Tuning magnetism and crystal orientations by octahedral coupling in 
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 thin films

Guan, Xiangxiang; Shen, Xi; Zhang, Jing; Wang, Wei; Zhang, Jine; Wang, Huaixiang; Wang, Weipeng; Yao, Yuan; Li, Junjie; Gu, Changzhi; Sun, J. R.; Yu, Richeng

doi:10.1103/physrevb.100.014427

Cited by 20 publications

(3 citation statements)

References 25 publications

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“…To the best of our knowledge, no indications of the emergent DP phase in the La-CoO3/LaMnO3 (LCO/LMO) SLs were found in the literature [52][53][54]. We believe that the demonstrated cation-ordered (LCO)1/(LMO)1 SL below confirms the importance of the near-equilibrium MAD growth conditions for the LL growth of DP materials.…”

Section: Cation Ordering In the La2comno6 Films Grown By Ll-madmentioning

confidence: 56%

B-Site Cation Ordering in Films, Superlattices, and Layer-by-Layer-Grown Double Perovskites

et al. 2021

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The preparation of cation-ordered thin films of correlated oxides is of great interest for both fundamental and applied research. The scientific long-term vision is strongly motivated by the perspective of studying electronic correlations in condensed matter without the presence of chemical or quenched disorder. A promising material platform provides double perovskite A2BB’O6 bulk samples with different types of B/B’ ordering. However, the growth of A- and/or B-site-ordered correlated oxide thin films is known to be a challenging task. In this review, we evaluate the growth of double perovskite A2BB’O6 thin films by means of well-elaborated physical vacuum deposition techniques, such as pulsed laser deposition (PLD) and sputtering and compare them with a close-to-equilibrium growth with the metalorganic aerosol deposition (MAD) technique. The latter was further developed to grow an emergent interfacial double perovskite phase in LaNiO3/LaMnO3 superlattices, and finally, by way of a layer-by-layer route. The growth of La2CoMnO6 films on SrTiO3(111) substrates by sequential deposition of single perovskite layers of LaCoO3/LaMnO3/LaCoO3/… was demonstrated and the film properties were compared to those obtained within the state-of-the art growth mode.

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Section: Cation Ordering In the La2comno6 Films Grown By Ll-madmentioning

confidence: 56%

B-Site Cation Ordering in Films, Superlattices, and Layer-by-Layer-Grown Double Perovskites

et al. 2021

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“…Transition metal oxide (TMO) films, especially the oxides processed by the interface engineering [1][2][3][4][5][6], have attracted extensive attention in the past decades owing to their diverse properties, such as interface charge transfer [7], two-dimensional electron gas [8], and discrepancy from bulk materials. Among TMOs, manganates exhibit distinctive performances as a result of the novel magnetic and electronic structures induced by the strong correlation between electrons as well as competition among lattice, charge, spin and orbit degrees of freedom, for instance, metal-insulator transition [9], colossal magnetoresistance [10,11], magnetocaloric effects [12], and magnetoelectric coupling multiferroic effect [13].…”

Section: Introductionmentioning

confidence: 99%

Magnetic Anisotropy Induced by Orbital Occupation States in La0.67Sr0.33MnO3 Film

Wang

Song

Wang

et al. 2021

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Interface engineering is an effective and feasible method to regulate the magnetic anisotropy of films by altering interfacial states between different films. Using the technique of pulsed laser deposition, we prepared La0.67Sr0.33MnO3 (LSMO) and La0.67Sr0.33MnO3/SrCoO2.5 (LSMO/SCO) films on the (110)-oriented La0.3Sr0.7Al0.65Ta0.35O3 substrates. By covering the SCO film above the LSMO film, we transformed the easy magnetization axis of LSMO from the [001] axis to the [1\(\stackrel{\text{-}}{\text{1}}\)0] axis in the film plane. Based on statistical analyses, we found that the corresponding Mn-Mn ionic distances are different in the two types of LSMO films, causing different distortions of Mn-O octahedron in the LSMO film. In addition, it also induces diverse electronic occupation states in Mn3+ ions. The eg electron of Mn3+ occupies 3z2-r2 and x2-y2 orbitals in the LSMO and LSMO/SCO, respectively. We conclude that the electronic spin reorientation leads to the transformation of the easy magnetization axis in the LSMO films.

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“…The spin‐orbit coupling plays a significant role in the electronic band structure, magnetic properties, and the electrical transport behavior in lots of strongly correlated systems containing 4 d and 5 d transitional elements, because of its approximate energy to the Coulomb repulsive energy and crystal field interaction energy 1‐6 ; technologically, the spin current can be controlled by the electric field or the pressure through the spin‐orbit coupling effect, 7 which is promising in data storage 8,9 and planar quantum Hall effect devices 10 . The perovskite manganite containing 3 d element exhibits rich physics due to the interaction of charge‐spin‐orbit‐lattice df s, 11,12 such as the Mn 3+ ‐O‐Mn 4+ double‐exchange ferromagnetism, 13‐17 the Mn 3+ ‐O‐Mn 3+ 18‐23 or Mn 4+ ‐O‐Mn 4+ 24‐28 super‐exchange antiferromagnetism, the Jahn‐teller (J‐T) distortion caused by the interaction between the e g electrons in Mn 3+ ions and the lattice 29‐31 . Due to the approximate charge‐spin‐orbit‐lattice interaction energy, just a perturbation, such as a slight change in composition (doping), 32,33 stress or chemical pressure (equivalent electron doping), 34‐40 external stimulation (magnetic field/ electric field/ pressure), 41‐44 can cause the significant changes in properties.…”

Section: Introductionmentioning

confidence: 99%

Magnetic properties of La_0.7Sr_0.3MnO₃ under the pressure and the transport property under the magnetic field

et al. 2020

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Polycrystalline La 0.7 Sr 0.3 MnO 3 sample (LSMO) was synthesized by the solid phase reaction; it exhibits the paramagnetic-ferromagnetic transition at T c = 362 K at the ambient pressure; it is paramagnetic metallic state above T c and the ferromagnetic metallic state below T c. It was observed that the pressure effect depends on the temperature range: (a) In the paramagnetic region, the magnetization M hardly changes with the pressure P, that is, ΔM≈0. There exist the antiferromagnetic (AFM) coupled ferromagnetic clusters in the paramagnetic region, and the pressure enhances the AFM coupling. (b) In the temperature range around T c , the pressure increases M, that is, ΔM > 0, with the concomitant increase in T c ; the average pressure coefficient dT c /dP is 5.40 K/GPa at P = .74 GPa, much smaller than 15.47 and 15.90 K/GPa for La 0.7 Ca 0.3 MnO 3 and La 0.9 Ca 0.1 MnO 3 , respectively, due to the different distortion degree of MnO 6 octahedra in Ca and Sr doped manganites. (c) In the temperature region below T c , the pressure reduces M, that is, ΔM < 0. M is determined by the competition between the Mn 3+-O-Mn 4+ double exchange and the interparticle dipolar interaction. The pressure enhances the interparticle dipolar interaction, leading to a significant decrease in magnetization. The resistivity of LSMO exhibits the metallic behavior in the temperature range of 5 K~370 K; it decreases as the applied magnetic field H increases from 0 to 7 T, that is, the magnetoresistance effect which is more significant around T c. The fitting to the low-temperature resistivity shows that the applied magnetic field reduces the scattering from the grain boundary, electron, phonon, and magnon, especially reduces the electron-electron scattering. K E Y W O R D S double exchange, Jahn-Teller distortion, La 0.7 Sr 0.3 MnO 3 , magnetic properties, pressure How to cite this article: Zhang X, Han Y, Kan X, et al. Magnetic properties of La 0.7 Sr 0.3 MnO 3 under the pressure and the transport property under the magnetic field.

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Tuning magnetism and crystal orientations by octahedral coupling in LaCoO3/LaMnO3 thin films

Cited by 20 publications

References 25 publications

B-Site Cation Ordering in Films, Superlattices, and Layer-by-Layer-Grown Double Perovskites

B-Site Cation Ordering in Films, Superlattices, and Layer-by-Layer-Grown Double Perovskites

Magnetic Anisotropy Induced by Orbital Occupation States in La0.67Sr0.33MnO3 Film

Magnetic properties of La_0.7Sr_0.3MnO₃ under the pressure and the transport property under the magnetic field

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Tuning magnetism and crystal orientations by octahedral coupling in LaCoO3/LaMnO3 thin films

Cited by 20 publications

References 25 publications

B-Site Cation Ordering in Films, Superlattices, and Layer-by-Layer-Grown Double Perovskites

B-Site Cation Ordering in Films, Superlattices, and Layer-by-Layer-Grown Double Perovskites

Magnetic Anisotropy Induced by Orbital Occupation States in La0.67Sr0.33MnO3 Film

Magnetic properties of La0.7Sr0.3MnO3 under the pressure and the transport property under the magnetic field

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Magnetic properties of La_0.7Sr_0.3MnO₃ under the pressure and the transport property under the magnetic field