Observed effects of a changing step-edge density on thin-film growth dynamics

被引：24

作者：

Fleet, A ^{[1
]}

Dale, D

Suzuki, Y

Brock, JD

机构：

[1] Cornell Univ, Sch Appl & Engn Phys, Ithaca, NY 14853 USA

[2] Cornell Univ, Cornell Ctr Mat Res, Ithaca, NY 14853 USA

[3] Cornell Univ, Dept Mat Sci & Engn, Ithaca, NY 14853 USA

[4] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 94卷 / 03期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.94.036102

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We grew SrTiO3 on SrTiO3(001) by pulsed laser deposition, while observing x-ray diffraction at the (00 1/2) position. The drop DeltaI in the x-ray intensity following a laser pulse contains information about plume-surface interactions. Kinematic theory predicts DeltaI/I=-4sigma(1-sigma), so that DeltaI/I depends only on the amount of deposited material sigma. In contrast, we observed experimentally that \DeltaI/I|<4sigma(1-sigma) and that DeltaI/I depends on the phase of x-ray growth oscillations. The combined results suggest a fast smoothing mechanism that depends on surface step-edge density.

引用

页数：4

共 27 条

[1] ORIGIN OF RHEED INTENSITY OSCILLATIONS DURING THE GROWTH OF (Y,DY)BA2CU3O7-X THIN-FILMS [J].

ACHUTHARAMAN, VS ;

CHANDRASEKHAR, N ;

VALLS, OT ;

GOLDMAN, AM .

PHYSICAL REVIEW B, 1994, 50 (11) :8122-8125

[2]

Barabasi A.-L., 1995, FRACTAL CONCEPTS SUR, DOI [10.1017/CBO9780511599798, DOI 10.1017/CBO9780511599798]

[3]

BLANK GD, 1999, APPL PHYS A, V69, pS17

[4] THE GROWTH OF CRYSTALS AND THE EQUILIBRIUM STRUCTURE OF THEIR SURFACES [J].

BURTON, WK ;

CABRERA, N ;

FRANK, FC .

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1951, 243 (866) :299-358

[5]

Chrisey D. B., 1994, PULSED LASER DEPOSIT

[6] BIRTH DEATH MODELS OF EPITAXY .1. DIFFRACTION OSCILLATIONS FROM LOW INDEX SURFACES [J].

COHEN, PI ;

PETRICH, GS ;

PUKITE, PR ;

WHALEY, GJ ;

ARROTT, AS .

SURFACE SCIENCE, 1989, 216 (1-2) :222-248

[7] Time-resolved study of SrTiO3 homoepitaxial pulsed-laser deposition using surface x-ray diffraction [J].

Eres, G ;

Tischler, JZ ;

Yoon, M ;

Larson, BC ;

Rouleau, CM ;

Lowndes, DH ;

Zschack, P .

APPLIED PHYSICS LETTERS, 2002, 80 (18) :3379-3381

[8] Metal-insulator transitions [J].

Imada, M ;

Fujimori, A ;

Tokura, Y .

REVIEWS OF MODERN PHYSICS, 1998, 70 (04) :1039-1263

[9] Simulations of energetic beam deposition: From picoseconds to seconds [J].

Jacobsen, J ;

Cooper, BH ;

Sethna, JP .

PHYSICAL REVIEW B, 1998, 58 (23) :15847-15865

[10] SrTiO3(001)-c(6x2): A long-range, atomically ordered surface stable in oxygen and ambient air [J].

Jiang, QD ;

Zegenhagen, J .

SURFACE SCIENCE, 1996, 367 (02) :L42-L46

← 1 2 3 →