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JPS5929122B2 - Magnetic semiconductor and its manufacturing method - Google Patents
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JPS5929122B2 - Magnetic semiconductor and its manufacturing method - Google Patents

Magnetic semiconductor and its manufacturing method

Info

Publication number
JPS5929122B2
JPS5929122B2 JP51068485A JP6848576A JPS5929122B2 JP S5929122 B2 JPS5929122 B2 JP S5929122B2 JP 51068485 A JP51068485 A JP 51068485A JP 6848576 A JP6848576 A JP 6848576A JP S5929122 B2 JPS5929122 B2 JP S5929122B2
Authority
JP
Japan
Prior art keywords
zinc
magnetic semiconductor
iron
chromium
manufacturing
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
Application number
JP51068485A
Other languages
Japanese (ja)
Other versions
JPS52151895A (en
Inventor
征夫 笠原
恒治 新田
茂 早川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP51068485A priority Critical patent/JPS5929122B2/en
Publication of JPS52151895A publication Critical patent/JPS52151895A/en
Publication of JPS5929122B2 publication Critical patent/JPS5929122B2/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/40Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials of magnetic semiconductor materials, e.g. CdCr2S4
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/40Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials of magnetic semiconductor materials, e.g. CdCr2S4
    • H01F1/401Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials of magnetic semiconductor materials, e.g. CdCr2S4 diluted
    • H01F1/402Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials of magnetic semiconductor materials, e.g. CdCr2S4 diluted of II-VI type, e.g. Zn1-x Crx Se

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Magnetic Ceramics (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Hard Magnetic Materials (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Conductive Materials (AREA)
  • Compounds Of Iron (AREA)

Description

【発明の詳細な説明】 本発明は磁性半導体、特に硫黄陽イオンを含み。[Detailed description of the invention] The present invention includes magnetic semiconductors, particularly sulfur cations.

亜鉛、鉄およびクロムを主成分とする化合物磁性半導体
、およびその製造方法にかかり、磁化が大きく、抵抗率
の小さい磁性半導体、およびそれを容易に製造すること
のできる方法を提供しようとするものである。従来、フ
ェライト系磁器においては、磁化が大きいため、種々の
応用が考えられて来ている。
The present invention relates to a compound magnetic semiconductor whose main components are zinc, iron, and chromium, and a method for manufacturing the same, and aims to provide a magnetic semiconductor with high magnetization and low resistivity, and a method for easily manufacturing the same. be. Conventionally, ferrite-based porcelain has a large magnetization, so various applications have been considered.

しかしながら、その抵抗率が大きく、ほとんどのものは
、磁性半導体としての用途に適さないものであつた。本
発明にかかる磁性半導体は、硫黄陽イオンを含む亜鉛一
クロムー鉄系化合物であり、抵抗率のきわめて小さいも
のである。
However, most of them have high resistivity and are not suitable for use as magnetic semiconductors. The magnetic semiconductor according to the present invention is a zinc-monochromium-iron compound containing sulfur cations, and has extremely low resistivity.

一般に、亜鉛フェライトは、鉄イオンによる磁気モーメ
ントが、互いに逆向きの磁性を生じ、全体として、室温
以上の温度では、磁化のあられれないものである。
Generally, in zinc ferrite, the magnetic moments caused by iron ions generate magnetism in opposite directions, and as a whole, there is no magnetization at temperatures above room temperature.

この亜鉛フェライトに、原子価の大きい陽イオノを含ま
せると、その陽イオンの大きな原子価のため、原子価補
償を起こし、3価の鉄イオンが、2価の鉄イオンに変換
される。その結果、磁気的配列の変化が起こり、全体的
に大きな磁化が現われる。また、この原子価補償のため
、フェライト格子内に、空孔などの欠陥を生じる。この
格子欠陥によつて導電性がいちぢるしく作用され、これ
までのフェライト材料では得られないような、大きな導
電率を得ることができる。これは、本発明のような亜鉛
−クロムー鉄系化合物磁性体についても、いえる。発明
者らは、このような考察にもとづいて、原子価の大きな
陽イオンについて実験し検討した結果、通常では陽イオ
ンの得がたいハロゲン元素を除き、公害のない元素のう
ち、硫黄がもつとも適したものであることを認認した。
When this zinc ferrite contains a cation with a high valence, valence compensation occurs due to the high valence of the cation, and trivalent iron ions are converted to divalent iron ions. As a result, a change in magnetic alignment occurs, and a large overall magnetization appears. Further, due to this valence compensation, defects such as vacancies are generated in the ferrite lattice. These lattice defects significantly affect electrical conductivity, making it possible to obtain high electrical conductivity that cannot be obtained with conventional ferrite materials. This also applies to zinc-chromium-iron compound magnetic materials such as the present invention. Based on these considerations, the inventors conducted experiments and considered cations with large valences, and found that sulfur is the most suitable element among non-polluting elements, excluding halogen elements, which are normally difficult to obtain cations from. It was acknowledged that

次に、本発明の詳細について、実施例にもとづいて説明
する。
Next, details of the present invention will be explained based on examples.

まず、酸化亜鉛と酸化鉄、酸化クロムを、亜鉛と鉄、ク
ロムの3成分の合計量に対して、それぞれが10〜35
原子%.10〜85原子70,5〜80原子%の組成比
率になるよう、配合してから6よく混合した。
First, add zinc oxide, iron oxide, and chromium oxide to the total amount of zinc, iron, and chromium at a rate of 10 to 35% each.
atom%. After blending to obtain a composition ratio of 10 to 85 atoms and 70.5 to 80 at%, the mixture was thoroughly mixed for 6 minutes.

この混合は.湿式でも,あるいは乾式でもよい。混合物
をよく乾燥させてから、適当な形状6大きさに成型した
。この成型品を、カーボンあるいは石英などのるつぼ.
あるいはポートに入れ.雰囲気炉に装填し6窒素などを
キヤリアガスとして.二硫化炭素蒸気を送りこみ660
0〜1000℃の範囲内の温度で1〜10時間、熱処理
した。得られた磁器を、X線解析6熱解析2化学分析な
どで解析した結果6硫黄が陽イオンとして格子中に存在
する、亜鉛一クロム一鉄系化合物であることが確認され
た。
This mixture is. It can be wet or dry. After thoroughly drying the mixture, it was molded into 6 appropriate shapes and sizes. This molded product is placed in a crucible of carbon or quartz.
Or put it in the port. Load it into an atmosphere furnace and use nitrogen etc. as a carrier gas. Injecting carbon disulfide vapor 660
Heat treatment was performed at a temperature within the range of 0 to 1000°C for 1 to 10 hours. The obtained porcelain was analyzed by X-ray analysis, thermal analysis, chemical analysis, etc., and it was confirmed that it was a zinc-monochromium-monoiron compound in which sulfur was present as a cation in the lattice.

これは6混合粉末を二硫化炭素雰囲気中で焼成した際に
,反応焼成を生じ.硫黄が化合物格子中に陽イオンとし
てドーブされたためと考えられる,そして6反応と同時
に焼成が行なわれるため,600℃付近の温度において
も焼成される。これは、通常のフエライトの焼成温度よ
りもかなり低い温度である。このようにして得られた亜
鉛−クロム−鉄系化合物は,その組成により6室温にお
ける磁化の値が約80emu/f!という大きな値を示
す。
This is because reaction firing occurs when the 6 mixed powder is fired in a carbon disulfide atmosphere. This is thought to be because sulfur was doped into the compound lattice as a cation, and because the calcination was performed simultaneously with the six reactions, the sintering occurred even at temperatures around 600°C. This is a much lower temperature than the firing temperature of normal ferrite. The zinc-chromium-iron compound thus obtained has a magnetization value of about 80 emu/f at room temperature depending on its composition! This shows a large value.

また6四端子法で測定した抵抗率は数mΩ儂から10m
0儂以下というきわめて小さな値であり6その上、活性
化エネルギーが0.005e程度というきわめて小さい
値である。このため6抵抗値の温度変化は小さい。さら
に、キユリ一温度は500℃以上であり、安定な磁性半
導体として使用することができる。この磁性体半導体は
6電流制御用素子などに使用することができる。下表に
.代表的な特性を示す。
In addition, the resistivity measured by the 6-four terminal method ranges from several mΩ to 10 mΩ.
This is an extremely small value of 0 e or less. 6 Moreover, the activation energy is an extremely small value of about 0.005 e. Therefore, the temperature change in the resistance value of 6 is small. Furthermore, its temperature is 500° C. or higher, and it can be used as a stable magnetic semiconductor. This magnetic semiconductor can be used for 6-current control elements and the like. In the table below. Shows typical characteristics.

いずれも,室温における値である。上述の実施例では6
粉末を成型してから焼成し、磁器としているけれども.
成型せずに,混合粉末のまま熱処理して反応させても,
硫黄の陽イオンを含む亜鉛−クロム−鉄系化合物の粉末
を得ることができる。
All values are at room temperature. In the above example, 6
Porcelain is made by molding the powder and then firing it.
Even if the mixed powder is heat treated and reacted without being molded,
A powder of a zinc-chromium-iron compound containing sulfur cations can be obtained.

粉末材料は.カーボン6樹脂またはガラスなどに適当な
割合で分散または混合することにより6種々の形態の製
品を作ることができる。以上のように、本発明にかかる
磁性半導体は、大きな磁化を示すだけでなく6さわめて
小さな抵抗率をもち6かつその温度変化も小さく、安定
な化合物である。この化合物は6X線解析によれば,ス
ピネル相を示す。そして,この化合物は、低い温度で簡
単にかつ安全に製造することができるものであり、さら
にその製造工程における公害防止対策もきわめて容易に
施せるものである。さらに、亜鉛−クロム−鉄系化合物
の,亜鉛、鉄またはクロムの一部を6ニツケル,マグネ
シウム,マンガン,カドミウム,リチウム,コバルト銅
,バナジウム,チタン,あるいはカルシウムなどの1f
U.上で置換してもよく6特性の優れた材料を得ること
がでさる。
Powder material. Products in various forms can be made by dispersing or mixing carbon 6 in resin or glass in an appropriate ratio. As described above, the magnetic semiconductor according to the present invention is a stable compound that not only exhibits large magnetization but also has a very small resistivity 6 and a small change in temperature. According to 6X-ray analysis, this compound exhibits a spinel phase. This compound can be easily and safely produced at low temperatures, and furthermore, it is extremely easy to take measures to prevent pollution during the production process. Furthermore, a part of zinc, iron or chromium in zinc-chromium-iron compounds can be added to 1f such as nickel, magnesium, manganese, cadmium, lithium, cobalt copper, vanadium, titanium, or calcium.
U. The above may be substituted to obtain a material with excellent properties.

Claims (1)

【特許請求の範囲】 1 硫黄陽イオンを含み、亜鉛、クロムおよび鉄を主成
分とすることを特徴とする磁性半導体。 2 亜鉛、鉄、クロムの化合物を混合し、この原料を二
硫化炭素中で加熱して反応させることを特徴とする磁性
半導体の製造方法。 3 特許請求の範囲第2項の記載において、前記原料は
亜鉛、鉄およびクロムの3成分が、その合計量に対して
、亜鉛が10〜35原子%、鉄が10〜85原子%、お
よびクロムが5〜80原子%となるよう配合されている
ことを特徴とする磁性半導体の製造方法。 4 特許請求の範囲第2項または第3項の記載において
、二硫化炭素中での熱処理温度を600〜1000℃と
することを特徴とする磁性半導体の製造方法。
[Claims] 1. A magnetic semiconductor characterized by containing sulfur cations and having zinc, chromium and iron as main components. 2. A method for producing a magnetic semiconductor, which comprises mixing compounds of zinc, iron, and chromium, and heating the raw materials in carbon disulfide to cause a reaction. 3. In the description of claim 2, the raw material contains three components of zinc, iron, and chromium, and based on the total amount, zinc is 10 to 35 at%, iron is 10 to 85 at%, and chromium is A method for manufacturing a magnetic semiconductor, characterized in that the content of the magnetic semiconductor is 5 to 80 atomic %. 4. A method for manufacturing a magnetic semiconductor according to claim 2 or 3, characterized in that the heat treatment temperature in carbon disulfide is 600 to 1000°C.
JP51068485A 1976-06-10 1976-06-10 Magnetic semiconductor and its manufacturing method Expired JPS5929122B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP51068485A JPS5929122B2 (en) 1976-06-10 1976-06-10 Magnetic semiconductor and its manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP51068485A JPS5929122B2 (en) 1976-06-10 1976-06-10 Magnetic semiconductor and its manufacturing method

Publications (2)

Publication Number Publication Date
JPS52151895A JPS52151895A (en) 1977-12-16
JPS5929122B2 true JPS5929122B2 (en) 1984-07-18

Family

ID=13375021

Family Applications (1)

Application Number Title Priority Date Filing Date
JP51068485A Expired JPS5929122B2 (en) 1976-06-10 1976-06-10 Magnetic semiconductor and its manufacturing method

Country Status (1)

Country Link
JP (1) JPS5929122B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60192505A (en) * 1984-03-13 1985-10-01 井関農機株式会社 Fertilizer seeding device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60192505A (en) * 1984-03-13 1985-10-01 井関農機株式会社 Fertilizer seeding device

Also Published As

Publication number Publication date
JPS52151895A (en) 1977-12-16

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