Structural, magnetic and dielectric properties of Dy-Co substituted Sr-Ba-Mg-based magnetic oxides
In present research six samples of nano X-type hexagonal ferrites with general formula SrBaMg 2-x Co x Dy y Fe 28-y O 46 ( x = 0–1; y = 0–0.1 with step size of 0.2 and 0.02, respectively) were synthesized by sol–gel technique. The temperature required for the phase formation of these materials was...
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| Veröffentlicht in: | Applied physics. A, Materials science & processing Materials science & processing, 2021-11, Vol.127 (11), Article 872 |
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| creator | Lodhi, Maria Yousuf Khan, Muhammad Azhar Majeed, Abdul Akhtar, Majid Niaz Ahmad, Mukhtar Hussain, Altaf Islam, Misbah ul Nasar, Gulfam |
| description | In present research six samples of nano X-type hexagonal ferrites with general formula SrBaMg
2-x
Co
x
Dy
y
Fe
28-y
O
46
(
x
= 0–1;
y
= 0–0.1 with step size of 0.2 and 0.02, respectively) were synthesized by sol–gel technique. The temperature required for the phase formation of these materials was estimated using thermogravimetric analysis. X-ray diffraction patterns revealed the pure phase of the prepared materials up to the doping concentration of
x
= 0.4,
y
= 0.04 along with the second phase for higher doping concentration. The secondary phase appeared due to the solubility limit of higher ionic radius Dy
3+
ions into the hexagonal lattice. The mean crystalline size decreased from 29 to 18 nm while unit cell volume, bulk density, and X-ray density were increased with Dy-Co doping. Hysteresis loops showed that by incorporation of Dy-Co ions the saturation magnetization (M
s
) was enhanced from 50 to 60 emu.g
−1
. Also, coercivity (H
c
) varied in the range 1573–3251 Oe, such high values of M
s
and H
c
propose the utilization of these X-type materials as permanent magnets and perpendicular recording media. The dependence of dielectric parameters (dielectric constant, ac conductivity, Q-value) on frequency (1 MHz–3 GHz) as well as composition was discussed. Inclusion of Dy-Co in X-type lattice modified dielectric parameters i.e. dielectric constant, ac conductivity was increased. Complex modulus studies directed to elucidate Nyquist plots which exhibited a single half-circle for all X-type ferrites, thus depicting Debye sort of behavior. |
| doi_str_mv | 10.1007/s00339-021-05015-5 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2586501729</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2586501729</sourcerecordid><originalsourceid>FETCH-LOGICAL-c319t-e5a6af4b9fcd1f1c09a9d63f68fc6bc7fc1f635306f56fb2c8642abf219d6d6a3</originalsourceid><addsrcrecordid>eNp9kE9LAzEQxYMoWKtfwFPAq9FJsslujlrrH6h4qJ5DNpuULe1uTbJgv73RFb05l-HBe2-GH0LnFK4oQHkdAThXBBglIIAKIg7QhBacEZAcDtEEVFGSiit5jE5iXEOegrEJqpcpDDYNwWwu8dasOpdai03X4KZ1G2dTyHIX-p0LqXUR9x7f7cmsx3GoY2rTkFyDl4HcGvK8IrWJWf7W9B9t4-IpOvJmE93Zz56it_v56-yRLF4enmY3C2I5VYk4YaTxRa28bainFpRRjeReVt7K2pbeUi-54CC9kL5mtpIFM7VnNNsaafgUXYy9-d33wcWk1_0QunxSM1HJjKVkKrvY6LKhjzE4r3eh3Zqw1xT0F0s9stSZpf5mqUUO8TEUs7lbufBX_U_qExp2eDI</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2586501729</pqid></control><display><type>article</type><title>Structural, magnetic and dielectric properties of Dy-Co substituted Sr-Ba-Mg-based magnetic oxides</title><source>SpringerLink Journals (MCLS)</source><creator>Lodhi, Maria Yousuf ; Khan, Muhammad Azhar ; Majeed, Abdul ; Akhtar, Majid Niaz ; Ahmad, Mukhtar ; Hussain, Altaf ; Islam, Misbah ul ; Nasar, Gulfam</creator><creatorcontrib>Lodhi, Maria Yousuf ; Khan, Muhammad Azhar ; Majeed, Abdul ; Akhtar, Majid Niaz ; Ahmad, Mukhtar ; Hussain, Altaf ; Islam, Misbah ul ; Nasar, Gulfam</creatorcontrib><description>In present research six samples of nano X-type hexagonal ferrites with general formula SrBaMg
2-x
Co
x
Dy
y
Fe
28-y
O
46
(
x
= 0–1;
y
= 0–0.1 with step size of 0.2 and 0.02, respectively) were synthesized by sol–gel technique. The temperature required for the phase formation of these materials was estimated using thermogravimetric analysis. X-ray diffraction patterns revealed the pure phase of the prepared materials up to the doping concentration of
x
= 0.4,
y
= 0.04 along with the second phase for higher doping concentration. The secondary phase appeared due to the solubility limit of higher ionic radius Dy
3+
ions into the hexagonal lattice. The mean crystalline size decreased from 29 to 18 nm while unit cell volume, bulk density, and X-ray density were increased with Dy-Co doping. Hysteresis loops showed that by incorporation of Dy-Co ions the saturation magnetization (M
s
) was enhanced from 50 to 60 emu.g
−1
. Also, coercivity (H
c
) varied in the range 1573–3251 Oe, such high values of M
s
and H
c
propose the utilization of these X-type materials as permanent magnets and perpendicular recording media. The dependence of dielectric parameters (dielectric constant, ac conductivity, Q-value) on frequency (1 MHz–3 GHz) as well as composition was discussed. Inclusion of Dy-Co in X-type lattice modified dielectric parameters i.e. dielectric constant, ac conductivity was increased. Complex modulus studies directed to elucidate Nyquist plots which exhibited a single half-circle for all X-type ferrites, thus depicting Debye sort of behavior.</description><identifier>ISSN: 0947-8396</identifier><identifier>EISSN: 1432-0630</identifier><identifier>DOI: 10.1007/s00339-021-05015-5</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Applied physics ; Bulk density ; Characterization and Evaluation of Materials ; Coercivity ; Condensed Matter Physics ; Dielectric properties ; Diffraction patterns ; Doping ; Ferrites ; Hexagonal lattice ; Hysteresis loops ; Machines ; Magnetic properties ; Magnetic saturation ; Magnetic storage ; Manufacturing ; Materials science ; Nanotechnology ; Nyquist plots ; Optical and Electronic Materials ; Parameter modification ; Permanent magnets ; Permittivity ; Physics ; Physics and Astronomy ; Processes ; Recording instruments ; Sol-gel processes ; Surfaces and Interfaces ; Thermogravimetric analysis ; Thin Films ; Unit cell</subject><ispartof>Applied physics. A, Materials science & processing, 2021-11, Vol.127 (11), Article 872</ispartof><rights>The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature 2021</rights><rights>The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature 2021.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c319t-e5a6af4b9fcd1f1c09a9d63f68fc6bc7fc1f635306f56fb2c8642abf219d6d6a3</citedby><cites>FETCH-LOGICAL-c319t-e5a6af4b9fcd1f1c09a9d63f68fc6bc7fc1f635306f56fb2c8642abf219d6d6a3</cites><orcidid>0000-0002-1463-3031</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00339-021-05015-5$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00339-021-05015-5$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Lodhi, Maria Yousuf</creatorcontrib><creatorcontrib>Khan, Muhammad Azhar</creatorcontrib><creatorcontrib>Majeed, Abdul</creatorcontrib><creatorcontrib>Akhtar, Majid Niaz</creatorcontrib><creatorcontrib>Ahmad, Mukhtar</creatorcontrib><creatorcontrib>Hussain, Altaf</creatorcontrib><creatorcontrib>Islam, Misbah ul</creatorcontrib><creatorcontrib>Nasar, Gulfam</creatorcontrib><title>Structural, magnetic and dielectric properties of Dy-Co substituted Sr-Ba-Mg-based magnetic oxides</title><title>Applied physics. A, Materials science & processing</title><addtitle>Appl. Phys. A</addtitle><description>In present research six samples of nano X-type hexagonal ferrites with general formula SrBaMg
2-x
Co
x
Dy
y
Fe
28-y
O
46
(
x
= 0–1;
y
= 0–0.1 with step size of 0.2 and 0.02, respectively) were synthesized by sol–gel technique. The temperature required for the phase formation of these materials was estimated using thermogravimetric analysis. X-ray diffraction patterns revealed the pure phase of the prepared materials up to the doping concentration of
x
= 0.4,
y
= 0.04 along with the second phase for higher doping concentration. The secondary phase appeared due to the solubility limit of higher ionic radius Dy
3+
ions into the hexagonal lattice. The mean crystalline size decreased from 29 to 18 nm while unit cell volume, bulk density, and X-ray density were increased with Dy-Co doping. Hysteresis loops showed that by incorporation of Dy-Co ions the saturation magnetization (M
s
) was enhanced from 50 to 60 emu.g
−1
. Also, coercivity (H
c
) varied in the range 1573–3251 Oe, such high values of M
s
and H
c
propose the utilization of these X-type materials as permanent magnets and perpendicular recording media. The dependence of dielectric parameters (dielectric constant, ac conductivity, Q-value) on frequency (1 MHz–3 GHz) as well as composition was discussed. Inclusion of Dy-Co in X-type lattice modified dielectric parameters i.e. dielectric constant, ac conductivity was increased. Complex modulus studies directed to elucidate Nyquist plots which exhibited a single half-circle for all X-type ferrites, thus depicting Debye sort of behavior.</description><subject>Applied physics</subject><subject>Bulk density</subject><subject>Characterization and Evaluation of Materials</subject><subject>Coercivity</subject><subject>Condensed Matter Physics</subject><subject>Dielectric properties</subject><subject>Diffraction patterns</subject><subject>Doping</subject><subject>Ferrites</subject><subject>Hexagonal lattice</subject><subject>Hysteresis loops</subject><subject>Machines</subject><subject>Magnetic properties</subject><subject>Magnetic saturation</subject><subject>Magnetic storage</subject><subject>Manufacturing</subject><subject>Materials science</subject><subject>Nanotechnology</subject><subject>Nyquist plots</subject><subject>Optical and Electronic Materials</subject><subject>Parameter modification</subject><subject>Permanent magnets</subject><subject>Permittivity</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Processes</subject><subject>Recording instruments</subject><subject>Sol-gel processes</subject><subject>Surfaces and Interfaces</subject><subject>Thermogravimetric analysis</subject><subject>Thin Films</subject><subject>Unit cell</subject><issn>0947-8396</issn><issn>1432-0630</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp9kE9LAzEQxYMoWKtfwFPAq9FJsslujlrrH6h4qJ5DNpuULe1uTbJgv73RFb05l-HBe2-GH0LnFK4oQHkdAThXBBglIIAKIg7QhBacEZAcDtEEVFGSiit5jE5iXEOegrEJqpcpDDYNwWwu8dasOpdai03X4KZ1G2dTyHIX-p0LqXUR9x7f7cmsx3GoY2rTkFyDl4HcGvK8IrWJWf7W9B9t4-IpOvJmE93Zz56it_v56-yRLF4enmY3C2I5VYk4YaTxRa28bainFpRRjeReVt7K2pbeUi-54CC9kL5mtpIFM7VnNNsaafgUXYy9-d33wcWk1_0QunxSM1HJjKVkKrvY6LKhjzE4r3eh3Zqw1xT0F0s9stSZpf5mqUUO8TEUs7lbufBX_U_qExp2eDI</recordid><startdate>20211101</startdate><enddate>20211101</enddate><creator>Lodhi, Maria Yousuf</creator><creator>Khan, Muhammad Azhar</creator><creator>Majeed, Abdul</creator><creator>Akhtar, Majid Niaz</creator><creator>Ahmad, Mukhtar</creator><creator>Hussain, Altaf</creator><creator>Islam, Misbah ul</creator><creator>Nasar, Gulfam</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-1463-3031</orcidid></search><sort><creationdate>20211101</creationdate><title>Structural, magnetic and dielectric properties of Dy-Co substituted Sr-Ba-Mg-based magnetic oxides</title><author>Lodhi, Maria Yousuf ; Khan, Muhammad Azhar ; Majeed, Abdul ; Akhtar, Majid Niaz ; Ahmad, Mukhtar ; Hussain, Altaf ; Islam, Misbah ul ; Nasar, Gulfam</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c319t-e5a6af4b9fcd1f1c09a9d63f68fc6bc7fc1f635306f56fb2c8642abf219d6d6a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Applied physics</topic><topic>Bulk density</topic><topic>Characterization and Evaluation of Materials</topic><topic>Coercivity</topic><topic>Condensed Matter Physics</topic><topic>Dielectric properties</topic><topic>Diffraction patterns</topic><topic>Doping</topic><topic>Ferrites</topic><topic>Hexagonal lattice</topic><topic>Hysteresis loops</topic><topic>Machines</topic><topic>Magnetic properties</topic><topic>Magnetic saturation</topic><topic>Magnetic storage</topic><topic>Manufacturing</topic><topic>Materials science</topic><topic>Nanotechnology</topic><topic>Nyquist plots</topic><topic>Optical and Electronic Materials</topic><topic>Parameter modification</topic><topic>Permanent magnets</topic><topic>Permittivity</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Processes</topic><topic>Recording instruments</topic><topic>Sol-gel processes</topic><topic>Surfaces and Interfaces</topic><topic>Thermogravimetric analysis</topic><topic>Thin Films</topic><topic>Unit cell</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lodhi, Maria Yousuf</creatorcontrib><creatorcontrib>Khan, Muhammad Azhar</creatorcontrib><creatorcontrib>Majeed, Abdul</creatorcontrib><creatorcontrib>Akhtar, Majid Niaz</creatorcontrib><creatorcontrib>Ahmad, Mukhtar</creatorcontrib><creatorcontrib>Hussain, Altaf</creatorcontrib><creatorcontrib>Islam, Misbah ul</creatorcontrib><creatorcontrib>Nasar, Gulfam</creatorcontrib><collection>CrossRef</collection><jtitle>Applied physics. A, Materials science & processing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lodhi, Maria Yousuf</au><au>Khan, Muhammad Azhar</au><au>Majeed, Abdul</au><au>Akhtar, Majid Niaz</au><au>Ahmad, Mukhtar</au><au>Hussain, Altaf</au><au>Islam, Misbah ul</au><au>Nasar, Gulfam</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Structural, magnetic and dielectric properties of Dy-Co substituted Sr-Ba-Mg-based magnetic oxides</atitle><jtitle>Applied physics. A, Materials science & processing</jtitle><stitle>Appl. Phys. A</stitle><date>2021-11-01</date><risdate>2021</risdate><volume>127</volume><issue>11</issue><artnum>872</artnum><issn>0947-8396</issn><eissn>1432-0630</eissn><abstract>In present research six samples of nano X-type hexagonal ferrites with general formula SrBaMg
2-x
Co
x
Dy
y
Fe
28-y
O
46
(
x
= 0–1;
y
= 0–0.1 with step size of 0.2 and 0.02, respectively) were synthesized by sol–gel technique. The temperature required for the phase formation of these materials was estimated using thermogravimetric analysis. X-ray diffraction patterns revealed the pure phase of the prepared materials up to the doping concentration of
x
= 0.4,
y
= 0.04 along with the second phase for higher doping concentration. The secondary phase appeared due to the solubility limit of higher ionic radius Dy
3+
ions into the hexagonal lattice. The mean crystalline size decreased from 29 to 18 nm while unit cell volume, bulk density, and X-ray density were increased with Dy-Co doping. Hysteresis loops showed that by incorporation of Dy-Co ions the saturation magnetization (M
s
) was enhanced from 50 to 60 emu.g
−1
. Also, coercivity (H
c
) varied in the range 1573–3251 Oe, such high values of M
s
and H
c
propose the utilization of these X-type materials as permanent magnets and perpendicular recording media. The dependence of dielectric parameters (dielectric constant, ac conductivity, Q-value) on frequency (1 MHz–3 GHz) as well as composition was discussed. Inclusion of Dy-Co in X-type lattice modified dielectric parameters i.e. dielectric constant, ac conductivity was increased. Complex modulus studies directed to elucidate Nyquist plots which exhibited a single half-circle for all X-type ferrites, thus depicting Debye sort of behavior.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s00339-021-05015-5</doi><orcidid>https://orcid.org/0000-0002-1463-3031</orcidid></addata></record> |
| fulltext | fulltext |
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| ispartof | Applied physics. A, Materials science & processing, 2021-11, Vol.127 (11), Article 872 |
| issn | 0947-8396 1432-0630 |
| language | eng |
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| source | SpringerLink Journals (MCLS) |
| subjects | Applied physics Bulk density Characterization and Evaluation of Materials Coercivity Condensed Matter Physics Dielectric properties Diffraction patterns Doping Ferrites Hexagonal lattice Hysteresis loops Machines Magnetic properties Magnetic saturation Magnetic storage Manufacturing Materials science Nanotechnology Nyquist plots Optical and Electronic Materials Parameter modification Permanent magnets Permittivity Physics Physics and Astronomy Processes Recording instruments Sol-gel processes Surfaces and Interfaces Thermogravimetric analysis Thin Films Unit cell |
| title | Structural, magnetic and dielectric properties of Dy-Co substituted Sr-Ba-Mg-based magnetic oxides |
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