000079723 001__ 79723
000079723 005__ 20200117221630.0
000079723 0247_ $$2doi$$a10.1016/j.jallcom.2018.07.120
000079723 0248_ $$2sideral$$a107321
000079723 037__ $$aART-2018-107321
000079723 041__ $$aeng
000079723 100__ $$0(orcid)0000-0003-1930-1455$$aCiria, Miguel$$uUniversidad de Zaragoza
000079723 245__ $$aCrystal structure and local ordering in epitaxial Fe100-xGax/MgO(001) films
000079723 260__ $$c2018
000079723 5060_ $$aAccess copy available to the general public$$fUnrestricted
000079723 5203_ $$aIn this work we present a study of the structural properties of Fe100-x Gax (x < 30) films grown by Molecular Beam Epitaxy on Mg0(100). We combine long range and local/chemically selective X-ray probes (X-ray Diffraction and X-ray absorption spectroscopy) together with real space imaging by means of Transmission Electron Microscopy and surface sensitive in situ Reflected High Energy Electron Diffraction. For substrate temperature Ts below 400 °C we obtain bcc films while, for x aprox. 24 and Ts >= 400oC the nucleation of the fcc phase is observed. For both systems a Ga anticlustering or local range ordering phenomenon appears. The Ga/Fe composition in the first and second coordination shells of the bcc films is different from that expected for a random Ga distribution and is close to a D03 phase, leading to a minimization of the number Ga-Ga pairs. On the other side, a long-range D03 phase is not observed indicating that atomic ordering only occurs at a local scale. Overall, the epitaxial growth procedure presented in this work, first, avoids the formation of a long range ordered D03 phase, which is known to be detrimental for magnetostrictive properties, and second, demonstrates the possibility of growing fcc films at temperatures much lower than those required to obtain bulk fcc samples.
000079723 536__ $$9info:eu-repo/grantAgreement/ES/DGA/E10-17D$$9info:eu-repo/grantAgreement/ES/MICINN/MAT2012-31309$$9info:eu-repo/grantAgreement/ES/MICINN/MAT2015-66726-R$$9info:eu-repo/grantAgreement/ES/MINECO/BES-2016-076482
000079723 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000079723 590__ $$a4.175$$b2018
000079723 591__ $$aMATERIALS SCIENCE, MULTIDISCIPLINARY$$b65 / 293 = 0.222$$c2018$$dQ1$$eT1
000079723 591__ $$aMETALLURGY & METALLURGICAL ENGINEERING$$b6 / 76 = 0.079$$c2018$$dQ1$$eT1
000079723 591__ $$aCHEMISTRY, PHYSICAL$$b47 / 148 = 0.318$$c2018$$dQ2$$eT1
000079723 592__ $$a1.065$$b2018
000079723 593__ $$aMaterials Chemistry$$c2018$$dQ1
000079723 593__ $$aMetals and Alloys$$c2018$$dQ1
000079723 593__ $$aMechanics of Materials$$c2018$$dQ1
000079723 593__ $$aMechanical Engineering$$c2018$$dQ1
000079723 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000079723 700__ $$0(orcid)0000-0003-4079-2658$$aProietti, Maria Grazia$$uUniversidad de Zaragoza
000079723 700__ $$aCorredor, Edna C.
000079723 700__ $$0(orcid)0000-0001-7673-1297$$aCoffey, David
000079723 700__ $$0(orcid)0000-0002-2642-5635$$aBegué, Adrián
000079723 700__ $$0(orcid)0000-0001-6117-9858$$ade la Fuente, César$$uUniversidad de Zaragoza
000079723 700__ $$0(orcid)0000-0002-2624-6004$$aArnaudas, José I.$$uUniversidad de Zaragoza
000079723 700__ $$0(orcid)0000-0002-4599-3013$$aIbarra, A.$$uUniversidad de Zaragoza
000079723 7102_ $$12003$$2395$$aUniversidad de Zaragoza$$bDpto. Física Materia Condensa.$$cÁrea Física Materia Condensada
000079723 773__ $$g767 (2018), 905-914$$pJ. alloys compd.$$tJOURNAL OF ALLOYS AND COMPOUNDS$$x0925-8388
000079723 8564_ $$s1081731$$uhttps://zaguan.unizar.es/record/79723/files/texto_completo.pdf$$yPostprint
000079723 8564_ $$s58529$$uhttps://zaguan.unizar.es/record/79723/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
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000079723 951__ $$a2020-01-17-21:59:29
000079723 980__ $$aARTICLE