We present a microscopic theory of electron spin resonance in field-induced spin-density waves in Bechgaard salts. Assuming that the dipole interaction between electron spins is the most important symmetry-breaking energy, we construct the effective spin Hamiltonian. The resulting equation resembles the Leggett equation describing the spin dynamics of superfluid phases of He3. In particular we predict the electron spin resonances at =l and =[(H)2+t2]1/2 for the longitudinal and transverse resonance, respectively, where H is the Larmor frequency.
ASJC Scopus subject areas
- Condensed Matter Physics