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Tunable electronic anisotropy in single-crystal<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>A</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>Cr</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi>As</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow><mml:mo>(</mml:mo><mml:mi>A</mml:mi><mml:mo>=</mml:mo><mml:mi mathvariant="normal">K</mml:mi><mml:mo>,</mml:mo><mml:mo> </mml:mo><mml:mi mathvariant="normal">Rb</mml:mi><mml:mo>)</mml:mo></mml:math>…
The authors report structural, transport, magnetic and thermodynamic properties of of single-crystalline samples of Rb${}_{2}$Cr${}_{3}$As${}_{3}$ in both the normal and superconducting states. By compare them with those of K${}_{2}$Cr${}_{3}$As${}_{3}$ they argue for the evidence of reduced dimensionality and the ability to control it by structural tuning.