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Magnetic Mn-Doped Ge Nanostructures
Author
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-25, 25 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-05-07
Country of Publication
Egypt
No. of Pages
25
Main Subjects
Abstract EN
With the seemly limit of scaling on CMOS microelectronics fast approaching, spintronics has received enormous attention as it promises next-generation nanometric magnetoelectronic devices; particularly, the electric field control of ferromagnetic transition in dilute magnetic semiconductor (DMS) systems offers the magnetoelectronic devices a potential for low power consumption and low variability.
Special attention has been given to technologically important group IV semiconductor based DMSs, with a prominent position for Mn doped Ge.
In this paper, we will first review the current theoretical understanding on the ferromagnetism in MnxGe1−x DMS, pointing out the possible physics models underlying the complicated ferromagnetic behavior of MnxGe1−x.
Then we carry out detailed analysis of MnxGe1−x thin films and nanostructures grown by molecular beam epitaxy.
We show that with zero and one dimension quantum structures, superior magnetic properties of MnxGe1−x compared with bulk films can be obtained.
More importantly, with MnxGe1−x nanostructures, such as quantum dots, we demonstrate a field controlled ferromagnetism up to 100 K.
Finally we provide a prospective of the future development of ferromagnetic field effect transistors and magnetic tunneling junctions/memories using dilute and metallic MnxGe1−x dots, respectively.
We also point out the bottleneck problems in these fields and rendering possible solutions to realize practical spintronic devices.
American Psychological Association (APA)
Xiu, Faxian. 2012. Magnetic Mn-Doped Ge Nanostructures. ISRN Condensed Matter Physics،Vol. 2012, no. 2012, pp.1-25.
https://search.emarefa.net/detail/BIM-453904
Modern Language Association (MLA)
Xiu, Faxian. Magnetic Mn-Doped Ge Nanostructures. ISRN Condensed Matter Physics No. 2012 (2012), pp.1-25.
https://search.emarefa.net/detail/BIM-453904
American Medical Association (AMA)
Xiu, Faxian. Magnetic Mn-Doped Ge Nanostructures. ISRN Condensed Matter Physics. 2012. Vol. 2012, no. 2012, pp.1-25.
https://search.emarefa.net/detail/BIM-453904
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-453904