Roberto Köferstein

Martin Luther Universitat Halle Wittenberg

Universitätsplatz 10

Halle (Saale), Saxony-Anhalt 06108

Germany

SCHOLARLY PAPERS

28

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71

CITATIONS
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7

Scholarly Papers (28)

1.

BaGeo3 as Sintering Additive for BaTiO3–MgFe2O4 Composite Ceramics

RSC Adv., 2015, 5, 71491
Number of pages: 9 Posted: 22 Aug 2017
Roberto Köferstein and S. G. Ebbinghaus
Martin Luther Universitat Halle Wittenberg and Independent
Downloads 7 (593,432)
Citation 1

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composite, ceramic, BaTiO3, MgFe2O4, magnetism, permittivity, sintering, densification, ferrimagnetism, ferromagnetism, superparamagnetism, nano particle, DTA

2.

Synthesis and Characterization of a Nano-Scaled Barium Cerate Perovskite Powder Using Starch As Polymerization Agent

Solid State Ionics 203 (2011) 52–56
Number of pages: 17 Posted: 23 Jan 2018
Roberto Köferstein, Dietrich Hesse and Stefan Ebbinghaus
Martin Luther Universitat Halle Wittenberg, Max Planck Institute of Microstructure Physics and Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry
Downloads 6 (599,901)

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BaCeO3, perovskites, nano, sintering, starch

3.

Hysteretic Magnetoelectric Behavior of CoFe2O4–BaTiO3 Composites Prepared by Reductive Sintering and Reoxidation

J.Mater. Chem. C, 2016, 4, 4792
Number of pages: 8 Posted: 29 Aug 2017
Till Walther, Ulrich Straube, Roberto Köferstein and Stefan Ebbinghaus
Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry, Martin Luther University of Halle-Wittenberg - Institute of Physics, Martin Luther Universitat Halle Wittenberg and Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry
Downloads 6 (599,901)

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composite, permittivity, BaTiO3, ferrite, magnetoelectric, multiferroic, magnetization, CoFe2O4

4.

Investigations of nano-crystalline Sr0.5Ba0.5Nb2O6 and Bulk Ceramics Synthesized by a Polymerization Method Using PEG400

Number of pages: 33 Posted: 28 Jun 2019
Roberto Köferstein, Florian Oehler and Stefan Ebbinghaus
Martin Luther Universitat Halle Wittenberg, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry and Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry
Downloads 4 (613,338)

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niobate, permittivity, nano-particle, band gap, relaxor, PEG, thermal expansion, Sr0.5Ba0.5Nb2O6, SrBaNb4O12

5.

Nano-Sized BaSnO3 Powder Via a Precursor Route. Comparative Study of Sintering Behaviour and Mechanism of Fine and Coarse-Grained Powders

Journal of the European Ceramic Society 29 (2009) 2317–2324 (doi:10.1016/j.jeurceramsoc.2009.01.026)
Number of pages: 24 Posted: 24 Jul 2018
Roberto Köferstein, Lothar Jäger, Mandy Zenkner and Stefan Ebbinghaus
Martin Luther Universitat Halle Wittenberg, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry and Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry
Downloads 4 (613,338)
Citation 1

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6.

Phase Transition and Dielectric Properties of BaTiO3 Ceramics Containing 10 Mol% BGeO3

Materials Chemistry and Physics 119 (2010) 118–122 (doi:10.1016/j.matchemphys.2009.08.026)
Number of pages: 16 Posted: 24 Jul 2018
Roberto Köferstein, Lothar Jäger, Mandy Zenkner and Stefan Ebbinghaus
Martin Luther Universitat Halle Wittenberg, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry and Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry
Downloads 4 (613,338)

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7.

Semiconducting Properties of Ge-doped BaSnO3 Ceramic

Journal of Alloys and Compounds 506 (2010) 678–682
Number of pages: 1 Posted: 17 Jan 2019
Roberto Köferstein and Fahrettin Yakuphanoglu
Martin Luther Universitat Halle Wittenberg and affiliation not provided to SSRN
Downloads 3 (621,266)

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BaSnO3, BaGeO3, perovskite, band gap, semiconductor, sintering, conductivity

8.

Magnetic and Optical Investigations on LaFeO3 Powders with Different Particle Sizes and Corresponding Ceramics

Number of pages: 20 Posted: 17 Jan 2019
Roberto Köferstein, Lothar Jäger and Stefan Ebbinghaus
Martin Luther Universitat Halle Wittenberg, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry and Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry
Downloads 3 (621,266)

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LaFeO3, perovskite, ferrite, magnetism, antiferromagnetism, nano, ceramic, sintering, band gap, exchange bias

9.

Synthesis and Crystal Structure of Two Cu(II)-Benzene-1,2,4,5- Tetracarboxylates With Three-Dimensional Open Frameworks

ZAAC, Volume 640, Issue2, February 2014, Pages 310-316
Number of pages: 9 Posted: 27 Aug 2018
Roberto Köferstein and Christian Robl
Martin Luther Universitat Halle Wittenberg and Friedrich-Schiller-Universität Jena - Institute of Inorganic and Analytical Chemistry
Downloads 3 (621,266)

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10.

Synthesis, Crystal Structure and Hydrogen Bonding of μ-Hydroxo-μ-peroxo-bis[bis(ethylenediamine)cobalt(III)] squarate

Z. Anorg. Allg. Chem. 2016, 642, (7), 560–565
Number of pages: 12 Posted: 24 Jul 2018
Roberto Köferstein and Christian Robl
Martin Luther Universitat Halle Wittenberg and Friedrich-Schiller-Universität Jena - Institute of Inorganic and Analytical Chemistry
Downloads 3 (621,266)

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Synthesis, Phase Evolution and Properties of Phase-pure Nanocrystalline BiFeO3 Prepared by a Starch-based Combustion Method

Journal of Alloys and Compounds 590 (2014) 324–330
Number of pages: 28 Posted: 17 Jan 2019
Roberto Köferstein
Martin Luther Universitat Halle Wittenberg
Downloads 2 (661,313)
Citation 1

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BiFeO3, ferrite, perovskite, antiferromegnetsm, magnetism, nano, strach, decompostion, sintering, ceramic, exchange bias, fuel, oxidizer, Johnson–Mehl–Avrami– Kolmogorov, JMAK, calcination

Synthesis, Phase Evolution and Properties of Phase-Pure Nanocrystalline BiFeO3 Prepared by a Starch-Based Combustion Method

Journal of Alloys and Compounds 590 (2014) 324–330
Number of pages: 28 Posted: 24 Jul 2018
Roberto Köferstein
Martin Luther Universitat Halle Wittenberg
Downloads 1 (675,851)

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12.

Barium Germanium 1,2-Ethanediolato Complex As Precursor for Barium Metagermanate

Thermochimica Acta 457 (2007) 55–63
Number of pages: 20 Posted: 23 Jan 2018
Roberto Köferstein, Lothar Jäger, Mandy Zenkner and Hans-Peter Abicht
Martin Luther Universitat Halle Wittenberg, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry and Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry
Downloads 3 (621,266)

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BaGeO3, phase transition, dilatometry, shrinkage, expansion, decomposition, complexes

13.

Magnetic, Optical, Dielectric, and Sintering Properties Ofnano-Crystalline BaFe0.5Nb0.5O3 Synthesized by Apolymerization Method

J. Mater. Sci. 53 (2018) 1024–1034
Number of pages: 29 Posted: 30 Jan 2019
Roberto Köferstein, Florian Oehler and Stefan Ebbinghaus
Martin Luther Universitat Halle Wittenberg, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry and Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry
Downloads 2 (631,171)

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Perovskite, BaFe0.5Nb0.5O3, Nano, Decomposition, Permittivity, Magnetism, Band-Gap, Sintering, Ceramic, Densification

14.

A Novel Three-Dimensional Copper(II) 1,2-Ethylenediphosphonate Framework with Channel-like Voids

Zeitschrift für anorganische und allgemeine Chemie 642(19):1126, 2016
Number of pages: 9 Posted: 25 Jul 2018
Roberto Köferstein, Michael Arnold and Christian Robl
Martin Luther Universitat Halle Wittenberg, Friedrich-Schiller-Universität Jena - Institute of Inorganic and Analytical Chemistry and Friedrich-Schiller-Universität Jena - Institute of Inorganic and Analytical Chemistry
Downloads 2 (631,171)

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15.

Synthesis and Sintering of Nano-Sized BaSnO3 Powders Containing BaGeO3

Journal of Material Science (2010) 45:3784–3790 (DOI 10.1007/s10853-010-4432-5)
Number of pages: 19 Posted: 24 Jul 2018
Martin Luther Universitat Halle Wittenberg, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry, University of Augsburg - Chair of Solid State Chemistry and Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry
Downloads 2 (631,171)

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16.

The Influence of the Additive BaGeO3 on BaSnO3 Ceramics.

Journal of the European Ceramic Society 30 (2010) 1419–1425
Number of pages: 23 Posted: 24 Jul 2018
Martin Luther Universitat Halle Wittenberg, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry and Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry
Downloads 2 (631,171)

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17.

Preparation and Characterization of Nano-Sized Magnesium Ferrite Powders By a Starch-Gel Process and Corresponding Ceramics

Journal of Material Science (2013) 48:6509–6518
Number of pages: 29 Posted: 10 Jul 2018
Roberto Köferstein, Till Walther, Dietrich Hesse and Stefan Ebbinghaus
Martin Luther Universitat Halle Wittenberg, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry, Max Planck Institute of Microstructure Physics and Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry
Downloads 2 (631,171)
Citation 1

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18.

Sintering of a Fine-Grained BaCeO3 Powder Obtained from a Co-Precipitation Method

Journal of Material Science (2010) 45:6521–6527
Number of pages: 21 Posted: 23 Jan 2018
Roberto Köferstein, Lothar Jäger and Stefan Ebbinghaus
Martin Luther Universitat Halle Wittenberg, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry and Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry
Downloads 2 (631,171)

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BaCeO3, sintering, phase transition

19.

Investigations of BaFe0.5Nb0.5O3 Nano Powders Prepared by a Low Temperature Aqueous Synthesis and Resulting Ceramics

Journal of the European Ceramic Society 37 (2017) 1509-1516.
Number of pages: 40 Posted: 20 Dec 2017
Roberto Köferstein and Stefan Ebbinghaus
Martin Luther Universitat Halle Wittenberg and Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry
Downloads 2 (631,171)

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perovskite, hydrothermal, nanparticle, ceramics, band-gap, thermal expansion coefficient, permittivty, magnetism

20.

Synthesis, Crystal Structure, Hydrogen Bonding and Thermal Behaviour of a Three-Dimensional Cu(II)-Benzene-1,2,4,5-Tetracarboxylate Templated by 1,9-Diaminononane

Number of pages: 9 Posted: 25 Jul 2018
Roberto Köferstein and Christian Robl
Martin Luther Universitat Halle Wittenberg and Friedrich-Schiller-Universität Jena - Institute of Inorganic and Analytical Chemistry
Downloads 1 (643,830)

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21.

A Novel One-Dimensional Copper Mellitate Complex Featured by {Cu(H2O)2(Urea) C6(COO)4(COOH)2]}N2n- Polyanions

Z. Anorg. Allg. Chem. 641 (2015) 1886-1891
Number of pages: 10 Posted: 24 Jul 2018
Roberto Köferstein and Christian Robl
Martin Luther Universitat Halle Wittenberg and Friedrich-Schiller-Universität Jena - Institute of Inorganic and Analytical Chemistry
Downloads 1 (643,830)

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22.

Crystallite Growth, Phase Transition, Magnetic Properties, and Sintering Behaviour of Nano-CuFe2O4 Powders Prepared by a Combustion-like Process

Journal of Solid State Chemistry 213 (2014) 57–64
Number of pages: 27 Posted: 24 Jul 2018
Roberto Köferstein, Till Walther, Dietrich Hesse and Stefan Ebbinghaus
Martin Luther Universitat Halle Wittenberg, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry, Max Planck Institute of Microstructure Physics and Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry
Downloads 1 (643,830)
Citation 1

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23.

Fine-Grained BaTiO3-MgFe2O4 Composites Prepared by a Pechini-Like Process

Journal of Alloys and Compounds 638 (2015) 141-147.
Number of pages: 30 Posted: 24 Jul 2018
Roberto Köferstein, Till Walther, Dietrich Hesse and Stefan Ebbinghaus
Martin Luther Universitat Halle Wittenberg, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry, Max Planck Institute of Microstructure Physics and Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry
Downloads 1 (643,830)

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24.

Phase Evolution of a Barium Tin 1,2-Ethanediolato Complex to Barium Stannate During Thermal Decomposition

Thermochimica Acta 441 (2006) 176–183
Number of pages: 26 Posted: 24 Jul 2018
Martin Luther Universitat Halle Wittenberg, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry, Max Planck Institute of Microstructure Physics and Max Planck Institute of Microstructure Physics
Downloads 1 (643,830)
Citation 1

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25.

Shrinkage Mechanism and Phase Evolution of Fine-Grain BaTiO3 Powder Compacts Containing 10 Mol% BeO3 Prepared Via a Precursor Route

Materials Chemistry and Physics 112 (2008) 531–535
Number of pages: 17 Posted: 24 Jul 2018
Martin Luther Universitat Halle Wittenberg, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry and Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry
Downloads 1 (643,830)
Citation 2

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26.

Preparation and Sintering Behaviour of a Fine Grain BaTiO3 Powder Containing 10 mol% BGeO3

Journal of Material Science (2008) 43:832–838
Number of pages: 21 Posted: 24 Jul 2018
Roberto Köferstein, Lothar Jäger, Mandy Zenkner and Hans-Peter Abicht
Martin Luther Universitat Halle Wittenberg, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry and Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry
Downloads 1 (643,830)

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27.

Synthesis and Characterization of Nano-LaFeO3 Powders by a Softchemistry Method and Corresponding Ceramics

Solid State Ionics 231 (2013) 43–48 (Doi: 10.1016/j.ssi.2012.10.017)
Number of pages: 24 Posted: 24 Jul 2018
Roberto Köferstein and Stefan Ebbinghaus
Martin Luther Universitat Halle Wittenberg and Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry
Downloads 1 (643,830)

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28.

Synthesis and Characterization of Nanoscaled Ba(Ti1−x−ySnxGey)O3 Powders and Corresponding Ceramics

Posted: 17 Jan 2019
Mandy Zenkner, Lothar Jäger, Roberto Köferstein and Hans-Peter Abicht
Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry, Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry, Martin Luther Universitat Halle Wittenberg and Martin Luther University of Halle-Wittenberg - Institute of Chemistry, Inorganic Chemistry

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BaTiO3, BaSnO3, BaGeO3, perovskite, germanate, permittivity, sintering, nano, sol-gel, ferroelectric, phase transition, diffuse