Výsledky vyhledávání - "Peter Schmid-Beurmann"

Commentary on Constraints on the Equations of State of stiff anisotropic minerals: Rutile, and the implications for rutile elastic barometry [Miner. Mag. 83 (2019) pp. 339-347]

Autor: Ross J. Angel, Matteo Alvaro, Peter Schmid-Beurmann, Herbert Kroll

Publikováno v: Mineralogical magazine (Online) 84 (2020): 355–357. doi:10.1180/mgm.2020.14
info:cnr-pdr/source/autori:Angel R.J.[1], Alvaro M.[2], Schmid-Beurmann P.[3], Kroll H.[3]/titolo:Commentary on Constraints on the Equations of State of stiff anisotropic minerals: Rutile, and the implications for rutile elastic barometry [Miner. Mag. 83 (2019) pp. 339-347]/doi:10.1180%2Fmgm.2020.14/rivista:Mineralogical magazine (Online)/anno:2020/pagina_da:355/pagina_a:357/intervallo_pagine:355–357/volume:84

The conclusion of Zaffiroet al.(2019; Constraints on the Equations of State of stiff anisotropic minerals: rutile, and the implications for rutile elastic barometry.Mineralogical Magazine,83, 339–347) that the Mie–Grüneisen–Debye (MGD) Equatio

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Enhanced magnetic ordering transition temperature and broad dielectric relaxation in iron incorporated intergrown pyrochlore-spinel crystals

Autor: Peter Schmid-Beurmann, Raja Altaf U Rahman, Ramaswamy Murugan

Publikováno v: Journal of Alloys and Compounds. 763:409-420

Iron (Fe) incorporated intergrown pyrochlore-spinel phase of nominal compositions BiNbFe0.1Mn1.9O7-δ (BNFMO), BiTaFe0.1Mn1.9O7-δ (BTFMO) and BiSbFe0.1Mn1.9O7-δ (BSFMO) were synthesized by solid state reaction. The replacement of 5% iron (Fe) for J

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https://doi.org/10.1016/j.jallcom.2018.05.258

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Northwest Africa 11024—A heated and dehydrated unique carbonaceous (CM) chondrite

Autor: Dennis Harries, Jérôme Gattacceca, Jean-Alix Barrat, Peter Schmid-Beurmann, Stephan Kimpel, R. Visser, Andreas Pack, S. Ebert, Sarah Lentfort, Addi Bischoff

Publikováno v: Meteoritics and Planetary Science
Meteoritics and Planetary Science, Wiley, 2019, 54 (2), pp.328-356. ⟨10.1111/maps.13212⟩
Meteoritics and Planetary Science, Wiley, 2018, 54 (2), pp.328-356. ⟨10.1111/maps.13212⟩
Meteoritics and Planetary Science, 2019, 54 (2), pp.328-356. ⟨10.1111/maps.13212⟩

International audience; Based on the high abundance of fine-grained material and its dark appearance, NWA 11024 was recognized as a CM chondrite, which is also confirmed by oxygen isotope measurements. But contrary to known CM chondrites, the typical

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https://hal.archives-ouvertes.fr/hal-02365228

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CoMg olivine: cation partitioning, thermal expansion and structural variation studied by in situ neutron and synchrotron powder diffraction

Autor: Pitua Sutanto, Alexander Sell, Michael Knapp, Armin Kirfel, Peter Schmid-Beurmann, Herbert Kroll, Winfried Kockelmann, Julia Büscher

Publikováno v: European Journal of Mineralogy. 28:703-719

The crystal structure of CoMg olivine has been investigated by in situ neutron and synchrotron X-ray powder diffraction at temperatures between 23°C and 1050°C. The olivine sample was prepared at 1450°C by solid-state reaction. During quench, the

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https://doi.org/10.1127/ejm/2016/0028-2554

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Triphylite–Sarcopside Miscibility Gap In the FeO–MnO–Li2O–P2O5–H2O System: Experimental Investigation and Thermometric Application To Granitic Pegmatites

Autor: Luisa Ottolini, Peter Schmid-Beurmann, Encarnación Roda-Robles, Frédéric Hatert, Fabrice Dal Bo, Maxime Baijot

Publikováno v: The Canadian Mineralogist. 54:827-845

In order to assess the stability of the primary triphylite + sarcopside assemblage, we performed hydrothermal experiments between 400 and 700 °C (Ni/NiO oxygen fugacity buffer, P = 1 kbar), starting from the Li(Fe 2+ 2.5– x Mn 2+ x )(PO 4 ) 2 ( x

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https://doi.org/10.3749/canmin.1600016

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Displacive disorder and spin frustration hosted multiferroic orders in pyrochlore–spinel composites

Autor: Raja Altaf U Rahman, Peter Schmid-Beurmann, Ramaswamy Murugan

Publikováno v: Journal of Materials Chemistry C. 4:7766-7774

Samples with nominal composition BiNbMn2O7−δ (BNMO), BiTaMn2O7−δ (BTMO) and BiSbMn2O7−δ (BSMO) have been synthesized via a mixed oxide route. Powder X-ray diffraction (PXRD) patterns of the investigated samples reveal a major cubic pyrochlor

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https://doi.org/10.1039/c6tc02036d

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Room temperature magnetoelectric coupling in Fe-doped sodium bismuth titanate ceramics

Autor: Peng Zhou, Sundarakannan Balasubramanian, Raja Altaf U Rahman, Manikandan Dhamodaran, Gopalan Srinivasan, Venkidu Lakshmanan, D. E. Jain Ruth, Peter Schmid-Beurmann, Murugan Ramaswamy

Publikováno v: Journal of Alloys and Compounds. 830:154679

Multiferroic ceramics with switchable magnetization as well as high polarization at room temperature have remarkable technological impact. Herein, we report that a small concentration of Fe doping in the B-site of sodium bismuth titanate (NBT) lead t

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https://doi.org/10.1016/j.jallcom.2020.154679

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Room temperature magnetoelectric coupling and relaxor-like multiferroic nature in a biphase of cubic pyrochlore and spinel

Autor: Dhayanithi Duraisamy, Giridharan Nambi Venkatesan, Ramaswamy Murugan, Peter Schmid-Beurmann, Gopalan Srinivasan, D. E. Jain Ruth, Peng Zhou, Sujoy Chakravarty, Raja Altaf U Rahman

Publikováno v: Journal of Applied Physics. 126:044103

The search for multiferroic order in a single phase of bismuth pyrochlore has been unsuccessful so far. In this direction, our study unveiled the capability of a biphase of bismuth pyrochlore and spinel in hosting a multiferroic order at room tempera

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https://doi.org/10.1063/1.5081895

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