Simultaneous measurements of the thermal conductivity and specific heat at the smectic A-nematic phase transition in 4-n-octyl-4′-cyanobiphenyl (8CB) have been carried out with the photoacoustic technique. A critical increase in the thermal conductivity is reported. A critical decrease in the thermal diffusivity data confirms that the transition in 8CB is fluctuation dominated as also shown by the critical behaviour of the specific heat. © 1989 Taylor & Francis Group, LLC.
Zammit, U., Marinelli, M., Pizzoferrato, R., Scudieri, F., Martellucci, S. (1989). Simultaneous photoacoustic measurements of specific heat and thermal conductivity critical behaviour at a smectic A–nematic phase transition. LIQUID CRYSTALS, 4(6), 619-624 [10.1080/02678298908033196].
Simultaneous photoacoustic measurements of specific heat and thermal conductivity critical behaviour at a smectic A–nematic phase transition
ZAMMIT, UGO;MARINELLI, MASSIMO;PIZZOFERRATO, ROBERTO;SCUDIERI, FOLCO;MARTELLUCCI, SERGIO
1989-01-01
Abstract
Simultaneous measurements of the thermal conductivity and specific heat at the smectic A-nematic phase transition in 4-n-octyl-4′-cyanobiphenyl (8CB) have been carried out with the photoacoustic technique. A critical increase in the thermal conductivity is reported. A critical decrease in the thermal diffusivity data confirms that the transition in 8CB is fluctuation dominated as also shown by the critical behaviour of the specific heat. © 1989 Taylor & Francis Group, LLC.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
