Low‐temperature physical properties of d‐ and f‐electron transition‐metal intermetallics are often dominated by strong interactions among the conduction electrons. New developments started with considerations of the stability of magnetic moments in a metallic matrix, first as impurities and later as residing on regular lattice sites of compounds. A special case are compounds where these interactions provoke a transfer of magnetic degrees of freedom to the subsystem of the conduction electrons, resulting in extreme enhancements of the effective mass of these charge carriers and to quantum‐critical behaviour.. Of particular interest is the onset of superconductivity in this type of compounds, with strong indications of unconventional superconducting phases in the vicinity of magnetic order. Evidence for unconventional superconductivity is also obtained from studies of systems close to a metal‐insulator transition. Examples are oxide materials, most spectacularly the Cu oxides exhibiting high‐ T c superconductivity. Strong correlations are also met in spin systems of insulating compounds. They are particularly effective in materials with low‐dimensional structure units, such as chains, ladders and planes. At low temperatures such systems, mostly d‐transition metal oxides of different varieties, are often dominated by quantum effects and quantum criticality and provide a rich playground for studies of related phenomena. You may want to print this page and refer to it as a style sample before you begin working on your paper.
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Strong Correlations in Solids: A Survey of Experimental Facts
Ott, H. R.
Follow AIP Conference Proceedings
, Volume 1419 (1)
American Institute of Physics – Dec 13, 2011
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