2017
DOI: 10.1063/1.5004096
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Direct observation of magnetic domain evolution in the vicinity of Verwey transition in Fe3O4 thin films

Abstract: We report a direct observation of magnetic domain evolution near the Verwey transition (T V ) in Fe 3 O 4 films. We found the stripe domains in the Fe 3 O 4 /Mg 2 TiO 4 film while the irregular domains in the Fe 3 O 4 /MgO film and the similar characters of magnetic domains in the vicinity of T V for both samples: the bigger domain size and the higher contrast of the phase signal below T V and the more disordered domain images at T V . Remarkably, the magnetic behaviors can be well understood and the domain-wa… Show more

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Cited by 9 publications
(6 citation statements)
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“…A magnetic field applied to a multidomain ferromagnet will favor the expansion of a magnetic domain over its neighbors and move the bordering domain walls . The field‐induced domain wall motion usually has no preferred direction.…”
Section: Manipulation Of Magnetic Materials By Spin–orbit Torquesmentioning
confidence: 99%
“…A magnetic field applied to a multidomain ferromagnet will favor the expansion of a magnetic domain over its neighbors and move the bordering domain walls . The field‐induced domain wall motion usually has no preferred direction.…”
Section: Manipulation Of Magnetic Materials By Spin–orbit Torquesmentioning
confidence: 99%
“…Verwey transition in Fe 3 O 4 nanocrystals has been observed by means of magnetization versus temperature measurements [5][6][7], photoelectron spectroscopy [8,9], electron paramagnetic resonance [10], electric transport characterization [11], and also by heat capacity measurements [12]. Recently, evo lution of magnetic domains [13] and anisotropic magnetoresistance [14] have been reported in epitaxial magnetite thin-films across the transition.…”
Section: Introductionmentioning
confidence: 99%
“…Stripes observed by MFM are a result of the presence of phases with a moderate PMA. Stripes have been previously reported in Fe 3 O 4 [ 39 , 40 ], whereas FeGa generally presents a magnetic contrast known as ripple [ 33 , 41 , 42 ], and to the best of our knowledge, there are no published works about stripes in Fe 2 O 3 or GFO. Since magnetic stripes are present in the samples with the highest proportion of Fe 3 O 4 , they can be used to track Fe 3 O 4 segregation ( Table 2 ).…”
Section: Resultsmentioning
confidence: 99%