Intercalation of van der Waals layered materials: A route towards engineering of electron correlation

• 作者: Dapeng Yu Dayu Yan Jingjing Niu Peng Gao Shulin Chen Sixian Yang Wenjie Zhang Xiaosong Wu Xinguo Ren Yanfeng Zhang Youguo Shi Zhepeng Zhang Zhilin Li
• 来源期刊: 中国物理B（英文版）
• 年，卷（期）: 2020,（9）
• 所属期刊栏目: RAPID COMMUNICATION
• 页码范围: 188-197
• 页数: 10页
• 语种: 英文
• DOI: 10.1088/1674-1056/abab85

摘要

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 VS2,we find evidence for electron correlation by extensive magnetic,thermal,electrical,and thermoelectric characterizations.The low temperature Sommerfeld coefficient is 64 mJ.K-2.mo1-1 and the Kadowaki-Woods ratio rKW ～ 0.20a0.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 TK 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.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	Jingjing Niu		1	0	0.0	0.0
2	Wenjie Zhang		1	0	0.0	0.0
3	Zhilin Li		1	0	0.0	0.0
4	Sixian Yang		1	0	0.0	0.0
5	Dayu Yan		1	0	0.0	0.0
6	Shulin Chen		1	0	0.0	0.0
7	Zhepeng Zhang		1	0	0.0	0.0
8	Yanfeng Zhang		1	0	0.0	0.0
9	Xinguo Ren		1	0	0.0	0.0
10	Peng Gao		1	0	0.0	0.0
11	Youguo Shi		1	0	0.0	0.0
12	Dapeng Yu		1	0	0.0	0.0
13	Xiaosong Wu		1	0	0.0	0.0