Phase and structural characterization of Sr2Nb2O7 and SrNbO3 thin films grown via pulsed laser ablation in O2 or N2 atmospheres

被引：16

作者：

Balasubramaniam, K. R. ^{[1
]}

Cao, Y. ^{[1
]}

Patel, N. ^{[1
]}

Havelia, S. ^{[1
]}

Cox, P. J. ^{[1
]}

Devlin, E. C. ^{[1
]}

Yu, E. P. ^{[1
]}

Close, B. J. ^{[1
]}

Woodward, P. M. ^{[2
]}

Salvador, P. A. ^{[1
]}

机构：

[1] Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA

[2] Ohio State Univ, Dept Chem, Columbus, OH 43210 USA

来源：

JOURNAL OF SOLID STATE CHEMISTRY | 2008年 / 181卷 / 04期

关键词：

niobates; layered perovskites; laser deposition; epitaxy;

D O I：

10.1016/j.jssc.2008.01.007

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The influence of substrate temperature, process gas, deposition pressure, and substrate type on the phase selection, orientation/epitaxy, and growth morphology of thin films in the SrNbOy (y approximate to 3.0 or 3.5) family was investigated. Pulsed laser deposited films (from a Sr2Nb2O7 target) obtained in both oxygen and nitrogen atmospheres upon various substrates were characterized with X-ray diffraction, energy dispersive spectroscopy, atomic force microscopy, and transmission electron microscopy. In oxygen atmospheres, films adopted the (110)-layered perovskite structure of the target. Higher temperatures, lower pressures of oxygen, and use of (110)-oriented SrTiO3 substrates lead to highly crystalline, epitaxial films of Sr2Nb2O7. The use of nitrogen atmospheres resulted in cubic perovskite SrNbO3 formation: epitaxial, textured, or polycrystalline films were obtained depending on the substrate; no nitrogen incorporation could be observed on the anion sublattice. On SrTiO3, the cubic perovskite films followed a cube-on-cube epitaxy and planar defects were observed to occur on the (110) perovskite planes. (C) 2008 Elsevier Inc. All rights reserved.

引用

页码：705 / 714

页数：10

共 35 条

[1]

AKIHIKO K, 2000, J PHYS CHEM B, V105, P571

[2] HIGH-QUALITY C-AXIS ORIENTED SUPERCONDUCTING ND1+XBA2-XCU3O7-D THIN-FILMS DEPOSITED BY THE LASER-ABLATION METHOD [J].

BADAYE, M ;

WANG, F ;

KANKE, Y ;

FUKUSHIMA, K ;

MORISHITA, T .

APPLIED PHYSICS LETTERS, 1995, 66 (16) :2131-2133

[3]

BALASUBRAMANIAN KR, 2004, CERAM T, V162, P59

[4] The perovskite structure - a review of its role in ceramic science and technology [J].

Bhalla, AS ;

Guo, RY ;

Roy, R .

MATERIALS RESEARCH INNOVATIONS, 2000, 4 (01) :3-26

[5] Powder neutron diffraction of SrNbO2N at room temperature and 1.5 K [J].

Ebbinghaus, SG ;

Weidenkaff, A ;

Rachel, A ;

Reller, A .

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 2004, 60 :I91-I93

[6] Chiral surfaces and metal/ceramic heteroepitaxy in the Pt/SrTiO3(621) system [J].

Francis, Andrew J. ;

Koritnik, A. J. ;

Gellman, Andrew ;

Salvador, Paul A. .

SURFACE SCIENCE, 2007, 601 (09) :1930-1936

[7]

Fujimori Y., 1998, ISAF 1998. Proceedings of the Eleventh IEEE International Symposium on Applications of Ferroelectrics (Cat. No.98CH36245), P55, DOI 10.1109/ISAF.1998.786635

[8] LANTHANUM DITITANATE [J].

GASPERIN, M .

ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1975, 31 (AUG15) :2129-2130

[9]

Giocondi JL, 2003, MATER RES SOC SYMP P, V755, P221

[10] Competition between α-axis and c-axis growth in superconducting RBa2Cu3O7-x thin films [J].

Granozio, FM ;

Salluzzo, M ;

di Uccio, US ;

Maggio-Aprile, I ;

Fischer, O .

PHYSICAL REVIEW B, 2000, 61 (01) :756-765

← 1 2 3 4 →