La–Sr–Mn–Co–O Films for High Pulsed Magnetic Field Measurements at Cryogenic Temperatures

Rudokas, Vakaris; Žurauskienė, N.; Lukose, Rasuole; Kersulis, Skirmantas; Stankevič, Voitech; Pavilonis, Dainius; Balevičius, Saulius; Plaušinaitienė, Valentina; Vagner, Milita; Skapas, Martynas; Arsenijević, Stevan

doi:10.1109/tps.2019.2916454

Cited by 1 publication

(2 citation statements)

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“…The most significant influence of the used substrate is observed at low temperatures and low fields, when grain boundary properties determine the spin-polarized tunneling peculiarities in the films. Figure 9 f–h presents example, how magnetoresistance dependences on magnetic field, temperature and its sensitivity, respectively, depend on La-Sr-Mn-O film doping in so-called B-site (substitution of Mn by Co) [ 77 , 78 ]. One can see that higher amount of Co increases the MR values, what could be explained by partly destroyed double exchange hopping Mn 3+ −O 2− −Mn 4+ , when cobalt ions substitute manganese in the lattice, which results in increased resistivity.…”

Section: Colossal Magnetoresistance Materialsmentioning

confidence: 99%

“…The same symbol, but with thinner borders as shown for graphene and Bi 2 Te 3 , indicate that quantum oscillations superimposed on MR ( B ) dependence were observed in high fields at low temperatures. The symbols correspond to the following references for LSMO: [ 11 ], [ 54 ], [ 62 ], [ 75 ]; for LCMO: [ 72 ], [ 75 ], [ 76 ]; for LSMCO: [ 78 ]; for InSb [ 21 ], [ 111 ]; for Ag 2 Se [ 104 ]; for MnBi [ 126 ]; for Bi 2 Te 3 [ 127 ]; for Gr [ 128 ].…”

Section: Figurementioning

confidence: 99%

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Engineering of Advanced Materials for High Magnetic Field Sensing: A Review

Žurauskienė

2023

Sensors

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Advanced scientific and industrial equipment requires magnetic field sensors with decreased dimensions while keeping high sensitivity in a wide range of magnetic fields and temperatures. However, there is a lack of commercial sensors for measurements of high magnetic fields, from ∼1 T up to megagauss. Therefore, the search for advanced materials and the engineering of nanostructures exhibiting extraordinary properties or new phenomena for high magnetic field sensing applications is of great importance. The main focus of this review is the investigation of thin films, nanostructures and two-dimensional (2D) materials exhibiting non-saturating magnetoresistance up to high magnetic fields. Results of the review showed how tuning of the nanostructure and chemical composition of thin polycrystalline ferromagnetic oxide films (manganites) can result in a remarkable colossal magnetoresistance up to megagauss. Moreover, by introducing some structural disorder in different classes of materials, such as non-stoichiometric silver chalcogenides, narrow band gap semiconductors, and 2D materials such as graphene and transition metal dichalcogenides, the possibility to increase the linear magnetoresistive response range up to very strong magnetic fields (50 T and more) and over a large range of temperatures was demonstrated. Approaches for the tailoring of the magnetoresistive properties of these materials and nanostructures for high magnetic field sensor applications were discussed and future perspectives were outlined.

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Section: Colossal Magnetoresistance Materialsmentioning

confidence: 99%