Published 2019-05-01
“…Next, several routes towards involving both <inline-formula> <math display="inline"> <semantics> <msub> <mi>e</mi> <mi>g</mi> </msub> </semantics> </math> </inline-formula> orbital symmetries for doped holes are discussed: (i) some give superconductivity in a CuO<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mn>2</mn> </msub> </semantics> </math> </inline-formula> monolayer on Bi2212 superconductors, Sr<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mn>2</mn> </msub> </semantics> </math> </inline-formula>CuO<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mrow> <mn>4</mn> <mo>−</mo> <mi>δ</mi> </mrow> </msub> </semantics> </math> </inline-formula>, Ba<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mn>2</mn> </msub> </semantics> </math> </inline-formula>CuO<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mrow> <mn>4</mn> <mo>−</mo> <mi>δ</mi> </mrow> </msub> </semantics> </math> </inline-formula>, while (ii) others as
nickelate heterostructures or Eu<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mrow> <mn>2</mn> <mo>−</mo> <mi>x</mi> </mrow> </msub> </semantics> </math> </inline-formula>Sr<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mi>x</mi> </msub> </semantics> </math> </inline-formula>NiO<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mn>4</mn> </msub> </semantics> </math> </inline-formula>, could in principle realize it as well. …”
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