Halasyamani Research Group

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Recent Publications

  • Zhang, W. and Halasyamani, P.S., Top-seeded solution crystal growth of Noncentrosymmetric and Polar Zn2TeMoO7 (ZTM), J. Solid State Chem., In Press, 2015.
  • Tran, T.T., He, J., Rondinelli, J.M., and Halasyamani, P.S., RbMgCO3F - A New Deep-Ultraviolet Nonlinear Optical Material, J. Am. Chem. Soc., 137, 10504-10507, 2015.
  • Gerke, B., Tran, T. T., Pottgen, R., and Halasyamani, P.S., 119Sn Mossbauer Spectroscopy of Solveothermally Synthesized Fluorides ASnF3 (A = Na, K, Rb, Cs), Z. Naturforsch., In Press, 2015.
  • Latshaw, A.M., Wilkins, B.O., Hughey, K.D., Yeon, J., Williams, D.E., Tran, T.T., Halasyamani, P.S., and zur Loye, H.-C., A5RE4X[TO4]4 Crystal Growth and Photoluminescene. Part 2. Fluoride Flux Synthesis of Sodium and Potassium Rare Earth Silicate Oxyfluorides, CrystEngComm, 17, 4654-4661, 2015.
  • Kim, S.W., Zhang, R., Halasyamani, P.S., and Hayward, M.A., K4Fe3F12: An Fe2+/Fe3+ charge-ordered, ferrimagnetic fluoride with a cation-deficient, layered perovskite structure, Inorg. Chem., 54, 6647-6652, 2015.
  • Morrison, G., Smith, M.D., Tran, T.T., Halasyamani, P.S., and zur Loye, H.-C., Synthesis and Structure of a New Pentanary Uranium (VI) Silicate: K4CaUSi4O14, CrystEngComm. 17, 4218-4224, 2015.
  • Yu, H., Wu, H., Jing, Q., Yang, Z. Halasyamani, P. S., and Pan, S., Polar Polymorphism: α-, β-, and γ- Pb2Ba4Zn4B14O31 - Synthesis, Characterization, and Nonlinear Optical Properties, Chem. Mater., 27, 4779-4788, 2015.
  • Cortese, A., Wilkins, B., Smith, M., Yeon, J., Morrison, G., Tran, T.T., Halasyamani, P.S., and zur Loye, H.-C., Crystal Growth of Four Oxovanadium(IV) Tartrates Prepared via a Mild Two Step Hydrothermal Method:  Observation of Spin Dimer Behavior and Second Harmonic Generation, Inorg. Chem., 54, 4011-4020, 2015.
  • Kim, Y.H, Tran, T.T., Halasyamani, P.S., and Ok, K.M., Macroscopic polarity control with alkali metal cation size and coordination environment in a series of tin iodates, Inorg. Chem. Frontiers, 2, 361-368, 2015.
  • Mandal, P., Manjob-Sanz, A., Corkett, A.J., Comyn, T.P., Dawson, K., Stevenson, T., Bennett, J., Henrichs, L.F., Bell, A.J., Nishibori, E., Takata, M., Zanella, M., Dolgos, M.R., Adem, U., Wan, X., Pitcher, M.J., Romani, S., Tran, T.T., Halasyamani, P.S., Claridge, J.B., and Rosseinsky, M.J., Morphotropic Phase Boundary in the Pb-Free (1-x)BiTi3/8Fe2/8Mg3/8O3 - xCaTiO3 System: Tetragonal Polarization and Enhanced Electromechanical Properties, Adv. Mater., 27, 2883-2889, 2015.
  • Donakowski, M.D., Gautier, R., Lu, H., Tran, T.T., Cantwell, J., Halasyamani, P.S., and Poeppelmeier, K.R., Synthesis of Two Vanadium Oxide-Fluoride Materials that Differ in Phase Matchability, Inorg. Chem., 54, 765-772, 2015.
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Research in the Halasyamani group involves the synthesis, characterization, crystal growth, and structure-property relationships in new functional inorganic solid-state materials.

“New materials are the lifeblood of solid state research and device technology. Contrary to what many believe, new materials are not usually discovered by device engineers, solid state theorists, or research managers; they are mostly discovered by chemists. Some physical phenomena are only exhibited in single crystals and can only be studied and understood in single crystals. Thus the synthetic chemist - especially if he develops a proficiency in relating structure, bonding and other chemo-physical considerations to properties of interest - is in a key position in determining the direction and success of solid state research and - ultimately - technology.” (Dr. Robert Laudise - Bell Labs).

Current research projects involve…

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