Anisotropic vortex flux behavior in grain-oriented YBa2Cu3O7
Magnetization vector measurements M from field cooled (FC) and zero field cooled (ZFC) states were performed on a grain-oriented YBa2Cu3O7 rotated in fixed magnetic field H initially applied along the c-axis at 4.2K. Our results show that for the low field regime (H=0.5kOe), the vortex flux density...
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| Veröffentlicht in: | Journal of alloys and compounds 2004-07, Vol.375 (1-2), p.34-38 |
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| creator | Hasan Qaseer, M.K |
| description | Magnetization vector measurements M from field cooled (FC) and zero field cooled (ZFC) states were performed on a grain-oriented YBa2Cu3O7 rotated in fixed magnetic field H initially applied along the c-axis at 4.2K. Our results show that for the low field regime (H=0.5kOe), the vortex flux density B stays close to the ab-plane over a wide range of the rotational angle θ, and associated with a frictional behavior of B relative to the sample rotation in this range of θ. Also, B increases very slowly in this range of θ which means that the initial vortices along the c-axis are strongly pinned inhibiting the creation of more vortices along the ab-plane. For the high field regime, B increases with θ up to 70° and then decreases above this angle. The orientation θB of B relative to H shows two peaks at H=3kOe and another peak for H>4kOe. These peaks shift toward 90° as H is increased. Moreover, as θ exceeds 70° in the range of 70° |
| doi_str_mv | 10.1016/j.jallcom.2003.11.048 |
| format | Article |
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Our results show that for the low field regime (H=0.5kOe), the vortex flux density B stays close to the ab-plane over a wide range of the rotational angle θ, and associated with a frictional behavior of B relative to the sample rotation in this range of θ. Also, B increases very slowly in this range of θ which means that the initial vortices along the c-axis are strongly pinned inhibiting the creation of more vortices along the ab-plane. For the high field regime, B increases with θ up to 70° and then decreases above this angle. The orientation θB of B relative to H shows two peaks at H=3kOe and another peak for H>4kOe. These peaks shift toward 90° as H is increased. Moreover, as θ exceeds 70° in the range of 70°<θ<110°, new types of vortices are formed and B is aligned close to the ab-plane. The torque density τ experienced by the vortices increases almost linearly with θ for the different fields up to 70°, and as θ exceeds 70° it changes to a higher slope before reversing its sign abruptly around 90°. This behavior of τ confirms the formation of new type of vortices for 70°<θ<110°.</description><identifier>ISSN: 0925-8388</identifier><identifier>EISSN: 1873-4669</identifier><identifier>DOI: 10.1016/j.jallcom.2003.11.048</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Anisotropy ; Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Exact sciences and technology ; Magnetic measurements ; Physics ; Properties of type I and type II superconductors ; Rare earth compounds ; Superconductivity ; Superconductors ; Vortex lattices ,flux pinning, flux creep</subject><ispartof>Journal of alloys and compounds, 2004-07, Vol.375 (1-2), p.34-38</ispartof><rights>2003 Elsevier B.V.</rights><rights>2004 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c300t-79e34ba22a1a3807ab24ee6b1d38d7433e969507af7682f10d22962c886df4b33</citedby><cites>FETCH-LOGICAL-c300t-79e34ba22a1a3807ab24ee6b1d38d7433e969507af7682f10d22962c886df4b33</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jallcom.2003.11.048$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=15915440$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Hasan Qaseer, M.K</creatorcontrib><title>Anisotropic vortex flux behavior in grain-oriented YBa2Cu3O7</title><title>Journal of alloys and compounds</title><description>Magnetization vector measurements M from field cooled (FC) and zero field cooled (ZFC) states were performed on a grain-oriented YBa2Cu3O7 rotated in fixed magnetic field H initially applied along the c-axis at 4.2K. Our results show that for the low field regime (H=0.5kOe), the vortex flux density B stays close to the ab-plane over a wide range of the rotational angle θ, and associated with a frictional behavior of B relative to the sample rotation in this range of θ. Also, B increases very slowly in this range of θ which means that the initial vortices along the c-axis are strongly pinned inhibiting the creation of more vortices along the ab-plane. For the high field regime, B increases with θ up to 70° and then decreases above this angle. The orientation θB of B relative to H shows two peaks at H=3kOe and another peak for H>4kOe. These peaks shift toward 90° as H is increased. Moreover, as θ exceeds 70° in the range of 70°<θ<110°, new types of vortices are formed and B is aligned close to the ab-plane. The torque density τ experienced by the vortices increases almost linearly with θ for the different fields up to 70°, and as θ exceeds 70° it changes to a higher slope before reversing its sign abruptly around 90°. This behavior of τ confirms the formation of new type of vortices for 70°<θ<110°.</description><subject>Anisotropy</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Exact sciences and technology</subject><subject>Magnetic measurements</subject><subject>Physics</subject><subject>Properties of type I and type II superconductors</subject><subject>Rare earth compounds</subject><subject>Superconductivity</subject><subject>Superconductors</subject><subject>Vortex lattices ,flux pinning, flux creep</subject><issn>0925-8388</issn><issn>1873-4669</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNqFkE1LAzEQhoMoWKs_QdiL3nbNJPuRgCBa_IJCL3rwFLLZWc2y3dRkW-q_N6UFjzKHgeF5Z5iHkEugGVAob7qs031v3DJjlPIMIKO5OCITEBVP87KUx2RCJStSwYU4JWchdJRSkBwm5PZ-sMGN3q2sSTbOj7hN2n69TWr80hvrfGKH5NNrO6TOWxxGbJKPB81ma76ozslJq_uAF4c-Je9Pj2-zl3S-eH6d3c9Twykd00oiz2vNmAbNBa10zXLEsoaGi6bKOUdZyiLO26oUrAXaMCZLZoQomzavOZ-S6_3elXffawyjWtpgsO_1gG4dFBOxJEAEiz1ovAvBY6tW3i61_1FA1c6V6tTBldq5UgAquoq5q8MBHYzuW68HY8NfuJBQ5DmN3N2ew_jtxqJXwUQpBhvr0YyqcfafS7-9A4Ci</recordid><startdate>20040728</startdate><enddate>20040728</enddate><creator>Hasan Qaseer, M.K</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>H8D</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20040728</creationdate><title>Anisotropic vortex flux behavior in grain-oriented YBa2Cu3O7</title><author>Hasan Qaseer, M.K</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c300t-79e34ba22a1a3807ab24ee6b1d38d7433e969507af7682f10d22962c886df4b33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Anisotropy</topic><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Exact sciences and technology</topic><topic>Magnetic measurements</topic><topic>Physics</topic><topic>Properties of type I and type II superconductors</topic><topic>Rare earth compounds</topic><topic>Superconductivity</topic><topic>Superconductors</topic><topic>Vortex lattices ,flux pinning, flux creep</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hasan Qaseer, M.K</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of alloys and compounds</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hasan Qaseer, M.K</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Anisotropic vortex flux behavior in grain-oriented YBa2Cu3O7</atitle><jtitle>Journal of alloys and compounds</jtitle><date>2004-07-28</date><risdate>2004</risdate><volume>375</volume><issue>1-2</issue><spage>34</spage><epage>38</epage><pages>34-38</pages><issn>0925-8388</issn><eissn>1873-4669</eissn><abstract>Magnetization vector measurements M from field cooled (FC) and zero field cooled (ZFC) states were performed on a grain-oriented YBa2Cu3O7 rotated in fixed magnetic field H initially applied along the c-axis at 4.2K. Our results show that for the low field regime (H=0.5kOe), the vortex flux density B stays close to the ab-plane over a wide range of the rotational angle θ, and associated with a frictional behavior of B relative to the sample rotation in this range of θ. Also, B increases very slowly in this range of θ which means that the initial vortices along the c-axis are strongly pinned inhibiting the creation of more vortices along the ab-plane. For the high field regime, B increases with θ up to 70° and then decreases above this angle. The orientation θB of B relative to H shows two peaks at H=3kOe and another peak for H>4kOe. These peaks shift toward 90° as H is increased. Moreover, as θ exceeds 70° in the range of 70°<θ<110°, new types of vortices are formed and B is aligned close to the ab-plane. The torque density τ experienced by the vortices increases almost linearly with θ for the different fields up to 70°, and as θ exceeds 70° it changes to a higher slope before reversing its sign abruptly around 90°. This behavior of τ confirms the formation of new type of vortices for 70°<θ<110°.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jallcom.2003.11.048</doi><tpages>5</tpages></addata></record> |
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| subjects | Anisotropy Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Magnetic measurements Physics Properties of type I and type II superconductors Rare earth compounds Superconductivity Superconductors Vortex lattices ,flux pinning, flux creep |
| title | Anisotropic vortex flux behavior in grain-oriented YBa2Cu3O7 |
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