Preparation and fundamental physical properties of the quaternary chalcogenides SnBi4-xTe3+ySe4-z and PbBi4-xTe3-ySe4-z

Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/100/1706

Title:	Preparation and fundamental physical properties of the quaternary chalcogenides SnBi4-xTe3+ySe4-z and PbBi4-xTe3-ySe4-z
Authors:	KICHAMBARE, P SHARON, M SEKI, Y HAGINO, T NAGATA, S
Keywords:	superconductivity
Issue Date:	1997
Publisher:	ELSEVIER SCIENCE BV
Citation:	SOLID STATE IONICS,101,125-129
Abstract:	The quaternary chalcogenides SnBi4-xTe3+ySe4-z and PbBi4-xTe3-ySe4-z have been prepared and found to possess orthorhombic structure. The chemical composition of materials is confirmed by EDX. SnBi4-xTe3+ySe4-z and PbBi4-xTe3-ySe4-z exhibit a low resistivity 0.0055 ohm cm and 0.1665 ohm cm at room temperature and carrier concentration 7.15 x 10(18) and 1.97 x 10(16) cm(-3) respectively. The Hall measurements show n-type behaviour with mobility of carrier 87 and 2534 M-2/V, and band gap by diffuse reflectance are found to be 4.37 eV and 3.98 eV for SnBi4-xTe3+ySe4-z and PbBi4-xTe3-ySe4-z respectively.
URI:	http://dx.doi.org/10.1016/S0167-2738(97)00227-0 http://dspace.library.iitb.ac.in/xmlui/handle/10054/14908 http://hdl.handle.net/100/1706
ISSN:	0167-2738
Appears in Collections:	Proceedings papers

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