PINNED LAYER, SPIN VALVE STRUCTURE AND ITS FORMING METHOD
PROBLEM TO BE SOLVED: To provide a spin valve structure wherein superior thermal stability can be ensured in a reverse magnetic field, its forming method and a pinned layer which acts as one constituent of the spin valve structure. SOLUTION: The pinned layer 35 comprises a laminate wherein a nickel...
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| creator | EI FUKUSHO SEI SHUKO MIN RI NYO EIDO |
| description | PROBLEM TO BE SOLVED: To provide a spin valve structure wherein superior thermal stability can be ensured in a reverse magnetic field, its forming method and a pinned layer which acts as one constituent of the spin valve structure. SOLUTION: The pinned layer 35 comprises a laminate wherein a nickel chromium alloy layer 32 is interposed between a cobalt iron alloy layer 31 and a cobalt iron alloy layer 33, and especially, the pinned layer 35 is so constituted that the thickness of the cobalt iron alloy layer 31 which is positioned on a near side to a spacer layer 24 becomes about the twice of the cobalt iron alloy layer 33. In the spin valve structure which is provided with the pinned layer 35, deterioration of characteristic which is caused by temperature rise in annealing is restrained, so that superior thermal stability can be ensured in a reverse magnetic field. COPYRIGHT: (C)2003,JPO |
| format | Patent |
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SOLUTION: The pinned layer 35 comprises a laminate wherein a nickel chromium alloy layer 32 is interposed between a cobalt iron alloy layer 31 and a cobalt iron alloy layer 33, and especially, the pinned layer 35 is so constituted that the thickness of the cobalt iron alloy layer 31 which is positioned on a near side to a spacer layer 24 becomes about the twice of the cobalt iron alloy layer 33. In the spin valve structure which is provided with the pinned layer 35, deterioration of characteristic which is caused by temperature rise in annealing is restrained, so that superior thermal stability can be ensured in a reverse magnetic field. COPYRIGHT: (C)2003,JPO</description><edition>7</edition><language>eng</language><subject>BASIC ELECTRIC ELEMENTS ; ELECTRICITY ; INDUCTANCES ; INFORMATION STORAGE ; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER ; MAGNETS ; MEASURING ; MEASURING ELECTRIC VARIABLES ; MEASURING MAGNETIC VARIABLES ; PHYSICS ; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES ; TESTING ; TRANSFORMERS</subject><creationdate>2003</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20030620&DB=EPODOC&CC=JP&NR=2003174213A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20030620&DB=EPODOC&CC=JP&NR=2003174213A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>EI FUKUSHO</creatorcontrib><creatorcontrib>SEI SHUKO</creatorcontrib><creatorcontrib>MIN RI</creatorcontrib><creatorcontrib>NYO EIDO</creatorcontrib><title>PINNED LAYER, SPIN VALVE STRUCTURE AND ITS FORMING METHOD</title><description>PROBLEM TO BE SOLVED: To provide a spin valve structure wherein superior thermal stability can be ensured in a reverse magnetic field, its forming method and a pinned layer which acts as one constituent of the spin valve structure. SOLUTION: The pinned layer 35 comprises a laminate wherein a nickel chromium alloy layer 32 is interposed between a cobalt iron alloy layer 31 and a cobalt iron alloy layer 33, and especially, the pinned layer 35 is so constituted that the thickness of the cobalt iron alloy layer 31 which is positioned on a near side to a spacer layer 24 becomes about the twice of the cobalt iron alloy layer 33. In the spin valve structure which is provided with the pinned layer 35, deterioration of characteristic which is caused by temperature rise in annealing is restrained, so that superior thermal stability can be ensured in a reverse magnetic field. 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SOLUTION: The pinned layer 35 comprises a laminate wherein a nickel chromium alloy layer 32 is interposed between a cobalt iron alloy layer 31 and a cobalt iron alloy layer 33, and especially, the pinned layer 35 is so constituted that the thickness of the cobalt iron alloy layer 31 which is positioned on a near side to a spacer layer 24 becomes about the twice of the cobalt iron alloy layer 33. In the spin valve structure which is provided with the pinned layer 35, deterioration of characteristic which is caused by temperature rise in annealing is restrained, so that superior thermal stability can be ensured in a reverse magnetic field. COPYRIGHT: (C)2003,JPO</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | BASIC ELECTRIC ELEMENTS ELECTRICITY INDUCTANCES INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER MAGNETS MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TESTING TRANSFORMERS |
| title | PINNED LAYER, SPIN VALVE STRUCTURE AND ITS FORMING METHOD |
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