摘要:
A piezoelectric film is provided that is represented by the following general formula: Pb1−b[((X1/3Nb2/3)1−cB′c)1−aYa]O3 wherein X is at least one of Mg, Zn and Ni; B′ is at least one of Zr, Ti and Hf; Y is at least one of V, Nb, Ta, Cr, Mo and W; a satisfies 0.05≦a
摘要翻译:提供了由以下通式表示的压电膜:Pb 1-b [((X 1/3 Nb 2/3) )1-c B'C 1)a-1-a a a a 3 a / 3 >其中X是Mg,Zn和Ni中的至少一种; B'是Zr,Ti和Hf中的至少一种; Y是V,Nb,Ta,Cr,Mo和W中的至少一种; a满足0.05 <= a <0.30; b满足0.025 <= b <= 0.15; 当X为Mg时,c满足0.25 <= c <= 0.35; 当X为Ni时,c满足0.30 <= c <0.40; 当X为Zn时,c满足0.05 <= c <0.15。
摘要:
A method for manufacturing a perovskite type oxide layer includes the steps of: forming, above a substrate, a first oxide layer composed of perovskite type oxide; forming, above the first oxide layer, a second oxide layer composed of at least one of a perovskite type oxide layer crystallized at a temperature lower than a crystallization temperature of the first oxide layer and a pyrochlore layer having elements identical with elements of the perovskite type oxide; forming an electrode layer above the second oxide layer; and conducting a heat treatment.
摘要:
A piezoelectric device including: a substrate; a first conductive layer formed over the substrate, the first conductive layer including a conductive oxide layer formed of a (001) preferentially oriented lanthanum nickelate, and the lanthanum nickelate having oxygen deficiency; a piezoelectric layer formed over the first conductive layer and including a piezoelectric having a perovskite structure; and a second conductive layer electrically connected with the piezoelectric layer.
摘要:
To provide precursor compositions for forming ferroelectric, methods for manufacturing precursor compositions, and methods for forming ferroelectric films using precursor compositions, which have excellent composition controllability in a liquid phase method, and in which metal compositions such as lead can be reused. A precursor composition pertains to a precursor composition including a precursor for forming a ferroelectric, wherein the ferroelectric is expressed by a general formula of AB1-xCxO3, where an element A is composed of at least Pb, an element B is composed of at least one of Zr, Ti, V, W and Hf, an element C is composed of at least one of Nb and Ta, and the precursor includes at least the element B and the element C, and has an ester-bond in a part thereof.
摘要翻译:提供用于形成铁电体的前体组合物,用于制备前体组合物的方法,以及使用在液相法中具有优异的组成可控性的前体组合物形成铁电体膜的方法,其中可以重复使用诸如铅的金属组合物。 前体组合物涉及包含用于形成铁电体的前体的前体组合物,其中铁电体由通式为AB 1-x C x O O 3元素A至少由Pb构成,元素B由Zr,Ti,V,W和Hf中的至少一种构成,元素C由Nb和Ta中的至少一种构成 ,并且前体至少包含元素B和元素C,并且其一部分具有酯键。
摘要:
To provide ferroelectric film laminated bodies with few crystal defects and having excellent characteristics. A ferroelectric film laminated body includes an electrode and a PZT system ferroelectric film formed on the electrode. In the ferroelectric film, Nb replaces Ti composition by 2.5 mol % or more but 40 mol % or less, and the electrode does not include almost any oxygen that diffuses from the ferroelectric film.
摘要:
To provide ferroelectric films with which highly reliable ferroelectric devices can be obtained. A ferroelectric film comprised of a perovskite structure ferroelectric shown by ABO3, including at least one type of Si2+, Ge2+ and Sn2+ as an A site doping ion, and at least Nb5+ as a B site doping ion.
摘要:
A bismuth silicate film (insulating film) 3 of Bi2SiO5 oriented predominantly in the direction of (100) is formed on a Si substrate 2 and a ferroelectric thin film 4 is formed on the bismuth silicate film 3 to create an MFIS structure having a c-axis-oriented ferroelectric thin film 4 formed with good reproducibility. A highly reliable thin film device is produced by applying the MFIS structure to a FET.
摘要:
A ferroelectrics thin-film coated substrate is manufactured in a low-temperature process by using a ferroelectrics having a dense and even surface and exhibiting a large residual spontaneous polarization. A ferroelectrics thin-film coated substrate has a structure with a buffer layer, a growth layer allowing a ferroelectrics thin-film to grow, and a ferroelectrics thin-film made of a ferroelectric material having a layered crystalline structure expressed in the chemical formula Bi.sub.2 A.sub.m-1 B.sub.m O.sub.3m+3 (A is selected from Na.sup.1+, K.sup.1+, Pb.sup.2+, Ca.sup.2+, Sr.sup.2+, Ba.sup.2+, Bi.sup.3+ and the like, B is selected from Fe.sup.3+, Ti.sup.4+, Nb.sup.5+, Ta.sup.5+, W.sup.6+ and Mo.sup.6+, and m is an integer not less than 1) formed in succession.
摘要:
A ferroelectric thin film coated substrate is obtained by a producing method of forming a crystalline thin film on a substrate by means of a MOCVD method at a substrate temperature at which crystal grows and of forming a ferroelectric thin film on the crystalline thin film by means of the MOCVD method at a film forming temperature, which is lower than the film forming temperature of the crystalline thin film. This producing method makes it possible to produce a ferroelectric thin film, where a surface of the thin film is dense and even, leakage current properties are excellent and sufficiently large remanent spontaneous polarization is shown, at a lower temperature.
摘要:
To produce a ferroelectric film formed of a lead-free material. The ferroelectric film according to an aspect of the present invention includes a (K1−XNaX)NbO3 film or a BiFeO3 film having a perovskite structure and a crystalline oxide preferentially oriented to (001) formed on at least one of the upper side and lower side of the (K1−XNaX)NbO3 film or BiFeO3 film, and X satisfies the formula below 0.3≦X≦0.7.