Structural and magnetic properties of epitaxial
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We report on the synthesis and characterization of
M
n
3
Ga
thin films with controlled phase and orientation using DC magnetron sputtering. High-quality Mn-deficient hexagonal
M
n
3
Ga
films with C-plane and M-plane orientations were achieved on various single-crystal substrates, and their structural properties were systematically investigated by x-ray diffraction. Magnetization, Hall effect, and neutron diffraction measurements confirm the formation of antiferromagnetic order below
T
N
=
460
–
470
K and reveal its characteristic magnetic behavior. A sizable anomalous Hall effect is observed coexistent with weak net magnetization, consistent with the 120° noncollinear spin structure. The ability to tune both the crystal phase (hexagonal vs tetragonal) and orientation through composition and thermal treatment provides a platform for exploring the intrinsic magnetic and topological properties of
M
n
3
Ga
, with promising implications for antiferromagnetic spintronic applications.
We report the evolution of the antiferromagnetic domain structure of epitaxial
La
0.45
Sr
0.55
MnO
3
(LSMO) ultrathin films with thickness in the range from 5–50 unit cells (uc), using x-ray photoemission electron microscopy (XPEEM). While the 5 uc thick LSMO shows no magnetic contr...
G. Panchal, F. Stramaglia, M. Krummenacher et al.· PHYSICAL REVIEW MATERIALS· 0 citations
Sr
2
IrO
4
(Sr214) and related iridates have emerged as key platforms for fundamental correlated-electron physics and for potential applications such as magnonics. Here, we report the epitaxial growth of high-quality Sr214 thin films using reactive off-axis sputtering. Conventional pulsed-laser de...
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