Most SMTs are built as triangles or rings (like the seminal Dy3cap D y sub 3 triangle) to facilitate the circular arrangement of spins.
The Silent Spin: Navigating the World of Single-Molecule Toroics Single Molecule Toroics: Synthetic Strategies, ...
Being "silent" means these molecules don't interfere with their neighbors, allowing them to be packed much more densely in a storage device than traditional magnets. Most SMTs are built as triangles or rings
) is the gold standard for SMTs due to its high magnetic anisotropy—it has a very strong "preferred" direction for its spin. Because the spins cancel each other out in
Because the spins cancel each other out in a circle, the molecule has no net magnetic dipole moment, making it invisible to most external magnetic fields.
Though they ignore magnetic fields, they can still interact with charge and spin currents, meaning we can potentially flip their states using only electricity. The Blueprint: Synthetic Strategies