GB925766A - Thin magnetizable film - Google Patents
Thin magnetizable filmInfo
- Publication number
- GB925766A GB925766A GB39931/61A GB3993161A GB925766A GB 925766 A GB925766 A GB 925766A GB 39931/61 A GB39931/61 A GB 39931/61A GB 3993161 A GB3993161 A GB 3993161A GB 925766 A GB925766 A GB 925766A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nickel
- layer
- magnetic
- rod
- glass rod
- 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
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 8
- 229910052759 nickel Inorganic materials 0.000 abstract 4
- 239000011521 glass Substances 0.000 abstract 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 abstract 2
- 229910045601 alloy Inorganic materials 0.000 abstract 2
- 239000000956 alloy Substances 0.000 abstract 2
- 238000007747 plating Methods 0.000 abstract 2
- TXUICONDJPYNPY-UHFFFAOYSA-N (1,10,13-trimethyl-3-oxo-4,5,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-17-yl) heptanoate Chemical compound C1CC2CC(=O)C=C(C)C2(C)C2C1C1CCC(OC(=O)CCCCCC)C1(C)CC2 TXUICONDJPYNPY-UHFFFAOYSA-N 0.000 abstract 1
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 abstract 1
- 229910021626 Tin(II) chloride Inorganic materials 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 abstract 1
- UFULAYFCSOUIOV-UHFFFAOYSA-N cysteamine Chemical compound NCCS UFULAYFCSOUIOV-UHFFFAOYSA-N 0.000 abstract 1
- 238000004070 electrodeposition Methods 0.000 abstract 1
- 230000001747 exhibiting effect Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000011253 protective coating Substances 0.000 abstract 1
- 230000001235 sensitizing effect Effects 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 235000011150 stannous chloride Nutrition 0.000 abstract 1
- 239000001119 stannous chloride Substances 0.000 abstract 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 abstract 1
- 239000010409 thin film Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y25/00—Nanomagnetism, e.g. magnetoimpedance, anisotropic magnetoresistance, giant magnetoresistance or tunneling magnetoresistance
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F10/00—Thin magnetic films, e.g. of one-domain structure
- H01F10/08—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers
- H01F10/10—Thin magnetic films, e.g. of one-domain structure characterised by magnetic layers characterised by the composition
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F10/00—Thin magnetic films, e.g. of one-domain structure
- H01F10/32—Spin-exchange-coupled multilayers, e.g. nanostructured superlattices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
- H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
- H03K3/45—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of non-linear magnetic or dielectric devices
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nanotechnology (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- ing And Chemical Polishing (AREA)
- Thin Magnetic Films (AREA)
- Magnetic Record Carriers (AREA)
Abstract
925,766. Magnetic structures ; magnetic core storage devices. NATIONAL CASH REGISTER CO. Nov. 8, 1961 [Dec. 21, 1960], No. 39931/61. Class 38 (2). [Also in Group XXXVI] A magnetic thin film exhibiting a square hysteresis loop and suitable for a bi-stable magnetic storage element comprises two superimposed nickel-iron alloy layers, one containing 30-90% nickel and the other containing 1- 7% nickel so that the combination exhibits a low coercivity and a fast switching speed. The thickness of the " high nickel " layer is between 500 and 4000 , and that of the " low nickel " layer between 3000 and 5000 . The bi-stable element is formed by electrodeposition of the alloy layers on a copperberyllium alloy rod of thickness 0.12-1.3 mm. or alternatively on a silvered glass rod. Details of the plating baths are specified. An axial magnetic field may be applied during plating. In manufacture the rod is cleaned, etched with concentrated HNO 3 , rinsed, plated with the first layer, rinsed, and immediately plated with the second layer. . It is then washed, dried with acetone and given a protective coating which may be a urethane resin. If a silvered glass rod is used this is prepared by cleaning the glass rod, sensitizing it with stannous chloride, and spraying on a silvering solution and a silver-reducing solution repeatedly until sufficient silver is deposited. Specifications 885,755 and 891,927 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US77451A US3213431A (en) | 1960-12-21 | 1960-12-21 | Bilayer magnetic device operating as a single layer device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB925766A true GB925766A (en) | 1963-05-08 |
Family
ID=22138127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB39931/61A Expired GB925766A (en) | 1960-12-21 | 1961-11-08 | Thin magnetizable film |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3213431A (en) |
| CH (1) | CH388481A (en) |
| DE (1) | DE1284533B (en) |
| DK (1) | DK120404B (en) |
| GB (1) | GB925766A (en) |
| NL (2) | NL128934C (en) |
| SE (1) | SE302314B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3319315A (en) * | 1962-11-21 | 1967-05-16 | Tech Met Corp | Method of preparing magnetic memory device |
| GB1052649A (en) * | 1964-06-05 | |||
| CH420271A (en) * | 1965-02-23 | 1966-09-15 | Ibm | Thin-film cell with anisotropic magnetic properties, process for their production and use of such cells in a read-only memory |
| US3531783A (en) * | 1965-08-09 | 1970-09-29 | Sperry Rand Corp | Multilayer magnetic wire memory |
| US3451793A (en) * | 1966-02-12 | 1969-06-24 | Toko Inc | Magnetic thin film wire with multiple laminated film coating |
| US3456250A (en) * | 1966-11-22 | 1969-07-15 | Sperry Rand Corp | Removable magnetic data storage system |
| US3454916A (en) * | 1967-10-09 | 1969-07-08 | Granger Associates | Transformer core construction |
| US3535703A (en) * | 1967-10-26 | 1970-10-20 | Ncr Co | Non-destructive readout magnetic storage element |
| US3920409A (en) * | 1968-06-19 | 1975-11-18 | Hitachi Ltd | Plated ferromagnetic wire for wire memory |
| US3736576A (en) * | 1970-11-27 | 1973-05-29 | Plated wire magnetic memory device | |
| US4845454A (en) * | 1986-07-29 | 1989-07-04 | Toko, Inc. | Inductance element with core of magnetic thin films |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR966694A (en) * | 1948-05-14 | 1950-10-16 | Process for manufacturing magnetic cores and cores obtained by this process | |
| US2643130A (en) * | 1949-11-02 | 1953-06-23 | Brush Dev Co | Multilayer magnetic record member |
| GB751843A (en) * | 1951-09-03 | 1956-07-04 | Gustav Fries | Improvements in or relating to magnetic record carriers |
| US2792563A (en) * | 1954-02-01 | 1957-05-14 | Rca Corp | Magnetic system |
| US3092812A (en) * | 1957-05-10 | 1963-06-04 | Sperry Rand Corp | Non-destructive sensing of thin film magnetic cores |
| NL230021A (en) * | 1957-08-01 | |||
| US3069661A (en) * | 1957-10-16 | 1962-12-18 | Bell Telephone Labor Inc | Magnetic memory devices |
| NL113780C (en) * | 1957-10-23 | |||
| NL233342A (en) * | 1957-11-18 | |||
| US3077586A (en) * | 1959-05-25 | 1963-02-12 | Ibm | Magnetic storage device |
| US3031648A (en) * | 1960-05-25 | 1962-04-24 | Ncr Co | Magnetic data storage device |
-
0
- NL NL272834D patent/NL272834A/xx unknown
- NL NL128934D patent/NL128934C/xx active
-
1960
- 1960-12-21 US US77451A patent/US3213431A/en not_active Expired - Lifetime
-
1961
- 1961-11-08 GB GB39931/61A patent/GB925766A/en not_active Expired
- 1961-11-30 SE SE11955/61A patent/SE302314B/xx unknown
- 1961-12-12 CH CH1447461A patent/CH388481A/en unknown
- 1961-12-12 DK DK496861AA patent/DK120404B/en unknown
- 1961-12-19 DE DEN20976A patent/DE1284533B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| US3213431A (en) | 1965-10-19 |
| NL272834A (en) | |
| CH388481A (en) | 1965-02-28 |
| DK120404B (en) | 1971-05-24 |
| SE302314B (en) | 1968-07-15 |
| DE1284533B (en) | 1968-12-05 |
| NL128934C (en) |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB925766A (en) | Thin magnetizable film | |
| US2945217A (en) | Magnetic data storage devices | |
| US3098803A (en) | Thin magnetic film | |
| GB845604A (en) | Methods and apparatus for switching magnetic material | |
| GB905476A (en) | Process for making a magnetic device | |
| GB1139987A (en) | Method of manufacturing a magnetic thin film device | |
| US3119753A (en) | Method of preparing thin magnetic films | |
| GB1412313A (en) | Memory device using ferromagnetic substance lines | |
| Sato et al. | Fermi surface of Alloys | |
| US3393982A (en) | Ferromagnetic storage devices having uniaxial anisotropy | |
| GB1143757A (en) | ||
| GB911807A (en) | Magnetic data storage device | |
| GB901839A (en) | Improvements in or relating to magnetic memory or gating devices | |
| GB1034946A (en) | Improved process for producing magnetic thin film elements and elements produced thereby | |
| GB884261A (en) | Improvements in and relating to magnetic pole pieces and methods of forming such pole pieces | |
| US3217301A (en) | Memory element | |
| GB1341592A (en) | Composite metallic wire | |
| GB1249642A (en) | Magnetic memory carrier | |
| US3305327A (en) | Electroless plating of magnetic material and magnetic memory element | |
| DE2314236A1 (en) | PROCEDURE FOR APPLYING ADHESIVE METAL LAYERS TO OXYDIC MATERIAL | |
| US3578468A (en) | Solution for depositing an electroless cobalt alloy | |
| GB885755A (en) | Bistable ferromagnetic switching and data storage devices | |
| JPS57105839A (en) | Photo-thermal magnetic recording medium | |
| GB1083673A (en) | Improvements relating to magnetic thin film elements for magnetic stores | |
| US3303040A (en) | Method of manufacturing a magnetic member having a coating of crystalline ferromagnetic material having uniaxial magnetic anisotropy |