Structure and stability of fcc Fe films on Cu(100) for coverages below five monolayers

Müller, Stefan; Bayer, P.; Kinne, A.; Reischl, C.; Metzler, Richard A.; Heinz, K.

doi:10.1016/0039-6028(95)00217-0

Cited by 20 publications

(8 citation statements)

References 28 publications

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“…Such an observation is confirmed by an additional analysis of the LEED intensity profiles along the 100 directions in the proximity of the {10} spots, summarized in figure 2. This finding is in good agreement with similar systems that exhibit a fcc-bcc transition [17][18][19][20][21]. However, the martensitic family is wide and comprises different materials with specific peculiarities.…”

Section: Film Structuresupporting

confidence: 90%

“…The precursor phase is characterized by a distortion of the Ni superstructure along the main Fe crystallographic axes, namely [100] and [010], and no unit cell rotation is detected. A scanning tunneling microscopy (STM) investigation of the film shows that the martensitic transition is accompanied by the formation of Ni mounds oriented along the 110 directions, in agreement with the other bcc-fcc transitions reported in the literature [17][18][19][20][21].…”

Section: Introductionsupporting

confidence: 88%

“…In many bcc-fcc and fcc-bcc transitions observed in thin films growing on a template, the film crystal structure undergoes changes that are driven by the energetic gain obtained by relieving the surface stress, which originates from an imperfect match between the lattice parameter of the substrate and that of the growing film. In particular, the growth of both Ni and Fe on crystal surfaces usually proceeds through complex structural changes, associated with the appearance of different surface reconstructions or with a particular evolution of their magnetic characteristics [17][18][19][20][21]. Even the growth of Fe on Ni(001) displays interesting phenomenological features in both its structure and morphology [28].…”

Section: Film Structurementioning

confidence: 99%

See 2 more Smart Citations

Martensitic transition during Ni growth on Fe(001): evidence of a precursor phase

Bussetti

Riva²,

Picone³

et al. 2012

New J. Phys.

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We report evidence that the body-centered cubic (bcc)-face-centered cubic (fcc) transition that occurs during Ni film growth on a Fe(001) substrate is preceded by a pre-martensitic phase, as demonstrated by low-energy electron diffraction. The corresponding film superstructure is characterized by a displacement of Ni atoms along the main 100 crystallographic axes of iron, without any rotation of the unit cell with respect to the (001) plane, in contrast with the martensitic transition that shows four fcc Ni domains with the Ni 211 crystallographic directions aligned with the Fe 110 axes. In addition, the martensitic transition is detected not at 6 ML, as previously believed, but above 20 ML if the Ni sample is rigorously kept at room temperature. The surface morphology of the bcc-fcc transition is characterized by the development of Ni mounds oriented along the 110 directions, as shown by scanning tunneling microscopy.

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Section: Film Structuresupporting

confidence: 90%

Section: Introductionsupporting

confidence: 88%

Section: Film Structurementioning

confidence: 99%

See 1 more Smart Citation

Martensitic transition during Ni growth on Fe(001): evidence of a precursor phase

Bussetti

Riva²,

Picone³

et al. 2012

New J. Phys.

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“…The structure and magnetism of the films is known to strongly deviate from Fe bulk behavior. Below a thickness of t Fe 4:3 ML, a tetragonally distorted fcc structure is found [8,9]. In the same thickness region, the easy axis of magnetization is reoriented out of the film plane [10], ascribed to dominating surface anisotropy contributions [11,12].…”

mentioning

confidence: 94%

Temperature Dependence of the Surface Anisotropy of Fe Ultrathin Films on Cu(001)

et al. 2003

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“…The spin-reorientation transition observed in Fe/Cu͑100͒ films has been associated with a complicated structural transformation for both growth temperatures. 14,20 This implies that the physics of the spin-reorientation transition is far beyond the simple approximation of competing anisotropies mentioned above and its possible correlation with the structural transformation should be taken into account.…”

Section: Introductionmentioning

confidence: 99%

Structural transformation and spin-reorientation transition in epitaxial Fe/Cu3Au(100) ultrathin films

et al. 1997

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The magnetic properties, morphology, and crystallographic structure are studied for Fe films on Cu 3 Au͑100͒ grown at room and low temperature, using in situ magneto-optical Kerr effect, scanning tunneling microscopy, and electron diffraction techniques. At Tϭ160 K a spin-reorientation transition from perpendicular to in-plane magnetization occurs in films with Fe coverages starting from a critical thickness of 3.5 and 5.5 ML for room-temperature and low-temperature growth, respectively. Close to the critical thickness we observe an fcc-bcc structural transformation. The spin-reorientation transition is shown to be correlated to this structural change. This correlation may be explained by a drastic reduction of the perpendicular anisotropy induced by the fcc-bcc structural transformation.

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Structure and stability of fcc Fe films on Cu(100) for coverages below five monolayers

Cited by 20 publications

References 28 publications

Martensitic transition during Ni growth on Fe(001): evidence of a precursor phase

Martensitic transition during Ni growth on Fe(001): evidence of a precursor phase

Temperature Dependence of the Surface Anisotropy of Fe Ultrathin Films on Cu(001)

Structural transformation and spin-reorientation transition in epitaxial Fe/Cu3Au(100) ultrathin films

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