Document Detail


Magnetism in undoped ZnS nanotetrapods.
MedLine Citation:
PMID:  23299077     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The magnetism of undoped ZnS nanotetrapods, synthesized by a solvothermal method, has been investigated by magnetization measurements and first principle numerical calculations. The background magnetic impurity concentrations of Fe, Co and Ni were determined at ppm level by inductively coupled plasma mass spectrometry (ICP-MS). Hysteresis loops of weak ferromagnetism were observed, attributable to the magnetic impurities. However, the total magnetic moments analyzed from the paramagnetism are far beyond the explanations from the presence of these magnetic impurities, by about two orders of magnitude larger. It implies a different origin of the magnetic moments. Electron microscopy analysis reveals that there are defects in the sample. Numerical simulations indicate that the excessive magnetic moments might arise from the local band structure of polarized electrons associated with the defects of cation deficiency. This study elaborates on the understanding of magnetic properties in the non-magnetic II-VI semiconductor nanomaterials.
Authors:
Aixian Shan; Wei Liu; Rongming Wang; Chinping Chen
Related Documents :
24554127 - The oblique plane deformity in slipped capital femoral epiphysis.
24555627 - Femoral and tibial torsion measurement in children and adolescents: comparison of 3d mo...
24076497 - A comparative numerical study of rotating and stationary rf coils in terms of flip angl...
21143547 - Evaluation of cerebral hemorrhage volume using transcranial color-coded duplex sonography.
20133067 - Predicting post-external beam radiation therapy psa relapse of prostate cancer using pr...
22074867 - Imaging findings of neurogenic tumours in the head and neck region.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-9
Journal Detail:
Title:  Physical chemistry chemical physics : PCCP     Volume:  -     ISSN:  1463-9084     ISO Abbreviation:  Phys Chem Chem Phys     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100888160     Medline TA:  Phys Chem Chem Phys     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Key Laboratory of Micro-nano Measurement-Manipulation and Physics (Ministry of Education), Department of Physics, Beijing University of Aeronautics and Astronautics, Beijing 100191, P.R. China.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Areteo di Cappadocia. Considerazioni sulla difterite.
Next Document:  Inhibitory effect of apolipoprotein A-I on matrix metalloproteinase-2 expression in vivo and in vitr...