Matches in SemOpenAlex for { <https://semopenalex.org/work/W2800390071> ?p ?o ?g. }
Showing items 1 to 89 of
89
with 100 items per page.
- W2800390071 abstract "Author(s): KC, Amit | Advisor(s): Lederman, David | Abstract: Recent computational work predicted orthorhombic antiferromagnetic NaMnF3 to undergo a ferroelectric transition if an a = c structural distortion is imposed. Such a distortion may be achieved by epitaxial growth of NaMnF3 on a cubic substrate in thin film form. It has been shown that the a = c distortion leads to the freezing of a soft polar mode resulting in a structural transformation from a non-polar Pnma to a polar Pna21 space group with a polarization of P = 6 μ C/cm2 along the long axis. A weak ferromagnetic phase and an amplification of magnetoelectric coupling are also expected in the strained films, with a magnetoelectric response comparable to Cr2O3.In this work, I investigate multiferroicity in NaMnF3 thin films. Epitaxial NaMnF3 thin films were grown on cubic SrTiO3 (001) single crystal substrates via molecular beam epitaxy (MBE). Thin film structural quality was investigated as a function of the substrate temperature and film thickness using X-ray diffraction (XRD), in-situ reflection high-energy electron diffraction (RHEED), and atomic force microscopy (AFM). The best films were smooth single phase grown at 250 − 300 ◦C substrate temperatures with four different twin domains. In-plane magnetization measure- ments using a superconducting quantum interference device (SQUID) magnetometer revealed antiferromagnetic ordering with weak ferromagnetism below the Neel tem- perature TN = 66 K. Reproducible room temperature ferroelectric switching by avoltage-biased scanning probe was detected with preferred up (out-of-plane) polar- ization using piezoresponse force microscopy. An interesting 180◦ out-of-plane polar- ization flip by the application of an in-plane electric field was also observed.For the exchange bias and dielectric studies, NaMnF3 films were grown on 30 nm SrRuO3 (001) layer, which was used as a ferromagnetic layer as well as a bottom electrode, and grown via pulsed laser deposition. After field cooling below the Neel temperature of NaMnF3, hysteresis loops were measured as the function of tempera- ture. A negative exchange bias was found with the blocking temperature (TB) ∼ 45 K. The complex permittivity as a function of frequency measurements indicated a strong Debye-like relaxation. A power-law divergence of the characteristic relaxation time revealed an order-disorder phase transition at 8 K." @default.
- W2800390071 created "2018-05-17" @default.
- W2800390071 creator A5021344437 @default.
- W2800390071 date "2018-01-01" @default.
- W2800390071 modified "2023-09-27" @default.
- W2800390071 title "Multiferrocity In Fluoroperovskite Thin Films" @default.
- W2800390071 hasPublicationYear "2018" @default.
- W2800390071 type Work @default.
- W2800390071 sameAs 2800390071 @default.
- W2800390071 citedByCount "0" @default.
- W2800390071 crossrefType "journal-article" @default.
- W2800390071 hasAuthorship W2800390071A5021344437 @default.
- W2800390071 hasConcept C110738630 @default.
- W2800390071 hasConcept C115260700 @default.
- W2800390071 hasConcept C115624301 @default.
- W2800390071 hasConcept C120665830 @default.
- W2800390071 hasConcept C121332964 @default.
- W2800390071 hasConcept C133386390 @default.
- W2800390071 hasConcept C155355069 @default.
- W2800390071 hasConcept C171250308 @default.
- W2800390071 hasConcept C172436747 @default.
- W2800390071 hasConcept C185592680 @default.
- W2800390071 hasConcept C19067145 @default.
- W2800390071 hasConcept C192562407 @default.
- W2800390071 hasConcept C207114421 @default.
- W2800390071 hasConcept C26873012 @default.
- W2800390071 hasConcept C2779227376 @default.
- W2800390071 hasConcept C32546565 @default.
- W2800390071 hasConcept C37243968 @default.
- W2800390071 hasConcept C3792809 @default.
- W2800390071 hasConcept C49040817 @default.
- W2800390071 hasConcept C62520636 @default.
- W2800390071 hasConcept C73922627 @default.
- W2800390071 hasConcept C77557913 @default.
- W2800390071 hasConcept C79090758 @default.
- W2800390071 hasConcept C8010536 @default.
- W2800390071 hasConcept C82217956 @default.
- W2800390071 hasConceptScore W2800390071C110738630 @default.
- W2800390071 hasConceptScore W2800390071C115260700 @default.
- W2800390071 hasConceptScore W2800390071C115624301 @default.
- W2800390071 hasConceptScore W2800390071C120665830 @default.
- W2800390071 hasConceptScore W2800390071C121332964 @default.
- W2800390071 hasConceptScore W2800390071C133386390 @default.
- W2800390071 hasConceptScore W2800390071C155355069 @default.
- W2800390071 hasConceptScore W2800390071C171250308 @default.
- W2800390071 hasConceptScore W2800390071C172436747 @default.
- W2800390071 hasConceptScore W2800390071C185592680 @default.
- W2800390071 hasConceptScore W2800390071C19067145 @default.
- W2800390071 hasConceptScore W2800390071C192562407 @default.
- W2800390071 hasConceptScore W2800390071C207114421 @default.
- W2800390071 hasConceptScore W2800390071C26873012 @default.
- W2800390071 hasConceptScore W2800390071C2779227376 @default.
- W2800390071 hasConceptScore W2800390071C32546565 @default.
- W2800390071 hasConceptScore W2800390071C37243968 @default.
- W2800390071 hasConceptScore W2800390071C3792809 @default.
- W2800390071 hasConceptScore W2800390071C49040817 @default.
- W2800390071 hasConceptScore W2800390071C62520636 @default.
- W2800390071 hasConceptScore W2800390071C73922627 @default.
- W2800390071 hasConceptScore W2800390071C77557913 @default.
- W2800390071 hasConceptScore W2800390071C79090758 @default.
- W2800390071 hasConceptScore W2800390071C8010536 @default.
- W2800390071 hasConceptScore W2800390071C82217956 @default.
- W2800390071 hasLocation W28003900711 @default.
- W2800390071 hasOpenAccess W2800390071 @default.
- W2800390071 hasPrimaryLocation W28003900711 @default.
- W2800390071 hasRelatedWork W1481113626 @default.
- W2800390071 hasRelatedWork W1583469944 @default.
- W2800390071 hasRelatedWork W1834498325 @default.
- W2800390071 hasRelatedWork W1975190588 @default.
- W2800390071 hasRelatedWork W1975487664 @default.
- W2800390071 hasRelatedWork W1982831296 @default.
- W2800390071 hasRelatedWork W1983004831 @default.
- W2800390071 hasRelatedWork W2005189322 @default.
- W2800390071 hasRelatedWork W2043352618 @default.
- W2800390071 hasRelatedWork W2046493743 @default.
- W2800390071 hasRelatedWork W2051013750 @default.
- W2800390071 hasRelatedWork W2064575080 @default.
- W2800390071 hasRelatedWork W2069258917 @default.
- W2800390071 hasRelatedWork W2081936659 @default.
- W2800390071 hasRelatedWork W24244890 @default.
- W2800390071 hasRelatedWork W2509075888 @default.
- W2800390071 hasRelatedWork W2912872731 @default.
- W2800390071 hasRelatedWork W2942790503 @default.
- W2800390071 hasRelatedWork W2993033183 @default.
- W2800390071 hasRelatedWork W2999572889 @default.
- W2800390071 isParatext "false" @default.
- W2800390071 isRetracted "false" @default.
- W2800390071 magId "2800390071" @default.
- W2800390071 workType "article" @default.