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Room temperature spintronic material - Mn-doped ZnO revisited
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering, Materials Technology.
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2004 (English)In: Journal of Magnetism and Magnetic Materials, ISSN 0304-8853, E-ISSN 1873-4766, Vol. 282, 115-121 p.Article in journal (Refereed) Published
Abstract [en]

We report the first observations of ferromagnetism above room temperature for small atomic percentages of Mn doped in ZnO. In a homogeneous bulk pellet sample sintered at low temperatures (similar to 500degrees C Mn is found to carry an average moment of 0.16 mu(B) per Mn ion. We have obtained room temperature ferromagnetic ordering in samples containing around 2% Mn in the form of powder, bulk pellets and 2-3 mum, thick transparent laser-ablated films. The new capability to fabricate ferromagnetic Mn-doped ZnO semiconductors promises new devices related to spintronic devices as well as magneto-optic components.

Place, publisher, year, edition, pages
2004. Vol. 282, 115-121 p.
Keyword [en]
ferromagnetism, Mn-doped ZnO, spintronics, pulsed laser ablation
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-40337DOI: 10.1016/j.jmmm.2004.04.028ISI: 000224811200029Scopus ID: 2-s2.0-5744222872OAI: oai:DiVA.org:kth-40337DiVA: diva2:441215
Note
QC 20110915. International Symposium on Advanced Magnetic Technologies (ISAMT 2003). Acad Sinica, Inst Phys, Taipei, TAIWAN. NOV 13-16, 2003 Available from: 2011-09-15 Created: 2011-09-14 Last updated: 2017-12-08Bibliographically approved

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