Nature, Published online: 05 March 2025; doi:10.1038/s41586-025-08621-y
Rhombohedral tetralayer graphene aligned to a hexagonal boron nitride substrate hosts gate-tunable superconductivity and quantized anomalous Hall states, and thermodynamic compressibility measurements further show a fractional Chern insulator at zero magnetic field, paving the way for new hybrid interfaces between superconductors and topological edge states.
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The practice of separating children from their parents and resulting consequences continue to be current concerns. In spite of the previous court order, families are still being separated at the border.
Separating children from their parents while attempting to cross from Mexico into the United States without authorization often also means separation from the family. Both have adverse affects on the children and parents, the family and future generations.
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