Intercalation of van der Waals layered materials: A route towards engineering of electron correlation
Being parent materials of two-dimensional (2D) crystals, van der Waals layered materials have received revived interest. In most 2D materials, the interaction between electrons is negligible. Introducing the interaction can give rise to a variety of exotic properties. Here, via intercalating a van d...
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| Veröffentlicht in: | Chinese physics B 2020-09, Vol.29 (9), p.97104 |
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| creator | Niu, Jingjing Zhang, Wenjie Li, Zhilin Yang, Sixian Yan, Dayu Chen, Shulin Zhang, Zhepeng Zhang, Yanfeng Ren, Xinguo Gao, Peng Shi, Youguo Yu, Dapeng Wu, Xiaosong |
| description | Being parent materials of two-dimensional (2D) crystals, van der Waals layered materials have received revived interest. In most 2D materials, the interaction between electrons is negligible. Introducing the interaction can give rise to a variety of exotic properties. Here, via intercalating a van der Waals layered compound VS
2
, we find evidence for electron correlation by extensive magnetic, thermal, electrical, and thermoelectric characterizations. The low temperature Sommerfeld coefficient is 64 mJ⋅K
−2
⋅mol
−1
and the Kadowaki–Woods ratio
r
KW
∼ 0.20
a
0
. Both supports an enhancement of the electron correlation. The temperature dependences of the resistivity and thermopower indicate an important role played by the Kondo effect. The Kondo temperature
T
K
is estimated to be around 8 K. Our results suggest intercalation as a potential means to engineer the electron correlation in van der Waals materials, as well as 2D materials. |
| doi_str_mv | 10.1088/1674-1056/abab85 |
| format | Article |
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2
, we find evidence for electron correlation by extensive magnetic, thermal, electrical, and thermoelectric characterizations. The low temperature Sommerfeld coefficient is 64 mJ⋅K
−2
⋅mol
−1
and the Kadowaki–Woods ratio
r
KW
∼ 0.20
a
0
. Both supports an enhancement of the electron correlation. The temperature dependences of the resistivity and thermopower indicate an important role played by the Kondo effect. The Kondo temperature
T
K
is estimated to be around 8 K. Our results suggest intercalation as a potential means to engineer the electron correlation in van der Waals materials, as well as 2D materials.</description><identifier>ISSN: 1674-1056</identifier><identifier>DOI: 10.1088/1674-1056/abab85</identifier><language>eng</language><ispartof>Chinese physics B, 2020-09, Vol.29 (9), p.97104</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c243t-c38138bd5a517ade427bae18672b81cf72561546bd68666f5ba416539970aa053</citedby><cites>FETCH-LOGICAL-c243t-c38138bd5a517ade427bae18672b81cf72561546bd68666f5ba416539970aa053</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>Niu, Jingjing</creatorcontrib><creatorcontrib>Zhang, Wenjie</creatorcontrib><creatorcontrib>Li, Zhilin</creatorcontrib><creatorcontrib>Yang, Sixian</creatorcontrib><creatorcontrib>Yan, Dayu</creatorcontrib><creatorcontrib>Chen, Shulin</creatorcontrib><creatorcontrib>Zhang, Zhepeng</creatorcontrib><creatorcontrib>Zhang, Yanfeng</creatorcontrib><creatorcontrib>Ren, Xinguo</creatorcontrib><creatorcontrib>Gao, Peng</creatorcontrib><creatorcontrib>Shi, Youguo</creatorcontrib><creatorcontrib>Yu, Dapeng</creatorcontrib><creatorcontrib>Wu, Xiaosong</creatorcontrib><title>Intercalation of van der Waals layered materials: A route towards engineering of electron correlation</title><title>Chinese physics B</title><description>Being parent materials of two-dimensional (2D) crystals, van der Waals layered materials have received revived interest. In most 2D materials, the interaction between electrons is negligible. Introducing the interaction can give rise to a variety of exotic properties. Here, via intercalating a van der Waals layered compound VS
2
, we find evidence for electron correlation by extensive magnetic, thermal, electrical, and thermoelectric characterizations. The low temperature Sommerfeld coefficient is 64 mJ⋅K
−2
⋅mol
−1
and the Kadowaki–Woods ratio
r
KW
∼ 0.20
a
0
. Both supports an enhancement of the electron correlation. The temperature dependences of the resistivity and thermopower indicate an important role played by the Kondo effect. The Kondo temperature
T
K
is estimated to be around 8 K. Our results suggest intercalation as a potential means to engineer the electron correlation in van der Waals materials, as well as 2D materials.</description><issn>1674-1056</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNo9kMtOwzAQRb0AiVLYs_QPhNpx_Ci7quJRqRIbEEtrbE-qoDRGtgH170mUitVId-49i0PIHWf3nBmz4ko3FWdSrcCBM_KCLP6jK3Kd8ydjirNaLAjuhoLJQw-liwONLf2BgQZM9AOgz7SHEyYM9AhjrRuTB7qhKX4XpCX-QgqZ4nDoBhy_w2HaY4--pJHlY0o4c2_IZTtu8fZ8l-T96fFt-1LtX593282-8nUjSuWF4cK4IEFyDQGbWjtAbpSuneG-1bVUXDbKBWWUUq100HAlxXqtGQCTYknYzPUp5pywtV-pO0I6Wc7spMZOHuzkwc5qxB-i6lrl</recordid><startdate>20200901</startdate><enddate>20200901</enddate><creator>Niu, Jingjing</creator><creator>Zhang, Wenjie</creator><creator>Li, Zhilin</creator><creator>Yang, Sixian</creator><creator>Yan, Dayu</creator><creator>Chen, Shulin</creator><creator>Zhang, Zhepeng</creator><creator>Zhang, Yanfeng</creator><creator>Ren, Xinguo</creator><creator>Gao, Peng</creator><creator>Shi, Youguo</creator><creator>Yu, Dapeng</creator><creator>Wu, Xiaosong</creator><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20200901</creationdate><title>Intercalation of van der Waals layered materials: A route towards engineering of electron correlation</title><author>Niu, Jingjing ; Zhang, Wenjie ; Li, Zhilin ; Yang, Sixian ; Yan, Dayu ; Chen, Shulin ; Zhang, Zhepeng ; Zhang, Yanfeng ; Ren, Xinguo ; Gao, Peng ; Shi, Youguo ; Yu, Dapeng ; Wu, Xiaosong</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c243t-c38138bd5a517ade427bae18672b81cf72561546bd68666f5ba416539970aa053</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Niu, Jingjing</creatorcontrib><creatorcontrib>Zhang, Wenjie</creatorcontrib><creatorcontrib>Li, Zhilin</creatorcontrib><creatorcontrib>Yang, Sixian</creatorcontrib><creatorcontrib>Yan, Dayu</creatorcontrib><creatorcontrib>Chen, Shulin</creatorcontrib><creatorcontrib>Zhang, Zhepeng</creatorcontrib><creatorcontrib>Zhang, Yanfeng</creatorcontrib><creatorcontrib>Ren, Xinguo</creatorcontrib><creatorcontrib>Gao, Peng</creatorcontrib><creatorcontrib>Shi, Youguo</creatorcontrib><creatorcontrib>Yu, Dapeng</creatorcontrib><creatorcontrib>Wu, Xiaosong</creatorcontrib><collection>CrossRef</collection><jtitle>Chinese physics B</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Niu, Jingjing</au><au>Zhang, Wenjie</au><au>Li, Zhilin</au><au>Yang, Sixian</au><au>Yan, Dayu</au><au>Chen, Shulin</au><au>Zhang, Zhepeng</au><au>Zhang, Yanfeng</au><au>Ren, Xinguo</au><au>Gao, Peng</au><au>Shi, Youguo</au><au>Yu, Dapeng</au><au>Wu, Xiaosong</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Intercalation of van der Waals layered materials: A route towards engineering of electron correlation</atitle><jtitle>Chinese physics B</jtitle><date>2020-09-01</date><risdate>2020</risdate><volume>29</volume><issue>9</issue><spage>97104</spage><pages>97104-</pages><issn>1674-1056</issn><abstract>Being parent materials of two-dimensional (2D) crystals, van der Waals layered materials have received revived interest. In most 2D materials, the interaction between electrons is negligible. Introducing the interaction can give rise to a variety of exotic properties. Here, via intercalating a van der Waals layered compound VS
2
, we find evidence for electron correlation by extensive magnetic, thermal, electrical, and thermoelectric characterizations. The low temperature Sommerfeld coefficient is 64 mJ⋅K
−2
⋅mol
−1
and the Kadowaki–Woods ratio
r
KW
∼ 0.20
a
0
. Both supports an enhancement of the electron correlation. The temperature dependences of the resistivity and thermopower indicate an important role played by the Kondo effect. The Kondo temperature
T
K
is estimated to be around 8 K. Our results suggest intercalation as a potential means to engineer the electron correlation in van der Waals materials, as well as 2D materials.</abstract><doi>10.1088/1674-1056/abab85</doi></addata></record> |
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| title | Intercalation of van der Waals layered materials: A route towards engineering of electron correlation |
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