{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/25079"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/25079","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Low temperature specific heat of Sn and Sn-In alloys","abstract":"The normal state specific heats of pure tin and alloys consisting of 0.5, 1, 2, 4, and 6 atomic percent indium in tin have been measured between about 0.4 and 4. 2 oK. All of the alloys lie within the solid solubility limit of indium in tin. Measurements were made in an adiabatic calorimeter cooled by a He 3 refrigerator, with the specimens magnetically quenched from the superconducting state. Additional cooling of some specimens was possible by adiabatic magnetization to achieve temperatures as low as 0.24 o K. The results for pure tin are compared with recent data for the temperature coefficient of the norITlal electronic specific heat, tf , and the Debye temperature, r:; . The results for the alloys are interpreted in terms of the variation in '( and &, and comparisons are made with recent determinations of the variations of (f and a with increasing indium concentration. While the variation of e is in reasonable agreement with reported values, the variation of --( with increasing indium content is positive, in disagreement with previously reported data. The results are also discussed in the light of the theories of Markowitz and Kadanoff and of Ginsberg on the variation of the critical temperatures of superconductors with alloying.","abstract_html":"The normal state specific heats of pure tin and alloys consisting of 0.5, 1, 2, 4, and 6 atomic percent indium in tin have been measured between about 0.4 and 4. 2 oK. All of the alloys lie within the solid solubility limit of indium in tin. Measurements were made in an adiabatic calorimeter cooled by a He 3 refrigerator, with the specimens magnetically quenched from the superconducting state. Additional cooling of some specimens was possible by adiabatic magnetization to achieve temperatures as low as 0.24 o K. The results for pure tin are compared with recent data for the temperature coefficient of the norITlal electronic specific heat, tf , and the Debye temperature, r:; . The results for the alloys are interpreted in terms of the variation in '( and &, and comparisons are made with recent determinations of the variations of (f and a with increasing indium concentration. While the variation of e is in reasonable agreement with reported values, the variation of --( with increasing indium content is positive, in disagreement with previously reported data. The results are also discussed in the light of the theories of Markowitz and Kadanoff and of Ginsberg on the variation of the critical temperatures of superconductors with alloying.","abstract_has_math":false,"creators":["Wilkes, William Roy"],"institution":null,"degree_name":"Ph.D.","degree_level":"Dissertation","degree_discipline":"Physics","degree_department":null,"school":null,"contributors":["Mapother, D.E."],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2011,"date_issued":"2011-05-31T17:24:23Z","date_published":"2011-05-31T17:24:23Z","updated_at":"2026-07-22T22:25:24Z","subjects":["low temperature specific heat","tin","tin alloys","adiabatic calorimeter"],"languages":["en"],"rights":["1966 William Roy Wilkes"],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["6120825"],"render_values":[{"text":"6120825","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/2142/25079","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Mapother, D.E."]},{"key":"dc:creator","label":"Author","values":["Wilkes, William Roy"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2011-05-31T17:24:23Z","10000-01-01","1966"]},{"key":"dc:type","label":"Dc Type","values":["Dissertation / Thesis","text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Physics"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Dissertation"]},{"key":"thesis:degree_name","label":"Degree Name","values":["Ph.D."]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["low temperature specific heat","tin","tin alloys","adiabatic calorimeter"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en"]},{"key":"dc:rights","label":"Dc Rights","values":["1966 William Roy Wilkes"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["6120825","http://hdl.handle.net/2142/25079"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["The normal state specific heats of pure tin and alloys consisting of 0.5, 1, 2, 4, and 6 atomic percent indium in tin have been measured between about 0.4 and 4. 2 oK. All of the alloys lie within the solid solubility limit of indium in tin. Measurements were made in an adiabatic calorimeter cooled by a He 3 refrigerator, with the specimens magnetically quenched from the superconducting state. Additional cooling of some specimens was possible by adiabatic magnetization to achieve temperatures as low as 0.24 o K. The results for pure tin are compared with recent data for the temperature coefficient of the norITlal electronic specific heat, tf , and the Debye temperature, r:; . The results for the alloys are interpreted in terms of the variation in '( and &, and comparisons are made with recent determinations of the variations of (f and a with increasing indium concentration. While the variation of e is in reasonable agreement with reported values, the variation of --( with increasing indium content is positive, in disagreement with previously reported data. The results are also discussed in the light of the theories of Markowitz and Kadanoff and of Ginsberg on the variation of the critical temperatures of superconductors with alloying.","Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-05-31T17:24:23Z No. of bitstreams: 1 1966_wilkes.pdf: 3689548 bytes, checksum: 8619783f00acdc29247b72b2caeec3ff (MD5)","Made available in DSpace on 2011-05-31T17:24:23Z (GMT). No. of bitstreams: 1 1966_wilkes.pdf: 3689548 bytes, checksum: 8619783f00acdc29247b72b2caeec3ff (MD5) Previous issue date: 1966","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Carolyn Mead (cmead2@illinois.edu) on 2011-05-31T17:24:23Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:14:32-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis","Thesis","U of I Only"]},{"key":"dc:title","label":"Title","values":["Low temperature specific heat of Sn and Sn-In alloys"]}]}],"canonical_facts":{"dc:contributor":["Mapother, D.E."],"dc:creator":["Wilkes, William Roy"],"dc:date":["2011-05-31T17:24:23Z","10000-01-01","1966"],"dc:description":["The normal state specific heats of pure tin and alloys consisting of 0.5, 1, 2, 4, and 6 atomic percent indium in tin have been measured between about 0.4 and 4. 2 oK. All of the alloys lie within the solid solubility limit of indium in tin. Measurements were made in an adiabatic calorimeter cooled by a He 3 refrigerator, with the specimens magnetically quenched from the superconducting state. Additional cooling of some specimens was possible by adiabatic magnetization to achieve temperatures as low as 0.24 o K. The results for pure tin are compared with recent data for the temperature coefficient of the norITlal electronic specific heat, tf , and the Debye temperature, r:; . The results for the alloys are interpreted in terms of the variation in '( and &, and comparisons are made with recent determinations of the variations of (f and a with increasing indium concentration. While the variation of e is in reasonable agreement with reported values, the variation of --( with increasing indium content is positive, in disagreement with previously reported data. The results are also discussed in the light of the theories of Markowitz and Kadanoff and of Ginsberg on the variation of the critical temperatures of superconductors with alloying.","Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-05-31T17:24:23Z No. of bitstreams: 1 1966_wilkes.pdf: 3689548 bytes, checksum: 8619783f00acdc29247b72b2caeec3ff (MD5)","Made available in DSpace on 2011-05-31T17:24:23Z (GMT). No. of bitstreams: 1 1966_wilkes.pdf: 3689548 bytes, checksum: 8619783f00acdc29247b72b2caeec3ff (MD5) Previous issue date: 1966","Item marked as restricted to the 'UIUC Users [automated]' Group (id=2) by Carolyn Mead (cmead2@illinois.edu) on 2011-05-31T17:24:23Z Item is restricted indefinitely.","Restriction data tranferred 2014-07-01T11:14:32-05:00 Original Data Group with Access UIUC Users [automated] Release Date: none Reason: Thesis","Thesis","U of I Only"],"dc:identifier":["6120825","http://hdl.handle.net/2142/25079"],"dc:language":["en"],"dc:rights":["1966 William Roy Wilkes"],"dc:subject":["low temperature specific heat","tin","tin alloys","adiabatic calorimeter"],"dc:title":["Low temperature specific heat of Sn and Sn-In alloys"],"dc:type":["Dissertation / Thesis","text"],"thesis:degree_discipline":["Physics"],"thesis:degree_level":["Dissertation"],"thesis:degree_name":["Ph.D."]},"updated_at":"2026-07-22T22:25:24Z"}