Grant: Research Tools and Instruments - Category 1 (<$150,000)
University of Waterloo
$148,600.00
Magnetic and Magneto-Electrical Studies of Multifunctional Nanostructures
FY 2006-07
Summary
Nanoscience and nanotechnology hold promise to impact the crucial issues of our era, such as renewable energy, improved medical diagnosis and treatment, more efficient information technology, and environmental protection. The realization of the full potential of nanotechnology rests, in part, upon the low-dimensional materials that exhibit multiple targeted and functionally relevant physical properties. This proposal is concerned with the general idea of multi-functionality in reduced dimensions, and with the applications of multifunctional nanosystems for addressing technological problems with economic benefits to Canada. Specifically, I am interested in synthesis, fundamental physical and chemical properties, and applications of rationally designed complex nanocrystalline inorganic alloys and compounds that combine tunable optical, electrical and magnetic properties. These materials are seen as the key elements in the emerging spintronics technology which promises to increase the speeds of data processing and introduce novel functionalities into traditional semiconductor microelectronics. The specific systems of interest include nanocrystalline magnetic ferroelectrics and semiconductors. This work will start by doping ferroelectric and semiconductor nanocrystalline lattices with transition-metal impurities to impart the desired magnetic properties into these materials. Magnetic susceptibility measurements will be performed with the integrated Physical Property Measurement System (PPMS), and the nature of magnetic ordering in multiferroic and magnetic semiconductor nanostructures will be characterized. We will also study mutual interactions between electrical and magnetic properties of multifunctional nanostructures. Magneto-electrical measurements of the magnetic semiconductor nanowires, including Hall effect and magneto-resistance, will quantify the influence of magnetic field on the electrical properties, such as resistance, charge scattering, and carrier mobility and interactions. In broader context, these experiments will be related to the results from a variety of structural, spectroscopic, and magnetic techniques.
Program
Research Tools and Instruments - Category 1 (<$150,000)
Recipient
Location
Ontario, Canada
Recipient Type
Academia
Type
Grant
Source
NSERC's Awards Data
As published
Application id
344701-2007
Name nom
Radovanovic, Pavle
Department département
Chemistry
Organization id
33
Institution établissement
University of Waterloo
Province en
Ontario
Province fr
Ontario
Country en
CANADA
Country fr
CANADA
Fiscal year exercice financier
2006
Competition year année de concours
2007
Award amount
148600
Program id
EQPEQ
Program name en
Research Tools and Instruments - Category 1 (<$150,000)
Program name fr
Outils et instruments de recherche - catégorie 1 (<150 000$)
Group en
Discovery grants programs
Group fr
Programmes de subventions à la découverte
Committee code
26
Committee name en
Anal. & Phys. Chemistry
Committee name fr
Chimie analytique et physique
Area of application code
1208
Area of application group en
Advancement of knowledge
Area of application group fr
Avancement des connaissances
Area of application en
Materials sciences
Area of application fr
Sciences des matériaux
Research subject code
3400
Research subject group en
Physical chemistry
Research subject group fr
Chimie physique
Research subject en
Physical chemistry
Research subject fr
Chimie physique
Partie
1
Nb partie
1
Application title
Magnetic and Magneto-Electrical Studies of Multifunctional Nanostructures
Keyword
NA
Application summary
Nanoscience and nanotechnology hold promise to impact the crucial issues of our era, such as renewable energy, improved medical diagnosis and treatment, more efficient information technology, and environmental protection. The realization of the full potential of nanotechnology rests, in part, upon the low-dimensional materials that exhibit multiple targeted and functionally relevant physical properties. This proposal is concerned with the general idea of multi-functionality in reduced dimensions, and with the applications of multifunctional nanosystems for addressing technological problems with economic benefits to Canada. Specifically, I am interested in synthesis, fundamental physical and chemical properties, and applications of rationally designed complex nanocrystalline inorganic alloys and compounds that combine tunable optical, electrical and magnetic properties. These materials are seen as the key elements in the emerging spintronics technology which promises to increase the speeds of data processing and introduce novel functionalities into traditional semiconductor microelectronics. The specific systems of interest include nanocrystalline magnetic ferroelectrics and semiconductors. This work will start by doping ferroelectric and semiconductor nanocrystalline lattices with transition-metal impurities to impart the desired magnetic properties into these materials. Magnetic susceptibility measurements will be performed with the integrated Physical Property Measurement System (PPMS), and the nature of magnetic ordering in multiferroic and magnetic semiconductor nanostructures will be characterized. We will also study mutual interactions between electrical and magnetic properties of multifunctional nanostructures. Magneto-electrical measurements of the magnetic semiconductor nanowires, including Hall effect and magneto-resistance, will quantify the influence of magnetic field on the electrical properties, such as resistance, charge scattering, and carrier mobility and interactions. In broader context, these experiments will be related to the results from a variety of structural, spectroscopic, and magnetic techniques.
