Epitaxial Growth of Ferroelectric Thin Films on GaAs with MgO Buffer Layers by Pulsed Laser Deposition

1991 ◽  
Vol 243 ◽  
Author(s):  
K. Nashimoto ◽  
D. K. Fork ◽  
F. A. Ponce ◽  
T. H. Geballe

AbstractEpitaxial growth of ferroelectric thin films on GaAs (100) by pulsed laser deposition was examined for integrated electro-optic device applications. To promote epitaxy of ferroelectrics and prevent interdiffusion, we have deposited several types of buffer layers. CeO2 reacted strongly with GaAs. Although Y203 9% stabilized-ZrO2 films showed epitaxial growth, YSZ reacted with GaAs at 780°C. MgO grew epitaxially and was stable even at 780°C. HRTEM observation showed a sharp interface between MgO and GaAs. BaTiO3 and SrTiO3 deposited on MgO/GaAs structures showed epitaxial growth. In-plane orientation was BaTiO3 [100 // MgO [100] // GaAs [100]. Epitaxial BaTiO3 films were c-axis oriented tetragonal phase and showed ferroelectric hysteresis.

1999 ◽  
Author(s):  
Totka D. Kabadjova ◽  
Peter A. Atanasov ◽  
Rumen I. Tomov ◽  
Alexander N. Zherikhin ◽  
Dmitre G. Ouzounov

2001 ◽  
Vol 11 (PR11) ◽  
pp. Pr11-133-Pr11-137
Author(s):  
J. R. Duclère ◽  
M. Guilloux-Viry ◽  
A. Perrin ◽  
A. Dauscher ◽  
S. Weber ◽  
...  

2003 ◽  
Vol 83 (26) ◽  
pp. 5500-5502 ◽  
Author(s):  
J.-R. Duclère ◽  
M. Guilloux-Viry ◽  
V. Bouquet ◽  
A. Perrin ◽  
E. Cattan ◽  
...  

2002 ◽  
Vol 420-421 ◽  
pp. 107-111 ◽  
Author(s):  
H Kim ◽  
J.S Horwitz ◽  
S.B Qadri ◽  
D.B Chrisey

1999 ◽  
Vol 574 ◽  
Author(s):  
D. Kumar ◽  
K. G. Cho ◽  
Zhang Chen ◽  
V. Craciun ◽  
P. H. Holloway ◽  
...  

AbstractThe growth, structural and cathodoluminescent (CL) properties of europium activated yttrium oxide (Eu:Y2O3) thin films are reported. The Eu:Y2O3 films were grown in-situ using a pulsed laser deposition technique. Our results show that Eu:Y2O3 films can grow epitaxially on (100) LaAlO3 substrates under optimized deposition parameters. The epitaxial growth of Eu:Y2O3 films on LaAlO3, which has a lattice mismatch of ∼ 60 %, is explained by matching of the atom positions in the lattices of the film and the substrate after a rotation. CL data from these films are consistent with highly crystalline Eu:Y2O3 films with an intense CL emission at 611 nm.


1995 ◽  
Vol 77 (9) ◽  
pp. 4724-4728 ◽  
Author(s):  
R. D. Vispute ◽  
J. Narayan ◽  
Hong Wu ◽  
K. Jagannadham

2000 ◽  
Vol 655 ◽  
Author(s):  
Masanori Okuyama ◽  
Toshiyuki Nakaiso ◽  
Minoru Noda

AbstractSr2(Ta1划x, Nbx)2O7(STN) ferroelectric thin films have been prepared on SiO2/Si(100) substrates by the pulsed laser deposition (PLD) method. Preferential (110) and (151)-oriented STN thin films are deposited at a low temperature of 600°C in N2O ambient gas at 0.08 Torr. A counterclockwise C-V hysteresis was observed in the metal-ferroelectric-insulator-semiconductor (MFIS) structure using Sr2(Ta0.7, Nb0.3)2O7 on SiO2/Si deposited at 600°C. Memory window in the C-V curve spreads symmetrically towards both positive and negative directions when applied voltage increases and the window does not change in sweep rates ranging from 0.1 to 4.0×103 V/s. The C-V curve of the MFIS structure does not degrade after 1010 cycles of polarization reversal. The gate retention time is about 3.0×103 sec when the voltages and time of write pulse are ±15V and 1.0 sec, respectively, and hold bias was -0.5 V.


2006 ◽  
Vol 252 (13) ◽  
pp. 4553-4557 ◽  
Author(s):  
N. Scarisoreanu ◽  
M. Dinescu ◽  
F. Craciun ◽  
P. Verardi ◽  
A. Moldovan ◽  
...  

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