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Faculty Research

Greenblatt, Martha

Martha Greenblatt 2011 rDistinguished Professor / Board of Governors Professor of Chemistry and Chemical Biology

Research Synopsis: Solid-State Chemistry: correlated electronic low-dimensional transition metal oxides and chalcogenides, superconductors, ionic conductors, catalysts for water oxidation

Phone: (848) 445-3277

E-mail: martha@rutchem.rutgers.edu

 

 

 

 

Research Summary

Solid state inorganic chemistry; synthesis and crystal growth of novel transition metal compounds with quasi-low-dimensional properties including perovskite-related manganates, coboltates and ferrates with large magnetoresistant properties, transition metal (Mo, W, Nb) oxide bronzes, metal cluster chalcogenides, transition metal nitrides, and high temperature superconductors. Properties of compounds are characterized by X-ray diffraction, magnetic susceptibility, electronic conductivity, Seebeck effect, X-ray absorption near-edge spectroscopy, and thermal analysis. Structural-physicochemical property relationships are emphasized. Particular interest in compounds with electronic correlations/instabilities that lead to metal-to- insulator or metal-to-charge density wave, or superconducting transitions. Because of the highly aniosotropic behavior of low-dimensional materials, single crystal growth of bulk materials and films are pursued.

Selected Recent Research Activities

 

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Greenblatt Research Group

Group Photo Kai leaving Oct04 2013 cr
Manrong Li, Mariana Whitaker, Martha Greenblatt, Kai Filsinge, Maria Retuerto (Left to Right)

Recent Publications

  1. Transition Metal Oxides-Magnetoresistance and Halfmetallicity. Tapas Mandal and Martha Greenblatt in “Functional Oxides” Editors: Richard, Walton, Duncan Bruce and Dermot O'Hare, Wiley, 257-293 (2010).
  2. Electronic excitations in the correlated metal BaV0.98Ti0.02S3 studied using resonant inelastic soft x-ray scattering. Learmonth, T.; Glans, P.-A.; Guo, J.-H.; Greenblatt, M.; Smith, K. E. Journal of Physics: Condensed Matter, 22(2), 025504/1-025504/5 (2010).
  3. 2D magnetic order in layered Ni1+/Ni2+ (d9/d8) nickelate, isoelectronic with superconducting cuprates Viktor V. Poltavets, Konstantin A. Lokshin, Andriy H. Nevidomskyy, Mark Croft, Trevor A. Tyson, Joke Hadermann, Gustaaf Van Tendeloo, Takeshi Egami, Gabriel Kotliar, Nicholas ApRoberts-Warren, Adam P. Dioguardi, Nicholas J. Curro, and Martha Greenblatt, Phys. Rev. Lett., 104, 206403/1-4 (2010).
  4. BiMnFe2O6 a Transition Metal Oxide with a Polysynthetically Twinned Hexagonal-Close-Packed Structure. Tao Yang, Artem M. Abakumov, Joke Hadermann, Gustaaf Van Tendeloo, Israel Nowik, Alexander A. Tsirlin, Mark Croft, A. Ignatov, Junliang Sun, Martha Greenblatt , Chemical Science, 1(6), 751-762 (2010).
  5. Ca4MnxFe3-xO8-δCl2: a New n = 3 Ruddlesden-Popper Oxychloride. Tao Yang, Junliang Sun, Mark Croft, Israel Nowik, Alexander Ignatov, Rihong Cong, Martha Greenblatt submitted J. Solid State Chemistry, 183, 1215-1220 (2010).
  6. Cd1-xBix(Cd1+xIn1+x)VO6 (0 ≤ x ≤ 0.14): a New Polar Oxide with Second Harmonic Generation. Tao Yang, Martha Greenblatt, Shiv Halasyamani and Joachim Hemberger Chem. Mater., 22, 4814-4820 (2010).
  7. Structural Investigation of Ca1-δMnxFe2-xO4 (0.4 ≤ x ≤ 2.0): Ca2+ defects and mixed valent Mn3+/4+. Tao Yang, Mark Croft, Alexander Ignatov, Israel Nowik, Rihong Cong, and Martha Greenblatt. Chem. Mater., 22, 5876-5886 (2010).
  8. Water oxidation by λ-MnO2: Catalysis by the cubical Mn4O4 subcluster obtained by delithiation of spinel LiMn2O4. David Robinson, Yong Bok Go, Martha Greenblatt, and G. Charles Dismukes, J. Am. Chem. Soc., 132, 11467-11469 (2010).
  9. Synthesis and properties LaSrMnNbO6 an Ordered Double Perovskites. Tao Yang, Tyche Perkisas, Joke Hadermann, Mark Croft, Alexander Ignatov and Martha Greenblatt, J. Solid State Chem., 183, 2689-2694 (2010).
  10. Synthesis and properties of LaAMnSnO6 (A = Sr, Ba) Double Perovskites. Tao Yang, Joke Hadermann, Gustaaf Van Tendeloo and Martha Greenblatt, J. Mater. Chem., 21(1) 199-205 (2011).
  11. Critical spin dynamics in the antiferromagnet La4Ni3O8 from 139La nuclear magnetic resonance. N. ApRoberts-Warren, A. Dioguardi, V. Poltavets, M. Greenblatt, Peter Klavins, and N. J. Curro. Phys. Rev. B 83(1), 014402/1-014402/4 (2011).
  12. Realization of Tomonaga-Luttinger-liquid physics in the bulk quasi-one-dimensional conductor, Li0.9Mo6O17. N. Wakeham, A. F. Bangura, X. Xu, J.-F. Mercure, N. Wakeham, M. Greenblatt and N. E. Hussey, Nature submitted, 10-2010.

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