MECHANISMS OF EPITAXY AND PROPERTIES OF COHERENT THIN FILMS

1997 Fiscal Year Final Research Report Summary

• Project/Area Number: 07044133
• Research Category: Grant-in-Aid for international Scientific Research
• Allocation Type: Single-year Grants
• Section: Joint Research
• Research Field: 表面界面物性
• Research Institution: TOKYO INSTITUTE OF TECHNOLOGY
• Principal Investigator: YAGI Katsumichi TOKYO INSTITUTE OF TECHNOLOGY,PHYSICS DEPARTMENT,PROFESSOR, 理学部, 教授 (90016072)
• Co-Investigator(Kenkyū-buntansha): HORNVON Hoeg ハノーバー大学, 固体物理研究所, 助手 ; HENZLER M. HANNOVER UNIV., INST.S.S.PHYS., PROF., 固体物理研究所, 教授 ; HASEGWA Shuzi TOKYO UNIV., DEPT.PHYS., A.PROF., 大学院・理学系研究科, 助教授 (00228446) ; INO Shozo UTSUNOMIYA UNIV.FACLGY OF ENG., PROF., 工学部, 教授 (70005867) ; TANISHIRO Yasumasa TOKYO INST.TECH., PHYS.DEPT., RA, 理学部, 助手 (40143648) ; HORN V.HOEGEN M. HANNOVER UNIV., INST.S.S.PHYS., RA
• Project Period (FY): 1995 – 1997
• Keywords: silicon surfaces / phase transition / adsorbate strcuctures / high index surfaces / SPA-LEED / REM / surface conductivity / facet plane

Research Abstract

1) REM study revealed successive Au adsorption induced structural phase transitions and adatom densities in the 1 x 1 pahse and facet formation on vicinal Si (111) surfaces.
2) Extensoion of above work fo the studies of facetting on [110] zone found various facet planes and their roughening phase transitions and their coverage dependences.
3) SPA-LEED and REM studies of Au adsorbed vicinal (001) surface were carried out as a cooperative research works and they revealed dynamics of facet formation
4) We revealed that effective charge of adatom Si on Si (111) surface can be reversed from positive to negative by adosrption of Au
5) ROO<21>x ROO<21> structures were commonly observed on Si (111) ROO<3>x ROO<3>Ag by deposition of small amounts of Ag, Au and Cu.
6) Standing waves on semiconductor surfaces were firstly observed by STM in case of Si (111) ROO<3>x ROO<3>Ag at 4K.
7) It was found that an incommensulate adsorbate structure formed by Pb adsroption on Si (111) transforms to 200K to a 7x ROO<3> structure.
8) Adatoms on quenched clean Si (111) surfaces have a reversible structural phase transition at around 230ﾟC between the c2x8 and disordered 1x1 strcutures.
9) C60 molecules showed epitaxial relations on metal adsorbed Si surfaces depending on the superlattices induced by metals.
10) Systematic studies were carried out by SPA-LEED for studies of formation of various types of defects in cases of various adsorption systems and epitaxy of CaF_2 were studied.
11) From a conductivity measurements at 4k for systems of Ag/Si (111) a metal-insulator transition at 2 mnolayr level was observed.

Research Products

• [Publications] H.Minoda, S.Sakamoto and K.Yagi: "In-situ REM observation of surfactant-mediated epitaxy;growth of Ge on Si(111)surfaces mediated by Bi" Surf.Sci.372. 1-8 (1997)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] H.Minoda and K.Yagi: "REM stidies of surfactant-mediated epitaxy" in Advances in the Understanding of crystal Growth Mechanisms. 293-307 (1997)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] K.Yagi, K.Aoki, H.Tamura, Y.Tanishiro, H.Tamura and T.Suzuki: "REM studies of surface dynamics on Si surface" Proc.EMS. 579-580 (1997)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] T.Suzuki and K.Yagi: "REM study of the Si(111)vicinal surface" Surface Review and Letters. 3. 543-549 (1997)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] H.Tamura, Y.Tanishiro, H.Minoda and K.Yagi: "Competing effects of current and strain on step structures on Si(001)2×1 studied by REM" Surface Sci.382. 310-319 (1997)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] H.Minoda, K.Yagi, E.-J.M-zu Heringdorf, A.Meier, D.Kanler and M.Hornvon Hoegen: "Gold-induced faceting on vicinal Si(001)surfaces:Part I(SPA-LEED study)" Phys.Rev.B submitted.
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] H.Minoda, K.Yagi, M.Hornvon Hoegen and E.-J.M-zu Heringdorf: "Gold-induced faceting on vicinal Si(001)surfaces:Part II(UHV REM study)" Phys.Rev.B.submitted.
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] K.Aoki, T.Suzuki, H.Minoda, Y.Tanishiro and K.Yagi: "Au Adsorption Induced Faceting and Phase Transitions of Facet Planes on the Si〔110〕Zone Studied by UHV-REM" Surface Sci.(in press). (1998)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] K.Aoki, H.Minoda, Y.Tanishiro and K.Yagi: "REM studies of Adsorption-Induced Phase Transitions and Faceting in the Si(111)-Au System" Surface Review and Letters. (in press). (1998)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] Y.Nakajima, S.Takeda, T.Nagano and S.Hasegawa: "Surface electrical conduction due to carrier doping into a surface-state band on Si(111)-√3×√3-Ag" Physical Review B. 56. 6782-6787 (1997)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] Z.H.Zhang, S.Hasegawa and S.Ino: "RHEED intensity oscillation during epitaxial growth of Agon Si(111)surfaces at low temperature" Physical Review B. 55. 9983-9989 (1997)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] S.Hasegawa, X.Tong, C-S, Jiang, Y.Nakajima, T.Nagao: "Electrical conduction via surface-state bonds" Surface Science. 386. 322-327 (1997)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] Y.Nakajima, C.Voges, T.Nagao, S.Hasegawa, G.Klos, H.Pfnur: "Critical scattering at the order-disorder phase transition of Si(111)-√3×√3R30ﾟ-Ausurface" Physical Review B. 55. 8129-8135 (1997)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] C.-S.Jiang, X.Tong, S.Hasegawa, and S.Ito: "Electrical conduction through the surface-state band of the Si(111)-√21×√21-(Ag+Au)structure" Surface Science. 376. 69-76 (1997)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] T.Okuda, H.Daimon, S.Suga, Y.Tezuka, S.Ino: "Surface electronic structure of ordered alkali and noble metal overlayers on Si (111)" Applid Surface Science. 121. 89-97 (1997)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] S.Hasegawa, C.-S.Jiang, X.Tong, Y.Nakajima: "Electrical functional prorperties of surface superstructures on semiconductors" Advances in Colloid and Interface Science. 71/72. 125-145 (1997)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] X.Tong, C.-S.Jiang, and S.Hasegawa: "Electronic Structure of the Si(111)-√21×√21-(Ag+Au)surface" Physical Rview B. 57. (1998)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] M.Henzler: "Growth of ep'taxial monolayers" Surf.Sci.357. 809-819 (1996)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] M.Henzler: "Capabilities of Defect Analysis with LEED" Surf.Reviews and Letters. 4. 489-500 (1997)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] B.M.ler, Th.Schmidt and M.Henzler: "Growth and melting of a Pbmonolayer on Cu(111)" Surf.Sci.376. 123-132 (1997)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] J.Wollschloger and A.Meier: "Film and Interface Morphology of CaF_2 Grown Si(111)at Low Temperature" J.Appl.Phys.79. 7373-7375 (1996)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] H.Pietsch, A.Klust, A.Meier, and J.Wollschloger: "Growth Instabilities of CaF_2 Adlayers Deposited at High Temperature on Si(111)" Surf.Sci.377-379 909-913
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] H.Minoda and K.Yagi: "Advances in the Understanding of Crystal Growth" Elsevier Science B.V., 15 (1997)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] 八木 克道: "表面の構造(表面科学シリーズ(3))" 丸善, 80 (1998)
  • Description: 「研究成果報告書概要(和文)」より
• [Publications] H.Minoda, S.Sakamoto and K.Yagi: "In-situ REM observations of surfactant-mediated epitasy ; growht of Ge on Si (111) surfaces mediated by Bi" Surf. Sci. 372. 1-8 (1997)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] K.Yagi, K.Aoki, H.Minoda, Y.Tanishiro, H.Tamura and T.Szuki: "REM studies of surface dynamics on Si surfaces" Proc. EMS. 579-580 (1997)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] T.Suzuki and K.Yagi: "REM study of the Si (111) vicinal Surface." Surface Review and Letters. 3. 543-549 (1997)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] H.Tamura, Y.Tanishiro, H.Minoda and K.Yagi: "Competing effects of current and strain on step structures on Si (001) 2x1 studied by REM" Surface Sci.382. 310-319 (1997)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] A.V.Latyshev, H.Minida, Y.Tanishiro and K..Yagi: "Adatom effective charge I morphology evolution on Si (111) surface, ." Appl. Surfce Sci.(in press). (1998)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] H.Minoda, K.Yagi, E.-J.M-zu Heringdorf, A..Meier, D.Kahler and M.Horn von Hoegen: "Gold-induced faceting on vicinal Si (001) surfaces : Part I (SPA-LEED sutudy)" Phys.Rev.B. (submitted).
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] H.Minoda, K.Yagi, M., Horn von Hoegen and E.-J.M-zu Heringdorf: "Gold-induced faceting on vicinal Si (001) surfaces : Part II (UHV REM sutudy)" Phys.Rev.B. (submitted).
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] C.-S.Jiang, X.Tong, S.Hasegawa, and S.Ino: "Elctrical conduction through the surface-state band of the Si (111)-ROO<21>x ROO<21>-(Ag+Au) sturucture." Surface.Sci.376. 69-76 (1997)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] T.Hanada, H.Daimon, S.Nagao, S.Ino, S.Suga and Y.Murata: "Photoelectron diffraction of the Si (111) ROO<3>x ROO<3>-Ga Surface." Phys.Rev B. 55. 16420-16425 (1997)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] S.Hasegawa, X.Tong, C.-S.Jiang, Y.Nakajima and T.Nagano: "Electrical conduction via surgace-state band." Surface Sci.386. 322-327 (1997)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] Z.H.Zhang, S.Hasegawa, and S.Ino: "RHEED intensity oscillation during epitaxial growth of Ag on Si (111) surfaces at low temperature." Phys.Rev.B. 55. 9983-9989 (1997)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] Y.Nakajima, S.Takeda, T.Nagano, S.Hasegawa, and X.Tong: "Surface electrical conduction due to carrier doping into a surface-state band on Si (111)-ROO<3>x ROO<3>-Ag." Phys.Rev.B. 56. 6782-6787 (1997)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] T.Nagao, C.Voges, H.Pfunur, M.Henzler, S.Ino and S.Hasegawa: "Diffraction from small antiphase domains ; alphaROO<3>x ROO<3>, betaROO<3>x ROO<3>,6x6 phases of Au adsorbed Si (111)." Appl Surface Sci.(in press). (1998)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] Y.Nakajima, C.Voges, T.Nagao, S.Hasegawa, G.Klos, and H.Pfnur: "Critical scattering at the order-disorder phase transition of Si (111)-ROO<3>*ROO<3>R 30ﾟ -Au surface : A phase transition with particle exchange." Phys.Rev.B. 55. 8129-8135 (1997)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] B.Muller, Th Schmidt and M.Henzler: "Growth and melting of a Pb monolayr on Cu (111)." Surface. Sci.376. 123-132 (1997)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] M.Henzler: "Growth of epitaxial monolayrs." Surface Sci.357. 809-819 (1996)
  • Description: 「研究成果報告書概要(欧文)」より
• [Publications] M.Henzler: "Capabilities of Defect Analysis with LEED" Surf. Reviews and Letters. 4. 489-500 (1997)
  • Description: 「研究成果報告書概要(欧文)」より