Crystal lattice disorder and characteristic features of the low-temperature thermal properties of higher borides
Heat capacity C P ( T ) and lattice parameters a ( T ), b ( T ) and c ( T ) of LuB 44 Si 3.5 borosilicide are experimentally studied as a function of temperature in the range of 2-300 K. The results are compared with those of pseudo-isostructural LuB 50 boride. At the lowest temperatures, it is show...
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| Veröffentlicht in: | Dalton transactions : an international journal of inorganic chemistry 2020-02, Vol.49 (7), p.2138-2144 |
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| container_title | Dalton transactions : an international journal of inorganic chemistry |
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| creator | Novikov, V. V Matovnikov, A. V Mitroshenkov, N. V Shevelkov, A. V Bud'ko, S. L |
| description | Heat capacity
C
P
(
T
) and lattice parameters
a
(
T
),
b
(
T
) and
c
(
T
) of LuB
44
Si
3.5
borosilicide are experimentally studied as a function of temperature in the range of 2-300 K. The results are compared with those of pseudo-isostructural LuB
50
boride. At the lowest temperatures, it is shown that the
C
P
(
T
) dependence of borosilicide changes linearly with temperature. This is attributed to the effect of glass-like behaviour of the heat capacity due to the disorder in the sublattice of non-metals. The presence of defects in the B-Si sublattice and the irregular form of the cages in the B-Si matrix, which are occupied by Lu
3+
ions, lead to the formation of two-level systems (TLS) in the Lu
3+
subsystem. The TLS make a characteristic bell-like low-temperature contribution to the heat capacity of borosilicide. We show that there is a wide temperature range (5-150 K) of negative thermal expansion of borosilicide, which is attributed to the influence of quasi-independent vibrations of Lu
3+
ions in the cages of the borosilicide crystal structure.
Heat capacity
C
P
(
T
) and lattice parameters
a
(
T
),
b
(
T
) and
c
(
T
) of LuB
44
Si
3.5
borosilicide are experimentally studied as a function of temperature in the range of 2-300 K. |
| doi_str_mv | 10.1039/c9dt04919c |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_2356692954</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2348234980</sourcerecordid><originalsourceid>FETCH-LOGICAL-c337t-43943ff9b36a754b850c06cb1ea72871fe87b1713b47bacd265bb65f12671ccd3</originalsourceid><addsrcrecordid>eNpdkctLxDAQxoMo7vq4eFcCXkSo5tk0R6lPELzouSTp1O3SbtckRfa_N-7qCh6GGb758THMh9AJJVeUcH3tdB2J0FS7HTSlQqlMMy52tzPLJ-gghDkhjBHJ9tGEU62FlHqKlqVfhWg63JkYWwe4bsPga_DYLGrsZsYbF8G3IS1xAyaOHgIeGhxngLvhM4vQL8Gv9W_N98lr6YekxXZDztr3pGM7-LaGcIT2GtMFOP7ph-jt_u61fMyeXx6eypvnzHGuYia4FrxptOW5UVLYQhJHcmcpGMUKRRsolKWKciuUNa5mubQ2lw1luaLO1fwQXWx80zEfI4RY9W1w0HVmAcMYqvShIpUuSELP_6HzYfSLdF2iZJ5rpqVI1OWGcn4IwUNTLX3bG7-qKKm-c6hKffu6zqFM8NmP5Wh7qLfo7-MTcLoBfHDb7V-Q_AsCoY5K</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2356692954</pqid></control><display><type>article</type><title>Crystal lattice disorder and characteristic features of the low-temperature thermal properties of higher borides</title><source>Royal Society Of Chemistry Journals 2008-</source><source>Alma/SFX Local Collection</source><creator>Novikov, V. V ; Matovnikov, A. V ; Mitroshenkov, N. V ; Shevelkov, A. V ; Bud'ko, S. L</creator><creatorcontrib>Novikov, V. V ; Matovnikov, A. V ; Mitroshenkov, N. V ; Shevelkov, A. V ; Bud'ko, S. L</creatorcontrib><description>Heat capacity
C
P
(
T
) and lattice parameters
a
(
T
),
b
(
T
) and
c
(
T
) of LuB
44
Si
3.5
borosilicide are experimentally studied as a function of temperature in the range of 2-300 K. The results are compared with those of pseudo-isostructural LuB
50
boride. At the lowest temperatures, it is shown that the
C
P
(
T
) dependence of borosilicide changes linearly with temperature. This is attributed to the effect of glass-like behaviour of the heat capacity due to the disorder in the sublattice of non-metals. The presence of defects in the B-Si sublattice and the irregular form of the cages in the B-Si matrix, which are occupied by Lu
3+
ions, lead to the formation of two-level systems (TLS) in the Lu
3+
subsystem. The TLS make a characteristic bell-like low-temperature contribution to the heat capacity of borosilicide. We show that there is a wide temperature range (5-150 K) of negative thermal expansion of borosilicide, which is attributed to the influence of quasi-independent vibrations of Lu
3+
ions in the cages of the borosilicide crystal structure.
Heat capacity
C
P
(
T
) and lattice parameters
a
(
T
),
b
(
T
) and
c
(
T
) of LuB
44
Si
3.5
borosilicide are experimentally studied as a function of temperature in the range of 2-300 K.</description><identifier>ISSN: 1477-9226</identifier><identifier>EISSN: 1477-9234</identifier><identifier>DOI: 10.1039/c9dt04919c</identifier><identifier>PMID: 31994559</identifier><language>eng</language><publisher>England: Royal Society of Chemistry</publisher><subject>Borides ; Cages ; Crystal defects ; Crystal lattices ; Crystal structure ; Heat ; Lattice parameters ; Low temperature ; Specific heat ; Subsystems ; Temperature ; Thermal expansion ; Thermodynamic properties</subject><ispartof>Dalton transactions : an international journal of inorganic chemistry, 2020-02, Vol.49 (7), p.2138-2144</ispartof><rights>Copyright Royal Society of Chemistry 2020</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c337t-43943ff9b36a754b850c06cb1ea72871fe87b1713b47bacd265bb65f12671ccd3</citedby><cites>FETCH-LOGICAL-c337t-43943ff9b36a754b850c06cb1ea72871fe87b1713b47bacd265bb65f12671ccd3</cites><orcidid>0000-0002-8316-3280 ; 0000-0003-0427-7691</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31994559$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Novikov, V. V</creatorcontrib><creatorcontrib>Matovnikov, A. V</creatorcontrib><creatorcontrib>Mitroshenkov, N. V</creatorcontrib><creatorcontrib>Shevelkov, A. V</creatorcontrib><creatorcontrib>Bud'ko, S. L</creatorcontrib><title>Crystal lattice disorder and characteristic features of the low-temperature thermal properties of higher borides</title><title>Dalton transactions : an international journal of inorganic chemistry</title><addtitle>Dalton Trans</addtitle><description>Heat capacity
C
P
(
T
) and lattice parameters
a
(
T
),
b
(
T
) and
c
(
T
) of LuB
44
Si
3.5
borosilicide are experimentally studied as a function of temperature in the range of 2-300 K. The results are compared with those of pseudo-isostructural LuB
50
boride. At the lowest temperatures, it is shown that the
C
P
(
T
) dependence of borosilicide changes linearly with temperature. This is attributed to the effect of glass-like behaviour of the heat capacity due to the disorder in the sublattice of non-metals. The presence of defects in the B-Si sublattice and the irregular form of the cages in the B-Si matrix, which are occupied by Lu
3+
ions, lead to the formation of two-level systems (TLS) in the Lu
3+
subsystem. The TLS make a characteristic bell-like low-temperature contribution to the heat capacity of borosilicide. We show that there is a wide temperature range (5-150 K) of negative thermal expansion of borosilicide, which is attributed to the influence of quasi-independent vibrations of Lu
3+
ions in the cages of the borosilicide crystal structure.
Heat capacity
C
P
(
T
) and lattice parameters
a
(
T
),
b
(
T
) and
c
(
T
) of LuB
44
Si
3.5
borosilicide are experimentally studied as a function of temperature in the range of 2-300 K.</description><subject>Borides</subject><subject>Cages</subject><subject>Crystal defects</subject><subject>Crystal lattices</subject><subject>Crystal structure</subject><subject>Heat</subject><subject>Lattice parameters</subject><subject>Low temperature</subject><subject>Specific heat</subject><subject>Subsystems</subject><subject>Temperature</subject><subject>Thermal expansion</subject><subject>Thermodynamic properties</subject><issn>1477-9226</issn><issn>1477-9234</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNpdkctLxDAQxoMo7vq4eFcCXkSo5tk0R6lPELzouSTp1O3SbtckRfa_N-7qCh6GGb758THMh9AJJVeUcH3tdB2J0FS7HTSlQqlMMy52tzPLJ-gghDkhjBHJ9tGEU62FlHqKlqVfhWg63JkYWwe4bsPga_DYLGrsZsYbF8G3IS1xAyaOHgIeGhxngLvhM4vQL8Gv9W_N98lr6YekxXZDztr3pGM7-LaGcIT2GtMFOP7ph-jt_u61fMyeXx6eypvnzHGuYia4FrxptOW5UVLYQhJHcmcpGMUKRRsolKWKciuUNa5mubQ2lw1luaLO1fwQXWx80zEfI4RY9W1w0HVmAcMYqvShIpUuSELP_6HzYfSLdF2iZJ5rpqVI1OWGcn4IwUNTLX3bG7-qKKm-c6hKffu6zqFM8NmP5Wh7qLfo7-MTcLoBfHDb7V-Q_AsCoY5K</recordid><startdate>20200221</startdate><enddate>20200221</enddate><creator>Novikov, V. V</creator><creator>Matovnikov, A. V</creator><creator>Mitroshenkov, N. V</creator><creator>Shevelkov, A. V</creator><creator>Bud'ko, S. L</creator><general>Royal Society of Chemistry</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-8316-3280</orcidid><orcidid>https://orcid.org/0000-0003-0427-7691</orcidid></search><sort><creationdate>20200221</creationdate><title>Crystal lattice disorder and characteristic features of the low-temperature thermal properties of higher borides</title><author>Novikov, V. V ; Matovnikov, A. V ; Mitroshenkov, N. V ; Shevelkov, A. V ; Bud'ko, S. L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c337t-43943ff9b36a754b850c06cb1ea72871fe87b1713b47bacd265bb65f12671ccd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Borides</topic><topic>Cages</topic><topic>Crystal defects</topic><topic>Crystal lattices</topic><topic>Crystal structure</topic><topic>Heat</topic><topic>Lattice parameters</topic><topic>Low temperature</topic><topic>Specific heat</topic><topic>Subsystems</topic><topic>Temperature</topic><topic>Thermal expansion</topic><topic>Thermodynamic properties</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Novikov, V. V</creatorcontrib><creatorcontrib>Matovnikov, A. V</creatorcontrib><creatorcontrib>Mitroshenkov, N. V</creatorcontrib><creatorcontrib>Shevelkov, A. V</creatorcontrib><creatorcontrib>Bud'ko, S. L</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>MEDLINE - Academic</collection><jtitle>Dalton transactions : an international journal of inorganic chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Novikov, V. V</au><au>Matovnikov, A. V</au><au>Mitroshenkov, N. V</au><au>Shevelkov, A. V</au><au>Bud'ko, S. L</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Crystal lattice disorder and characteristic features of the low-temperature thermal properties of higher borides</atitle><jtitle>Dalton transactions : an international journal of inorganic chemistry</jtitle><addtitle>Dalton Trans</addtitle><date>2020-02-21</date><risdate>2020</risdate><volume>49</volume><issue>7</issue><spage>2138</spage><epage>2144</epage><pages>2138-2144</pages><issn>1477-9226</issn><eissn>1477-9234</eissn><abstract>Heat capacity
C
P
(
T
) and lattice parameters
a
(
T
),
b
(
T
) and
c
(
T
) of LuB
44
Si
3.5
borosilicide are experimentally studied as a function of temperature in the range of 2-300 K. The results are compared with those of pseudo-isostructural LuB
50
boride. At the lowest temperatures, it is shown that the
C
P
(
T
) dependence of borosilicide changes linearly with temperature. This is attributed to the effect of glass-like behaviour of the heat capacity due to the disorder in the sublattice of non-metals. The presence of defects in the B-Si sublattice and the irregular form of the cages in the B-Si matrix, which are occupied by Lu
3+
ions, lead to the formation of two-level systems (TLS) in the Lu
3+
subsystem. The TLS make a characteristic bell-like low-temperature contribution to the heat capacity of borosilicide. We show that there is a wide temperature range (5-150 K) of negative thermal expansion of borosilicide, which is attributed to the influence of quasi-independent vibrations of Lu
3+
ions in the cages of the borosilicide crystal structure.
Heat capacity
C
P
(
T
) and lattice parameters
a
(
T
),
b
(
T
) and
c
(
T
) of LuB
44
Si
3.5
borosilicide are experimentally studied as a function of temperature in the range of 2-300 K.</abstract><cop>England</cop><pub>Royal Society of Chemistry</pub><pmid>31994559</pmid><doi>10.1039/c9dt04919c</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0002-8316-3280</orcidid><orcidid>https://orcid.org/0000-0003-0427-7691</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1477-9226 |
| ispartof | Dalton transactions : an international journal of inorganic chemistry, 2020-02, Vol.49 (7), p.2138-2144 |
| issn | 1477-9226 1477-9234 |
| language | eng |
| recordid | cdi_proquest_journals_2356692954 |
| source | Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| subjects | Borides Cages Crystal defects Crystal lattices Crystal structure Heat Lattice parameters Low temperature Specific heat Subsystems Temperature Thermal expansion Thermodynamic properties |
| title | Crystal lattice disorder and characteristic features of the low-temperature thermal properties of higher borides |
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