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Volumn 51, Issue 4, 1995, Pages 2440-2445

Order-to-disorder phase-transition study of Pb on Ge(111)

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EID: 2342664763     PISSN: 01631829     EISSN: None     Source Type: Journal    
DOI: 10.1103/PhysRevB.51.2440     Document Type: Article
Times cited : (16)

References (36)
  • 1
    • 84927334523 scopus 로고    scopus 로고
    • Max Hansen, Constitution of Binary Alloys (McGraw-Hill, New York, 1958).
  • 22
    • 84927334522 scopus 로고    scopus 로고
    • and (private communication).
  • 23
    • 84927334521 scopus 로고    scopus 로고
    • F. Grey, Ph.D. thesis, Copenhagen University, 1988.
  • 26
    • 84927334520 scopus 로고    scopus 로고
    • and (private communication).
  • 31
    • 84927334519 scopus 로고    scopus 로고
    • Our standing-wave results (not shown) for the (111¯) measurement of this dilute phase were F = 0.89 +- 0.02, showing a high degree of in-plane order, and P = 0.39 +- 0.01. Since these Pb atoms are known to site in a T4 site, it is easy to verify that P111= 3P111¯ - 1/2 = 0.67 +- 0.01 and therefore, the perpendicular distance between the Pd adatoms and the bulklike Ge atoms in the top of the bilayers is 1.78 +- 0.03~ A ang. This agrees very well with the value of 1.72 +- 0.13~ A ang determined from x-ray diffraction.8 These results, within uncertainty, were found to be unchanged in going from RT to 200 °C. The Pb atoms thus remain in their RT positions and this is also consistent with x-ray diffraction results (Ref. 11).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.