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Low-temperature magnetoresistance of (111) ( <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>La</mml:mi><mml:mrow><mml:mn>0.3</mml:mn></mml:mrow></mml:msub><mml:msub><mml:mi>Sr</mml:mi><mml:mrow><mml:mn>0.7</mml:mn></mml:mrow></mml:msub><mml:mrow><mml:mo>)</mml:mo><mml:mo>(</mml:mo></mml:mrow><mml:msub><mml:mi>Al</mml:mi><mml:mrow><mml:mn>0.65</mml:mn></mml:mrow></mml:msub><mml:mrow><mml:msub><mml:mi>Ta</mml:mi><mml:mrow><mml:mn>0.35</mml:mn></mml:mrow></mml…
The two dimensional conducting interfaces in SrTiO$_3$-based systems are known to show a variety of coexisting and competing phenomena in a complex phase space. Magnetoresistance measurements, which are typically used to extract information about the various interactions in these systems, must be interpreted with care, since multiple interactions can contribute …