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Title: Organic Polymer Magnets

Organic conjugated polymers are becoming attractive materials in opto-electronic applications ('plastic electronics'). Magnetism is another important property for such organic materials in the future more »generation of electronics. Recently, the first organic conjugated polymer with magnetic properties beyond simple paramagnetism was reported. Its very large magnetic moment, corresponding to an average spin quantum number S {approx} 5000, indicated an effective ferromagnetic (and/or ferrimagnetic) correlation of 10,000 electron spin; the magnetization at saturation was about 10 emu/g (vs. 220 emu/g for iron). Below a temperature of about 10 K, the magnetic behavior was comparable to that of insulating spin glasses and blocked superparamagnets. Because of the chemical reactivity of the carbon-centered radicals, this polymer has to be handled below 170 K in the absence of oxygen. Prospects for organic polymer magnets with chemical stability and magnetic properties at ambient conditions will be discussed.« less
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Title: Organic Polymer Magnets
Authors:
Publication Date: 2002-02-13
OSTI Identifier: 1007460
DOE Contract Number: AC02-07CH11359
Other Number(s): TRN: US1200625
Resource Type: Multimedia
Resource Relation: Conference: Fermilab Colloquia, Fermi National Accelerator Laboratory (FNAL), Batvia, Illinois (United States), presented on February 13, 2002
Research Org: FNAL (Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States))
Sponsoring Org: USDOE Office of Science (SC)
Subject: 36 MATERIALS SCIENCE ; 43 PARTICLE ACCELERATORS ; ELECTRONS ; FERMILAB ; FERMILAB ACCELERATOR ; IRON ; MAGNETIC MOMENTS ; MAGNETIC PROPERTIES ; MAGNETISM ; MAGNETIZATION ; MAGNETS ; ORGANIC POLYMERS ; OXYGEN ; PARAMAGNETISM ; POLYMERS ; QUANTUM NUMBERS ; RADICALS ; SATURATION ; SPIN ; STABILITY
Country of Publication: United States
Language: English
Run Time: 0:59:52
System Entry Date: 2016-01-27