Extended charge-transfer model for Na x Co[Fe(CN) 6 ] 0.82
Cobalt Prussian blue analogues (Na x Co[Fe(CN) 6 ] y ; x ∼ 4 y − 3 ) whose valences are close to Co 3 + and Fe 2 + show characteristic phase transitions triggered by cooperative charge transfer (CT) from Fe 2 + to Co 3 + . Here, we extended the cooperative CT to the entire region of sodium concentra...
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| Veröffentlicht in: | Japanese Journal of Applied Physics 2021-04, Vol.60 (4), p.40904 |
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| container_title | Japanese Journal of Applied Physics |
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| creator | Moritomo, Yutaka Tachihara, Hiroki Iwaizumi, Hiroki Shibata, Takayuki Niwa, Hideharu |
| description | Cobalt Prussian blue analogues (Na
x
Co[Fe(CN)
6
]
y
;
x
∼
4
y
−
3
) whose valences are close to
Co
3
+
and
Fe
2
+
show characteristic phase transitions triggered by cooperative charge transfer (CT) from
Fe
2
+
to
Co
3
+
. Here, we extended the cooperative CT to the entire region of sodium concentration (
0
≤
x
≤
4
y
−
2
). We systematically investigated (1) upper (
T
c
u
) and lower (
T
c
l
) critical temperature, (2) variation of the [
Fe
2
+
(CN)
6
]
4
−
([
Fe
3
+
(CN)
6
]
3
−
) concentration, and (3) spectral weight (
I
ET
) due to electron transfer from
Fe
2
+
to
Co
3
+
of thin films of Na
x
Co[Fe(CN)
6
]
0.82
against
x
. In a wide
x
region from 0.00 to 0.57, we observed first-order phase transition triggered by the cooperative CT. The extended CT model reproduces the
x
-dependent behavior of the [Fe
II
(CN)
6
]
4
−
([Fe
III
(CN)
6
]
3
−
) concentration and
I
ET
, except for the high-
x
region above
x
∼
0.9
. |
| doi_str_mv | 10.35848/1347-4065/abefb3 |
| format | Article |
| fullrecord | <record><control><sourceid>crossref</sourceid><recordid>TN_cdi_crossref_primary_10_35848_1347_4065_abefb3</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>10_35848_1347_4065_abefb3</sourcerecordid><originalsourceid>FETCH-LOGICAL-c903-6e0b48ec6cae9bb7c666e78f0bfdb580c0ffbb6d3cf34ee06e169b79287361823</originalsourceid><addsrcrecordid>eNo9z0tLAzEUBeAgCo7VH-AuS12kvXnMnYw7GVoVSt10JxKSzI0P2o4kXdR_b2vF1eGcxYGPsWsJY11bYydSm0YYwHriA6WgT1j1P52yCkBJYVqlztlFKZ_7irWRFbub7ra06ann8d3nNxLb7DclUebroacVT0PmC893vBteZnTTLW458lcOY6su2Vnyq0JXfzliy9l02T2K-fPDU3c_F7EFLZAgGEsRo6c2hCYiIjU2QUh9qC1ESCkE7HVM2hABksQ2NK2yjUZplR4xebyNeSglU3Jf-WPt87eT4H7t7gB1B6g72vUPAMNLVg</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Extended charge-transfer model for Na x Co[Fe(CN) 6 ] 0.82</title><source>IOP Publishing Journals</source><source>Institute of Physics (IOP) Journals - HEAL-Link</source><creator>Moritomo, Yutaka ; Tachihara, Hiroki ; Iwaizumi, Hiroki ; Shibata, Takayuki ; Niwa, Hideharu</creator><creatorcontrib>Moritomo, Yutaka ; Tachihara, Hiroki ; Iwaizumi, Hiroki ; Shibata, Takayuki ; Niwa, Hideharu</creatorcontrib><description>Cobalt Prussian blue analogues (Na
x
Co[Fe(CN)
6
]
y
;
x
∼
4
y
−
3
) whose valences are close to
Co
3
+
and
Fe
2
+
show characteristic phase transitions triggered by cooperative charge transfer (CT) from
Fe
2
+
to
Co
3
+
. Here, we extended the cooperative CT to the entire region of sodium concentration (
0
≤
x
≤
4
y
−
2
). We systematically investigated (1) upper (
T
c
u
) and lower (
T
c
l
) critical temperature, (2) variation of the [
Fe
2
+
(CN)
6
]
4
−
([
Fe
3
+
(CN)
6
]
3
−
) concentration, and (3) spectral weight (
I
ET
) due to electron transfer from
Fe
2
+
to
Co
3
+
of thin films of Na
x
Co[Fe(CN)
6
]
0.82
against
x
. In a wide
x
region from 0.00 to 0.57, we observed first-order phase transition triggered by the cooperative CT. The extended CT model reproduces the
x
-dependent behavior of the [Fe
II
(CN)
6
]
4
−
([Fe
III
(CN)
6
]
3
−
) concentration and
I
ET
, except for the high-
x
region above
x
∼
0.9
.</description><identifier>ISSN: 0021-4922</identifier><identifier>EISSN: 1347-4065</identifier><identifier>DOI: 10.35848/1347-4065/abefb3</identifier><language>eng</language><ispartof>Japanese Journal of Applied Physics, 2021-04, Vol.60 (4), p.40904</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c903-6e0b48ec6cae9bb7c666e78f0bfdb580c0ffbb6d3cf34ee06e169b79287361823</citedby><cites>FETCH-LOGICAL-c903-6e0b48ec6cae9bb7c666e78f0bfdb580c0ffbb6d3cf34ee06e169b79287361823</cites><orcidid>0000-0002-1009-7198</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,27905,27906</link.rule.ids></links><search><creatorcontrib>Moritomo, Yutaka</creatorcontrib><creatorcontrib>Tachihara, Hiroki</creatorcontrib><creatorcontrib>Iwaizumi, Hiroki</creatorcontrib><creatorcontrib>Shibata, Takayuki</creatorcontrib><creatorcontrib>Niwa, Hideharu</creatorcontrib><title>Extended charge-transfer model for Na x Co[Fe(CN) 6 ] 0.82</title><title>Japanese Journal of Applied Physics</title><description>Cobalt Prussian blue analogues (Na
x
Co[Fe(CN)
6
]
y
;
x
∼
4
y
−
3
) whose valences are close to
Co
3
+
and
Fe
2
+
show characteristic phase transitions triggered by cooperative charge transfer (CT) from
Fe
2
+
to
Co
3
+
. Here, we extended the cooperative CT to the entire region of sodium concentration (
0
≤
x
≤
4
y
−
2
). We systematically investigated (1) upper (
T
c
u
) and lower (
T
c
l
) critical temperature, (2) variation of the [
Fe
2
+
(CN)
6
]
4
−
([
Fe
3
+
(CN)
6
]
3
−
) concentration, and (3) spectral weight (
I
ET
) due to electron transfer from
Fe
2
+
to
Co
3
+
of thin films of Na
x
Co[Fe(CN)
6
]
0.82
against
x
. In a wide
x
region from 0.00 to 0.57, we observed first-order phase transition triggered by the cooperative CT. The extended CT model reproduces the
x
-dependent behavior of the [Fe
II
(CN)
6
]
4
−
([Fe
III
(CN)
6
]
3
−
) concentration and
I
ET
, except for the high-
x
region above
x
∼
0.9
.</description><issn>0021-4922</issn><issn>1347-4065</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNo9z0tLAzEUBeAgCo7VH-AuS12kvXnMnYw7GVoVSt10JxKSzI0P2o4kXdR_b2vF1eGcxYGPsWsJY11bYydSm0YYwHriA6WgT1j1P52yCkBJYVqlztlFKZ_7irWRFbub7ra06ann8d3nNxLb7DclUebroacVT0PmC893vBteZnTTLW458lcOY6su2Vnyq0JXfzliy9l02T2K-fPDU3c_F7EFLZAgGEsRo6c2hCYiIjU2QUh9qC1ESCkE7HVM2hABksQ2NK2yjUZplR4xebyNeSglU3Jf-WPt87eT4H7t7gB1B6g72vUPAMNLVg</recordid><startdate>20210401</startdate><enddate>20210401</enddate><creator>Moritomo, Yutaka</creator><creator>Tachihara, Hiroki</creator><creator>Iwaizumi, Hiroki</creator><creator>Shibata, Takayuki</creator><creator>Niwa, Hideharu</creator><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-1009-7198</orcidid></search><sort><creationdate>20210401</creationdate><title>Extended charge-transfer model for Na x Co[Fe(CN) 6 ] 0.82</title><author>Moritomo, Yutaka ; Tachihara, Hiroki ; Iwaizumi, Hiroki ; Shibata, Takayuki ; Niwa, Hideharu</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c903-6e0b48ec6cae9bb7c666e78f0bfdb580c0ffbb6d3cf34ee06e169b79287361823</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Moritomo, Yutaka</creatorcontrib><creatorcontrib>Tachihara, Hiroki</creatorcontrib><creatorcontrib>Iwaizumi, Hiroki</creatorcontrib><creatorcontrib>Shibata, Takayuki</creatorcontrib><creatorcontrib>Niwa, Hideharu</creatorcontrib><collection>CrossRef</collection><jtitle>Japanese Journal of Applied Physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Moritomo, Yutaka</au><au>Tachihara, Hiroki</au><au>Iwaizumi, Hiroki</au><au>Shibata, Takayuki</au><au>Niwa, Hideharu</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Extended charge-transfer model for Na x Co[Fe(CN) 6 ] 0.82</atitle><jtitle>Japanese Journal of Applied Physics</jtitle><date>2021-04-01</date><risdate>2021</risdate><volume>60</volume><issue>4</issue><spage>40904</spage><pages>40904-</pages><issn>0021-4922</issn><eissn>1347-4065</eissn><abstract>Cobalt Prussian blue analogues (Na
x
Co[Fe(CN)
6
]
y
;
x
∼
4
y
−
3
) whose valences are close to
Co
3
+
and
Fe
2
+
show characteristic phase transitions triggered by cooperative charge transfer (CT) from
Fe
2
+
to
Co
3
+
. Here, we extended the cooperative CT to the entire region of sodium concentration (
0
≤
x
≤
4
y
−
2
). We systematically investigated (1) upper (
T
c
u
) and lower (
T
c
l
) critical temperature, (2) variation of the [
Fe
2
+
(CN)
6
]
4
−
([
Fe
3
+
(CN)
6
]
3
−
) concentration, and (3) spectral weight (
I
ET
) due to electron transfer from
Fe
2
+
to
Co
3
+
of thin films of Na
x
Co[Fe(CN)
6
]
0.82
against
x
. In a wide
x
region from 0.00 to 0.57, we observed first-order phase transition triggered by the cooperative CT. The extended CT model reproduces the
x
-dependent behavior of the [Fe
II
(CN)
6
]
4
−
([Fe
III
(CN)
6
]
3
−
) concentration and
I
ET
, except for the high-
x
region above
x
∼
0.9
.</abstract><doi>10.35848/1347-4065/abefb3</doi><orcidid>https://orcid.org/0000-0002-1009-7198</orcidid></addata></record> |
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| language | eng |
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| source | IOP Publishing Journals; Institute of Physics (IOP) Journals - HEAL-Link |
| title | Extended charge-transfer model for Na x Co[Fe(CN) 6 ] 0.82 |
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