Evolution of photoinduced effects in phase-separated Sm0.5Sr0.5Mn1−yCryO3 thin films

Chai, Xiaojie; Xing, Hui; Kusaka, Jin

doi:10.1038/srep23280

Cited by 12 publications

(6 citation statements)

References 35 publications

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“…Thus by inducing the ferromagnetic phase fraction in an antiferromagnetic manganite or in other word engineering electronic phase separation is an effective tool to enhance the magnetoresistance. Recently, great amount of effort has been devoted to control the electronic phase separation in bulk and low dimensional manganites [23][24][25][26][27][28][29] .…”

Section: Introductionmentioning

confidence: 99%

Huge magnetoresistance and ultrasharp metamagnetic transition in polycrystalline Sm0.5Ca0.25Sr0.25MnO3

et al. 2018

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Large magnetoresistive materials are of immense interest for a number of spintronic applications by developing high density magnetic memory devices, magnetic sensors and magnetic switches. Colossal magnetoresistance, for which resistivity changes several order of magnitude (∼ 10 4 %) in an external magnetic field, occurs mainly in phase separated oxide materials, namely manganites, due to the phase competition between the ferromagnetic metallic and the antiferromagnetic insulating regions. Can one further enhance the magnetoresistance by tuning the volume fraction of the two phases? In this work, we report a huge colossal magnetoresistance along with the ultra-sharp metamagnetic transition in half doped Sm0.5Ca0.25Sr0.25M nO3 manganite compound by suitably tuning the volume fraction of the competing phases. The obtained magnetoresistance value at 10 K is as large as ∼ 10 13 % in a 30 kOe external magnetic field and ∼ 10 15 % in 90 kOe external magnetic field and is several orders of magnitude higher than any other observed magnetoresistance value reported so far. Using model Hamiltonian calculations we have shown that the inhomogeneous disorder, deduced from tunneling electron microscopy, suppresses the CE-type phase and seeds the ferromagnetic metal in an external magnetic field. arXiv:1710.03007v2 [cond-mat.mtrl-sci]

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Section: Introductionmentioning

confidence: 99%

Huge magnetoresistance and ultrasharp metamagnetic transition in polycrystalline Sm0.5Ca0.25Sr0.25MnO3

et al. 2018

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“…Figure 5 shows the PPC effect for the phaseseparated Sm 0.5 Sr 0.5 Mn 1−y Cr y O 3 (0 ≤ y ≤ 0.2) films under the light illumination as a function of the doping contents and temperatures. [52] We observe an evolution of persistent and transient photoinduced effects induced by impurity doping effects and temperatures, which is closely related with the number of ferromagnetic clusters and paves a way for practical applications in photoelectric devices of all-oxides. Fig.…”

Section: Charge-ordering Phase With Epsmentioning

confidence: 80%

“…(color online) PPC effect for the films under the light illumination as a function of the doping contents and temperatures. [52] Fig. 6.…”

Section: Charge-ordering Phase With Epsmentioning

confidence: 99%

Review of photoinduced effect in manganite films and their heterostructures

Zhao

Wei

et al. 2018

Chinese Phys. B

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Light-matter interaction plays an important role in the non-equilibrium physics, especially in strongly correlated electron systems with complex phases. Photoinduced effect can cause the variation in the physical properties and produce some emergent phases. As a classical archetype, manganites have received much attention due to their colossal magnetoresistance (CMR) effect and the strong interaction of charge, spin, orbital, and lattice degrees of freedom. In this paper, we give an overview of photoinduced effect in manganites and their heterostructures. In particular, some materials, including ZnO, Si, BiFeO 3 (BFO), titanate-based oxides, and 0.7Pb(Mg 1/3 Nb 2/3 )O 3 -0.3PbTiO 3 (PMN-PT) have been integrated with manganites. Heterostructures composed of these materials display some exciting and intriguing properties. We do hope that this review offers a guiding idea and more meaningful physical phenomena will be discovered in active areas of solid state physics and materials science.

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“…Temperature probe based on the Joule heating [42], by using voltage pulse, can be used to design the device. The electronic phase separation (and in turn resistive states) can also be controlled by numerous ways like, applying substrate strain, using mode-selective vibrational excitations, using photo-induction and applying pressure [37][38][39][40][41] etc.…”

Section: Design Of Two-bit Memory Devicementioning

confidence: 99%

Designing multi-level resistance states for multi-bit storage using half doped manganites

Banik,

Das,

Pradhan

et al. 2019

Preprint

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Evolution of photoinduced effects in phase-separated Sm0.5Sr0.5Mn1−yCryO3 thin films

Cited by 12 publications

References 35 publications

Huge magnetoresistance and ultrasharp metamagnetic transition in polycrystalline Sm0.5Ca0.25Sr0.25MnO3

Huge magnetoresistance and ultrasharp metamagnetic transition in polycrystalline Sm0.5Ca0.25Sr0.25MnO3

Review of photoinduced effect in manganite films and their heterostructures

Designing multi-level resistance states for multi-bit storage using half doped manganites

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