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首页> 外文期刊>Journal of Crystal Growth >Single crystal growth of the metallic triangular-lattice antiferromagnet PdCrO_2
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Single crystal growth of the metallic triangular-lattice antiferromagnet PdCrO_2

机译：金属三角晶格反铁磁体PdCrO_2的单晶生长

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摘要

We report details of single crystal growth of the metallic triangular-lattice antiferromagnet PdCrO_2 consisting of layers of Pd triangles and Cr triangles stacking along the c-axis. We used the NaCl flux method and obtained the crystals with the size as large as 2 × 3.5 × 0.3 mm~3. We confirmed that single crystals have the delafossite structure with the R3m symmetry. The electrical resistivity along the c-axis and that in the ab plane exhibit metallic temperature dependence with the anisotropic ratio ρ_c/ρ_(ab) of over 300 at low temperatures. The residual resistivity of as small as ρ_(O,ab) = 45nΩcm and the residual resistivity ratio of over 100 indicate high quality of the crystals investigated. Nevertheless, there is no sign of superconductivity down to 0.3 K. These crystals are useful for the investigation of anisotropic magnetic and transport properties including the unconventional anomalous Hall effect (AHE).
机译：我们报告的金属三角晶格反铁磁体PdCrO_2的单晶生长的详细信息，包括沿c轴堆叠的Pd三角形和Cr三角形层。我们使用NaCl助熔剂法获得了尺寸为2×3.5×0.3 mm〜3的晶体。我们证实单晶具有具有R3m对称性的铜铁矿结构。沿c轴的电阻率和ab平面的电阻率在低温下表现出金属温度依赖性，各向异性比ρ_c/ρ_（ab）超过300。残余电阻率小至ρ_（O，ab）=45nΩcm，残余电阻率比超过100，表明所研究晶体的高质量。然而，没有迹象表明低至0.3 K的超导性。这些晶体可用于研究各向异性的磁和输运性质，包括非常规的异常霍尔效应（AHE）。

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