO3/Pr0.7Sr0.3MnO3 trilayer

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