Metastable rhombohedral Fe phase formed in Fe/Sb multilayers and its magnetic properties

Electron-Beam-Induced Deposition of Fe Nanoparticles and Thin Films on SrTiO3 Substrates

“…The existence of metastable Fe phases has been reported on fcc substrates when the thickness of the Fe layers is less than several nanometers such as strained fcc phases on Cu, Pt, and Pd substrates and a rhombohedral phase on an Sb substrate. [18][19][20][21] The phase observed in this study could be explained as a metastable fcc phase of a thin Fe film that grows epitaxially and incommensurately on the substrate. Another possible explanation for the spots in the pattern and the fringes in the image is the disordering of substrate lattice due to annealing and electron beam irradiation.…”

Double-Layer Hexagonal Fe Nanocrystals and Magnetism

“…A variety of iron structures as well as their applications in optoelectronics and magnetism have been attracting many research interests. Many kinds of iron-based nanomaterials such as single iron, iron oxide, and alloy have been prepared by several methods. – For instance, some metastable phases of iron have been prepared in multilayer films by molecule beam epitaxy (MBE). – Interestingly, Mao et al observed a metastable phase of iron called double-layer hexagonal close-packed (DHCP) by synchrotron X-ray diffraction experiment in a diamond-anvil cell system, which suggested that, besides the ϵ (HCP) iron, the DHCP iron may be one of the high-pressure phases of iron in the earth’s core. However, there have not been any studies showing the DHCP iron could exist under the conditions of room temperature and ambient pressure. , Recently, we have developed a laser-basis technique to prepare nanomaterials and nanostructures with metastable phases, i.e., pulsed-laser-induced liquid–solid interface reaction (PLIIR) .…”

“…[1][2][3][4][5][6][7][8][9] For instance, some metastable phases of iron have been prepared in multilayer films by molecule beam epitaxy (MBE). [10][11][12][13][14] Interestingly, Mao et al 15 observed a metastable phase of iron called double-layer hexagonal close-packed (DHCP) by synchrotron X-ray diffraction experiment in a diamond-anvil cell system, which suggested that, besides the (HCP) iron, the DHCP iron may be one of the high-pressure phases of iron in the earth's core. However, there have not been any studies showing the DHCP iron could exist under the conditions of room temperature and ambient pressure.…”

The magnetic moments and their long‐range ordering for Fe atoms in a wide variety of metallic environments

“…More surprising is the fact that other iron phases can be realized. Pan et al45 have reported the preparation of Fe/Sb multilayers films varying Fe and Sb layer thickness in vapor deposition experiments. Their finding was that a metastable rhombohedral Fe phase was created in the Fe/Sb multilayered films, when the Fe layer had thickness 1.7 nm and the Sb layer was of 10 nm.…”