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University of Oslo: Oslo, Oslo, NO

1998-01-01 to present | professor (Department of Chemistry)
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Pavel Karen

Works (50 of 118)

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Page 1 of 3

Defect chemistry and oxygen nonstoichiometry of CeBaFe2O5.5

Journal of Solid State Chemistry
2022 | Journal article
Source: Self-asserted source
Pavel Karen
grade
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Why is Mn charge ordered and AFM coupled in YBaMn2O5?

Journal of Solid State Chemistry
2022-11 | Journal article
Contributors: Pavel Karen
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Structural changes and valence-mixing transition in EuBaCo2O5

Journal of Solid State Chemistry
2022-10 | Journal article
Contributors: Pavel Karen
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Crossref

Thermal evolution of the EuBaCo2O5.5 crystal structure

Journal of Solid State Chemistry
2022-07 | Journal article
Contributors: Pavel Karen
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Oxygen nonstoichiometry in LnBaFe(2)O(5+w) across Ln = Nd, Sm, Gd

Journal of Solid State Chemistry
2021 | Journal article
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Suppression of the nuclear forward scattering signal in GdBaFe2O5 and PrBaFe2O5

Physics Letters A
2021 | Journal article
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Pavel Karen
grade
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Synthesis and equilibrium oxygen nonstoichiometry of PrBaFe2O5+w

Journal of Solid State Chemistry
2021 | Journal article
Contributors: Karen, Pavel
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The Challenge to establish a definition

Chemistry International
2021 | Journal article
Source: Self-asserted source
Pavel Karen
grade
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Solid State Materials Chemistry

Cambridge University Press
2021-04 | Book
Source: Self-asserted source
Pavel Karen

Orbital occupancy evolution across spin- and charge-ordering transitions in YBaFe2O5

Journal of Solid State Chemistry
2017 | Journal article
Contributors: Linden, J.; Lindroos, F.; Karen, P.
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An exceptional series of phase transitions in hydrophobic amino acids with linear side chains

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Comprehensive definition of oxidation state (IUPAC Recommendations 2016)

Pure and Applied Chemistry
2016 | Journal article
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Oxidation State, A Long-Standing Issue!

Angewandte Chemie International Edition
2015 | Journal article
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Twin Displacive Phase Transitions in Amino Acid Quasiracemates

The Journal of Physical Chemistry B
2015 | Journal article
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Complex Magnetic Behavior in the PrSr3(Fe1-xCox)3O10−δ n=3 Ruddlesden-Popper-Type Solid Solution with High Valent Cobalt and Iron

Chemistry of Materials
2014 | Journal article
Source: Self-asserted source
Pavel Karen
grade
Preferred source (of 2)‎

Effect of chloride substitution on the order-disorder transition in NaBH4 and (NaBD4)-B-11

Journal of Alloys and Compounds
2014 | Journal article
Contributors: Olsen, Jorn Eirik; Karen, Pavel; Sorby, Magnus H.; Hauback, Bjorn C.
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Iron orbital occupancies upon valence mixing of charge-ordered (GdBaFeFeO5)-Fe(II)−Fe(III)

Hyperfine Interactions
2014 | Journal article
Source: Self-asserted source
Pavel Karen
grade
Preferred source (of 2)‎

Temperature-induced phase transitions for amino acids with linear side chains

Acta Crystallographica Section A: Foundations and Advances
2014 | Journal article
Contributors: Gorbitz, C.; Karen, P.; Dusek, M.; Petricek, V.
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Toward a comprehensive definition of oxidation state (IUPAC Technical Report)

Pure and Applied Chemistry
2014 | Journal article
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Intricate temperature-induced phase transitions for amino acid quasiracemates

Acta Crystallographica Section A: Foundations and Advances
2013 | Journal article
Contributors: Gorbitz, Carl Henrik; Karen, Pavel; Andersen, Niels Hojmark
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Modeling hyperfine parameters observed from the charge-ordered to valence-mixed state of NdBaFe2O5

Journal of Physics: Condensed Matter
2012 | Journal article
Contributors: Linden, J.; Karen, P.
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NdBaFe2O5+w and steric effect of Nd on valence mixing and ordering of Fe (vol 183, pg 2703, 2010)

Journal of Solid State Chemistry
2011 | Journal article
Contributors: Linden, J.; Karen, P.
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NdBaFe2O5+w and steric effect of Nd on valence mixing and ordering of Fe

Journal of Solid State Chemistry
2010 | Journal article
Contributors: Linden, J.; Karen, P.
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Synthesis and characterization of color variants of nitrogen- and fluorine-substituted TiO2

Journal of Materials Chemistry
2009 | Journal article
Contributors: Seibel, Harry A., II; Karen, Pavel; Wagner, Timothy R.; Woodward, Patrick M.
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Electronic, magnetic, and structural properties of Sr2MnRuO6 and LaSrMnRuO6 double perovskites

Journal of the American Ceramic Society
2008 | Journal article
Contributors: Woodward, Patrick M.; Goldberger, Joshua; Stoltzfus, Matthew W.; Eng, Hank W.; Ricciardo, Rebecca A.; Santhosh, Padmam N.; Karen, Pavel; Moodenbaugh, Arnold R.
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Most pressurized elements aren’t simple cubic

Physics Today
2008 | Journal article
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Damping of antiferromagnetic spin waves by valence fluctuations in the double layer perovskite YBaFe2O5

Physical Review Letters
2007 | Journal article
Contributors: Chang, S.; Karen, P.; Hehlen, M. P.; Trouw, F. R.; McQueeney, R. J.
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EuBaFe2O5+w: Valence mixing and charge ordering are two separate cooperative phenomena

Journal of Solid State Chemistry
2007 | Journal article
Contributors: Karen, P.; Gustafsson, K.; Linden, J.
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EuBaFe2O5+w: Valence mixing and charge ordering are two separate cooperative phenomena (vol 180, pg 148, 2007)

Journal of Solid State Chemistry
2007 | Journal article
Contributors: Karen, P.; Gustafsson, K.; Linden, J.
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EuBaFe2O5: Extent of charge ordering by Mossbauer spectroscopy and high-intensity high-resolution powder diffraction

Journal of Solid State Chemistry
2007 | Journal article
Contributors: Karen, P.; Gustafsson, K.; Linden, J.
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Electronic, magnetic and structural properties of A(2)VMoO(6) perovskites (A = Ca, Sr)

Journal of Solid State Chemistry
2006 | Journal article
Contributors: Karen, P.; Moodenbaugh, A. R.; Goldberger, J.; Santhosh, P. N.; Woodward, P. M.
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Nonstoichiometry in oxides and its control

Journal of Solid State Chemistry
2006 | Journal article
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Transport and magnetotransport properties across the two-step Verwey transition in BaGdFe2O5+w

Physical Review B
2006 | Journal article
Contributors: Linden, J; Karen, P; Nakamura, J; Karppinen, M; Yamauchi, H
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Crystal structure of stoichiometric YBa2Fe3O8

Inorganic Chemistry
2005 | Journal article
Source: Self-asserted source
Pavel Karen
grade
Preferred source (of 2)‎

Verwey Transition in a Perovskite-Type Structure

Acta Crystallographica Section A: Foundations and Advances
2005 | Journal article
Contributors: Karen, Pavel
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Chemistry and thermodynamics of the twin charge-ordering transitions in RBaFe2O5+w series

Journal of Solid State Chemistry
2004 | Journal article
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Exploring the Verwey-type transition in GdBaFe2O5+w using Fe-57 Mossbauer spectroscopy

Hyperfine Interactions
2004 | Journal article
Contributors: Linden, J; Karen, P; Yamauchi, H; Karppinen, M
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Isovalent-substitution effect on the Verwey-type transition in the A-site-ordered double perovskite (Ba,Sr)RFe2O5

Physical Review B
2004 | Journal article
Contributors: Nakamura, J; Karppinen, M; Karen, P; Linden, J; Yamauchi, H
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Pressure effects on the charge-ordering transition of BaYCo2O5.0

Physical Review B
2004 | Journal article
Contributors: Moritomo, Y; Hanawa, M; Xu, S; Ishikawa, H; Ohishi, Y; Kato, K; Honma, T; Karen, P; Karppinen, M; Yamauchi, H
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Valence mixing, separation and ordering in double-cell perovskite GdBaFe2O5+w

Journal of Magnetism and Magnetic Materials
2004 | Journal article
Contributors: Linden, J.; Karen, P.; Yamauchi, H.; Karppinen, M.
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YBaMnCoO5; neither valence mixed nor charge ordered

Solid State Sciences
2004 | Journal article
Contributors: Pavel Karen; Emmanuelle Suard; François Fauth; Patrick M. Woodward
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Effects of oxygen nonstoichiometry and of its distribution on Verwey-type transitions and structure of

Journal of Solid State Chemistry
2003 | Journal article
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Mixed valence in YBaFe2O5

Inorganic Chemistry
2003 | Journal article
Source: Self-asserted source
Pavel Karen
grade
Preferred source (of 2)‎

Neutron powder diffraction study of nuclear and magnetic structures of oxidized and reduced YBa2Fe3O8+w

Journal of Solid State Chemistry
2003 | Journal article
Contributors: Karen, P; Kjekshus, A; Huang, Q; Karen, VL; Lynn, JW; Rosov, N; Natali Sora, I; Santoro, A
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Structural tuning of charge, orbital, and spin ordering in double-cell perovskite series between NdBaFe2O5 and HoBaFe2O5

Journal of the American Chemical Society
2003 | Journal article
Source: Self-asserted source
Pavel Karen
grade
Preferred source (of 2)‎

Substitution of Co3+ in YBa2Fe3O8

Journal of Solid State Chemistry
2003 | Journal article
Contributors: Huang, QZ; Karen, VL; Santoro, A; Kjekshus, A; Linden, J; Pietari, T; Karen, P
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CHARGE ORDERING THAT ONLY SUCCEEDS AFTER NATURES SECOND ATTEMPT

Acta Crystallographica Section A: Foundations and Advances
2002 | Conference abstract
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Pavel Karen
grade
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Charge- and spin-order in mixed-valence iron and cobalt double perovskites

Abstracts of Papers of the American Chemical Society
2002 | Conference abstract
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Pavel Karen
grade
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EXPLORING THE MAGNETIC, ELECTRICAL AND STRUCTURAL PROPERTIES OF TRANSITION-METAL OXIDE PEROVSKITES

Acta Crystallographica Section A: Foundations and Advances
2002 | Conference abstract
Source: Self-asserted source
Pavel Karen
grade
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Verwey transition under oxygen loading in RBaFe2O5+w (R = Nd and Sm)

Journal of Solid State Chemistry
2002 | Journal article
Contributors: Karen, P; Woodward, PM; Santhosh, PN; Vogt, T; Stephens, PW; Pagola, S
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