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Cr polyhedra

We are concerned with discovering new magnetic and electrical properties of new systems. All measurements are performed on single crystals allowing the study of physics of new materials.

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Cr polyhedra

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  1. We are concerned with discovering new magnetic and electrical properties of new systems. All measurements are performed on single crystals allowing the study of physics of new materials. Crystal Growth of Intermetallics with Competing Magnetic InteractionsJulia Y. Chan, Louisiana State University & Agricultural and Mechanical College, DMR 1063735 We report growth, physical properties, and structural studies using synchrotron and neutron diffraction of Ln(Cu,Al,Ga)13. We discovered heavy electron behavior in the Pr analogue. Submitted, 2012 Single crystals of Gd117Co56Sn112, a complex material with a primitive unit cell volume of ~ 6,858 Å3 and ~ 285 atoms per primitive unit cell (1,140 atoms per face-centered cubic unit cell) were successfully grown. The room temperature lattice thermal conductivity of this material is kL = 0.28 W/(m·K) and represents one of the lowest ever reported for a non-glassy or non-ionically conducting bulk solid. Ref. Schmitt, D.C. et al. , “Exceptionally low thermal conductivity in Gd117Co56Sn112 – A phonon glass–electron crystal system”, J. Am. Chem. Soc., 2012, 134, 5965–5973. Ln polyhedra “Adventures in crystal growth: synthesis and structure properties relationships of highly correlated intermetallics” Chem. Mater., 2012, 24, 409 - 420. We report the synthesis, crystal structure, heat capacity, resistivity, and magnetization of RT2Al20 (R = La–Pr, Sm, Yb and T = Ti, V, Cr). We introduce the competing interactions between electrons leading to highly correlated states and introduce the concept of quadrupolar Kondo effect in intermetallics. J. Solid State Chem., In Press, 2012. Cr polyhedra

  2. Solid State and Materials Chemistry Laboratory Julia Y. Chan, Louisiana State University & Agricultural and Mechanical College, DMR 1063735 LaRico LaRico Treadwell (2nd year PhD) giving students (Mentorship Academy) a tour. This is a partnership to expose students to science. Students in my group doing demonstrations (top). Marcus and Jacob doing experiments with elementary school children (bottom). Current Graduate Students: Michael Kangas, Devin Schmitt, Brad Fulfer, Gregory Morrison, LaRico Treadwell, Luis Reyes, and Pilanda McDougald Undergraduates: Marcus Toussaint, Kristen Kendrick, Jacob Alpin, Daniel Garner *Purple indicates underrepresented students.

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