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96 papers
Anisotropy and Isotope Effect in Superconducting Solid Hydrogen
Mehmet Dogan, James R. Chelikowsky, Marvin L. Cohen
Elucidating the phase diagram of solid hydrogen is a key objective in condensed matter physics. Several decades ago, it was proposed that at low temperatures and high pressures, so…
Magnetism and Interlayer Bonding in Pores of Bernal-Stacked Hexagonal Boron Nitride
Mehmet Dogan, Marvin L. Cohen
When single-layer h-BN is subjected to a high-energy electron beam, triangular pores with nitrogen edges are formed. Because of the broken sp2 bonds, these pores are known to posse…
High Temperature Superconductivity in the Candidate Phases of Solid Hydrogen
Mehmet Dogan, Sehoon Oh, Marvin L. Cohen
As the simplest element in nature, unraveling the phase diagram of hydrogen is a primary task for condensed matter physics. As conjectured many decades ago, in the low-temperature…
Prediction of High Temperature Superconductivity in C2/c-24 Solid Hydrogen
Mehmet Dogan, Sehoon Oh, Marvin L. Cohen
Recent experimental developments in hydrogen-rich materials in high pressures have put this class of materials above others in the race toward room temperature superconductivity. A…
Ultra-Narrow TaS2 Nanoribbons
Jeffrey D. Cain, Sehoon Oh, Amin Azizi +6
Imposing additional confinement in two-dimensional (2D) materials can yield further control over the associated electronic, optical, and topological properties. However, synthesis…
Anomalous behavior in high-pressure carbonaceous sulfur hydride
Mehmet Dogan, Marvin L. Cohen
A new experimental study by Snider et al. [Nature 586, 373-377 (2020)] reported behavior in a high-pressure carbon-sulfur-hydrogen system that has been interpreted by the authors a…