The structural and magnetic features of perovskite oxides La1–xSrxMnO3+δ (x = 0.05, 0.10, 0.20) depending on the strontium doping content and heat treatment

Pchelina, Diana; Sedykh, V. D.; Chistyakova, N. I.; Rusakov, V. S.; Alekhina, Yu. A.; Tselebrovskiy, Alexey; Fraisse, Bernard; Stievano, Lorenzo; Sougrati, Moulay Tahar

doi:10.1016/j.ceramint.2022.11.270

Cited by 5 publications

(1 citation statement)

References 52 publications

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“…Due to the doping of Sr, Mn 3+ and Mn 4+ are found co-existed in B site, which determine the curie temperature of the magnetic transition of La 0.7 Sr 0.3 MnO 3 reaches 362.9 K. [18] Dwivedi et al synthesized (La 1−x Pr x ) 0.65 Ca 0.35 MnO 3 (x = 0.4, 0.6) by high-temperature solid phase method, and compared the electronic structures of these two by X-ray absorption spectroscopy and ultraviolet photoelectron spectroscopy. [19] They found that the increased Pr substitution triggered the extension of the top Mn-O bond length, and eventually led to the narrow bandgap. The valence state of Mn was confirmed between Mn 3+ and Mn 4+ by using a near-side X-ray absorption spectrum, which was consistent with the calculated value of 3.35.…”

Section: Synthesis and Crystal Structure Of The Binary State Manganat...mentioning

confidence: 99%

A Review of Synthesis and Novel Transport Properties of Multivalent Manganate Perovskite: Progress, Opportunities, and Challenges

Feng,

Zhang,

Hou

et al. 2024

Adv Elect Materials

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Understanding the microstructure of materials and their impact on performance is crucial for new electronic devices design. The strong interaction between multiple degrees of freedom (spin, orbit, charge, and lattice) within perovskite type oxides can generate rich electron phase diagrams. The microscopic modulation of manganese ions electron states in rare earth manganate perovskites is the root of many novel macroscopic quantum behaviors, such as giant magnetoresistance phenomenon. For ABO3 type perovskites, the differences of radii and valence states of A‐site ions are used to regulate the coexistence of B site manganese multivalent states (Mn3+, Mn4+, Mn5+), and its ordered structure in the metastable state will create a new combination of electronic states. The ordered arrangement of the multi‐dimensional space of electronic states can induce unique transport properties. Therefore, the preparation of manganate perovskites will provide strong chemical support to construct new generation quantum devices. This review summarizes the challenges and difficulties on constructing trivalent coexisting metastable phase in manganate perovskites through disproportionation reactions, and discusses the status and potential of designing ideal rectified p‐n junctions taking advantage of this unique structure. Finally, the foregrounds of new quantum states driven by this chemical reaction are prospected.

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Section: Synthesis and Crystal Structure Of The Binary State Manganat...mentioning

confidence: 99%

A Review of Synthesis and Novel Transport Properties of Multivalent Manganate Perovskite: Progress, Opportunities, and Challenges

Feng,

Zhang,

Hou

et al. 2024

Adv Elect Materials

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Optimizing the curie temperature of La0.67Sr0.33MnO3–based composite materials around room temperature through the addition of Mo, Mn, and Ni metallic elements

Ak,

Coşkun,

Çetin

et al. 2024

J Mater Sci: Mater Electron

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Our study sheds light on the role of secondary phases in optimizing the magnetic properties of LSMO, offering valuable insights into the relationship between impurity phases, Curie temperature (TC), and magnetic entropy change. To achieve this goal, the Mn, Ni, and Mo elements were individually incorporated into the LSMO matrix to the formation of secondary phases. The solid-state reaction method was employed to create composite materials of (0.8)La0.67Sr0.33MnO3 + (0.2)A (A=Mn, Ni, and Mo). XRD and SEM results confirmed the successful formation of impurity phases within the main LSMO phase. From temperature-dependent magnetization (M(T)) measurements, it was determined that the TC of the samples approach towards room temperature with the existence of impurity phases. Additionally, the relationship between electron bandwidth (W) and TC was examined. The lowest TC value was observed for the lowest value of W. Besides these, the effect of the formation of impurity phases on the maximum magnetic entropy change ($$-\Delta {S}_{M}^{max}$$ - Δ S M max ) value is examined, and it is seen that impurity phases cause a decrease in the $$(-\Delta {S}_{M}^{max})$$ ( - Δ S M max ) values.

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Developing ABO3 perovskites synthesized by the Pechini method for their potential application as cathode material in solid oxide fuel cells: Structural and electrical properties

Domínguez-Crespo,

Torres-Huerta,

Brachetti-Sibaja

et al. 2024

Boletín de la Sociedad Española de Cerámica y Vidrio

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The structural and magnetic features of perovskite oxides La1–xSrxMnO3+δ (x = 0.05, 0.10, 0.20) depending on the strontium doping content and heat treatment

Cited by 5 publications

References 52 publications

A Review of Synthesis and Novel Transport Properties of Multivalent Manganate Perovskite: Progress, Opportunities, and Challenges

A Review of Synthesis and Novel Transport Properties of Multivalent Manganate Perovskite: Progress, Opportunities, and Challenges

Optimizing the curie temperature of La0.67Sr0.33MnO3–based composite materials around room temperature through the addition of Mo, Mn, and Ni metallic elements

Developing ABO3 perovskites synthesized by the Pechini method for their potential application as cathode material in solid oxide fuel cells: Structural and electrical properties

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