Magnetic-field induced instability surrounding the A-phase of MnSi: Bulk and SANS measurements
We have determined the boundary of the magnetic A-phase of MnSi from distinct changes of slope in the AC susceptibility for magnetic field B applied parallel to the crystallographic 〈 1 0 0 〉 , 〈 1 1 0 〉 and 〈 1 1 1 〉 directions. The specific heat displays an anomaly of a few percent at the border o...
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| Veröffentlicht in: | Physica. B, Condensed matter Condensed matter, 2006-11, Vol.385, p.385-387 |
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| container_title | Physica. B, Condensed matter |
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| creator | Lamago, Daniel Georgii, Robert Pfleiderer, Christian Böni, Peter |
| description | We have determined the boundary of the magnetic A-phase of MnSi from distinct changes of slope in the AC susceptibility for magnetic field
B applied parallel to the crystallographic
〈
1
0
0
〉
,
〈
1
1
0
〉
and
〈
1
1
1
〉
directions. The specific heat displays an anomaly of a few percent at the border of the A-phase characteristic of a well-defined phase transition. In addition to the previously reported change of orientation of the helical modulation in the A-phase, we observe a gradual appearance of a ring of neutron small-angle scattering intensity that extends over the field and temperature regime of the A-phase. The estimated integrated intensity of this ring is a sizable fraction of the intensity in the helically ordered state, thus indicating that the change of the magnetic structure near the A-phase cannot be interpreted in terms of an abrupt change of orientation of a simple helical modulation alone. |
| doi_str_mv | 10.1016/j.physb.2006.05.079 |
| format | Article |
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B applied parallel to the crystallographic
〈
1
0
0
〉
,
〈
1
1
0
〉
and
〈
1
1
1
〉
directions. The specific heat displays an anomaly of a few percent at the border of the A-phase characteristic of a well-defined phase transition. In addition to the previously reported change of orientation of the helical modulation in the A-phase, we observe a gradual appearance of a ring of neutron small-angle scattering intensity that extends over the field and temperature regime of the A-phase. The estimated integrated intensity of this ring is a sizable fraction of the intensity in the helically ordered state, thus indicating that the change of the magnetic structure near the A-phase cannot be interpreted in terms of an abrupt change of orientation of a simple helical modulation alone.</description><identifier>ISSN: 0921-4526</identifier><identifier>EISSN: 1873-2135</identifier><identifier>DOI: 10.1016/j.physb.2006.05.079</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Helical magnetic order ; MnSi ; Small-angle neutron scattering</subject><ispartof>Physica. B, Condensed matter, 2006-11, Vol.385, p.385-387</ispartof><rights>2006 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c400t-aafc5d749d6671fcedb2e2b5f7decfe24579486f656e6452b74bb291d0533c9b3</citedby><cites>FETCH-LOGICAL-c400t-aafc5d749d6671fcedb2e2b5f7decfe24579486f656e6452b74bb291d0533c9b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0921452606009823$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65534</link.rule.ids></links><search><creatorcontrib>Lamago, Daniel</creatorcontrib><creatorcontrib>Georgii, Robert</creatorcontrib><creatorcontrib>Pfleiderer, Christian</creatorcontrib><creatorcontrib>Böni, Peter</creatorcontrib><title>Magnetic-field induced instability surrounding the A-phase of MnSi: Bulk and SANS measurements</title><title>Physica. B, Condensed matter</title><description>We have determined the boundary of the magnetic A-phase of MnSi from distinct changes of slope in the AC susceptibility for magnetic field
B applied parallel to the crystallographic
〈
1
0
0
〉
,
〈
1
1
0
〉
and
〈
1
1
1
〉
directions. The specific heat displays an anomaly of a few percent at the border of the A-phase characteristic of a well-defined phase transition. In addition to the previously reported change of orientation of the helical modulation in the A-phase, we observe a gradual appearance of a ring of neutron small-angle scattering intensity that extends over the field and temperature regime of the A-phase. The estimated integrated intensity of this ring is a sizable fraction of the intensity in the helically ordered state, thus indicating that the change of the magnetic structure near the A-phase cannot be interpreted in terms of an abrupt change of orientation of a simple helical modulation alone.</description><subject>Helical magnetic order</subject><subject>MnSi</subject><subject>Small-angle neutron scattering</subject><issn>0921-4526</issn><issn>1873-2135</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNp9kD9v2zAUxIkiAeo4-QRdOHWTwj8iZRXI4BpJW8BuBydrCIp8tOnIlEpKBfztQ9ed-5Zb7vdwdwh9oqSkhMr7QznsT6ktGSGyJKIkdfMBzeii5gWjXFyhGWkYLSrB5Ed0k9KB5KM1naHXjd4FGL0pnIfOYh_sZOCsadSt7_x4wmmKsZ-C9WGHxz3gZTHsdQLcO7wJW_8Ff526N6yDxdvlzy0-gs4EHCGM6RZdO90luPunc_Ty9Pi8-l6sf337sVquC1MRMhZaOyNsXTVWypq6HKBlwFrhagvGAatE3VQL6aSQIHOLtq7aljXUEsG5aVo-R58vf4fY_54gjerok4Gu0wH6KSnWcC7lgmcjvxhN7FOK4NQQ_VHHk6JEnbdUB_V3S3XeUhGh8paZerhQkDv88RBVMh5CzukjmFHZ3v-XfwfrjX9T</recordid><startdate>20061101</startdate><enddate>20061101</enddate><creator>Lamago, Daniel</creator><creator>Georgii, Robert</creator><creator>Pfleiderer, Christian</creator><creator>Böni, Peter</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>20061101</creationdate><title>Magnetic-field induced instability surrounding the A-phase of MnSi: Bulk and SANS measurements</title><author>Lamago, Daniel ; Georgii, Robert ; Pfleiderer, Christian ; Böni, Peter</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c400t-aafc5d749d6671fcedb2e2b5f7decfe24579486f656e6452b74bb291d0533c9b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Helical magnetic order</topic><topic>MnSi</topic><topic>Small-angle neutron scattering</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lamago, Daniel</creatorcontrib><creatorcontrib>Georgii, Robert</creatorcontrib><creatorcontrib>Pfleiderer, Christian</creatorcontrib><creatorcontrib>Böni, Peter</creatorcontrib><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physica. B, Condensed matter</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lamago, Daniel</au><au>Georgii, Robert</au><au>Pfleiderer, Christian</au><au>Böni, Peter</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Magnetic-field induced instability surrounding the A-phase of MnSi: Bulk and SANS measurements</atitle><jtitle>Physica. B, Condensed matter</jtitle><date>2006-11-01</date><risdate>2006</risdate><volume>385</volume><spage>385</spage><epage>387</epage><pages>385-387</pages><issn>0921-4526</issn><eissn>1873-2135</eissn><abstract>We have determined the boundary of the magnetic A-phase of MnSi from distinct changes of slope in the AC susceptibility for magnetic field
B applied parallel to the crystallographic
〈
1
0
0
〉
,
〈
1
1
0
〉
and
〈
1
1
1
〉
directions. The specific heat displays an anomaly of a few percent at the border of the A-phase characteristic of a well-defined phase transition. In addition to the previously reported change of orientation of the helical modulation in the A-phase, we observe a gradual appearance of a ring of neutron small-angle scattering intensity that extends over the field and temperature regime of the A-phase. The estimated integrated intensity of this ring is a sizable fraction of the intensity in the helically ordered state, thus indicating that the change of the magnetic structure near the A-phase cannot be interpreted in terms of an abrupt change of orientation of a simple helical modulation alone.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.physb.2006.05.079</doi><tpages>3</tpages></addata></record> |
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| ispartof | Physica. B, Condensed matter, 2006-11, Vol.385, p.385-387 |
| issn | 0921-4526 1873-2135 |
| language | eng |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Helical magnetic order MnSi Small-angle neutron scattering |
| title | Magnetic-field induced instability surrounding the A-phase of MnSi: Bulk and SANS measurements |
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