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Executive summary

Publications in peer-reviewed journals

2017

  1. C. Langrand, N. Hilairet, C. Nisr, M. Roskosz, G. Ribárik, G.B.M. Vaughan, S. Merkel, Reliability of Multigrain Indexing for Orthorhombic Polycrystals above 1 Mbar: Application to MgSiO3-Post-Perovskite, Journal of Applied Crystallography, 50, 120-130 (2017), abstract [doi: 10.1107/S1600576716018057]

2016

  1. A. D. Rosa, M. Merkulova, G. Garbarino, V. Svitlyk, J. Jacobs, C. Sahle, O. Mathon, M. Munoz, S. Merkel, Amorphous boron composite gaskets for in situ high pressure and high temperature studies, High Pressure Research, 36, 564-574 (2016), abstract [doi: 10.1080/08957959.2016.1245297]
  2. A. D. Rosa, N. Hilairet, S. Ghosh, J.-P. Perrillat, G. Garbarino, S. Merkel, Evolution of grain sizes and orientations during phase transitions in hydrous Mg2SiO4, Journal of Geophysical Research: Solid Earth, 121, 7161–7176 (2016), abstract [doi: 10.1002/2016JB013360]
  3. B. Yue, F. Hong, S. Merkel, D. Tan, J. Yan, B. Chen, and H.-K. Mao, Deformation behavior across the zircon-scheelite phase transition, Physical Review Letters, 117, 135701 (2016), abstract [doi: 10.1103/PhysRevLett.117.135701]
  4. C. Bollinger, P. Raterron, O. Castelnau, F. Detrez, S. Merkel, Textures in Deforming Forsterite Aggregates up to 8 GPa and 1673 K, Physics and Chemistry of Minerals, 43, 409-417 (2016), abstract [doi: 10.1007/s00269-016-0805-x]
  5. A. Lincot, Ph. Cardin, R. Deguen, S. Merkel, Multiscale model of global inner-core anisotropy induced by hcp-alloy plasticity, Geophysical Research Letters, 43, 1084–1091 (2016), abstract [doi: 10.1002/2015GL067019]

2015

  1. A. D. Rosa, N. Hilairet , S. Ghosh, G. Garbarino, J. Jacobs, J.-P. Perrillat, G. Vaughan and S. Merkel, In situ monitoring of phase transformation microstructures at Earth's mantle pressure and temperature using multi-grain XRD, Journal of Applied Crystallography, 48, 1346-1354 (2015), abstract [doi: 10.1107/S1600576715012765]
  2. S. Merkel and N. Hilairet, Multifit/Polydefix: a Framework for the Analysis of Polycrystal Deformation using X-Rays, Journal of Applied Crystallography, 48, 1307-1313 (2015), abstract [doi: 10.1107/S1600576715010390]
  3. F. Detrez, O. Castelnau, P. Cordier, S. Merkel, and P. Raterron, Effective viscoplastic behavior of polycrystalline aggregates lacking four independent slip systems inferred from homogenization methods; application to olivine, Journal of the Mechanics and Physics of Solids, 83, 199–220 (2015), abstract [doi: 10.1016/j.jmps.2015.05.022]
  4. A. Dewaele, C. Denoual, S. Anzellini, F. Occelli, M. Mezouar, P. Cordier, S. Merkel, M. Véron, and E. Rausch, Mechanism of the α−ε phase transformation in iron, Physical Review B, 91, 174105 (2015), abstract [doi: 10.1103/PhysRevB.91.174105]
  5. A. Lincot, S. Merkel, P. Cardin, Is inner core seismic anisotropy a marker for plastic flow of cubic iron?, Geophysical Research Letters, 42, 1326-1333 (2015), abstract [doi: 10.1002/2014GL062862]
  6. C. Bollinger, S. Merkel, P. Cordier, P. Raterron, Deformation of Forsterite Polycrystals at Mantle Pressure: Comparison with Fe-Bearing Olivine and the Effect of Iron on its Plasticity, Physics of the Earth and Planetary Interiors, 240, 95-104 (2015), abstract [doi: 10.1016/j.pepi.2014.12.002]

2014

  1. A. Lincot, R. Deguen, S. Merkel, P. Cardin, Seismic response of a model hcp iron inner core, Comptes rendus - Geoscience, 346, 148–157 (2014), abstract [doi: 10.1016/j.crte.2014.04.001]
  2. C. Nisr, G. Ribárik, T. Ungár, G. B.M. Vaughan, S. Merkel, Three-dimensional X-ray diffraction in the diamond anvil cell: application to stishovite, High Pressure Research, 34, 158-166 (2014), abstract [doi: 10.1080/08957959.2014.885021]
  3. C. Bollinger, P. Raterron, P. Cordier, S. Merkel, Polycrystalline olivine rheology in dislocation creep: Revisiting experimental data to 8.1 GPa, Physics of the Earth and Planetary Interiors, 228, 211–219 (2014), abstract [doi: 10.1016/j.pepi.2013.12.001]
  4. P. Raterron, F. Detrez, O. Castelnau, C. Bollinger, P. Cordier, S. Merkel, Multiscale modeling of upper mantle plasticity: From single-crystal rheology to multiphase aggregate deformation, Physics of the Earth and Planetary Interiors, 228, 232–243 (2014), abstract [doi: 10.1016/j.pepi.2013.11.012]

2013

  1. A. D. Rosa, C. Sanchez-valle, C. Nisr, S. R. Evans, R. Debord, S. Merkel, Shear wave anisotropy in textured phase D and constraints on deep water recycling in subduction zones, Earth and Planetary Science Letters, 377-3, pp. 13-22 (2013), abstract [doi: 10.1016/j.epsl.2013.06.036]
  2. A. Rothkirch, G. D. Gatta, M. Meyer, S. Merkel, M. Merlini, H. P. Liermann, Single-crystal diffraction at the Extreme Conditions beamline P02.2: procedure for collecting and analyzing high-pressure single-crystal data, Journal of Synchrotron Radiation, 20, (2013), abstract [doi: 10.1107/S0909049513018621]
  3. S. Merkel, H. P. Liermann, L. Miyagi, H. R. Wenk, In situ radial X-ray diffraction study of texture and stress during phase transformations in bcc-, fcc- and hcp-iron up to 36 GPa and 1000 K, Acta Materiala, 61, 5144–5151 (2013), abstract [doi: 10.1016/j.actamat.2013.04.068]
  4. P. Raterron, S. Merkel, and C. W. Holyoke, III, Axial temperature gradient and stress measurements in the deformation-DIA cell using alumina pistons, Review of Scientific Instruments, 84, 043906 (2013), abstract [doi: 10.1063/1.4801956]

2012

  1. C. Bollinger, S. Merkel, P. Raterron, In situ quantitative analysis of stress and texture development in forsterite aggregates deformed at 6 GPa and 1373 K, Journal of Applied Crystallography, 45, pp. 263-271 (2012), abstract [doi: 10.1107/S002188981200516X]
  2. C. Nisr, G. Ribárik, T. Ungár, G. B. M. Vaughan, P. Cordier, S. Merkel, High resolution three-dimensional X-ray diffraction study of dislocations in grains of MgGeO3 post-perovskite at 90 GPa, Journal of Geophysical Research, 117, B03201 (2012), abstract [doi: 10.1029/2011JB008401]
  3. S. Merkel, M. Gruson, Y. Wang, N. Nishiyama, C. N. Tomé, Texture and elastic strains in hcp-iron plastically deformed up to 17.5 GPa and 600 K: experiment and model, Modelling and Simulation in Materials Science and Engineering, 20, 024005 (2012), abstract [doi: 10.1088/0965-0393/20/2/024005]
  4. N. Hilairet, Y. Wang, T. Sanehira, S. Merkel, S. Mei, Deformation of olivine under mantle conditions: An in situ high-pressure, high-temperature study using monochromatic synchrotron radiation, Journal of Geophysical Research, 117, B01203 (2012), abstract [doi: 10.1029/2011JB008498 ]
  5. W. Kanitpanyacharoen, S. Merkel, L. Miyagi, P. Kaercher, C. N. Tomé, Y. Wang, H. R. Wenk, Significance of mechanical twinning in hexagonal metals at high pressure, Acta Materialia, 60, 430-442 (2012), abstract [doi: 10.1016/j.actamat.2011.07.055]

2011

  1. R. Deguen, P. Cardin, S. Merkel, R. A. Lebensohn, Texturing in Earth’s inner core due to preferential growth in its equatorial belt, Physics of the Earth and Planetary Interiors, 188, 173-184 (2011), abstract [doi: 10.1016/j.pepi.2011.08.008]

2010

  1. K. Hirose, Y. Nagaya, S. Merkel, Y. Ohishi, Deformation of MnGeO3 post-perovskite at lower mantle pressure and temperature, Geophysical Research Letters, 37, L20302 (2010), abstract [doi: 10.1029/2010GL044977]
  2. O. Castelnau, P. Cordier, R. A. Lebensohn, S. Merkel, P. Raterron, Microstructures and rheology of the Earth’s upper mantle inferred from a multiscale approach, Comptes Rendus Physique, 11, 304-315 (2010), abstract [doi: 10.1016/j.crhy.2010.07.011]

2009

  1. P. Raterron and S. Merkel, In situ rheological measurements at extreme pressure and temperature using synchrotron X-ray diffraction and radiography, Journal of Synchrotron Radiation, 16, 748–756 (2009), abstract [doi: 10.1107/S0909049509034426]
  2. H. P. Liermann, S. Merkel, L. Miyagi, H. R. Wenk, G. Shen, H. Cynn, W. J. Evans, Experimental method for in situ determination of material textures at simultaneous high pressure and high temperature by means of radial diffraction in the diamond anvil cell, Review of Scientific Instruments, 80, 104501 (2009), abstract [doi: 10.1063/1.3236365]
  3. L. Miyagi, S. Merkel, T. Yagi, N. Sata, Y. Ohishi and H.-R. Wenk, Diamond anvil cell deformation of CaSiO3 perovskite up to 49 GPa, Physics of the Earth and Planetary Interiors, 174, pp. 159-164 (2009), abstract [doi: 10.1016/j.pepi.2008.05.018 ]
  4. S. Merkel, C. Tomé, H. R. Wenk, Modeling analysis of the influence of plasticity on high pressure deformation of hcp-Co, Phys. Rev. B, 79, 064110 (2009), abstract [doi: 10.1103/PhysRevB.79.064110]

2007

  1. N. Hilairet, B. Reynard, Y. Wang, I. Daniel, S. Merkel, N. Nishiyama, S. Petitgirard, High-pressure creep of serpentine, interseismic deformation, and initiation of subduction, Science, 318, pp. 1910-1913 (2007), abstract [doi: 10.1126/science.1148494]
  2. K. Niwa, T. Yagi, K. Ohgushi, S. Merkel, N. Miyajima and T. Kikegawa, Lattice preferred orientation in CaIrO3 perovskite and post-perovskite formed by plastic deformation under pressure, Phys. Chem. Min., 34, pp. 679-686 (2007), abstract [doi: 10.1007/s00269-007-0182-6]
  3. S. Merkel, A. K. Mcnamara, A. Kubo, S. Speziale, L. Miyagi, Y. Meng, T. S. Duffy, and H.-R. Wenk, Deformation of (Mg,Fe)SiO3 Post-Perovskite and D'' Anisotropy, Science, 316, pp. 1729-1732 (2007), abstract [doi: 10.1126/science.1140609], full text

2006

  1. D. Antonangeli, S. Merkel and D. L. Farber, Elastic anisotropy in hcp metals at high pressure and the sound wave anisotropy of the Earth's inner core, Geophys. Res. Lett., 33, L24303 (2006), abstract [doi: 10.1029/2006GL028237]
  2. S. Merkel and T. Yagi, Effect of lattice preferred orientation on lattice strains in polycrystalline materials deformed under high pressure: Application to hcp-Co, J. Phys. Chem. Solids, 67, pp. 2119-2131 (2006), abstract [doi: 10.1016/j.jpcs.2006.05.025]
  3. S. Merkel, N. Miyajima, D. Antonangeli, G. Fiquet and T. Yagi, Lattice preferred orientation and stress in polycrystalline hcp-Co plastically deformed under high pressure, Journal of Applied Physics, 100, 023510 (2006), abstract [doi: 10.1063/1.2214224]
  4. S. Merkel, X-ray diffraction evaluation of stress in high pressure deformation experiments, J. Phys.: Condens. Matter, 18, S949-S962 (2006), abstract [doi: 10.1088/0953-8984/18/25/S03]
  5. H-R Wenk, I Lonardelli, S Merkel, L Miyagi, J Pehl, S Speziale and C E Tommaseo, Deformation textures produced in diamond anvil experiments, analysed in radial diffraction geometry, J. Phys.: Condens. Matter, 18, S933-S947 (2006), abstract [doi: 10.1088/0953-8984/18/25/S02]
  6. L. Miyagi, S. Merkel, T. Yagi, N. Sata, Y. Ohishi and H.-R. Wenk, Quantitative Rietveld texture analysis of CaSiO3 perovskite deformed in a diamond anvil cell, J. Phys.: Condens. Matter, 18, S995-S1005 (2006), abstract [doi: 10.1088/0953-8984/18/25/S07]
  7. C.E. Tommaseo, J. Devine, S. Merkel, S. Speziale and H.-R. Wenk, Texture development and elastic stresses in magnesiowüstite at high pressure, Physics and Chemistry of Minerals, 33, pp. 84-97 (2006), abstract [doi: 10.1007/s00269-005-0054-x]
  8. S. Merkel, A. Kubo, L. Miyagi, S. Speziale, T. S. Duffy, H.-K. Mao and H.-R. Wenk, Plastic Deformation of MgGeO3 Post-Perovskite at Lower Mantle Pressures, Science, 311, pp. 644-646 (2006), abstract [doi: 10.1126/science.1121808], full text
  9. T. Ferroir, T. Yagi, T. Onozawa, S. Merkel, N. Miyajima, N. Nishiyama, T. Irifune, T. Kikegawa, Equation of state and phase transition in KAlSi3O8 hollandite at high pressure, American Mineralogist, 91, 327-332 (2006), abstract [doi: 10.2138/am.2006.1879]

2005

  1. D. Antonangeli, M. Krisch, G. Fiquet, J. Badro, D. L. Farber, A. Bossak, and S. Merkel, Aggregate and single crystalline elasticity of hcp cobalt at high pressure, Physical Review B, 72, 134303 (2005), abstract [doi: 10.1103/PhysRevB.72.134303]
  2. S. Merkel and T. Yagi, X-ray transparent gasket for diamond anvil cell high pressure experiments, Review of Scientific Instruments, 76, 046109 (2005), abstract [doi: 10.1063/1.1884195]
  3. S. Merkel, J. Shu, P. Gillet, H.K. Mao and R.J. Hemley, X-ray diffraction study of the single crystal elastic moduli of e-Fe up to 30 GPa, Journal of Geophysical Research, 110, B05201 (2005), abstract [doi: 10.1029/2004JB003197]

2004

  1. Y. Sueda, T. Irifune, N. Nishiyama, R.P. Rapp, T. Ferroir, T. Onozawa, T. Yagi, S. Merkel, N. Miyajima and K. Funakoshi, A new high-pressure form of KAlSi3O8 under lower mantle conditions, Geophysysical Research Letters, 31, L23612 (2004), abstract [doi: 10.1029/2004GL021156]
  2. S. Merkel, H.R. Wenk, P. Gillet, H.K. Mao and R.J. Hemley, Deformation of polycrystalline iron up to 30 GPa and 1000 K, Physics of the Earth and Planetary Interiors, 145, pp 239-251 (2004) Correction: Physics of the Earth and Planetary Interiors, 150, pp. 351-352 (2005), abstract [doi: 10.1016/j.pepi.2004.04.001]

2003

  1. S. Merkel, H.R. Wenk, J. Badro, G. Montagnac, P. Gillet, H.K. Mao, R.J. Hemley, Deformation of (Mg0.9,Fe0.1)SiO3 perovskite aggregates up to 32 GPa, Earth and Planetary Science Letters, 209, pp. 351-360 (2003), abstract [doi: 10.1016/S0012-821X(03)00098-0]

2002

  1. S. Merkel, A.P. Jephcoat, J. Shu, H.K. Mao, P. Gillet and R.J. Hemley, Equation of state, elasticity and shear strength of pyrite under high pressure, Physics and Chemistry of Minerals, 29, pp. 1-9 (2002), abstract [doi: 10.1007/s002690100207]
  2. S. Merkel, H.R. Wenk, J. Shu, G. Shen, P. Gillet, H.K. Mao, and R.J. Hemley, Deformation of polycrystalline MgO at pressures of the lower mantle, Journal of Geophysical Research, 107, 2271 (2002), abstract [doi: 10.1029/2001JB000920]

2001

  1. J. Chéry, S. Merkel and S. Bouissou, A physical basis for time clustering of large earthquakes, Bull. Seismol. Soc. Am., 91, p. 1685-1693 (2001), abstract [doi: 10.1785/0120000298]
  2. S. Matthies, S. Merkel, H.R. Wenk, R.J. Hemley and H.K. Mao, Effects of texture on the determination of elasticity of polycrystalline e-iron from diffraction measurements, Earth and Planetary Science Letters, 194, pp. 201-212 (2001), abstract [doi: 10.1016/S0012-821X(01)00547-7]

2000

  1. S. Merkel, A.F. Goncharov, H.K. Mao, P. Gillet and R.J. Hemley, Raman spectroscopy of Iron to 152 Gigapascals: Implications for Earth's Inner Core, Science, 288, pp. 1626-1629 (2000), abstract [doi: 10.1126/science.288.5471.1626], full text

1999

  1. S. Merkel, R.J. Hemley and H.K. Mao, Finite-element modeling of diamond deformation at multimegabar pressures, Applied Physics Letter, 74, pp. 656-658 (1999), abstract [doi: 10.1063/1.123031]

Editorials, book chapters, thesis, conference proceedings...

2017

  1. S. Merkel, N. Hilairet, P. Raterron, A. Rosa, Apport des rayons X à l'étude de microstructures etpropriétés mécaniques sous pression, Actes du colloque Rayons X et matière : RX 2015, (2017)

2016

  1. S. Merkel, P. Cordier, Deformation of Core and Lower-Mantle Materials, in Deep Earth: Physics and Chemistry of the Lower Mantle and Core (eds H. Terasaki and R. A. Fischer), John Wiley & Sons, Inc, Hoboken, NJ (2016) Chap. 7, pp. 89-99, abstract [doi: 10.1002/9781118992487.ch7]

2015

  1. S. Merkel, Études Expérimentales de Plasticité aux Conditions de la Terre Profonde, Actes du Colloque Mécamat, Aussois, France (2015), PDF file

2014

  1. P. Cardin and S. Merkel, Earth's inner core, Comptes rendus - Geoscience, 346, P. 99 (2014) [doi: 10.1016/j.crte.2014.07.001]

2013

  1. S. Merkel, News & Views -- Core processes: Earth's inner weakness, Nature Geoscience, 6, 514-515 (2013), abstract [doi: 10.1038/ngeo1861]

2010

  1. S. Merkel, Radial diffraction in the diamond anvil cell: methods and applications, in High-Pressure Crystallography: From Fundamental Phenomena to Technological Applications, E. Boldyreva and P. Dera (eds.), pp. 111-122, Springer, Dordrecht, The Netherlands. (2010), abstract [doi: 10.1007/978-90-481-9258-8_10]

2009

  1. S. Merkel, Approche experimentale de la plasticite sous haute pression, Habilitation à Diriger les Recherches, Université Lille 1, France, 323 p. (2009), PDF file

2008

  1. S. Merkel, Diffraction radiale en cellule diamant: contraintes et applications, Les verrous technologiques dans l'expérimentation haute pression, Réseau des hautes pressions du CNRS, pp. 101-117 (2008), abstract, PDF file

2005

  1. P. Cordier, H. Couvy, S. Merkel and D. Weidner, Plastic deformation of minerals at high pressure: Experimental techniques, EMU Notes in Mineralogy, 7, Chapter 14 (2005), abstract

2004

  1. S. Merkel, The mantle deformed, Nature, 428, pp. 812-813 (2004), abstract [doi: 10.1038/428812a]

2002

  1. S. Merkel, Élasticité et orientations préférentielles dans la Terre profonde: approche expérimentale, Thèse de doctorat, École Normale Supérieure de Lyon, 255 p. (2002), abstract, PDF file

2000

  1. S. Merkel, R.J. Hemley, H.K. Mao and D.M. Teter, Finite-element modeling and ab initio calculations of megabar stresses in the diamond anvil cell, Science and technology of high pressure, proceedings of the conference AIRAPT-XVII, edited by M.H. Maghnani W.J. Nellis and M.F. Nicol, pp. 68-73, University Press (India) Limited (2000) (2000), abstract, PDF file
  2. S. Merkel, J. Shu, H.R. Wenk, P. Gillet, R.J. Hemley, H.K. Mao and G. Shen, Preferred orientation in e-Fe under high pressure and high temperature, APS User Activity Report, (2000), PDF file
  3. R.J. Hemley, A.F. Goncharov, Z. Liu, H.K. Mao and S. Merkel, High-pressure infrared synchrotron and Raman microspectroscopy of Earth and planetary materials, Microbeam Analysis 2000, Inst. Phys. Conf. Ser. No 165, Edited by D.B. Williams and R. Shimizu, p. 87, Institute of Physics Publishing (Bristol and Philadelphia) (2000)
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© Sébastien Merkel, Université Lille 1, France

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