Matches in SemOpenAlex for { <https://semopenalex.org/work/W4292867646> ?p ?o ?g. }
- W4292867646 endingPage "166865" @default.
- W4292867646 startingPage "166865" @default.
- W4292867646 abstract "AlCrO3+δ, δ ≤ 0.5, is a Cr4+:CrO2 product of a metastable compound of two types Cr4+−3d2 electrons that determine its spin degree of freedom and allied magnetic/optical properties at a magnetic semiconductor. A nanocolloid of Cr6+ bonded via Al3+ and O2– in small micelles (a hydrogel) in water is explored to grow up AlCrO3+δ, δ ≤ 0.5, at hydrothermal reactions at microwave irradiation. It forms hexagonal plates (20–40 nm thickness) as annealed at 500 °C − 1000 °C (microwave). It has 4.69% larger X-ray crystal density of 4.848 g/cm3 than a usual phase, AlCrO3.5 → AlCrO3 + ¼O2↑, turned up on anneals at ≥ 1000 °C, at a larger bandgap, ≥ 4.2 eV, of a Cr3+−3d3 insulator. X-ray diffraction, XPS, electronic absorption, and phonon bands studied at duly annealed samples confer a Cr5+ → Cr4+ → Cr3+ charge ordering at anneals. A 700 °C annealed sample (others behave as an antiferromagnet, AFM) exhibits a ferromagnetic (FM) loop, with an unsaturated magnetization 9.2 emu/g (at 50 kOe fields), a coercivity 3.67 kOe, and a 0.1 MGOe energy-product at room temperature. The two types FM−AFM spins channels govern electrical conduction at major charge carriers Cr4+ → Cr3+ − e–, O2– vacancies, and ‘e–−h+’ electron-hole pairs as per applied frequencies. The results have renewed interest to design and develop spintronics-photonics at Cr4+−3d2 spin doped Al2O3 type oxides." @default.
- W4292867646 created "2022-08-24" @default.
- W4292867646 creator A5054822912 @default.
- W4292867646 creator A5060704560 @default.
- W4292867646 creator A5077421413 @default.
- W4292867646 date "2022-12-01" @default.
- W4292867646 modified "2023-10-17" @default.
- W4292867646 title "A metastable Cr4+-compound AlCrO3+δ, δ ≤ 0.5, grown at a nanocolloid, and its ultraviolet absorption, phonon bands, and dielectric properties" @default.
- W4292867646 cites W1966761406 @default.
- W4292867646 cites W1966788600 @default.
- W4292867646 cites W1968240879 @default.
- W4292867646 cites W1972163349 @default.
- W4292867646 cites W1984260629 @default.
- W4292867646 cites W1993373251 @default.
- W4292867646 cites W1994648029 @default.
- W4292867646 cites W2002560327 @default.
- W4292867646 cites W2007061122 @default.
- W4292867646 cites W2015205730 @default.
- W4292867646 cites W2026244647 @default.
- W4292867646 cites W2034532415 @default.
- W4292867646 cites W2040432202 @default.
- W4292867646 cites W2050636354 @default.
- W4292867646 cites W2065193159 @default.
- W4292867646 cites W2167590372 @default.
- W4292867646 cites W2247658724 @default.
- W4292867646 cites W2404080433 @default.
- W4292867646 cites W2476034559 @default.
- W4292867646 cites W2509487866 @default.
- W4292867646 cites W2563589561 @default.
- W4292867646 cites W2627010065 @default.
- W4292867646 cites W2779401154 @default.
- W4292867646 cites W2789286458 @default.
- W4292867646 cites W2891649082 @default.
- W4292867646 cites W2897403805 @default.
- W4292867646 cites W2903048854 @default.
- W4292867646 cites W2907552914 @default.
- W4292867646 cites W2913560879 @default.
- W4292867646 cites W2921850616 @default.
- W4292867646 cites W2950130065 @default.
- W4292867646 cites W3000427731 @default.
- W4292867646 cites W3005898418 @default.
- W4292867646 cites W3043698560 @default.
- W4292867646 cites W3095884151 @default.
- W4292867646 cites W3104991648 @default.
- W4292867646 cites W3136742495 @default.
- W4292867646 cites W3150753422 @default.
- W4292867646 cites W3156811595 @default.
- W4292867646 cites W3165090506 @default.
- W4292867646 cites W3193456707 @default.
- W4292867646 cites W3203748167 @default.
- W4292867646 cites W4220942878 @default.
- W4292867646 cites W4285310997 @default.
- W4292867646 doi "https://doi.org/10.1016/j.jallcom.2022.166865" @default.
- W4292867646 hasPublicationYear "2022" @default.
- W4292867646 type Work @default.
- W4292867646 citedByCount "1" @default.
- W4292867646 countsByYear W42928676462023 @default.
- W4292867646 crossrefType "journal-article" @default.
- W4292867646 hasAuthorship W4292867646A5054822912 @default.
- W4292867646 hasAuthorship W4292867646A5060704560 @default.
- W4292867646 hasAuthorship W4292867646A5077421413 @default.
- W4292867646 hasConcept C113196181 @default.
- W4292867646 hasConcept C115260700 @default.
- W4292867646 hasConcept C121332964 @default.
- W4292867646 hasConcept C125938697 @default.
- W4292867646 hasConcept C126530901 @default.
- W4292867646 hasConcept C133386390 @default.
- W4292867646 hasConcept C155355069 @default.
- W4292867646 hasConcept C181966813 @default.
- W4292867646 hasConcept C185592680 @default.
- W4292867646 hasConcept C192562407 @default.
- W4292867646 hasConcept C207999682 @default.
- W4292867646 hasConcept C26873012 @default.
- W4292867646 hasConcept C32546565 @default.
- W4292867646 hasConcept C43617362 @default.
- W4292867646 hasConcept C49040817 @default.
- W4292867646 hasConcept C57863236 @default.
- W4292867646 hasConcept C62520636 @default.
- W4292867646 hasConcept C82217956 @default.
- W4292867646 hasConceptScore W4292867646C113196181 @default.
- W4292867646 hasConceptScore W4292867646C115260700 @default.
- W4292867646 hasConceptScore W4292867646C121332964 @default.
- W4292867646 hasConceptScore W4292867646C125938697 @default.
- W4292867646 hasConceptScore W4292867646C126530901 @default.
- W4292867646 hasConceptScore W4292867646C133386390 @default.
- W4292867646 hasConceptScore W4292867646C155355069 @default.
- W4292867646 hasConceptScore W4292867646C181966813 @default.
- W4292867646 hasConceptScore W4292867646C185592680 @default.
- W4292867646 hasConceptScore W4292867646C192562407 @default.
- W4292867646 hasConceptScore W4292867646C207999682 @default.
- W4292867646 hasConceptScore W4292867646C26873012 @default.
- W4292867646 hasConceptScore W4292867646C32546565 @default.
- W4292867646 hasConceptScore W4292867646C43617362 @default.
- W4292867646 hasConceptScore W4292867646C49040817 @default.
- W4292867646 hasConceptScore W4292867646C57863236 @default.
- W4292867646 hasConceptScore W4292867646C62520636 @default.
- W4292867646 hasConceptScore W4292867646C82217956 @default.
- W4292867646 hasLocation W42928676461 @default.