Studies of Solid Helium Below 1.0K.

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Abstract:

The report provides a summary of the research results obtained. The primary thrust of the work has been the development and application of heat pulse techniques to the study of condensed helium. Extensive work has been done on liquid He4 and on single crystals of He4. In the latter, diffusive, second-sound and ballistic modes of heat propagation have been observed and analyzed in terms of intrinsic properties of the system. This work has led to new information about solid helium, and has also revealed instrumental and interpretational subtleties associated with the heat pulse techniques used. Author

Author(s):
Shen, Louis N. Y. ; Trefny, John U.
Author Organization(s):
WESLEYAN UNIV MIDDLETOWN CONN
Descriptive Note:
Final rept. 1 Feb 69-31 Jan 72,
Pagination:
0006

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AROD-7957:5-P
Contract/Grant Number(s):
DA-ARO(D)-31-124-G1092
Project Number(s):
DA-2-0-061102-B-11-B
Monitor Series:
7957:5-P
 Subject Terms
Joint Capability Areas:
JCA_3.2_Engagement; JCA_3_Force Application
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*SOLIDIFIED GASES, HELIUM), (*HELIUM, CONDUCTION(HEAT TRANSFER)), CRYOGENICS, TEMPERATURE SENSITIVE ELEMENTS, SUPERCONDUCTORS, TUNNELING(ELECTRONICS)
Field(s)/Group(s):
Solid State Physics
Keyword(s):
*SECOND SOUND, HELIUM 4, JOSEPHSON JUNCTIONS
Report Date:
1972 Feb 01