JPH0669006B2 - Organic magnetic thin film and method for manufacturing the same - Google Patents
Organic magnetic thin film and method for manufacturing the sameInfo
- Publication number
- JPH0669006B2 JPH0669006B2 JP59073345A JP7334584A JPH0669006B2 JP H0669006 B2 JPH0669006 B2 JP H0669006B2 JP 59073345 A JP59073345 A JP 59073345A JP 7334584 A JP7334584 A JP 7334584A JP H0669006 B2 JPH0669006 B2 JP H0669006B2
- Authority
- JP
- Japan
- Prior art keywords
- thin film
- organic
- magnetic thin
- organic magnetic
- substrate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000005291 magnetic effect Effects 0.000 title claims description 33
- 239000010409 thin film Substances 0.000 title claims description 21
- 238000000034 method Methods 0.000 title claims description 14
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000000758 substrate Substances 0.000 claims description 16
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical class [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims description 10
- 239000010408 film Substances 0.000 claims description 8
- 229910000358 iron sulfate Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 5
- 230000005307 ferromagnetism Effects 0.000 claims description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 5
- 229910052748 manganese Chemical group 0.000 claims description 5
- -1 nitrilohexamethylene nitrilomethylidene Chemical group 0.000 claims description 5
- 125000000217 alkyl group Chemical group 0.000 claims description 4
- 229910052742 iron Chemical group 0.000 claims description 4
- 230000005294 ferromagnetic effect Effects 0.000 claims description 2
- 239000011572 manganese Chemical group 0.000 claims 4
- 125000000962 organic group Chemical group 0.000 claims 1
- 230000002209 hydrophobic effect Effects 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 4
- 235000003891 ferrous sulphate Nutrition 0.000 description 3
- 239000011790 ferrous sulphate Substances 0.000 description 3
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 3
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Landscapes
- Thin Magnetic Films (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、電波吸収体や磁気記録媒体等に使用する磁性
薄膜に関するものである。さらに詳しくは、強磁性の有
機磁性物質を、所定の基板上にラングミュアー・ブロジ
ェット法（以下ＬＢ法という）を用いて配向させた状態
で累積形成することを特徴とした有機磁性薄膜に関する
ものである。TECHNICAL FIELD The present invention relates to a magnetic thin film used for a radio wave absorber, a magnetic recording medium, or the like. More specifically, the present invention relates to an organic magnetic thin film characterized in that a ferromagnetic organic magnetic substance is cumulatively formed on a predetermined substrate in an oriented state by using the Langmuir-Blodgett method (hereinafter referred to as LB method). Is.
従来例の構成とその問題点 従来、電波吸収体や磁気記録媒体として用いられてきた
磁性薄膜は、強磁性を示す金属やその酸化物の微粉末を
有機バインダーに分散して基板に塗布する方法や、直接
スパッタ法等により、基板表面に蒸着形成する方法によ
り製造されていた。しかしながら、金属を用いた場合に
は、磁気特性は良いが、酸化されやすい等のため耐候性
が悪かったし、金属酸化物を用いたものでは、磁気特性
が悪かった。Structure of Conventional Example and Its Problems Conventionally, a magnetic thin film used as a radio wave absorber or a magnetic recording medium is a method in which fine powder of a metal exhibiting ferromagnetism or its oxide is dispersed in an organic binder and applied to a substrate. Alternatively, it was manufactured by a method of vapor deposition forming on the substrate surface by a direct sputtering method or the like. However, when a metal is used, the magnetic properties are good, but the weatherability is poor because it is easily oxidized, and when the metal oxide is used, the magnetic properties are poor.
発明の目的 本発明は、上述のごとき従来の磁性薄膜の欠点に鑑み、
なされたものであり、酸素等の酸化性雰囲気中でも安定
で耐候性があり、しかも磁気特性のすぐれた有機磁性薄
膜を提供することを目的とする。OBJECT OF THE INVENTION The present invention, in view of the drawbacks of the conventional magnetic thin film as described above,
The object of the present invention is to provide an organic magnetic thin film which is stable and weather resistant even in an oxidizing atmosphere such as oxygen and has excellent magnetic properties.
発明の構成 本発明は、直鎖状のアルキル基とＭｎまたはＦｅ原子を
含む強磁性を有する有機磁性物質の誘導体を用い、ＬＢ
法により、所定の基板上に前記誘導体分子を配向させた
状態で累積形成することを特徴とした有機磁性薄膜およ
びその製造方法を提供するものである。Structure of the Invention The present invention uses a derivative of an organic magnetic substance having ferromagnetism containing a linear alkyl group and Mn or Fe atom, and
The present invention provides an organic magnetic thin film and a method for producing the same, which is characterized in that the derivative molecules are cumulatively formed on a predetermined substrate in a state of being oriented by a method.
実施例の説明 従来より、強磁性を示す有機磁性物質として、マンガン
・フタロシアニン（以下Mn・PCという分子式−(1)）や、
ポリ・ビス・２６ピリジンジイルメチリデンニトリロヘ
キサメチレンニトリロメチリデン・硫酸鉄（以下ＰＰＨ
・硫酸鉄という分子式−(2)）等の金属配位化合物が知
られている。しかしながら、これらの物質は有機溶媒に
溶けないため、薄膜化することがむつかしく、さらにま
た、分子配列を制御できなかったため、磁気特性も良い
ものが得られなかった。Description of Examples Conventionally, as an organic magnetic substance exhibiting ferromagnetism, manganese-phthalocyanine (hereinafter referred to as Mn -PC molecular formula- (1)),
Poly-bis-26 pyridinediyl methylidene nitrilohexamethylene nitrilomethylidene-iron sulfate (hereinafter PPH
-A metal coordination compound such as a molecular formula of iron sulfate- (2)) is known. However, since these substances are insoluble in organic solvents, it is difficult to form a thin film. Further, since the molecular arrangement could not be controlled, good magnetic properties could not be obtained.
そこで、まず、これらの分子にアルキル基（カーボン鎖
等）を結合させて、分子式−(3),(4)を作り、有機溶媒
に可溶な誘導体に変性する。（（ここで、これらMn PC
誘導体（分子式−(3)）やPPH前駆体（以下ＰＨという、
分子式−(4)）は、分子内に長鎖アルキルキ基よりなる
疎水部（なお、ここで本目的のためには炭素数は１４〜
２４が良い）と、環状結合基部よりなる親水部を持つた
め分子を有機溶媒に溶かし、水面上に浮かばせて横方向
に圧縮させながら基板上に引き上げて成膜するＬＢ法を
用いることが出来る。）） 次に、前記誘導体を用い前述のＬＢ法により、所定の基
板上に分子の配向した有機磁性薄膜を形成する。Therefore, first, an alkyl group (carbon chain or the like) is bonded to these molecules to form molecular formulas-(3) and (4), and the derivative is modified into a derivative soluble in an organic solvent. ((Where these M n PC
Derivative (molecular formula- (3)) and PPH precursor (hereinafter referred to as PH,
The molecular formula- (4)) is a hydrophobic part consisting of a long-chain alkyl group in the molecule (here, for the purpose of this purpose, the number of carbon atoms is 14 to
24 is preferable), and since it has a hydrophilic part consisting of a cyclic bond base part, the LB method can be used in which the molecule is dissolved in an organic solvent, floated on the water surface and laterally compressed and pulled up on the substrate to form a film. . )) Next, an organic magnetic thin film in which molecules are oriented is formed on a predetermined substrate by the LB method using the above derivative.
なお、ＰＨを用いる場合には、ＬＢ法で用いる展開用の
水溶液中に硫酸第１鉄を溶解しておくことにより、成膜
時に強磁性を示す。ＰＨ・硫酸鉄（分子式−(5)）を作
ることができる。When PH is used, ferrous sulfate is dissolved in an aqueous solution for development used in the LB method to exhibit ferromagnetism during film formation. PH / iron sulfate (molecular formula- (5)) can be made.
さらに、保磁力を大きくしたい場合には、ＬＢ法による
膜形成をくり返すことにより、同じ膜を累積形成するこ
とが可能である。Further, when it is desired to increase the coercive force, the same film can be cumulatively formed by repeating the film formation by the LB method.
（ただし、分子式−(3),(4)において、ｍ，ｎは14〜24
が良い） 以上の製造工程を概念図（第１図〜第４図）を用いて説
明すると、まず、はじめに、前記誘導体、例えばＰＨを
クロロホルム等の有機溶媒に溶解し、硫酸第１鉄を溶解
した水溶液１上へ滴下する。すると、ＰＨは硫酸第１鉄
と反応し、ＰＨ・硫酸鉄（分子式−(5)）２が生成さ
れ、この分子は、分子内に疎水部を持っているために、
横方向矢印Ａからフロート３で圧縮されると、フロート
３と基板（例えば、ガラス）４で狭まれ分子は第１図の
ように配向する。なおここで、５はＰＨ・硫酸鉄の疎水
部を示し、６は親水部を示す。 (However, in the molecular formulas − (3) and (4), m and n are 14 to 24.
Is good) The above manufacturing process will be described with reference to the conceptual diagrams (FIGS. 1 to 4). First, the derivative, for example, PH is dissolved in an organic solvent such as chloroform to prepare an aqueous solution 1 in which ferrous sulfate is dissolved. Drop on top. Then, PH reacts with ferrous sulfate to produce PH / iron sulfate (molecular formula-(5)) 2, and this molecule has a hydrophobic part in the molecule,
When compressed by the float 3 from the lateral arrow A, the molecules are narrowed between the float 3 and the substrate (for example, glass) 4 and the molecules are oriented as shown in FIG. Here, 5 indicates a hydrophobic portion of PH / iron sulfate, and 6 indicates a hydrophilic portion.
次に、フロート３で圧縮しながら基板を引き上げると、
ＰＨ・硫酸鉄２の単分子膜が基板上に配向形成される
（第２図）。さらに、フロート３で圧縮しながら、ＰＨ
・硫酸鉄２の単分子膜の形成された基板４′を水中へ挿
入むと、第３図に示すように疎水部５が接するように２
層目のＰＨ・硫酸鉄単分子膜７が累積形成される。Next, pulling up the substrate while compressing with the float 3,
A monomolecular film of PH / iron sulfate 2 is oriented and formed on the substrate (Fig. 2). Furthermore, while compressing with the float 3, PH
・ When the substrate 4'on which the monolayer of iron sulfate 2 is formed is inserted into the water, the hydrophobic part 5 is contacted as shown in FIG.
The PH / iron sulfate monomolecular film 7 of the layer is cumulatively formed.
以下、同じ工程を交互にくり返すことにより、有機磁性
物質を配向させた状態で単分子膜８が累積された有機磁
性薄膜を製造できる（第４図）。Hereinafter, by repeating the same process alternately, it is possible to manufacture an organic magnetic thin film in which the monomolecular film 8 is accumulated with the organic magnetic substance oriented (FIG. 4).
なお、本実施例では、基板の片面に有機磁性薄膜を形成
した場合を示したが、フロートを基板両側につけること
により、基板の裏表両面に形成できることは有らかであ
る。In this embodiment, the case where the organic magnetic thin film is formed on one surface of the substrate is shown, but it is obvious that the organic magnetic thin film can be formed on both front and back surfaces of the substrate by attaching the float to both sides of the substrate.
発明の効果 以上述べてきた本発明の方法を用いると、有機磁性物質
を配向した状態で成膜できるので、磁気特性のすぐれた
有機磁性薄膜をきわめて容易に製造できる。Effects of the Invention By using the method of the present invention described above, an organic magnetic substance can be formed in an oriented state, so that an organic magnetic thin film having excellent magnetic properties can be manufactured very easily.
第１図〜第４図は本発明の有機磁性薄膜の製造工程を説
明するための概念図である。 ２，７，８……有機磁性薄膜、４……基板。1 to 4 are conceptual diagrams for explaining the manufacturing process of the organic magnetic thin film of the present invention. 2, 7, 8 ... Organic magnetic thin film, 4 ... Substrate.
Claims (6)
を含む強磁性を有する有機物質の分子が基板上に一定の
方向に配向させた状態で累積されて膜を構成しているこ
とを特徴とした有機磁性薄膜。1. A film is formed by accumulating molecules of a ferromagnetic organic substance containing a linear alkyl group and Mn or Fe atoms in a state of being oriented in a certain direction on a substrate. Characterized organic magnetic thin film.
徴とした特許請求の範囲第１項記載の有機磁性薄膜。2. The organic magnetic thin film according to claim 1, wherein the organic substance is a metal coordination compound.
イルメチリデンニトリロヘキサメチレンニトリロメチリ
デン・硫酸鉄の誘導体またはマンガンフタロシアニンの
誘導体等よりなることを特徴とした特許請求の範囲第２
項記載の有機磁性薄膜。3. A metal coordination compound comprising bis.26.pyridinediylmethylidene nitrilohexamethylene nitrilomethylidene / iron sulfate derivative or manganese phthalocyanine derivative.
The organic magnetic thin film according to the item.
を含む強磁性を有する有機物質を用い、ラングミュアー
・ブロジェット法により分子方向をそろえて、基板上に
累積形成することを特徴とした有機磁性薄膜の製造方
法。4. A linear organic group and an organic substance having ferromagnetism containing Mn or Fe atoms are used, the molecular directions are aligned by the Langmuir-Blodgett method, and accumulated on the substrate. Of producing a thin organic magnetic thin film.
いることを特徴とした特許請求の範囲第４項記載の有機
磁性薄膜の製造方法。5. The method for producing an organic magnetic thin film according to claim 4, wherein a metal coordination compound is used as the organic magnetic substance.
ンジイルメチリデンニトリロヘキサメチレンニトリロメ
チリデン・硫酸鉄の誘導体またはマンガンフタロシアニ
ンの誘導体等を用いることを特徴とした特許請求の範囲
第５項記載の有機磁性薄膜の製造方法。6. The method according to claim 5, wherein a derivative of bis.26.pyridinediylmethylidene nitrilohexamethylene nitrilomethylidene / iron sulfate or a manganese phthalocyanine derivative is used as the metal coordination compound. Method for producing organic magnetic thin film of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59073345A JPH0669006B2 (en) | 1984-04-12 | 1984-04-12 | Organic magnetic thin film and method for manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59073345A JPH0669006B2 (en) | 1984-04-12 | 1984-04-12 | Organic magnetic thin film and method for manufacturing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60216515A JPS60216515A (en) | 1985-10-30 |
| JPH0669006B2 true JPH0669006B2 (en) | 1994-08-31 |
Family
ID=13515472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59073345A Expired - Lifetime JPH0669006B2 (en) | 1984-04-12 | 1984-04-12 | Organic magnetic thin film and method for manufacturing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0669006B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3388797B2 (en) * | 1992-03-16 | 2003-03-24 | 松下電器産業株式会社 | Organic magnetic film and method for producing the same |
| JP4715982B2 (en) * | 2001-03-05 | 2011-07-06 | 日産化学工業株式会社 | Molecular magnetic material and method for producing the same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1572181A (en) * | 1975-08-18 | 1980-07-23 | Ici Ltd | Device comprising a thin film of organic materila |
-
1984
- 1984-04-12 JP JP59073345A patent/JPH0669006B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60216515A (en) | 1985-10-30 |
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