Anomalous thermal expansion of cobalt olivine, Co 2 SiO 4 , at low temperatures
The temperature variation of the Co 2 SiO 4 structural parameters has been investigated by means of both neutron powder and single-crystal diffraction. Measurements were performed in a broad temperature range from 5 to 500 K. There is clear evidence of an anomalous thermal expansion related to the m...
Gespeichert in:
Veröffentlicht in: | Journal of applied crystallography 2010-08, Vol.43 (4), p.720-728 |
---|---|
Hauptverfasser: | , , , , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
container_end_page | 728 |
---|---|
container_issue | 4 |
container_start_page | 720 |
container_title | Journal of applied crystallography |
container_volume | 43 |
creator | Sazonov, Andrew Hutanu, Vladimir Meven, Martin Heger, Gernot Hansen, Thomas Senyshyn, Anatoliy |
description | The temperature variation of the Co
2
SiO
4
structural parameters has been investigated by means of both neutron powder and single-crystal diffraction. Measurements were performed in a broad temperature range from 5 to 500 K. There is clear evidence of an anomalous thermal expansion related to the magnetic phase transition at 50 K. Below this temperature an abrupt elongation and contraction were observed along the
c
and
b
axes (space group
Pnma
), respectively, whereas the lattice parameter
a
remains constant in the range between 5 and 50 K. The resulting volume of the unit cell is contracted below 50 K. This phenomenon is attributed to magnetostriction effects. A model based on the specific heat capacity data was applied for the quantitative description of the anomalous thermal expansion behaviour. On the other hand, no anomalies can be observed in the temperature dependency of the interatomic distances and angles. |
doi_str_mv | 10.1107/S002188981001455X |
format | Article |
fullrecord | <record><control><sourceid>crossref</sourceid><recordid>TN_cdi_crossref_primary_10_1107_S002188981001455X</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>10_1107_S002188981001455X</sourcerecordid><originalsourceid>FETCH-LOGICAL-c90X-bb1f431b274bac3ebd341e62e584e7b49c4274334325d8bcd7e2e087e6b676cf3</originalsourceid><addsrcrecordid>eNplkLtugzAYhT20UtK0D5Dtf4DQ-gY2Y4R6kyIxJEM2ZJsflQowskkvb19Qu3U6R-eTzvARsmX0njGqHo6UcqZ1rhmlTKbp-YqslylZthW5ifF9BpnifE3K_eB70_lLhOkNw1wBv0YzxNYP4Btw3ppuAt-1H-2AOyg8cDi2JUjYgZmg858wYT9iMNMlYLwl143pIt795Yacnh5PxUtyKJ9fi_0hcTk9J9ayRgpmuZLWOIG2FpJhxjHVEpWVuZMzEkIKntbaulohR6oVZjZTmWvEhrDfWxd8jAGbagxtb8J3xWi1SKj-SRA_uGZQsw</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Anomalous thermal expansion of cobalt olivine, Co 2 SiO 4 , at low temperatures</title><source>Access via Wiley Online Library</source><source>Alma/SFX Local Collection</source><creator>Sazonov, Andrew ; Hutanu, Vladimir ; Meven, Martin ; Heger, Gernot ; Hansen, Thomas ; Senyshyn, Anatoliy</creator><creatorcontrib>Sazonov, Andrew ; Hutanu, Vladimir ; Meven, Martin ; Heger, Gernot ; Hansen, Thomas ; Senyshyn, Anatoliy</creatorcontrib><description>The temperature variation of the Co
2
SiO
4
structural parameters has been investigated by means of both neutron powder and single-crystal diffraction. Measurements were performed in a broad temperature range from 5 to 500 K. There is clear evidence of an anomalous thermal expansion related to the magnetic phase transition at 50 K. Below this temperature an abrupt elongation and contraction were observed along the
c
and
b
axes (space group
Pnma
), respectively, whereas the lattice parameter
a
remains constant in the range between 5 and 50 K. The resulting volume of the unit cell is contracted below 50 K. This phenomenon is attributed to magnetostriction effects. A model based on the specific heat capacity data was applied for the quantitative description of the anomalous thermal expansion behaviour. On the other hand, no anomalies can be observed in the temperature dependency of the interatomic distances and angles.</description><identifier>ISSN: 0021-8898</identifier><identifier>DOI: 10.1107/S002188981001455X</identifier><language>eng</language><ispartof>Journal of applied crystallography, 2010-08, Vol.43 (4), p.720-728</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c90X-bb1f431b274bac3ebd341e62e584e7b49c4274334325d8bcd7e2e087e6b676cf3</citedby><cites>FETCH-LOGICAL-c90X-bb1f431b274bac3ebd341e62e584e7b49c4274334325d8bcd7e2e087e6b676cf3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Sazonov, Andrew</creatorcontrib><creatorcontrib>Hutanu, Vladimir</creatorcontrib><creatorcontrib>Meven, Martin</creatorcontrib><creatorcontrib>Heger, Gernot</creatorcontrib><creatorcontrib>Hansen, Thomas</creatorcontrib><creatorcontrib>Senyshyn, Anatoliy</creatorcontrib><title>Anomalous thermal expansion of cobalt olivine, Co 2 SiO 4 , at low temperatures</title><title>Journal of applied crystallography</title><description>The temperature variation of the Co
2
SiO
4
structural parameters has been investigated by means of both neutron powder and single-crystal diffraction. Measurements were performed in a broad temperature range from 5 to 500 K. There is clear evidence of an anomalous thermal expansion related to the magnetic phase transition at 50 K. Below this temperature an abrupt elongation and contraction were observed along the
c
and
b
axes (space group
Pnma
), respectively, whereas the lattice parameter
a
remains constant in the range between 5 and 50 K. The resulting volume of the unit cell is contracted below 50 K. This phenomenon is attributed to magnetostriction effects. A model based on the specific heat capacity data was applied for the quantitative description of the anomalous thermal expansion behaviour. On the other hand, no anomalies can be observed in the temperature dependency of the interatomic distances and angles.</description><issn>0021-8898</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNplkLtugzAYhT20UtK0D5Dtf4DQ-gY2Y4R6kyIxJEM2ZJsflQowskkvb19Qu3U6R-eTzvARsmX0njGqHo6UcqZ1rhmlTKbp-YqslylZthW5ifF9BpnifE3K_eB70_lLhOkNw1wBv0YzxNYP4Btw3ppuAt-1H-2AOyg8cDi2JUjYgZmg858wYT9iMNMlYLwl143pIt795Yacnh5PxUtyKJ9fi_0hcTk9J9ayRgpmuZLWOIG2FpJhxjHVEpWVuZMzEkIKntbaulohR6oVZjZTmWvEhrDfWxd8jAGbagxtb8J3xWi1SKj-SRA_uGZQsw</recordid><startdate>20100801</startdate><enddate>20100801</enddate><creator>Sazonov, Andrew</creator><creator>Hutanu, Vladimir</creator><creator>Meven, Martin</creator><creator>Heger, Gernot</creator><creator>Hansen, Thomas</creator><creator>Senyshyn, Anatoliy</creator><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20100801</creationdate><title>Anomalous thermal expansion of cobalt olivine, Co 2 SiO 4 , at low temperatures</title><author>Sazonov, Andrew ; Hutanu, Vladimir ; Meven, Martin ; Heger, Gernot ; Hansen, Thomas ; Senyshyn, Anatoliy</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c90X-bb1f431b274bac3ebd341e62e584e7b49c4274334325d8bcd7e2e087e6b676cf3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Sazonov, Andrew</creatorcontrib><creatorcontrib>Hutanu, Vladimir</creatorcontrib><creatorcontrib>Meven, Martin</creatorcontrib><creatorcontrib>Heger, Gernot</creatorcontrib><creatorcontrib>Hansen, Thomas</creatorcontrib><creatorcontrib>Senyshyn, Anatoliy</creatorcontrib><collection>CrossRef</collection><jtitle>Journal of applied crystallography</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Sazonov, Andrew</au><au>Hutanu, Vladimir</au><au>Meven, Martin</au><au>Heger, Gernot</au><au>Hansen, Thomas</au><au>Senyshyn, Anatoliy</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Anomalous thermal expansion of cobalt olivine, Co 2 SiO 4 , at low temperatures</atitle><jtitle>Journal of applied crystallography</jtitle><date>2010-08-01</date><risdate>2010</risdate><volume>43</volume><issue>4</issue><spage>720</spage><epage>728</epage><pages>720-728</pages><issn>0021-8898</issn><abstract>The temperature variation of the Co
2
SiO
4
structural parameters has been investigated by means of both neutron powder and single-crystal diffraction. Measurements were performed in a broad temperature range from 5 to 500 K. There is clear evidence of an anomalous thermal expansion related to the magnetic phase transition at 50 K. Below this temperature an abrupt elongation and contraction were observed along the
c
and
b
axes (space group
Pnma
), respectively, whereas the lattice parameter
a
remains constant in the range between 5 and 50 K. The resulting volume of the unit cell is contracted below 50 K. This phenomenon is attributed to magnetostriction effects. A model based on the specific heat capacity data was applied for the quantitative description of the anomalous thermal expansion behaviour. On the other hand, no anomalies can be observed in the temperature dependency of the interatomic distances and angles.</abstract><doi>10.1107/S002188981001455X</doi><tpages>9</tpages></addata></record> |
fulltext | fulltext |
identifier | ISSN: 0021-8898 |
ispartof | Journal of applied crystallography, 2010-08, Vol.43 (4), p.720-728 |
issn | 0021-8898 |
language | eng |
recordid | cdi_crossref_primary_10_1107_S002188981001455X |
source | Access via Wiley Online Library; Alma/SFX Local Collection |
title | Anomalous thermal expansion of cobalt olivine, Co 2 SiO 4 , at low temperatures |
url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-12-24T20%3A43%3A32IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-crossref&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Anomalous%20thermal%20expansion%20of%20cobalt%20olivine,%20Co%202%20SiO%204%20,%20at%20low%20temperatures&rft.jtitle=Journal%20of%20applied%20crystallography&rft.au=Sazonov,%20Andrew&rft.date=2010-08-01&rft.volume=43&rft.issue=4&rft.spage=720&rft.epage=728&rft.pages=720-728&rft.issn=0021-8898&rft_id=info:doi/10.1107/S002188981001455X&rft_dat=%3Ccrossref%3E10_1107_S002188981001455X%3C/crossref%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |