Anisotropic transport properties of tungsten disulfide

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• 作者：Andrea Pisoni^a ; ^{andrea.pisoni@epfl.ch" class="auth_mail" title="E-mail the corresponding author} ; Jacim Jacimovic^a ; ^d ; Richard Gaá ; l^a ; Bá ; lint Ná ; frá ; di^a ; Helmuth Berger^b ; Zsolt Ré ; vay^c ; Lá ; szló ; Forró ; ^a
• 关键词：WS2 ; Thermal conductivity ; Electrical properties ; Crystal defects
• 刊名：Scripta Materialia
• 出版年：2016
• 出版时间：15 March 2016
• 年：2016
• 卷：114
• 期：Complete
• 页码：48-50
• 全文大小：337 K

文摘

Single crystals of WS₂ were prepared by chemical vapor transport method using sulfur as a transport agent. Measurements of electrical resistivity, Seebeck coefficient and thermal conductivity as a function of temperature, along the in-plane and the out-of-plane directions reveal distinct trends. In our interpretation these differences are mainly due to the different nature of the chemical bonding in the two directions and to the presence of impurity intercalates in between the planes.