Quantum criticality and entropy transfer in spin chains and planes—Pyridine oxide copper salts
We present magnetic field-dependent specific heat (C) data for [Cu(pyO)6](NO3)2 (pyO = pyridine oxide) (CPN), a molecular salt shown to be quasi-1D, and for a quasi-2D analogue, [Cu(pyO)6](BF4)2 (CPB). For CPN, a sharp feature indicating 3D ordering is observed at 0.16K in zero-field. As the field,...
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| Veröffentlicht in: | AIP advances 2019-12, Vol.9 (12), p.125329-125329-4 |
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| creator | Trinh, Jennifer Schaller, Daniel LaBarre, Patrick G. Schlenker, Kevin Miller, Joel S. Ramirez, Arthur P. |
| description | We present magnetic field-dependent specific heat (C) data for
[Cu(pyO)6](NO3)2 (pyO = pyridine oxide) (CPN), a
molecular salt shown to be quasi-1D, and for a quasi-2D analogue,
[Cu(pyO)6](BF4)2 (CPB). For CPN, a sharp feature
indicating 3D ordering is observed at 0.16K in zero-field. As the field,
H, is increased, the ordering temperature first increases, as expected
for quasi-1D antiferromagnets, before decreasing rapidly for H above 3T.
The field also transfers the entropy of short-range ordering (SRO) in the spin chains into
the 3D ordering peak. At our lowest accessible temperature, T ∼ 0.096K,
C/T exhibits an enhanced peak at the critical field.
Qualitatively similar behavior is found in CPB. These results demonstrate a potentially
powerful new materials route to study quantum phase transitions. |
| doi_str_mv | 10.1063/1.5130403 |
| format | Article |
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[Cu(pyO)6](NO3)2 (pyO = pyridine oxide) (CPN), a
molecular salt shown to be quasi-1D, and for a quasi-2D analogue,
[Cu(pyO)6](BF4)2 (CPB). For CPN, a sharp feature
indicating 3D ordering is observed at 0.16K in zero-field. As the field,
H, is increased, the ordering temperature first increases, as expected
for quasi-1D antiferromagnets, before decreasing rapidly for H above 3T.
The field also transfers the entropy of short-range ordering (SRO) in the spin chains into
the 3D ordering peak. At our lowest accessible temperature, T ∼ 0.096K,
C/T exhibits an enhanced peak at the critical field.
Qualitatively similar behavior is found in CPB. These results demonstrate a potentially
powerful new materials route to study quantum phase transitions.</description><identifier>ISSN: 2158-3226</identifier><identifier>EISSN: 2158-3226</identifier><identifier>DOI: 10.1063/1.5130403</identifier><identifier>CODEN: AAIDBI</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>Antiferromagnetism ; Chains ; Copper ; Critical field (superconductivity) ; Entropy ; Phase transitions</subject><ispartof>AIP advances, 2019-12, Vol.9 (12), p.125329-125329-4</ispartof><rights>Author(s)</rights><rights>2019 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c415t-73d47051080322ca0dd80909b6af4b5867dc6f90dcb76185fff051fdce55e7a73</cites><orcidid>0000-0002-8676-6431 ; 0000-0001-9814-6486 ; 0000000198146486 ; 0000000286766431</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,776,780,860,881,2095,27903,27904</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/1580455$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Trinh, Jennifer</creatorcontrib><creatorcontrib>Schaller, Daniel</creatorcontrib><creatorcontrib>LaBarre, Patrick G.</creatorcontrib><creatorcontrib>Schlenker, Kevin</creatorcontrib><creatorcontrib>Miller, Joel S.</creatorcontrib><creatorcontrib>Ramirez, Arthur P.</creatorcontrib><title>Quantum criticality and entropy transfer in spin chains and planes—Pyridine oxide copper salts</title><title>AIP advances</title><description>We present magnetic field-dependent specific heat (C) data for
[Cu(pyO)6](NO3)2 (pyO = pyridine oxide) (CPN), a
molecular salt shown to be quasi-1D, and for a quasi-2D analogue,
[Cu(pyO)6](BF4)2 (CPB). For CPN, a sharp feature
indicating 3D ordering is observed at 0.16K in zero-field. As the field,
H, is increased, the ordering temperature first increases, as expected
for quasi-1D antiferromagnets, before decreasing rapidly for H above 3T.
The field also transfers the entropy of short-range ordering (SRO) in the spin chains into
the 3D ordering peak. At our lowest accessible temperature, T ∼ 0.096K,
C/T exhibits an enhanced peak at the critical field.
Qualitatively similar behavior is found in CPB. These results demonstrate a potentially
powerful new materials route to study quantum phase transitions.</description><subject>Antiferromagnetism</subject><subject>Chains</subject><subject>Copper</subject><subject>Critical field (superconductivity)</subject><subject>Entropy</subject><subject>Phase transitions</subject><issn>2158-3226</issn><issn>2158-3226</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>DOA</sourceid><recordid>eNp9kcFqFTEUhgdRsNQufINBVwq3nkwmmcxSitpCQQVdxzMnic1lmoxJrnh3PoRP2Ccxt1OqIJhFEsKXL__JaZqnDE4ZSP6KnQrGoQf-oDnqmFAb3nXy4V_7x81Jzluoox8ZqP6o-fJxh6HsrltKvnjC2Zd9i8G0NpQUl31bEobsbGp9aPNSJ7pCH_Its8wYbL75-evDPnnjg23jD29sS3FZ6o2Mc8lPmkcO52xP7tbj5vPbN5_OzjeX799dnL2-3FDPRNkM3PQDiBoKalBCMEbBCOMk0fWTUHIwJN0IhqZBMiWcc5V2hqwQdsCBHzcXq9dE3Ool-WtMex3R69uDmL5qTLXC2WogS0zidLD0fOqU6jg4kM50JNXUVdez1RVz8TqTL5auKIZgqej6l9ALUaHnK7Sk-G1nc9HbuEuh1qg7zkEqPg6qUi9WilLMOVl3H42BPjRNM33XtMq-XNnDi1h8DPfw95j-gHox7n_wv-bf6iOleQ</recordid><startdate>20191201</startdate><enddate>20191201</enddate><creator>Trinh, Jennifer</creator><creator>Schaller, Daniel</creator><creator>LaBarre, Patrick G.</creator><creator>Schlenker, Kevin</creator><creator>Miller, Joel S.</creator><creator>Ramirez, Arthur P.</creator><general>American Institute of Physics</general><general>AIP Publishing LLC</general><scope>AJDQP</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>OTOTI</scope><scope>DOA</scope><orcidid>https://orcid.org/0000-0002-8676-6431</orcidid><orcidid>https://orcid.org/0000-0001-9814-6486</orcidid><orcidid>https://orcid.org/0000000198146486</orcidid><orcidid>https://orcid.org/0000000286766431</orcidid></search><sort><creationdate>20191201</creationdate><title>Quantum criticality and entropy transfer in spin chains and planes—Pyridine oxide copper salts</title><author>Trinh, Jennifer ; Schaller, Daniel ; LaBarre, Patrick G. ; Schlenker, Kevin ; Miller, Joel S. ; Ramirez, Arthur P.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c415t-73d47051080322ca0dd80909b6af4b5867dc6f90dcb76185fff051fdce55e7a73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Antiferromagnetism</topic><topic>Chains</topic><topic>Copper</topic><topic>Critical field (superconductivity)</topic><topic>Entropy</topic><topic>Phase transitions</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Trinh, Jennifer</creatorcontrib><creatorcontrib>Schaller, Daniel</creatorcontrib><creatorcontrib>LaBarre, Patrick G.</creatorcontrib><creatorcontrib>Schlenker, Kevin</creatorcontrib><creatorcontrib>Miller, Joel S.</creatorcontrib><creatorcontrib>Ramirez, Arthur P.</creatorcontrib><collection>AIP Open Access Journals</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>AIP advances</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Trinh, Jennifer</au><au>Schaller, Daniel</au><au>LaBarre, Patrick G.</au><au>Schlenker, Kevin</au><au>Miller, Joel S.</au><au>Ramirez, Arthur P.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Quantum criticality and entropy transfer in spin chains and planes—Pyridine oxide copper salts</atitle><jtitle>AIP advances</jtitle><date>2019-12-01</date><risdate>2019</risdate><volume>9</volume><issue>12</issue><spage>125329</spage><epage>125329-4</epage><pages>125329-125329-4</pages><issn>2158-3226</issn><eissn>2158-3226</eissn><coden>AAIDBI</coden><abstract>We present magnetic field-dependent specific heat (C) data for
[Cu(pyO)6](NO3)2 (pyO = pyridine oxide) (CPN), a
molecular salt shown to be quasi-1D, and for a quasi-2D analogue,
[Cu(pyO)6](BF4)2 (CPB). For CPN, a sharp feature
indicating 3D ordering is observed at 0.16K in zero-field. As the field,
H, is increased, the ordering temperature first increases, as expected
for quasi-1D antiferromagnets, before decreasing rapidly for H above 3T.
The field also transfers the entropy of short-range ordering (SRO) in the spin chains into
the 3D ordering peak. At our lowest accessible temperature, T ∼ 0.096K,
C/T exhibits an enhanced peak at the critical field.
Qualitatively similar behavior is found in CPB. These results demonstrate a potentially
powerful new materials route to study quantum phase transitions.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.5130403</doi><tpages>4</tpages><orcidid>https://orcid.org/0000-0002-8676-6431</orcidid><orcidid>https://orcid.org/0000-0001-9814-6486</orcidid><orcidid>https://orcid.org/0000000198146486</orcidid><orcidid>https://orcid.org/0000000286766431</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Antiferromagnetism Chains Copper Critical field (superconductivity) Entropy Phase transitions |
| title | Quantum criticality and entropy transfer in spin chains and planes—Pyridine oxide copper salts |
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