Nanostructured La–Sr–Mn–Co–O Films for Room-Temperature Pulsed Magnetic Field Sensors

Žurauskienė, N.; Rudokas, Vakaris; Balevičius, Saulius; Kersulis, Skirmantas; Stankevič, Voitech; Vasiliauskas, Remigijus; Plaušinaitienė, Valentina; Vagner, Milita; Lukose, Rasuole; Skapas, Martynas; Juškėnas, Remigijus

doi:10.1109/tmag.2017.2708980

Cited by 13 publications

(7 citation statements)

References 20 publications

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“…Such nanostructured films have an advantage in comparison with the epitaxial ones, since the magnetic sensors produced using these films operate in a broader temperature and magnetic field range 41 . It was demonstrated that La 1−x Sr x MnO 3 films doped with a certain amount of Co (y = 0.06–0.08) exhibit higher resistivity and magnetoresistance values at room temperature 42,43 thus, the substitution of Co for Mn in manganite films could increase the sensitivity of the sensors to magnetic field. Figure 5 presents the magnetoresistance dependences on magnetic flux density for two films: LSMO and LSMCO doped with Co (y = 0.14), exhibiting negative colossal magnetoresistance phenomenon.…”

Section: Resultsmentioning

confidence: 99%

“…The dopping at so-called B-site (Co substitution for Mn), destroys the long range ferromagnetic ordering and Mn 3+ -O-Mn 4+ network, resulting in the change of electric and magnetic properties. Thus, the Co substitution for Mn results in the decrease of the transition temperature from the paramagnetic to ferromagnetic phase and increase of the resistivity, resulting in the increase of room temperature magnetoresistance 42,43 . However, to compare MR values of manganite-cobaltite films and MR of graphene layers is complicated and not straightforward.…”

Section: Resultsmentioning

confidence: 99%

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Room temperature Co-doped manganite/graphene sensor operating at high pulsed magnetic fields

Lukose

Žurauskienė

Stankevič

et al. 2019

Sci Rep

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The demand to increase the sensitivity to magnetic field in a broad magnetic field ranges has led to the research of novel materials for sensor applications. Therefore, the hybrid system consisting of two different magnetoresistive materials – nanostructured Co-doped manganite La 1−x Sr x (Mn 1−y Co y ) z O 3 and single- and few-layer graphene – were combined and investigated as potential system for magnetic field sensing. The negative colossal magnetoresistance ( CMR ) of manganite-cobaltite and positive one of graphene gives the possibility to increase the sensitivity to magnetic field of the hybrid sensor. The performed magnetoresistance ( MR ) measurements of individual few layer (n = 1–5) graphene structures revealed the highest MR values for three-layer graphene (3LG), whereas additional Co-doping increased the MR values of nanostructured manganite films. The connection of 3LG graphene and Co-doped magnanite film in a voltage divider configuration significantly increased the sensitivity of the hybrid sensor at low and intermediate magnetic fields (1–2 T): 70 mV/VT of hybrid sensor in comparison with 56 mV/VT for 3LG and 12 mV/VT for Co-doped magnanite film, respectively, and broadened the magnetic field operation range (0.1–20) T of the produced sensor prototype.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Room temperature Co-doped manganite/graphene sensor operating at high pulsed magnetic fields

Lukose

Žurauskienė

Stankevič

et al. 2019

Sci Rep

Self Cite

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“…The possibility to construct CMRs LSMO films with B-site doping was also studied. Žurauskienė et al in 2017 [161] reported the results of a room temperature MR analysis of nanostructured La (1-x) Sr x Mn (1-y) Co y O 3 (LSMCO) films with varied cobalt content, comparing them to the LMSO films. The presence of Co as a B-site dopant ion causes the ferromagnetic order of Mn to be destroyed, resulting in changes in the magnetic and electrical properties of the manganite.…”

Section: Lsmomentioning

confidence: 99%

“…The T m lowered as the Co substitution for Mn increased, whereas the resistivity maximum tends to increase. [161] Another intriguing manganite is the Pr (1-x) Ca x MnO 3 (PCMO) phase, which has the property of having a significant resistance shift when an electric pulse is applied and might be utilized for the next-generation resistive non-volatile memory (ReRAM). The MOCVD fabrication of PCMO films with the desired atomic composition was reported by Nakamura et al [162] The feasibility of developing PCMO films at low temperatures was examined since hybrid integration of such perovskite material on silicon demands low deposition temperatures.…”

Section: Lsmomentioning

confidence: 99%

Metal‐Organic Chemical Vapor Deposition of Oxide Perovskite Films: A Facile Route to Complex Functional Systems

Presti

Pellegrino

Malandrino

2022

Adv Materials Inter

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Perovskite oxide type materials exhibit a great profusion of unique functional properties and for this reason they have been named inorganic chameleon. Nevertheless, their actual applications require the availability of these systems in thin‐film form synthesized through a simple, scalable, and straightforward technique. Metal‐organic chemical vapor deposition (MOCVD) has been shown to be an outstanding process to prepare thin films of multi‐component oxides. Herein, the focus is devoted to oxide perovskite thin films on both single crystal and non‐single crystal substrates through MOCVD processes. This study discusses the principles and the basic rules governing conventional, plasma‐enhanced, and liquid‐assisted MOCVD processes. Among a plethora of oxide perovskites, several classes of functionalities belonging to the perovskite class: from superconductors to dielectrics and giant‐k dielectrics, from colossal magnetoresistance to ionic conductors, piezoelectrics and ferroelectrics, are explored in detail.

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“…All these phenomena have been the subject of a great deal of research, in view of possible applications in spin electronics and magnetism. In this respect, magnetoresistive materials are already used today in a number of commercially available devices, such as magnetic sensors [8,9], magnetic recording heads [10], and magnetic memories [11,12]. The magnetoresistance effect, when observed in metals, is normally very small and offers scarce possibilities for technological applications.…”

Section: Introductionmentioning

confidence: 99%

What Can Electric Noise Spectroscopy Tell Us on the Physics of Perovskites?

Barone

Pagano

2021

Coatings

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Electric noise spectroscopy is a non-destructive and a very sensitive method for studying the dynamic behaviors of the charge carriers and the kinetic processes in several condensed matter systems, with no limitation on operating temperatures. This technique has been extensively used to investigate several perovskite compounds, manganese oxides (La1−xSrxMnO3, La0.7Ba0.3MnO3, and Pr0.7Ca0.3MnO3), and a double perovskite (Sr2FeMoO6), whose properties have recently attracted great attention. In this work are reported the results from a detailed electrical transport and noise characterizations for each of the above cited materials, and they are interpreted in terms of specific physical models, evidencing peculiar properties, such as quantum interference effects and charge density waves.

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Nanostructured La–Sr–Mn–Co–O Films for Room-Temperature Pulsed Magnetic Field Sensors

Cited by 13 publications

References 20 publications

Room temperature Co-doped manganite/graphene sensor operating at high pulsed magnetic fields

Room temperature Co-doped manganite/graphene sensor operating at high pulsed magnetic fields

Metal‐Organic Chemical Vapor Deposition of Oxide Perovskite Films: A Facile Route to Complex Functional Systems

What Can Electric Noise Spectroscopy Tell Us on the Physics of Perovskites?

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