{"title":"氦晶体-超流体界面上的粗化转变","authors":"A.V. Babkin, K.O. Keshishev, D.B. Kopeliovich, A.Ya. Parshin","doi":"10.1016/0378-5963(85)90203-X","DOIUrl":null,"url":null,"abstract":"<div><p>We have studied the equilibrium shapes of large <sup>4</sup>He crystals at two different roughening transitions (<em>T</em><sub>R1</sub> = 1.2 K, <em>T</em><sub>R2</sub> = 0.9 K) by a simple optical technique. The method used provides the temperature and angular dependences of the surface stiffness. The measured surface stiffness appears to be constant in the close vicinities of the roughening transitions (|<em>T</em>−<em>T</em><sub>R</sub>| ∼ 0.001−0.05<em>T</em><sub>R</sub>, <em>ϕ</em> ∼ 0.005−0.1), in strong disagreement with two current theories, viz., the phenomenological “mean field theory” and the lattice model calculations.</p></div>","PeriodicalId":100105,"journal":{"name":"Applications of Surface Science","volume":"22 ","pages":"Pages 696-704"},"PeriodicalIF":0.0000,"publicationDate":"1985-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0378-5963(85)90203-X","citationCount":"3","resultStr":"{\"title\":\"Roughening transitions on the helium crystal-superfluid interface\",\"authors\":\"A.V. Babkin, K.O. Keshishev, D.B. Kopeliovich, A.Ya. Parshin\",\"doi\":\"10.1016/0378-5963(85)90203-X\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>We have studied the equilibrium shapes of large <sup>4</sup>He crystals at two different roughening transitions (<em>T</em><sub>R1</sub> = 1.2 K, <em>T</em><sub>R2</sub> = 0.9 K) by a simple optical technique. The method used provides the temperature and angular dependences of the surface stiffness. The measured surface stiffness appears to be constant in the close vicinities of the roughening transitions (|<em>T</em>−<em>T</em><sub>R</sub>| ∼ 0.001−0.05<em>T</em><sub>R</sub>, <em>ϕ</em> ∼ 0.005−0.1), in strong disagreement with two current theories, viz., the phenomenological “mean field theory” and the lattice model calculations.</p></div>\",\"PeriodicalId\":100105,\"journal\":{\"name\":\"Applications of Surface Science\",\"volume\":\"22 \",\"pages\":\"Pages 696-704\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1985-05-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1016/0378-5963(85)90203-X\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applications of Surface Science\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/037859638590203X\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applications of Surface Science","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/037859638590203X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Roughening transitions on the helium crystal-superfluid interface
We have studied the equilibrium shapes of large 4He crystals at two different roughening transitions (TR1 = 1.2 K, TR2 = 0.9 K) by a simple optical technique. The method used provides the temperature and angular dependences of the surface stiffness. The measured surface stiffness appears to be constant in the close vicinities of the roughening transitions (|T−TR| ∼ 0.001−0.05TR, ϕ ∼ 0.005−0.1), in strong disagreement with two current theories, viz., the phenomenological “mean field theory” and the lattice model calculations.
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