Magneto-elastic waves in crystals of magnetic molecules

Abstract

We study magneto-elastic effects in crystals of magnetic molecules. Coupled equations of motion for spins and sound are derived and the possibility of strong resonant magneto-acoustic coupling is demonstrated. Dispersion laws for interacting linear sound and spin excitations are obtained for bulk and surface acoustic waves. We show that ultrasound can generate inverse population of spin levels. Alternatively, the decay of the inverse population of spin levels can generate ultrasound. Possibility of solitary waves of the magnetization accompanied by the elastic twists is demonstrated.

8 PR pages, 3 figures

References in corpus (5)

• Phonon superradiance and phonon laser effect in nanomagnets
• Magnetic long-range order induced by quantum relaxation in single-molecule magnets
• Long-range ferromagnetic dipolar ordering of high-spin molecular clusters
• Universal Decoherence in Solids
• Two-phonon spin-lattice relaxation of rigid atomic clusters

Cited by in corpus (4)

• Slow optical solitons via intersubband transitions in a semiconductor quantum well
• Radiation- and Phonon-Bottleneck-Induced Tunneling in the Fe8 Single-Molecule Magnet
• Magnetization relaxation in the single molecule magnet Ni${}_4$ under continuous microwave irradiation
• Phonon bottleneck in the low-excitation limit