نتایج جستجو برای: lsmo
تعداد نتایج: 175 فیلتر نتایج به سال:
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As a prototypical half-metallic ferromagnet, La 0.67 Sr 0.33 MnO 3 (LSMO) has been extensively studied due to its versatile physical properties and great potential in spintronic applications. However, the weak perpendicular magnetic anisotropy (PMA) limits controllability detection of magnetism LSMO, thus hindering realization oxide-based devices with low energy consumption high integration lev...
Hybridization of electronic states and orbital symmetry in transition metal oxides are generally considered key ingredients the description both their magnetic properties. In prototypical case ${\mathrm{La}}_{0.65}{\mathrm{Sr}}_{0.35}{\mathrm{MnO}}_{3}$ (LSMO), a landmark system for spintronics applications, based solely on Mn $3d$ O $2p$ is reductive. We thus analyzed elemental distributions L...
We investigate the effect of electric current pulse injection on domain walls in La(0.7)Sr(0.3)MnO(3) (LSMO) half-ring nanostructures by high resolution x-ray magnetic microscopy at room temperature. Due to the easily accessible Curie temperature of LSMO, we can employ reasonable current densities to induce the Joule heating necessary to observe effects such as hopping of the domain walls betwe...
We present an unreported magnetic configuration in epitaxial La(1-x) Sr(x) MnO3 (x ∼ 0.3) (LSMO) films grown on strontium titanate (STO). X-ray magnetic circular dichroism indicates that the remanent magnetic state of thick LSMO films is opposite to the direction of the applied magnetic field. Spectroscopic and scattering measurements reveal that the average Mn valence varies from mixed Mn(3+)/...
The many surface reconstructions of (110)-oriented lanthanum--strontium manganite (La$_{0.8}$Sr$_{0.2}$MnO$_3$, LSMO) were followed as a function the oxygen chemical potential ($\mu_\text{O}$) and cation composition. Decreasing $\mu_\text{O}$ causes Mn to migrate across surface, enforcing phase separation into A-site-rich areas variety composition-related, structurally diverse B-site-rich recon...
Epitaxial growth of yttria-stabilized zirconia (YSZ) thin film on through-hole-type porous silicon [tht-PSi(001)] with vertical pores penetrating from the surface to back side Si(001) substrate was achieved. The in-plane and out-of-plane lattice parameters YSZ deposited tht-PSi(001) were, respectively 0.5167 0.5124 nm. Therefore, 0.54 % tensile strain applied film. Also for this work, an all ep...
Transport across an La0.7Sr0.3MnO3/YBa2Cu3O7−x (LSMO/YBCO) interface is studied as a function of temperature and surface morphology. For comparison, control measurements are performed in non-magnetic heterostructures of LaNiO3/YBCO and Ag/YBCO. In all cases, YBCO is used as bottom layer to eliminate the channel resistance and to minimize thermal effects. The observed differential conductance re...
در این پایان نامه ویژگی های ساختاری، الکتریکی و مغناطیسی نمونه های کپه ای و لایه نازک منگنایتهای la0.85sr0.15mno3 و la0.85ca0.15mno3مورد بررسی قرار گرفته است. ویژگی های مغناطیسی نمونه کپه ای lsmo توسط پذیرفتاری مغناطیسی متناوب مورد بررسی قرار گرفت.لایه نشانی منگنایتهای la0.85sr0.15mno3 و la0.85ca0.15mno3 بر روی زیرلایه (lao) laalo3 با استفاده از روش لیزر پالسی (pld) صورت گرفت. ویژگی های الکتریک...
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