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Resonant photon absorption and hole burning inCr7Niantiferromagnetic rings
- Source :
- Physical Review B. 72
- Publication Year :
- 2005
- Publisher :
- American Physical Society (APS), 2005.
-
Abstract
- Magnetization measurements on a crystal of ${\mathrm{Cr}}_{7}\mathrm{Ni}$ antiferromagnetic rings are presented. Irradiation with microwaves at frequencies between 1 and $10\phantom{\rule{0.3em}{0ex}}\mathrm{GHz}$ leads to observation of very narrow Gaussian resonant photon absorption lines which are mainly broadened by hyperfine interactions. The relaxation of magnetization after a nanosecond RF pulse is dominated by the phonon bottleneck effect. A two-pulse hole burning technique allowed us to estimate the characteristic energy diffusion time (spectral diffusion).
Details
- ISSN :
- 1550235X and 10980121
- Volume :
- 72
- Database :
- OpenAIRE
- Journal :
- Physical Review B
- Accession number :
- edsair.doi...........d27df5200d4e92e6b75c8085911a6df7