Details
| Original language | English |
|---|---|
| Pages (from-to) | S340-S344 |
| Journal | Journal of Alloys and Compounds |
| Volume | 504 |
| Issue number | SUPPL. 1 |
| Early online date | 2 Apr 2010 |
| Publication status | Published - Aug 2010 |
Abstract
The bulk and surface properties of magnetically diluted Cd 0.6Mn0.4S nanocrystals synthesized by solid state route in a planetary mill were studied. XRD, SEM, TEM (HRTEM), low-temperature N 2 sorption, nanoparticle size distribution as well as SQUID magnetometry methods have been applied. The measurements identified the aggregates of small nanocrystals, 5-10 nm in size. The homogeneity of produced particles with well developed specific surface area (15-66 m2 g -1) was documented. The transition from the paramagnetic to the spin-glass-like phase has been observed below ∼40 K. The changes in the magnetic behaviour at low temperatures seem to be correlated with the formation of the new surface area as a consequence of milling. The magnetically diluted Cd0.6Mn0.4S nanocrystals are obtained in the simple synthesis step, making the process attractive for industrial applications.
Keywords
- Cadmium, Manganese, Mechanochemistry, Nanocrystalline sulphide
ASJC Scopus subject areas
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
- Materials Science(all)
- Metals and Alloys
- Materials Science(all)
- Materials Chemistry
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In: Journal of Alloys and Compounds, Vol. 504, No. SUPPL. 1, 08.2010, p. S340-S344.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Properties of magnetically diluted nanocrystals prepared by mechanochemical route
AU - Balá, P.
AU - Škorvánek, I.
AU - Fabián, M.
AU - Kováč, J.
AU - Steinbach, Frank
AU - Feldhoff, Armin
AU - Šepelák, V.
AU - Jiang, J.
AU - Šatka, A.
AU - Kováč, J.
N1 - Funding Information: This investigation was supported by funding from the Slovak Science and Technology Assistance Agency (projects VVCE–0049–07, LPP–0107–09), the Slovak Grant Agency (projects VEGA–2/0035/08, 2/0139/10 and 1/680/09), Center of Excellence of Slovak Academy of Sciences (NANOSMART) and Center of Excellence of Advanced Materials with Nano- and Submicron-Structure (NANOCEXMAT) that is supported by the Operational Program “Research and Development” financed through European Regional Development fund . One of the authors (M. Fabián) thanks the DAAD for supporting his work.
PY - 2010/8
Y1 - 2010/8
N2 - The bulk and surface properties of magnetically diluted Cd 0.6Mn0.4S nanocrystals synthesized by solid state route in a planetary mill were studied. XRD, SEM, TEM (HRTEM), low-temperature N 2 sorption, nanoparticle size distribution as well as SQUID magnetometry methods have been applied. The measurements identified the aggregates of small nanocrystals, 5-10 nm in size. The homogeneity of produced particles with well developed specific surface area (15-66 m2 g -1) was documented. The transition from the paramagnetic to the spin-glass-like phase has been observed below ∼40 K. The changes in the magnetic behaviour at low temperatures seem to be correlated with the formation of the new surface area as a consequence of milling. The magnetically diluted Cd0.6Mn0.4S nanocrystals are obtained in the simple synthesis step, making the process attractive for industrial applications.
AB - The bulk and surface properties of magnetically diluted Cd 0.6Mn0.4S nanocrystals synthesized by solid state route in a planetary mill were studied. XRD, SEM, TEM (HRTEM), low-temperature N 2 sorption, nanoparticle size distribution as well as SQUID magnetometry methods have been applied. The measurements identified the aggregates of small nanocrystals, 5-10 nm in size. The homogeneity of produced particles with well developed specific surface area (15-66 m2 g -1) was documented. The transition from the paramagnetic to the spin-glass-like phase has been observed below ∼40 K. The changes in the magnetic behaviour at low temperatures seem to be correlated with the formation of the new surface area as a consequence of milling. The magnetically diluted Cd0.6Mn0.4S nanocrystals are obtained in the simple synthesis step, making the process attractive for industrial applications.
KW - Cadmium
KW - Manganese
KW - Mechanochemistry
KW - Nanocrystalline sulphide
UR - http://www.scopus.com/inward/record.url?scp=77957553166&partnerID=8YFLogxK
U2 - 10.1016/j.jallcom.2010.03.203
DO - 10.1016/j.jallcom.2010.03.203
M3 - Article
AN - SCOPUS:77957553166
VL - 504
SP - S340-S344
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
IS - SUPPL. 1
ER -