Magnetism and superconductivity in La0.7Ca0.3MnO3/YBa2Cu3O7−δ superlattices

Magnetism and superconductivity in La0.7Ca0.3MnO3/YBa2Cu3O7−δ superlattices

Interfacial magnetism in manganite superlattices

We use a two-orbital double-exchange model including superexchange interactions, Jahn-Teller lattice distortions, and long-range Coulomb interactions to investigate the origin of magnetically disordered interfaces between ferromagnetic metallic (FM) and antiferromagnetic insulating (AFI) manganites in FM/AFI superlattices. The induced magnetic moment in the AFI layer varies nonmonotonically wit...

Magnetism of LaAlO3/SrTiO3 superlattices

Unconventional superconductivity and magnetism in CePt3Si1−xGex

CePt3Si is a novel ternary compound exhibiting antiferromagnetic order at TN ≈ 2.2 K and superconductivity (SC) at Tc ≈ 0.75 K. Large values of H ′ c2 ≈ −8.5 T/K and Hc2(0) ≈ 5 T indicate Cooper pairs formed out of heavy quasiparticles. The mass enhancement originates from Kondo interaction with a characteristic temperature TK ≈ 8 K. NMR and μSRmeasurements evidence coexistence of SC and long r...

Dilute Annealed Magnetism and High Temperature Superconductivity

It has become increasingly appreciated that the strong antiferromagnetic coupling between in-plane Cu atoms in most of the high-temperature superconductors is not merely fortuitous [ 1-4 ]. However a coherent understanding of exactly how the magnetic interactions influence the observed superconductivity has been elusive. Here we focus on the prototype compound, La2_xSrxCuO 4 ( " 2 1 4 " ) . We ...