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Condensed Matter > Mesoscale and Nanoscale Physics

Title: High temperature magnetism and microstructure of semiconducting ferromagnetic alloy (GaSb)$_{1-x}$(MnSb)$_{x}$

Abstract: We have studied the properties of relatively thick (about 120 nm) magnetic composite films grown by pulsed laser deposition method using (GaSb)$_{0.59}$(MnSb)$_{0.41}$ eutectic compound as a target for sputtering. For the studied films we have observed ferromagnetism and anomalous Hall effect above the room temperature, it manifests the presence of spin-polarized carriers. Electron microscopy, atomic and magnetic force microscopy results suggests that films under study have homogenous columnar structure in the bulk while MnSb inclusions accumulate near it's surface. This is in good agreement with high mobility values of charge carriers. Based on our data we conclude that room temperature magnetic and magnetotransport properties of the films are defined by MnSb inclusions.
Comments: 7 pages, 6 figures (total of 19 panels)
Subjects: Mesoscale and Nanoscale Physics (cond-mat.mes-hall); Materials Science (cond-mat.mtrl-sci)
Cite as: arXiv:1803.06769 [cond-mat.mes-hall]
  (or arXiv:1803.06769v1 [cond-mat.mes-hall] for this version)

Submission history

From: Leonid Oveshnikov Dr. [view email]
[v1] Mon, 19 Mar 2018 00:56:52 GMT (6229kb,D)