Low-field magnetoresistance and switching behavior of polycrystalline La 0.66 Sr 0.34 MnO 3 /YSZ(001) films with columnar grain structure

Vengalis, B.; Grigaliūnaitė-Vonsevičienė, Gražina; Maneikis, Andrius; Klimantavicius, Jonas; Juškėnas, Remigijus; Mažeika, Kęstutis

doi:10.1016/j.tsf.2017.01.040

Cited by 8 publications

(5 citation statements)

References 33 publications

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“…As can be seen from Figure b–e, the absolute LFMR decreases with increasing temperature (≈25% at 5 K, 17% at 100 K, 8% at 200 K, and 2% at 300 K). These values are similar or slightly higher than those obtained from solution-processed LSMO or related perovskite-type manganese oxides …”

Section: Resultssupporting

confidence: 70%

“…These values are similar or slightly higher than those obtained from solution-processed LSMO or related perovskite-type manganese oxides. 57 Finally, we demonstrate that carriers can be electrostatically induced into the films via capacitive double-layer charging. This is intriguing as it allows tuning of the magnetization in situ.…”

Section: Acs Applied Materials and Interfacesmentioning

confidence: 82%

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Applying Capacitive Energy Storage for In Situ Manipulation of Magnetization in Ordered Mesoporous Perovskite-Type LSMO Thin Films

Reitz¹,

Wang²,

Stoeckel

et al. 2017

ACS Appl. Mater. Interfaces

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Mesostructured nonsilicate materials, particularly mixed-metal oxides, are receiving much attention in recent years because of their potential for numerous applications. Via the polymer-templating method, perovskite-type lanthanum strontium manganese oxide (LaSrMnO, LSMO, with x ≈ 0.15 to 0.30) with a continuous 3D cubic network of 23 nm pores is prepared in thin-film form for the first time. Characterization results from grazing incidence X-ray scattering, X-ray photoelectron spectroscopy, Rutherford backscattering spectrometry, and electron microscopy and tomography show that the dip-coated sol-gel-derived films are of high quality in terms of both composition and morphology and that they are stable to over 700 °C. Magnetic and magnetotransport measurements demonstrate that the material with the highest strontium concentration is ferromagnetic at room temperature and exhibits metallic resistivity behavior below 270 K. Besides, it behaves differently from epitaxial layers (e.g., enhanced low-field magnetoresistance effect). It is also shown that carriers (electrons and holes) can be induced into the polymer-templated mesostructured LSMO films via capacitive double-layer charging. This kind of electrostatic doping utilizing ionic liquid gating causes large relative changes in magnetic susceptibility at room temperature and is a viable technique to tune the magnetic phase diagram in situ.

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Section: Resultssupporting

confidence: 70%

Section: Acs Applied Materials and Interfacesmentioning

confidence: 82%

Applying Capacitive Energy Storage for In Situ Manipulation of Magnetization in Ordered Mesoporous Perovskite-Type LSMO Thin Films

Reitz¹,

Wang²,

Stoeckel

et al. 2017

ACS Appl. Mater. Interfaces

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“…1b). A similar pattern was observed for a La 0.66 Sr 0.34 MnO 3 /YSZ film in [14]. This structure is formed by columnar oriented crystallites grown throughout the film thickness, which radically differs from the island character of growth of epitaxial LBM/STO films [15].…”

Section: Methodssupporting

confidence: 68%

Magnetoreflection and Kerr Effect in La2/3Ba1/3MnO3 Films with a Variant Structure

et al. 2020

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A correlation between the effect of magnetoreflection of natural light and tunnel magnetoresistance has been found in La 2/3 Ba 1/3 MnO 3 films with a variant structure grown on ZrO 2 (Y 2 O 3 ) substrates. It is shown that the magnetoreflection effect and giant magnetoresistance in these films are maximum in the region of magnetic ordering near room temperature (T C ≈ 295 K). Magnetoreflection spectra of a La 2/3 Ba 1/3 MnO 3 film with a variant structure are formed via the same mechanisms as for films without a variant structure and can be described within the theory of the magnetorefractive effect. The field and temperature dependences of the magnetoreflection exhibit the presence of an additional low-temperature contribution to the reflection of a La 2/3 Ba 1/3 MnO 3 film due to the tunneling of spin-polarized electrons through structural domain boundaries.

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“…2b) [20]. The authors of [21,22] experimentally showed that such temperature dependence of TMR in manganite films on YSZ substrates is associated with destruction of the coherence of the structural domain boundaries and appearance of polycrystallinity. Estimation of the degree of spin-polarization at T ?…”

Section: Temperature Dependencesmentioning

confidence: 99%

“…First of all, upon variation of the geometry of experiment and application of magnetic field either along (H||q) or perpendicular (H\q) to the film's surface, the influence of the form factor was 3 times less than the expected N = 4p for thin films. The reduced N value for the film with variant structure may be explained by the influence of structural domain boundaries on the dynamics of magnetic domains in applied magnetic field [21].…”

Section: Magnetic Field Dependencesmentioning

confidence: 99%

Magnetooptical response to tunnel magnetoresistance in manganite films with a variant structure

Telegin

Barsaume

Bessonova

et al. 2018

Journal of Magnetism and Magnetic Materials

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show abstract

Low-field magnetoresistance and switching behavior of polycrystalline La 0.66 Sr 0.34 MnO 3 /YSZ(001) films with columnar grain structure

Cited by 8 publications

References 33 publications

Applying Capacitive Energy Storage for In Situ Manipulation of Magnetization in Ordered Mesoporous Perovskite-Type LSMO Thin Films

Applying Capacitive Energy Storage for In Situ Manipulation of Magnetization in Ordered Mesoporous Perovskite-Type LSMO Thin Films

Magnetoreflection and Kerr Effect in La2/3Ba1/3MnO3 Films with a Variant Structure

Magnetooptical response to tunnel magnetoresistance in manganite films with a variant structure

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