User:Hongloc1221/Natalia Dubrovinskaia

Education
In 1983, Natalia Dubrovinskaia earned a Master of Science degree in geochemistry from Moscow State University and she received her PhD in crystallography and crystal physics at the same institution 6 years later. Working as a senior researcher fellow until 2007, she finished the Habilitation of    crystallography and Umhabilitation the following year at University of     Bayreuth, Germany.

Career
Dubrovinskaia was a research fellow at the Ministry of Geology and a post-doctoral researcher at Uppsala University.

In 2005, Dubrovinskaia led a team of researchers from the University of Bayreuth who were reported to have produced aggregated diamond nanorods from fullerene under high temperatures and pressures. Two years earlier, large samples of nanodiamond were produced in a cheaper way (from graphite) and discovered to be harder than diamond by Japanese researchers.

Dubrovinskaia worked at the Heidelberg University in Germany as a Privatdozent and senior scientist from 2007 to 2011.

Since then, Natalia Dubrovinskaia returns to University of Bayreuth and employed as Professor of Materials Physics and Technology at Extreme Conditions.

Natalia Dubrovinskaia is currently the Chair of Crystallography at the University of Bayreuth in Germany

Natalia Dubrovinskaia is currently the Editor-in-chief for the International Journal of Materials and Chemistry

Research
Throughout the career of Professor Dubrovinskaia, she has published over 222 papers cover a variety of topics but mostly focus on Crystallography, Diamond anvil cell, Analytical chemistry, Diffraction and Diamond. Her extensive research in the field of biology encompasses various subjects, such as X-ray crystallography, Bulk modulus, and Boron. Additionally, her investigation using Diamond anvil cell focuses on areas like Mineralogy, specifically related to Mantle and Stishovite, as well as Thermodynamics, which has connections to fields like Core. Her works in Analytical chemistry encompasses Ab initio quantum chemistry methods and Ambient pressure, while her Diffraction study integrates various areas including Elasticity, Phase transition, Single crystal, Synchrotron, and Isostructural. Her investigation delves into the correlation between Diamond and topics such as Chemical engineering, which intersect with challenges in Metal-related issues. She has also done research into a new method of synthesising rare earth-metal compounds. In this research her main area of focus was on exploring the intriguing reactivity of alkali halides, like common table salt NaCl, when subjected to high pressure in the presence of rare-earth metals such as Yttrium and Dysprosium.

The hardest known oxide
A new polymorph of titanium dioxide that possesses the cotunnite structure and is the hardest oxide known. This phase of titanium dioxide exhibits remarkable hardness and resistance to compression, making it one of the toughest polycrystalline materials to be identified so far. The synthesis of this material requires high pressures and temperatures, exceeding 60 GPa and 1,000 K, respectively.

Implementation of micro-ball nanodiamond anvils for high-pressure studies above 6 Mbar
The use of micro-semi-balls made of nanodiamond as second-stage anvils in diamond anvil cells has extended the achievable pressure range in static compression experiments to above 600 GPa. By synthesizing superhard nanodiamond micro-anvils, researchers have successfully studied the equation of state of rhenium at pressures up to 640 GPa and demonstrated the importance of in situ ultra high-pressure measurements for accurate determination of material properties at extreme conditions.

Superhard nanocomposite of dense polymorphs of boron nitride: Noncarbon material has reached diamond hardness
The study have successfully synthesized boron nitride nanocomposites that exhibit significantly higher hardness compared to single crystal c-BN. This increase in hardness is attributed to the Hall-Petch and quantum confinement effects, which are a result of reducing the grain size to 14 nm and forming two dense BN phases with hexagonal and cubic structures within the grains. The maximum hardness achieved was measured at 85(5) GPa, showcasing the remarkable mechanical property enhancement of these nanocomposites.

Publications
Natalia Dubrovinskaia as been an author or affiliate of these publications,
 * 18 December 2000, Absence of a pressure-induced structural phase transition in Ti3Al up to 25 GPa
 * 21 May 2001, Pressure-Induced Invar Effect in Fe-Ni Alloys
 * 7 December 2001, Experimental and Theoretical Identification of a New High-Pressure TiO2 Polymorph
 * 17 May 2004, Titanium metal at high pressure: Synchrotron experiments and ab initio calculations
 * 2 September 2004, Cubic TiO2 as a potential light absorber in solar-energy conversion
 * 1 December 2004, High-pressure and high-temperature synthesis of the cubic TiO2 polymorph
 * 24 March 2005, Structural characterization of the hard fullerite phase obtained at 13GPa and 830K
 * 8 December 2005, Beating the Miscibility Barrier between Iron Group Elements and Magnesium by High-Pressure Alloying
 * 25 January 2007, Noblest of All Metals Is Structurally Unstable at High Pressure
 * 19 October 2007, Pure Iron Compressed and Heated to Extreme Conditions
 * 7 May 2009, Superhard Semiconducting Optically Transparent High Pressure Phase of Boron
 * 18 November 2010, Pressure-induced isostructural phase transformation in γ-B28
 * 21 April 2011, Impact of lattice vibrations on equation of state of the hardest boron phase
 * 25 May 2011, Electron-Deficient and Polycenter Bonds in the High-Pressure γ−B28 Phase of Boron
 * 17 October 2011, Missing-atom structure of diamond Σ5 (001) twist grain boundary
 * 29 July 2013, Experimental evidence of orbital order in α-B12 and γ-B28 polymorphs of elemental boron
 * 7 October 2013, Discovery of a Superhard Iron Tetraboride Superconductor
 * 19 November 2013, High-pressure behavior of structural, optical, and electronic transport properties of the golden Th2S3-type Ti2O3
 * 15 January 2014, Role of Disorder in the Thermodynamics and Atomic Dynamics of Glasses
 * 24 February 2014, Peierls distortion, magnetism, and high hardness of manganese tetraboride
 * 26 May 2016, Pressure-induced crossing of the core levels in 5d metals
 * 16 May 2017, Nonicosahedral boron allotrope synthesized at high pressure and high temperature
 * 8 June 2018, Breakdown of Magnetic Order in the Pressurized Kitaev Iridate β−Li2IrO3
 * 17 July 2019, Pressure-Induced Hydrogen-Hydrogen Interaction in Metallic FeH Revealed by NMR
 * 28 May 2020, High-Pressure Polymeric Nitrogen Allotrope with the Black Phosphorus Structure
 * 8 October 2020, Proton mobility in metallic copper hydride from high-pressure nuclear magnetic resonance
 * 15 October 2020, Novel sulfur hydrides synthesized at extreme conditions
 * 12 March 2021, Revealing the Complex Nature of Bonding in the Binary High-Pressure Compound FeO2
 * 26 April 2021, High-Pressure Synthesis of Dirac Materials: Layered van der Waals Bonded BeN4 Polymorph
 * 22 September 2021, Novel High-Pressure Yttrium Carbide γ−Y4C5 Containing [C2] and Nonlinear [C3] Units with Unusually Large Formal Charges
 * 14 February 2022, High-pressure Na3(N2)4, Ca3(N2)4, Sr3(N2)4, and Ba(N2)3 featuring nitrogen dimers with noninteger charges and anion-driven metallicity
 * 9 January 2023, High-pressure hP3 yttrium allotrope with CaHg2-type structure as a prototype of the hP3 rare-earth hydride series

Awards

 * The Scientific American has honored Natalia Dubrovinskaia as one of Research leader of the year in Material Progress on November 12, 2006.
 * Member of the European High Pressure Research Group Committee from 2011 to 2014.
 * Awarded Heisenberg Professorship in the Excellence Program of the German Science Foundation (DFG).
 * Received honorary Doctors at Linköping University in 2014.
 * Secretary of the European High Pressure Research Group Committee from 2015 to 2018.
 * Since 2016, Dubrovinskaia got appointed as a Member of Commission on High Pressure of the International Union of Crystallography.
 * Awarded Gregori Aminoff Prize 2017 from the Royal Swedish Academy of Sciences.