Increase in Nucleation Field of Nanocrystalline Nd(Fe,Co)B Magnets Due to Strengthening of Exchange Interaction-Computer Simulation
The effect of the strength of exchange interaction on the nucleation field H_{N} was studied by computer simulation with varying temperature as well as the size of the non-magnetic phase for Nd(Fe,Co)B magnets composed of fine grains. It was clarified that the spatial distribution of demagnetizing...
Gespeichert in:
| Veröffentlicht in: | IEEE transactions on magnetics 2018-11, Vol.54 (11), p.1-5 |
|---|---|
| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 5 |
|---|---|
| container_issue | 11 |
| container_start_page | 1 |
| container_title | IEEE transactions on magnetics |
| container_volume | 54 |
| creator | Fukunaga, H. Harada, T. Yanai, T. Nakano, M. |
| description | The effect of the strength of exchange interaction on the nucleation field H_{N} was studied by computer simulation with varying temperature as well as the size of the non-magnetic phase for Nd(Fe,Co)B magnets composed of fine grains. It was clarified that the spatial distribution of demagnetizing field H_{d} is widened by an increase in the size of the non-magnetic phase and that the ratio of the spatial size of H_{d} to the exchange length L_{\mathrm {ex}} is an important factor of determining H_{N} . Resultantly, the increase in the exchange strength increased H_{N} . Based on this calculation result, magnetic properties of Nd(Fe,Co)B magnets were simulated and it was found that a small amount of substitution of Co for Fe increases L_{\mathrm {ex}} and resultantly improves H_{N} at high temperatures. |
| doi_str_mv | 10.1109/TMAG.2018.2846703 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_RIE</sourceid><recordid>TN_cdi_crossref_primary_10_1109_TMAG_2018_2846703</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><ieee_id>8402254</ieee_id><sourcerecordid>2121937997</sourcerecordid><originalsourceid>FETCH-LOGICAL-c245t-ce00e0b7f92ad8cffa3474ee55fbba67196425dc4659d44ba49e6d8104a5c593</originalsourceid><addsrcrecordid>eNo9kE1LwzAYx4MoOF8-gHgJeFGwM0mTtjnq3HSwzcN2L2n6tFa6ZCYpuLNf3NaJp4c_z_8FfghdUTKmlMiHzfLxZcwIzcYs40lK4iM0opLTiJBEHqMR6V-R5Ak_RWfef_SSC0pG6HtutAPlATcGrzrdggqNNXjWQFtiW-GVMla7vQ-qbRsDeFXezuB-Yu-e8FLVBoLHzx3gYPE6ODB1eAfTmHqITr_0uzI14LkJ4JQeiqOJ3e66XuJ1s-3a37ELdFKp1sPl3z1Hm9l0M3mNFm8v88njItKMixBpIARIkVaSqTLTVaVinnIAIaqiUElKZcKZKDVPhCw5LxSXkJQZJVwJLWR8jm4OtTtnPzvwIf-wnTP9Ys4oozJOpUx7Fz24tLPeO6jynWu2yu1zSvIBdT6gzgfU-R_qPnN9yDQA8O_POGFM8PgH0BV7vA</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2121937997</pqid></control><display><type>article</type><title>Increase in Nucleation Field of Nanocrystalline Nd(Fe,Co)B Magnets Due to Strengthening of Exchange Interaction-Computer Simulation</title><source>IEEE Xplore</source><creator>Fukunaga, H. ; Harada, T. ; Yanai, T. ; Nakano, M.</creator><creatorcontrib>Fukunaga, H. ; Harada, T. ; Yanai, T. ; Nakano, M.</creatorcontrib><description><![CDATA[The effect of the strength of exchange interaction on the nucleation field <inline-formula> <tex-math notation="LaTeX">H_{N} </tex-math></inline-formula> was studied by computer simulation with varying temperature as well as the size of the non-magnetic phase for Nd(Fe,Co)B magnets composed of fine grains. It was clarified that the spatial distribution of demagnetizing field <inline-formula> <tex-math notation="LaTeX">H_{d} </tex-math></inline-formula> is widened by an increase in the size of the non-magnetic phase and that the ratio of the spatial size of <inline-formula> <tex-math notation="LaTeX">H_{d} </tex-math></inline-formula> to the exchange length <inline-formula> <tex-math notation="LaTeX">L_{\mathrm {ex}} </tex-math></inline-formula> is an important factor of determining <inline-formula> <tex-math notation="LaTeX">H_{N} </tex-math></inline-formula>. Resultantly, the increase in the exchange strength increased <inline-formula> <tex-math notation="LaTeX">H_{N} </tex-math></inline-formula>. Based on this calculation result, magnetic properties of Nd(Fe,Co)B magnets were simulated and it was found that a small amount of substitution of Co for Fe increases <inline-formula> <tex-math notation="LaTeX">L_{\mathrm {ex}} </tex-math></inline-formula> and resultantly improves <inline-formula> <tex-math notation="LaTeX">H_{N} </tex-math></inline-formula> at high temperatures.]]></description><identifier>ISSN: 0018-9464</identifier><identifier>EISSN: 1941-0069</identifier><identifier>DOI: 10.1109/TMAG.2018.2846703</identifier><identifier>CODEN: IEMGAQ</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Cobalt ; Computational modeling ; Computer simulation ; Demagnetization ; Demagnetization field ; Elementary particle exchange interactions ; exchange length ; Exchanging ; Iron ; Magnetic properties ; Magnetism ; Magnetization ; Magnets ; micromagnetics simulation ; Nd–Fe–B ; Neodymium ; Nucleation ; Perpendicular magnetic anisotropy ; Spatial distribution ; Temperature dependence</subject><ispartof>IEEE transactions on magnetics, 2018-11, Vol.54 (11), p.1-5</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2018</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c245t-ce00e0b7f92ad8cffa3474ee55fbba67196425dc4659d44ba49e6d8104a5c593</cites><orcidid>0000-0002-7990-3370</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/8402254$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27903,27904,54737</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/8402254$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Fukunaga, H.</creatorcontrib><creatorcontrib>Harada, T.</creatorcontrib><creatorcontrib>Yanai, T.</creatorcontrib><creatorcontrib>Nakano, M.</creatorcontrib><title>Increase in Nucleation Field of Nanocrystalline Nd(Fe,Co)B Magnets Due to Strengthening of Exchange Interaction-Computer Simulation</title><title>IEEE transactions on magnetics</title><addtitle>TMAG</addtitle><description><![CDATA[The effect of the strength of exchange interaction on the nucleation field <inline-formula> <tex-math notation="LaTeX">H_{N} </tex-math></inline-formula> was studied by computer simulation with varying temperature as well as the size of the non-magnetic phase for Nd(Fe,Co)B magnets composed of fine grains. It was clarified that the spatial distribution of demagnetizing field <inline-formula> <tex-math notation="LaTeX">H_{d} </tex-math></inline-formula> is widened by an increase in the size of the non-magnetic phase and that the ratio of the spatial size of <inline-formula> <tex-math notation="LaTeX">H_{d} </tex-math></inline-formula> to the exchange length <inline-formula> <tex-math notation="LaTeX">L_{\mathrm {ex}} </tex-math></inline-formula> is an important factor of determining <inline-formula> <tex-math notation="LaTeX">H_{N} </tex-math></inline-formula>. Resultantly, the increase in the exchange strength increased <inline-formula> <tex-math notation="LaTeX">H_{N} </tex-math></inline-formula>. Based on this calculation result, magnetic properties of Nd(Fe,Co)B magnets were simulated and it was found that a small amount of substitution of Co for Fe increases <inline-formula> <tex-math notation="LaTeX">L_{\mathrm {ex}} </tex-math></inline-formula> and resultantly improves <inline-formula> <tex-math notation="LaTeX">H_{N} </tex-math></inline-formula> at high temperatures.]]></description><subject>Cobalt</subject><subject>Computational modeling</subject><subject>Computer simulation</subject><subject>Demagnetization</subject><subject>Demagnetization field</subject><subject>Elementary particle exchange interactions</subject><subject>exchange length</subject><subject>Exchanging</subject><subject>Iron</subject><subject>Magnetic properties</subject><subject>Magnetism</subject><subject>Magnetization</subject><subject>Magnets</subject><subject>micromagnetics simulation</subject><subject>Nd–Fe–B</subject><subject>Neodymium</subject><subject>Nucleation</subject><subject>Perpendicular magnetic anisotropy</subject><subject>Spatial distribution</subject><subject>Temperature dependence</subject><issn>0018-9464</issn><issn>1941-0069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kE1LwzAYx4MoOF8-gHgJeFGwM0mTtjnq3HSwzcN2L2n6tFa6ZCYpuLNf3NaJp4c_z_8FfghdUTKmlMiHzfLxZcwIzcYs40lK4iM0opLTiJBEHqMR6V-R5Ak_RWfef_SSC0pG6HtutAPlATcGrzrdggqNNXjWQFtiW-GVMla7vQ-qbRsDeFXezuB-Yu-e8FLVBoLHzx3gYPE6ODB1eAfTmHqITr_0uzI14LkJ4JQeiqOJ3e66XuJ1s-3a37ELdFKp1sPl3z1Hm9l0M3mNFm8v88njItKMixBpIARIkVaSqTLTVaVinnIAIaqiUElKZcKZKDVPhCw5LxSXkJQZJVwJLWR8jm4OtTtnPzvwIf-wnTP9Ys4oozJOpUx7Fz24tLPeO6jynWu2yu1zSvIBdT6gzgfU-R_qPnN9yDQA8O_POGFM8PgH0BV7vA</recordid><startdate>20181101</startdate><enddate>20181101</enddate><creator>Fukunaga, H.</creator><creator>Harada, T.</creator><creator>Yanai, T.</creator><creator>Nakano, M.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-7990-3370</orcidid></search><sort><creationdate>20181101</creationdate><title>Increase in Nucleation Field of Nanocrystalline Nd(Fe,Co)B Magnets Due to Strengthening of Exchange Interaction-Computer Simulation</title><author>Fukunaga, H. ; Harada, T. ; Yanai, T. ; Nakano, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c245t-ce00e0b7f92ad8cffa3474ee55fbba67196425dc4659d44ba49e6d8104a5c593</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>Cobalt</topic><topic>Computational modeling</topic><topic>Computer simulation</topic><topic>Demagnetization</topic><topic>Demagnetization field</topic><topic>Elementary particle exchange interactions</topic><topic>exchange length</topic><topic>Exchanging</topic><topic>Iron</topic><topic>Magnetic properties</topic><topic>Magnetism</topic><topic>Magnetization</topic><topic>Magnets</topic><topic>micromagnetics simulation</topic><topic>Nd–Fe–B</topic><topic>Neodymium</topic><topic>Nucleation</topic><topic>Perpendicular magnetic anisotropy</topic><topic>Spatial distribution</topic><topic>Temperature dependence</topic><toplevel>online_resources</toplevel><creatorcontrib>Fukunaga, H.</creatorcontrib><creatorcontrib>Harada, T.</creatorcontrib><creatorcontrib>Yanai, T.</creatorcontrib><creatorcontrib>Nakano, M.</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998–Present</collection><collection>IEEE Xplore</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE transactions on magnetics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Fukunaga, H.</au><au>Harada, T.</au><au>Yanai, T.</au><au>Nakano, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Increase in Nucleation Field of Nanocrystalline Nd(Fe,Co)B Magnets Due to Strengthening of Exchange Interaction-Computer Simulation</atitle><jtitle>IEEE transactions on magnetics</jtitle><stitle>TMAG</stitle><date>2018-11-01</date><risdate>2018</risdate><volume>54</volume><issue>11</issue><spage>1</spage><epage>5</epage><pages>1-5</pages><issn>0018-9464</issn><eissn>1941-0069</eissn><coden>IEMGAQ</coden><abstract><![CDATA[The effect of the strength of exchange interaction on the nucleation field <inline-formula> <tex-math notation="LaTeX">H_{N} </tex-math></inline-formula> was studied by computer simulation with varying temperature as well as the size of the non-magnetic phase for Nd(Fe,Co)B magnets composed of fine grains. It was clarified that the spatial distribution of demagnetizing field <inline-formula> <tex-math notation="LaTeX">H_{d} </tex-math></inline-formula> is widened by an increase in the size of the non-magnetic phase and that the ratio of the spatial size of <inline-formula> <tex-math notation="LaTeX">H_{d} </tex-math></inline-formula> to the exchange length <inline-formula> <tex-math notation="LaTeX">L_{\mathrm {ex}} </tex-math></inline-formula> is an important factor of determining <inline-formula> <tex-math notation="LaTeX">H_{N} </tex-math></inline-formula>. Resultantly, the increase in the exchange strength increased <inline-formula> <tex-math notation="LaTeX">H_{N} </tex-math></inline-formula>. Based on this calculation result, magnetic properties of Nd(Fe,Co)B magnets were simulated and it was found that a small amount of substitution of Co for Fe increases <inline-formula> <tex-math notation="LaTeX">L_{\mathrm {ex}} </tex-math></inline-formula> and resultantly improves <inline-formula> <tex-math notation="LaTeX">H_{N} </tex-math></inline-formula> at high temperatures.]]></abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TMAG.2018.2846703</doi><tpages>5</tpages><orcidid>https://orcid.org/0000-0002-7990-3370</orcidid></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | ISSN: 0018-9464 |
| ispartof | IEEE transactions on magnetics, 2018-11, Vol.54 (11), p.1-5 |
| issn | 0018-9464 1941-0069 |
| language | eng |
| recordid | cdi_crossref_primary_10_1109_TMAG_2018_2846703 |
| source | IEEE Xplore |
| subjects | Cobalt Computational modeling Computer simulation Demagnetization Demagnetization field Elementary particle exchange interactions exchange length Exchanging Iron Magnetic properties Magnetism Magnetization Magnets micromagnetics simulation Nd–Fe–B Neodymium Nucleation Perpendicular magnetic anisotropy Spatial distribution Temperature dependence |
| title | Increase in Nucleation Field of Nanocrystalline Nd(Fe,Co)B Magnets Due to Strengthening of Exchange Interaction-Computer Simulation |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-22T14%3A39%3A02IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_RIE&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Increase%20in%20Nucleation%20Field%20of%20Nanocrystalline%20Nd(Fe,Co)B%20Magnets%20Due%20to%20Strengthening%20of%20Exchange%20Interaction-Computer%20Simulation&rft.jtitle=IEEE%20transactions%20on%20magnetics&rft.au=Fukunaga,%20H.&rft.date=2018-11-01&rft.volume=54&rft.issue=11&rft.spage=1&rft.epage=5&rft.pages=1-5&rft.issn=0018-9464&rft.eissn=1941-0069&rft.coden=IEMGAQ&rft_id=info:doi/10.1109/TMAG.2018.2846703&rft_dat=%3Cproquest_RIE%3E2121937997%3C/proquest_RIE%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2121937997&rft_id=info:pmid/&rft_ieee_id=8402254&rfr_iscdi=true |