Thermally tuning of the photonic band gap of SiO[sub 2] colloid-crystal infilled with ferroelectric BaTiO[sub 3]

Zhou, Ji; Sun, C. Q.; Pita, K.; Lam, Y. L.; Zhou, Y.; Ng, S. L.; Kam, C. H.; Li, L. T.; Gui, Z. L.
January 2001
Applied Physics Letters;1/29/2001, Vol. 78 Issue 5, p661
Academic Journal
SiO[sub 2] colloid crystal infilled with BaTiO[sub 3] was synthesized by a process of self-assembly in combination of a sol-gel technique. It is found that infilling of the fully crystallized BaTiO[sub 3] into the colloid assembly can enhance the photonic band gap significantly. In the vicinity of the ferroelectric phase transition point of BaTiO[sub 3] (100-150 °C), the photonic band gap of the assembly exhibits a strong temperature dependence. At the Curie point, the band gap has a 20 nm redshift, and the optical transmittance reaches its minimum. Such a temperature-tuning effect in the photonic band gap should be of high interest in device applications. © 2001 American Institute of Physics.


Related Articles

  • Cooperative behavior during ferroelectric transitions in KNO3 powder. Westphal, M. J. // Journal of Applied Physics;9/1/1993, Vol. 74 Issue 5, p3131 

    Presents a study which examined the cooperative behavior during ferroelectric transitions in KNO[sub3] powder. Experimental details; Results; Conclusion.

  • Structure of the Polar (010) Cleavage of a Ferroelectric TGS Crystal from the Atomic—Force Microscopy Data. Belugina, N. V.; Tolstikhina, A. L. // Crystallography Reports;Sep2001, Vol. 46 Issue 5, p850 

    The atomically smooth polar (010) cleavage of a ferroelectric triglycine sulfate (TGS) crystal has been studied by the method of atomic-force microscopy. It is shown that the rounded 0.6-nm-high (deep) protrusions and pits with nanometer lateral dimensions revealed on the surfaces of TGS...

  • Visualization of ferroelectric domains in bulk single crystals. Soergel, E. // Applied Physics B: Lasers & Optics;Oct2005, Vol. 81 Issue 6, p729 

    In recent years ferroelectric domain patterning has become a popular topic of physical research because it enables photonic applications as well as data storage. For generation of tailored domain structures and for further understanding of ferroelectricity, a visualization of the domain patterns...

  • Photonic-crystal GaN light-emitting diodes with tailored guided modes distribution. David, Aurélien; Tetsuo Fujii; Sharma, Rajat; McGroddy, Kelly; Nakamura, Shuji; DenBaars, Steven P.; Hu, Evelyn L.; Weisbuch, Claude; Benisty, Henri // Applied Physics Letters;2/6/2006, Vol. 88 Issue 6, p061124 

    We relate the currently limited efficiency of photonic crystal (PhC)-assisted gallium nitride light-emitting diodes (LEDs) to the existence of unextracted guided modes. To remedy this, we introduce epitaxial structures which modify the distribution of guided modes. LEDs are fabricated according...

  • Ferroelectric domain reversal in congruent LiTaO[sub 3] crystals at elevated temperatures. Battle, Charles C.; Kim, Sungwon; Sungwon Kim; Gopalan, Venkatraman; Barkocy, Kendra; Gupta, Mool C.; Jia, Q. X.; Mitchell, T. E. // Applied Physics Letters;4/24/2000, Vol. 76 Issue 17 

    We report a four-times decrease in the electric fields for 180° domain reversal in congruent LiTaO[sub 3] crystals with an increase in temperature from 22 to 250 °C. This is accompanied by a substantial broadening of the field range over which domain reversal takes place, by an order of...

  • Synthesis and physical properties of the ferroelectric magnet SrBi3Nb2FeO12. Ivanov, O.; Skripchenko, E.; Chumakov, A. // Physics of the Solid State;Jun2006, Vol. 48 Issue 6, p1043 

    The dielectric, elastic, and inelastic properties of a ceramic ferroelectric SrBi3Nb2FeO12 are studied over the temperature range 300–900 K. The observed anomalies in the temperature dependences of the permitivity, dielectric loss, shear modulus, and internal friction indicate the...

  • First-principles effective Hamiltonian for ferroelectric polarization inBaTiO3/SrTiO3 superlattices. Lee, Jun Hee; Waghmare, Umesh V.; Yu, Jaejun // Journal of Applied Physics;Jun2008, Vol. 103 Issue 12, p124106 

    We present an effective Hamiltonian for the description of ferroelectric polarizations in perovskite oxide superlattices. To understand the ferroelectric behavior of (BaTiO3)n/(SrTiO3)m superlattices, we constrained the local distortion modes along the c direction only and set up the effective...

  • Multiferroics: Towards a magnetoelectric memory. Bibes, Manuel; Barthélémy, Agnés // Nature Materials;Jun2008, Vol. 7 Issue 6, p425 

    The article focuses ion multiferroics which represent an appealing class of multifunctional materials that simultaneously exhibit several ferroic orders such as ferroelectricity and antiferromagnetism. It is stated that the electrical control of magnetization via the magnetoelectric coupling...

  • Improved ferroelectricity and ferromagnetism of Eu-modified BiFeO-BaTiO lead-free multiferroic ceramics. Tian, Mijie; Zhou, Lin; Zou, Xiao; Zheng, Qiaoji; Luo, Lingling; Jiang, Na; Lin, Dunmin // Journal of Materials Science: Materials in Electronics;Nov2015, Vol. 26 Issue 11, p8840 

    Multiferroic ceramics of 0.75BiEuFeO-0.25BaTiO + 1 mol% MnO were synthesized by a conventional solid state reaction method and the effects of Eu doping on microstructure, ferroelectric, ferromagnetic and piezoelectric properties of the ceramics were investigated. All the ceramics exhibit a pure...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics