【摘 要】
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The binary pnictide semimetals have attracted considerable attention due to their fantastic physical properties that include topological effects,negative magnetoresistance,Weyl fermions,and large non-saturation magnetoresistance.In this paper,we have succ
【机 构】
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Institutes of Physical Science and Information Technology,Anhui University,Hefei 230601,China;Anhui
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The binary pnictide semimetals have attracted considerable attention due to their fantastic physical properties that include topological effects,negative magnetoresistance,Weyl fermions,and large non-saturation magnetoresistance.In this paper,we have successfully grown the high-quality V1-δSb2 single crystals by Sb flux method and investigated their electronic transport properties.A large positive magnetoresistance that reaches 477%under a magnetic field of 12 T at T=1.8 K was observed.Notably,the magnetoresistance showed a cusp-like feature at the low magnetic fields and such feature weakened gradually as the temperature increased,which indicated the presence of a weak antilocalization effect(WAL).In addition,based upon the experimental and theoretical band structure calculations,V1-δSb2 is a research candidate for a flat band.
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