Experimental and theoretical studies in solid state and low-temperature physics. Annual progress report for 1973

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Experimental and theoretical investigations have been carried out in a broad area of low temperature and solid state physics which includes superconductivity, theory of quantum crystals, magnetism in metals, and liquid helium. The pair-field susceptibility of a superconductor has been determined both above and below T/sub c/. Anomalies in the heat capacity in the vicinity of T/sub c/ have been observed in thin superconducting films. The theory of quantum crystals has been applied to the problem of the ground state properties of nucleon matter. The results imply that most of the neutron matter in every neutron star is in the ... continued below

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Pages: 55

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Creator: Unknown. January 1, 1973.

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Description

Experimental and theoretical investigations have been carried out in a broad area of low temperature and solid state physics which includes superconductivity, theory of quantum crystals, magnetism in metals, and liquid helium. The pair-field susceptibility of a superconductor has been determined both above and below T/sub c/. Anomalies in the heat capacity in the vicinity of T/sub c/ have been observed in thin superconducting films. The theory of quantum crystals has been applied to the problem of the ground state properties of nucleon matter. The results imply that most of the neutron matter in every neutron star is in the crystalline phase. Enhanced hyperfine nuclear cooling of PrCu/sub 6/ has been used successfully to achieve temperatures to at least 3 mK with slow warmup. Measurements on local moments in metals using nuclear orientation are being carried out at these temperatures. Preliminary results have been obtained in measurements of the differential osmotic pressure in the critical region of /sup 3/He//sup 4/He mixtures. Evidence has been found for surface film superfluidity in mixtures in regions of the phase diagram where the bulk liquid is normal. A new ac technique has been developed to study superfluid flow through fine channels in a manner analogous to the study of I-- V characteristics of superconducting weak links. (auth)

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Pages: 55

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  • Other Information: Orig. Receipt Date: 30-JUN-74

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  • Report No.: COO--1569-102
  • Grant Number: AT(11-1)-1569
  • DOI: 10.2172/4398606 | External Link
  • Office of Scientific & Technical Information Report Number: 4398606
  • Archival Resource Key: ark:/67531/metadc1023279

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 1, 1973

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  • Oct. 15, 2017, 10:09 p.m.

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  • Oct. 26, 2017, 2:24 p.m.

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Experimental and theoretical studies in solid state and low-temperature physics. Annual progress report for 1973, report, January 1, 1973; United States. (digital.library.unt.edu/ark:/67531/metadc1023279/: accessed November 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.