Chemical tuning between triangular and honeycomb structures in a <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mn>5</mml:mn><mml:mi>d</mml:mi></mml:mrow></mml:math> spin-orbit Mott insulator
Physical review. B./Physical review. B