The rotational transition in adsorbed methane films

A. D. Migone; M. H.W. Chan; J. R. Boyer

doi:10.1016/0378-4363(81)90698-7

The rotational transition in adsorbed methane films

A. D. Migone, M. H.W. Chan, J. R. Boyer

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

Heat capacity measurements of multilayer methane film adsorbed on exfoliated graphite surfaces were made between 12 and 25 K. The heat capacity peak height and the heat associated with rotational transition were found to decrease as the film thickness was reduced. Our data suggest that the bulk-like rotational ordering transition is absent for an adsorbed film less than 3.6 ± 0.5 layers thick. The transition temperature was found to shift to a lower value as the film thickness was reduced.

Original language	English (US)
Pages (from-to)	787-788
Number of pages	2
Journal	Physica B+C
Volume	108
Issue number	1-3
DOIs	https://doi.org/10.1016/0378-4363(81)90698-7
State	Published - 1981

All Science Journal Classification (ASJC) codes

General Engineering

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10.1016/0378-4363(81)90698-7

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title = "The rotational transition in adsorbed methane films",

abstract = "Heat capacity measurements of multilayer methane film adsorbed on exfoliated graphite surfaces were made between 12 and 25 K. The heat capacity peak height and the heat associated with rotational transition were found to decrease as the film thickness was reduced. Our data suggest that the bulk-like rotational ordering transition is absent for an adsorbed film less than 3.6 ± 0.5 layers thick. The transition temperature was found to shift to a lower value as the film thickness was reduced.",

author = "Migone, {A. D.} and Chan, {M. H.W.} and Boyer, {J. R.}",

note = "Funding Information: shows that the orientation of the first 3.6 + 0.5 layers of adsorbed methane are determined by the graphite potential and do not participate in bulk-like rotational ordering transition. Further experiments on this problem are in progress. This research is partially supported by the Research Corporation.",

year = "1981",

doi = "10.1016/0378-4363(81)90698-7",

language = "English (US)",

volume = "108",

pages = "787--788",

journal = "Physica B+C",

issn = "0378-4363",

publisher = "North-Holland Publ Co",

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TY - JOUR

T1 - The rotational transition in adsorbed methane films

AU - Migone, A. D.

AU - Chan, M. H.W.

AU - Boyer, J. R.

N1 - Funding Information: shows that the orientation of the first 3.6 + 0.5 layers of adsorbed methane are determined by the graphite potential and do not participate in bulk-like rotational ordering transition. Further experiments on this problem are in progress. This research is partially supported by the Research Corporation.

PY - 1981

Y1 - 1981

N2 - Heat capacity measurements of multilayer methane film adsorbed on exfoliated graphite surfaces were made between 12 and 25 K. The heat capacity peak height and the heat associated with rotational transition were found to decrease as the film thickness was reduced. Our data suggest that the bulk-like rotational ordering transition is absent for an adsorbed film less than 3.6 ± 0.5 layers thick. The transition temperature was found to shift to a lower value as the film thickness was reduced.

AB - Heat capacity measurements of multilayer methane film adsorbed on exfoliated graphite surfaces were made between 12 and 25 K. The heat capacity peak height and the heat associated with rotational transition were found to decrease as the film thickness was reduced. Our data suggest that the bulk-like rotational ordering transition is absent for an adsorbed film less than 3.6 ± 0.5 layers thick. The transition temperature was found to shift to a lower value as the film thickness was reduced.

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U2 - 10.1016/0378-4363(81)90698-7

DO - 10.1016/0378-4363(81)90698-7

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VL - 108

SP - 787

EP - 788

JO - Physica B+C

JF - Physica B+C

IS - 1-3

ER -

The rotational transition in adsorbed methane films

Abstract

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