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19922026
most citedThe Sloan Digital Sky Survey: Technical Summary

10.4k citations

Showing 2020 · cond-mat.mtrl-sciShow all

8 papers · 2 filters

cond-mat.mtrl-sci2020★ 177 cited

High-pressure synthesis of Dirac materials: layered van der Waals bonded BeN polymorph

Maxim Bykov, Timofey Fedotenko, Stella Chariton +17

High pressure chemistry is known to inspire the creation of unexpected new classes of compounds with exceptional properties. Here we report the synthesis at ~90 GPa of novel beryll…

cond-mat.mtrl-sci2020★ 2 cited

Negative Thermal Expansion in Solid Deuteromethane

Yu. A. Freiman, V. V. Vengerovsky, Alexander F. Goncharov

The thermal expansion at constant pressure of solid CD III is calculated for the low temperature region where only the rotational tunneling modes are essential and the effect o…

cond-mat.mtrl-sci2020★ 13 cited

A latent heat method to detect melting and freezing of metals at megabar pressures

Zachary M. Geballe, Nicholas Holtgrewe, Amol Karandikar +3

The high-pressure melting curves of metals provide simple and useful tests for theories of melting, as well as important constraints for the modeling of planetary interiors. Here,…

cond-mat.mtrl-sci2020★ 22 cited

Novel hydrogen clathrate hydrate

Yu Wang, Konstantin Glazyrin, Valery Roizen +8

We report a new hydrogen clathrate hydrate synthesized at 1.2 GPa and 298 K documented by single-crystal X-ray diffraction, Raman spectroscopy, and first-principles calculations. T…

cond-mat.mtrl-sci2020★ 64 cited

Low thermal conductivity of iron-silicon alloys at Earth core conditions with implications for the geodynamo

Wen-Pin Hsieh, Alexander F. Goncharov, Stéphane Labrosse +5

Earth core is composed of iron (Fe) alloyed with light elements, e.g., silicon (Si). Its thermal conductivity critically affects Earth thermal structure, evolution, and dynamics, a…

cond-mat.mtrl-sci2020★ 26 cited

Prediction of an Extended Ferroelectric Clathrate

Li Zhu, Timothy A. Strobel, R. E. Cohen

Using first-principles calculations, we predict a lightweight room-temperature ferroelectric carbon-boron framework in a host/guest clathrate structure. This ferroelectric clathrat…

cond-mat.mtrl-sci2020★ 13 cited

Novel rhenium carbides at 200 GPa

Saiana Khandarkhaeva, Timofey Fedotenko, Maxim Bykov +7

Laser heating of rhenium in a diamond anvil cell to 3000 K at about 200 GPa results in formation of two previously unknown rhenium carbides, hexagonal WC-type structured ReC and or…

cond-mat.mtrl-sci2020★ 30 cited

Novel Superstructure-Phase Two-Dimensional Material 1-VSe at High Pressure

Raimundas Sereika, Changyong Park, Curtis Kenney-Benson +11

A superstructure can elicit versatile new properties of materials by breaking their original geometrical symmetries. It is an important topic in the layered graphene-like two-dimen…