Photothermal characterization of inhomogeneous ferromagnetic resonance absorption in ferrites
The depth and lateral dependence of ferromagnetic resonance (FMR) microwave absorption of a plate of sintered Ni ferrite has been studied at 9.35 GHz using photoacoustic detection and the photothermal laser-beam deflection technique. The photoacoustic response of the sample has been measured with a...
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| Veröffentlicht in: | Journal of applied physics 1988-04, Vol.63 (8), p.3347-3349 |
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| container_end_page | 3349 |
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| container_issue | 8 |
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| container_title | Journal of applied physics |
| container_volume | 63 |
| creator | Geisau, O. V. Netzelmann, U. Pelzl, J. |
| description | The depth and lateral dependence of ferromagnetic resonance (FMR) microwave absorption of a plate of sintered Ni ferrite has been studied at 9.35 GHz using photoacoustic detection and the photothermal laser-beam deflection technique. The photoacoustic response of the sample has been measured with a microwave input of 200 mW at modulation frequencies from 10 Hz to 5 kHz, corresponding to thermal depths of 200 to 9 μm. A significant depth dependence of the absorbed microwave power density contributing to a conventionally recorded FMR spectrum has been found. Lateral resolved resonance spectra from the same ferrite have been obtained by using the photothermal laser-beam deflection technique with a power input up to 7 W. Spatial dependences of standing-wave body-resonance modes as well as local variations of the demagnetization field inside the sample were observed. The lateral resolution achieved was about 200 μm. |
| doi_str_mv | 10.1063/1.340777 |
| format | Article |
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Spatial dependences of standing-wave body-resonance modes as well as local variations of the demagnetization field inside the sample were observed. The lateral resolution achieved was about 200 μm.</description><identifier>ISSN: 0021-8979</identifier><identifier>EISSN: 1089-7550</identifier><identifier>DOI: 10.1063/1.340777</identifier><language>eng</language><ispartof>Journal of applied physics, 1988-04, Vol.63 (8), p.3347-3349</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c225t-d1fe633c6d9027e490c4da95efb5c0f6a761017b08a4e8c034572698d3e893583</citedby><cites>FETCH-LOGICAL-c225t-d1fe633c6d9027e490c4da95efb5c0f6a761017b08a4e8c034572698d3e893583</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,27905,27906</link.rule.ids></links><search><creatorcontrib>Geisau, O. V.</creatorcontrib><creatorcontrib>Netzelmann, U.</creatorcontrib><creatorcontrib>Pelzl, J.</creatorcontrib><title>Photothermal characterization of inhomogeneous ferromagnetic resonance absorption in ferrites</title><title>Journal of applied physics</title><description>The depth and lateral dependence of ferromagnetic resonance (FMR) microwave absorption of a plate of sintered Ni ferrite has been studied at 9.35 GHz using photoacoustic detection and the photothermal laser-beam deflection technique. The photoacoustic response of the sample has been measured with a microwave input of 200 mW at modulation frequencies from 10 Hz to 5 kHz, corresponding to thermal depths of 200 to 9 μm. A significant depth dependence of the absorbed microwave power density contributing to a conventionally recorded FMR spectrum has been found. Lateral resolved resonance spectra from the same ferrite have been obtained by using the photothermal laser-beam deflection technique with a power input up to 7 W. Spatial dependences of standing-wave body-resonance modes as well as local variations of the demagnetization field inside the sample were observed. The lateral resolution achieved was about 200 μm.</description><issn>0021-8979</issn><issn>1089-7550</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1988</creationdate><recordtype>article</recordtype><recordid>eNotkL1OwzAYRS0EEqEg8QgeWVI-x_HfiCr-pEowwIgi1_ncGDV2ZZsBnh7RMp3lnjscQq4ZLBlIfsuWvAel1AlpGGjTKiHglDQAHWu1UeacXJTyCcCY5qYhH69TqqlOmGe7o26y2bqKOfzYGlKkydMQpzSnLUZMX4V6zDnNdhuxBkczlhRtdEjtpqS8PzghHlahYrkkZ97uCl79c0HeH-7fVk_t-uXxeXW3bl3XidqOzKPk3MnRQKewN-D60RqBfiMceGmVZMDUBrTtUTvgvVCdNHrkqA0Xmi_IzfHX5VRKRj_sc5ht_h4YDH9ZBjYcs_BfoPVWvA</recordid><startdate>19880415</startdate><enddate>19880415</enddate><creator>Geisau, O. 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V.</creatorcontrib><creatorcontrib>Netzelmann, U.</creatorcontrib><creatorcontrib>Pelzl, J.</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of applied physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Geisau, O. V.</au><au>Netzelmann, U.</au><au>Pelzl, J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Photothermal characterization of inhomogeneous ferromagnetic resonance absorption in ferrites</atitle><jtitle>Journal of applied physics</jtitle><date>1988-04-15</date><risdate>1988</risdate><volume>63</volume><issue>8</issue><spage>3347</spage><epage>3349</epage><pages>3347-3349</pages><issn>0021-8979</issn><eissn>1089-7550</eissn><abstract>The depth and lateral dependence of ferromagnetic resonance (FMR) microwave absorption of a plate of sintered Ni ferrite has been studied at 9.35 GHz using photoacoustic detection and the photothermal laser-beam deflection technique. The photoacoustic response of the sample has been measured with a microwave input of 200 mW at modulation frequencies from 10 Hz to 5 kHz, corresponding to thermal depths of 200 to 9 μm. A significant depth dependence of the absorbed microwave power density contributing to a conventionally recorded FMR spectrum has been found. Lateral resolved resonance spectra from the same ferrite have been obtained by using the photothermal laser-beam deflection technique with a power input up to 7 W. Spatial dependences of standing-wave body-resonance modes as well as local variations of the demagnetization field inside the sample were observed. The lateral resolution achieved was about 200 μm.</abstract><doi>10.1063/1.340777</doi><tpages>3</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0021-8979 |
| ispartof | Journal of applied physics, 1988-04, Vol.63 (8), p.3347-3349 |
| issn | 0021-8979 1089-7550 |
| language | eng |
| recordid | cdi_crossref_primary_10_1063_1_340777 |
| source | AIP Digital Archive |
| title | Photothermal characterization of inhomogeneous ferromagnetic resonance absorption in ferrites |
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