Tootfinder

From stripes to hexagons: strain-induced 2D Pb phases confined between graphene and SiC
Markus Gruschwitz, Sergii Sologub, Chitran Ghosal, Zamin Mamiyev, Yuran Niu, Alexei Zakharov, Christoph Tegenkamp
https://arxiv.org/abs/2506.10791

From stripes to hexagons: strain-induced 2D Pb phases confined between graphene and SiC
The intercalation of metals beneath graphene offers a powerful route to stabilizing and protecting novel two-dimensional (2D) phases. The epitaxial growth of Pb monolayers on SiC(0001), combined with the relatively large spacing of the suspended graphene, makes this system particularly distinctive. Using low-energy electron diffraction (LEED) and various microscopy techniques -- including scanning electron microscopy (SEM), scanning tunneling microscopy (STM), and low-energy electron microscopy…

Dirac edge states of two-dimensional altermagnetic topological crystalline insulators
Raghottam M. Sattigeri, Xujia Gong, Amar Fakhredine, Carmine Autieri, Giuseppe Cuono
https://arxiv.org/abs/2506.10782

Dirac edge states of two-dimensional altermagnetic topological crystalline insulators
Two-dimensional (2D) metallic altermagnets present exciting opportunities for both fundamental research and practical innovations. Their ability to enhance tunneling magnetoresistance in magnetic tunnel junctions, combined with the direct control of spin currents via electric fields, makes them highly promising for spintronic devices. Moreover, the rich electronic structure of altermagnets can host nontrivial topological phases. In particular, topological crystalline insulators are compounds wh…

Schwinger-Keldysh approach to tunneling transport at a hadron-quark interface
Tingyu Zhang, Hiroyuki Tajima, Motoi Tachibana
https://arxiv.org/abs/2506.09725

Schwinger-Keldysh approach to tunneling transport at a hadron-quark interface
We theoretically discuss quantum tunneling transport and frictions at a hadron-quark matter interface based on the Schwinger-Keldysh approach combined with the tunneling Hamiltonian, which has been developed in the context of condensed matter physics. In the inner core of massive neutron stars, it is expected that cold quark matter appears at sufficiently high densities and hence exhibits color superconductivity, surrounded by nucleon superfluids at lower densities. The perturbative expressions…

This is the next stages of Columbus’s long-running effort to update its 1950s-era zoning code. This phase will incorporate a housing component to address affordability issues by better aligning work and residential areas.
We also need to build more houses.
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Experimental evidence of the topological obstruction in twisted bilayer graphene
F. Mesple, P. Mallet, C. Dutreix, G. Lapertot, J-Y. Veuillen, V. T. Renard
https://arxiv.org/abs/2506.08913

Experimental evidence of the topological obstruction in twisted bilayer graphene
The rich physics of magic angle twisted bilayer graphene (TBG) results from the Coulomb interactions of electrons in flat bands of non-trivial topology. While the bands' dispersion is well characterized, accessing their topology remains an experimental challenge. Recent measurements established the local density of states (LDOS) as a topological observable. Here, we use scanning tunnelling microscopy to investigate the LDOS of TBG near a defect. We observe characteristic patterns resulting from…