摘要:
A method of producing a magnetic garnet single crystal film formation substrate 2 for growing a magnetic garnet single crystal film by liquid phase epitaxial growth is provided. First, a base substrate 10 composed of a garnet-based single crystal being unstable with a flux used for the liquid phase epitaxial growth is formed. Next, a buffer layer 11 composed of a garnet-based single crystal thin film formed at least on a crystal growing surface of said base substrate 10 and being stable with the flux is formed. When forming the buffer layer 11 on the base substrate 10, it is formed by a thin film formation method, such as sputtering, without heating the substrate 10 in a positive manner.
摘要:
A magnetic garnet single crystal film formation substrate 2 for growing a thick magnetic garnet single crystal film, wherein crystal defects, warps, cracks and flaking, etc. are not caused, by liquid phase epitaxial growth is provided. The substrate 2 comprises a base substrate 10 composed of a garnet-based single crystal being unstable with a flux used for the liquid phase epitaxial growth; a buffer layer 11a composed of a garnet-based single crystal thin film formed on a crystal growing surface 10a of said base substrate 10 and being stable with said flux; and a protective layer 11b formed at least on side surfaces 10b of said base substrate 10 crossing with said crystal growing surface of said base substrate 10 and being stable with said flux. By using the substrate, a high quality magnetic garnet single crystal film can be produced. The magnetic garnet single crystal film is used as an optical element, such as a Faraday element, used for an optical isolator, optical circulator and magneto-optical sensor, etc.
摘要:
An interior tire power generation apparatus includes a piezoelectric section having an inorganic piezoelectric body of a perovskite type oxide represented by General Formula (PX) below; a pair of electrodes for extracting an electric charge generated in the piezoelectric section when strained by an external force exerted on the tire; and an energy storage unit for storing the extracted electric charge. (Bix, A1-x) (By, C1-y)O3 (PX) where, A is an A-site element, other than Pb, with an average ionic valence of 2, B is a B-site element with an average ionic valence of 3, C is a B-site element with an average ionic valence of greater than 3, and each of A, B, and C is one or a plurality of types of metal elements. O is oxygen. B and C are of different compositions. 0.6≦x≦1.0, x-0.2≦y≦x.
摘要翻译:一种内胎发电装置,具有压电部件,具有由下述通式(PX)表示的钙钛矿型氧化物的无机压电体; 一对电极,用于当由于施加在轮胎上的外力而产生的压电部分产生的电荷; 以及用于存储所提取的电荷的能量存储单元。 (Bix,A1-x)(By-C1-y)O3(PX)其中,A是除Pb以外的平均离子价为2的A位元素,B是具有平均值的B位元素 离子价为3,C为平均离子价大于3的B位元素,A,B和C分别为一种或多种金属元素。 O是氧气。 B和C具有不同的组成。 0.6 @ x @ 1.0,x-0.2 @ y @ x。
摘要:
A process for producing a piezoelectric oxide having a composition (A, B, C)(D, E, F)O3, where each of A, B, C, D, E, and F represents one or more metal elements. The composition is determined so as to satisfy the conditions (1), (2), (3), and (4), 0.98≦TF(P)≦1.01, (1) TF(ADO3)>1.0, (2) TF(BEO3)
摘要:
A piezoelectric device which includes a piezoelectric body having piezoelectricity and a pair of electrodes for applying an electric field to the piezoelectric body in a predetermined direction in which a piezoelectric strain constant d33 (pm/V) and a relative pemittivity ε33 of the piezoelectric body satisfy Formulae (1) and (2) below. This makes the piezoelectric device excellent both in transmission and reception capabilities and appropriate for use as a piezoelectric actuator, a sensor, an ultrasonic sensor, or a power generating device. 100 12√ε33 (2).
摘要:
A process for producing a piezoelectric oxide having a composition (Ba, Bi, A)(Ti, Fe, M)O3, where each of A and M represents one or more metal elements. The composition is determined so as to satisfy the conditions (1) and (2), 0.98≦TF(P)≦1.02, (1) TF(BiFeO3)
摘要:
A process for producing a perovskite oxide having a composition expressed by the compositional formulas A(B, C)O3, and determined so as to satisfy the conditions (1), (2), and (3), 0.98 1.0, and (2) TF(ACO3)
摘要:
A perovskite-oxide lamination constituted by a substrate and one or tore first films of a first oxide of a perovskite type and one or more second films of a second oxide which are alternately formed over the substrate. The first oxide has a composition expressed as ABO3, the second oxide has a composition expressed as CDO3, each of A and C represents one or more A-site elements which are one or more metal elements, each of B and D represents one or more B-site elements which are one or more metal elements, O represents oxygen, and the second oxide is unable to be formed to have a perovskite crystal structure at normal pressure without a thickness limitation. The one or more first films and the one or more second films may contain inevitable impurities.
摘要:
A ferroelectric oxide structure includes a substrate and a ferroelectric thin-film deposited on the substrate. The ferroelectric thin-film has a thickness of greater than or equal to 200 nm and a tetragonal crystal system. The ferroelectric thin-film has (100) single-orientation crystal orientation.
摘要:
A multi-layered unit according to the present invention includes a support substrate formed of fused quartz, an electrode layer formed on the support substrate and formed of a conductive material, a buffer layer formed on the electrode layer and formed of a dielectric material containing a bismuth layer structured compound having a composition represented by Bi4Ti3O12 and having an excellent orientation characteristic so that the bismuth layer structured compound is oriented in the c axis direction, and a dielectric layer formed on the buffer layer and formed of a dielectric material containing a bismuth layer structured compound having a composition represented by SrBi4Ti4O15 and having an excellent orientation characteristic so that the bismuth layer structured compound is oriented in the c axis direction. Since the thus constituted multi-layered unit includes the dielectric layer containing the bismuth layer structured compound oriented in the c axis direction, in the case of, for example, providing an upper electrode on the dielectric layer to form a thin film capacitor and applying a voltage between the electrode layer and the upper electrode, the direction of the electric field substantially coincides with the c axis of the bismuth layer structured compound contained in the dielectric layer. As a result, since the ferroelectric property of the bismuth layer structured compound contained in the dielectric layer can be suppressed and the paraelectric property thereof can be fully exhibited, it is possible to fabricate a thin film capacitor having a small size, large capacitance and an excellent dielectric characteristic.
摘要翻译:根据本发明的多层单元包括由熔融石英形成的支撑基板,形成在支撑基板上并由导电材料形成的电极层,形成在电极层上并由介电材料形成的缓冲层,该介电材料包含 具有由Bi 4 Ti 3 O 12 12表示的组成的铋层结构化合物,并且具有优异的取向特性,使得铋层结构化合物为 在c轴方向上取向,并且形成在缓冲层上并由包含具有由SrBi 4 Ti 4 Si表示的组成的铋层结构化合物的电介质材料形成的电介质层 并且具有优异的取向特性,使得铋层结构化合物在c轴方向上取向。 由于如此构成的多层单元包括在c轴方向上包含铋层结构化合物的电介质层,所以在例如在电介质层上设置上电极以形成薄膜电容器并施加 电极层与上部电极之间的电压,电场方向基本上与包含在电介质层中的铋层结构化合物的c轴重合。 结果,由于可以抑制包含在电介质层中的铋层结构化合物的铁电性能并且可以充分发挥其顺电特性,所以可以制造具有小尺寸,大电容的薄膜电容器和 优良的介电特性。