Magnetic, thermal and magnetocaloric studies of polycrystalline HoMnO3 compound
Polycrystalline HoMnO 3 (HMO) samples were prepared through the solid-state reaction method to study their magnetic, thermal and magnetocaloric properties. X-ray diffraction studies revealed that the sample crystallized in hexagonal structure with P63cm space group. Low-temperature magnetization mea...
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| Veröffentlicht in: | Applied physics. A, Materials science & processing Materials science & processing, 2019-07, Vol.125 (7), p.1-7, Article 487 |
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| container_title | Applied physics. A, Materials science & processing |
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| creator | Pavan Kumar, N. Singh, Durgesh Patidar, Manju Mishra Satapathy, Jyotirmayee Ganesan, V. Babu, P. D. Srinivas, A. Raja, M. Manivel |
| description | Polycrystalline HoMnO
3
(HMO) samples were prepared through the solid-state reaction method to study their magnetic, thermal and magnetocaloric properties. X-ray diffraction studies revealed that the sample crystallized in hexagonal structure with
P63cm
space group. Low-temperature magnetization measurements showed an anomaly at 4 K, whereas the heat capacity measurements carried out under 0 T, 2 T, 5 T and 9 T fields in the temperature region of 2–150 K exhibited three different transitions at 72 K, 33 K and 5 K. These transitions are attributed to the ordering of Mn
3+
, spin reorientation of Mn
3+
ions and Ho
3+
ions, respectively. Magnetic contribution to the total entropy change was also evaluated at different magnetic fields. Magnetocaloric effect (MCE) parameters such as isothermal entropy change of 2 J/kg-K, 9 J/kg-K and 16 J/kg-K were obtained at around 10 K for a magnetic field change of 2T, 5T and 9T, respectively. The adiabatic temperature change (Δ
T
) values are found to be 0.6 K, 3.5 K and 8.5 K, whereas the relative cooling power (RCP) is found to be 4 J/kg, 120 J/kg and 360 J/kg under 2T, 5T and 9T magnetic field change, respectively. |
| doi_str_mv | 10.1007/s00339-019-2776-5 |
| format | Article |
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3
(HMO) samples were prepared through the solid-state reaction method to study their magnetic, thermal and magnetocaloric properties. X-ray diffraction studies revealed that the sample crystallized in hexagonal structure with
P63cm
space group. Low-temperature magnetization measurements showed an anomaly at 4 K, whereas the heat capacity measurements carried out under 0 T, 2 T, 5 T and 9 T fields in the temperature region of 2–150 K exhibited three different transitions at 72 K, 33 K and 5 K. These transitions are attributed to the ordering of Mn
3+
, spin reorientation of Mn
3+
ions and Ho
3+
ions, respectively. Magnetic contribution to the total entropy change was also evaluated at different magnetic fields. Magnetocaloric effect (MCE) parameters such as isothermal entropy change of 2 J/kg-K, 9 J/kg-K and 16 J/kg-K were obtained at around 10 K for a magnetic field change of 2T, 5T and 9T, respectively. The adiabatic temperature change (Δ
T
) values are found to be 0.6 K, 3.5 K and 8.5 K, whereas the relative cooling power (RCP) is found to be 4 J/kg, 120 J/kg and 360 J/kg under 2T, 5T and 9T magnetic field change, respectively.</description><identifier>ISSN: 0947-8396</identifier><identifier>EISSN: 1432-0630</identifier><identifier>DOI: 10.1007/s00339-019-2776-5</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Applied physics ; Characterization and Evaluation of Materials ; Condensed Matter Physics ; Crystallization ; Entropy ; Holmium ; Machines ; Magnetic fields ; Magnetic properties ; Magnetism ; Manganese ions ; Manufacturing ; Materials science ; Nanotechnology ; Optical and Electronic Materials ; Physics ; Physics and Astronomy ; Polycrystals ; Processes ; Surfaces and Interfaces ; Thin Films ; X-ray diffraction</subject><ispartof>Applied physics. A, Materials science & processing, 2019-07, Vol.125 (7), p.1-7, Article 487</ispartof><rights>Springer-Verlag GmbH Germany, part of Springer Nature 2019</rights><rights>Copyright Springer Nature B.V. 2019</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c316t-773167d474d50a07fd32ab41e636dac073b4a6a28eeaf32f84597193426cc2c53</citedby><cites>FETCH-LOGICAL-c316t-773167d474d50a07fd32ab41e636dac073b4a6a28eeaf32f84597193426cc2c53</cites><orcidid>0000-0002-1040-8064</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/s00339-019-2776-5$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00339-019-2776-5$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Pavan Kumar, N.</creatorcontrib><creatorcontrib>Singh, Durgesh</creatorcontrib><creatorcontrib>Patidar, Manju Mishra</creatorcontrib><creatorcontrib>Satapathy, Jyotirmayee</creatorcontrib><creatorcontrib>Ganesan, V.</creatorcontrib><creatorcontrib>Babu, P. D.</creatorcontrib><creatorcontrib>Srinivas, A.</creatorcontrib><creatorcontrib>Raja, M. Manivel</creatorcontrib><title>Magnetic, thermal and magnetocaloric studies of polycrystalline HoMnO3 compound</title><title>Applied physics. A, Materials science & processing</title><addtitle>Appl. Phys. A</addtitle><description>Polycrystalline HoMnO
3
(HMO) samples were prepared through the solid-state reaction method to study their magnetic, thermal and magnetocaloric properties. X-ray diffraction studies revealed that the sample crystallized in hexagonal structure with
P63cm
space group. Low-temperature magnetization measurements showed an anomaly at 4 K, whereas the heat capacity measurements carried out under 0 T, 2 T, 5 T and 9 T fields in the temperature region of 2–150 K exhibited three different transitions at 72 K, 33 K and 5 K. These transitions are attributed to the ordering of Mn
3+
, spin reorientation of Mn
3+
ions and Ho
3+
ions, respectively. Magnetic contribution to the total entropy change was also evaluated at different magnetic fields. Magnetocaloric effect (MCE) parameters such as isothermal entropy change of 2 J/kg-K, 9 J/kg-K and 16 J/kg-K were obtained at around 10 K for a magnetic field change of 2T, 5T and 9T, respectively. The adiabatic temperature change (Δ
T
) values are found to be 0.6 K, 3.5 K and 8.5 K, whereas the relative cooling power (RCP) is found to be 4 J/kg, 120 J/kg and 360 J/kg under 2T, 5T and 9T magnetic field change, respectively.</description><subject>Applied physics</subject><subject>Characterization and Evaluation of Materials</subject><subject>Condensed Matter Physics</subject><subject>Crystallization</subject><subject>Entropy</subject><subject>Holmium</subject><subject>Machines</subject><subject>Magnetic fields</subject><subject>Magnetic properties</subject><subject>Magnetism</subject><subject>Manganese ions</subject><subject>Manufacturing</subject><subject>Materials science</subject><subject>Nanotechnology</subject><subject>Optical and Electronic Materials</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Polycrystals</subject><subject>Processes</subject><subject>Surfaces and Interfaces</subject><subject>Thin Films</subject><subject>X-ray diffraction</subject><issn>0947-8396</issn><issn>1432-0630</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp1kM1KxDAURoMoOI4-gLuAW6P5a9IuZVBHmKEbXYdMko4d2qQm7WLe3owVXHk3Fy7fdy4cAG4JfiAYy8eEMWMVwqRCVEqBijOwIJxRhAXD52CBKy5RySpxCa5SOuA8nNIFqLd6793Ymns4frrY6w5qb2H_cw1GdyG2BqZxsq1LMDRwCN3RxGMadde13sF12PqaQRP6IUzeXoOLRnfJ3fzuJfh4eX5frdGmfn1bPW2QYUSMSMq8pOWS2wJrLBvLqN5x4gQTVhss2Y5roWnpnG4YbUpeVJJUjFNhDDUFW4K7mTvE8DW5NKpDmKLPLxWlBSElyfycInPKxJBSdI0aYtvreFQEq5M3NXtT2Zs6eVMnMp07KWf93sU_8v-lb0yGb84</recordid><startdate>20190701</startdate><enddate>20190701</enddate><creator>Pavan Kumar, N.</creator><creator>Singh, Durgesh</creator><creator>Patidar, Manju Mishra</creator><creator>Satapathy, Jyotirmayee</creator><creator>Ganesan, V.</creator><creator>Babu, P. D.</creator><creator>Srinivas, A.</creator><creator>Raja, M. Manivel</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-1040-8064</orcidid></search><sort><creationdate>20190701</creationdate><title>Magnetic, thermal and magnetocaloric studies of polycrystalline HoMnO3 compound</title><author>Pavan Kumar, N. ; Singh, Durgesh ; Patidar, Manju Mishra ; Satapathy, Jyotirmayee ; Ganesan, V. ; Babu, P. D. ; Srinivas, A. ; Raja, M. Manivel</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c316t-773167d474d50a07fd32ab41e636dac073b4a6a28eeaf32f84597193426cc2c53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Applied physics</topic><topic>Characterization and Evaluation of Materials</topic><topic>Condensed Matter Physics</topic><topic>Crystallization</topic><topic>Entropy</topic><topic>Holmium</topic><topic>Machines</topic><topic>Magnetic fields</topic><topic>Magnetic properties</topic><topic>Magnetism</topic><topic>Manganese ions</topic><topic>Manufacturing</topic><topic>Materials science</topic><topic>Nanotechnology</topic><topic>Optical and Electronic Materials</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Polycrystals</topic><topic>Processes</topic><topic>Surfaces and Interfaces</topic><topic>Thin Films</topic><topic>X-ray diffraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Pavan Kumar, N.</creatorcontrib><creatorcontrib>Singh, Durgesh</creatorcontrib><creatorcontrib>Patidar, Manju Mishra</creatorcontrib><creatorcontrib>Satapathy, Jyotirmayee</creatorcontrib><creatorcontrib>Ganesan, V.</creatorcontrib><creatorcontrib>Babu, P. D.</creatorcontrib><creatorcontrib>Srinivas, A.</creatorcontrib><creatorcontrib>Raja, M. Manivel</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>Pavan Kumar, N.</au><au>Singh, Durgesh</au><au>Patidar, Manju Mishra</au><au>Satapathy, Jyotirmayee</au><au>Ganesan, V.</au><au>Babu, P. D.</au><au>Srinivas, A.</au><au>Raja, M. Manivel</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Magnetic, thermal and magnetocaloric studies of polycrystalline HoMnO3 compound</atitle><jtitle>Applied physics. A, Materials science & processing</jtitle><stitle>Appl. Phys. A</stitle><date>2019-07-01</date><risdate>2019</risdate><volume>125</volume><issue>7</issue><spage>1</spage><epage>7</epage><pages>1-7</pages><artnum>487</artnum><issn>0947-8396</issn><eissn>1432-0630</eissn><abstract>Polycrystalline HoMnO
3
(HMO) samples were prepared through the solid-state reaction method to study their magnetic, thermal and magnetocaloric properties. X-ray diffraction studies revealed that the sample crystallized in hexagonal structure with
P63cm
space group. Low-temperature magnetization measurements showed an anomaly at 4 K, whereas the heat capacity measurements carried out under 0 T, 2 T, 5 T and 9 T fields in the temperature region of 2–150 K exhibited three different transitions at 72 K, 33 K and 5 K. These transitions are attributed to the ordering of Mn
3+
, spin reorientation of Mn
3+
ions and Ho
3+
ions, respectively. Magnetic contribution to the total entropy change was also evaluated at different magnetic fields. Magnetocaloric effect (MCE) parameters such as isothermal entropy change of 2 J/kg-K, 9 J/kg-K and 16 J/kg-K were obtained at around 10 K for a magnetic field change of 2T, 5T and 9T, respectively. The adiabatic temperature change (Δ
T
) values are found to be 0.6 K, 3.5 K and 8.5 K, whereas the relative cooling power (RCP) is found to be 4 J/kg, 120 J/kg and 360 J/kg under 2T, 5T and 9T magnetic field change, respectively.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><doi>10.1007/s00339-019-2776-5</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0002-1040-8064</orcidid></addata></record> |
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| subjects | Applied physics Characterization and Evaluation of Materials Condensed Matter Physics Crystallization Entropy Holmium Machines Magnetic fields Magnetic properties Magnetism Manganese ions Manufacturing Materials science Nanotechnology Optical and Electronic Materials Physics Physics and Astronomy Polycrystals Processes Surfaces and Interfaces Thin Films X-ray diffraction |
| title | Magnetic, thermal and magnetocaloric studies of polycrystalline HoMnO3 compound |
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