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Debye relaxation and 250 K anomaly in glass forming monohydroxy alcohols

Autor: Bauer, S., Burlafinger, K., Gainaru, C., Lunkenheimer, P., Hiller, W., Loidl, A., Böhmer, R.

A previous dielectric, near-infrared (NIR), and nuclear magnetic resonance study on the hydrogen-bonded liquid 2-ethyl-1-hexanol [C. Gainaru et al., Phys. Rev. Lett. 107, 118304 (2011)] revealed anomalous behavior in various static quantities near 25

Externí odkaz: http://arxiv.org/abs/1301.4852

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Hydrogen-bond equilibria and life times in a supercooled monohydroxy alcohol

Autor: Gainaru, C., Kastner, S., Mayr, F., Lunkenheimer, P., Schildmann, S., Weber, H. J., Hiller, W., Loidl, A., Böhmer, R.

Publikováno v: Phys. Rev. Lett. 107, 118304 (2011)

Dielectric loss spectra covering 13 decades in frequency were collected for 2-ethyl-1-hexanol, a monohydroxy alcohol that exhibits a prominent Debye-like relaxation, typical for several classes of hydrogen-bonded liquids. The thermal variation of the

Externí odkaz: http://arxiv.org/abs/1106.5614

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Nuclear magnetic resonance measurements reveal the origin of the Debye process in monohydroxy alcohols

Autor: Gainaru, C., Meier, R., Schildmann, S., Lederle, C., Hiller, W., Rössler, E. A., Böhmer, R.

Monohydroxy alcohols show a structural relaxation and at longer time scales a Debye-type dielectric peak. From spin-lattice relaxation experiments using different nuclear probes an intermediate, slower-than-structural dynamics is identified for n-but

Externí odkaz: http://arxiv.org/abs/1008.3370

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