Superconducting properties of layered perovskite KCa2Nb3O10 and KLaNb2O7
1997; Elsevier BV; Volume: 103; Issue: 4 Linguagem: Inglês
10.1016/s0038-1098(97)00177-4
ISSN1879-2766
AutoresYoshihiko Takano, Shigeru Takayanagi, Shinji Ogawa, T. Yamadaya, Nobuo Môri,
Tópico(s)Multiferroics and related materials
ResumoKCa2Nb3O10 and KLaNb2O7 have triple and double layered perovskite structures, respectively. Although they are electrically insulating, Li intercalation drastically reduces resistivity and induces an insulator-metal transition. The Li intercalated KCa2Nb3O10 exhibits a superconducting transition around 1 K. However, KLaNb2O7 shows no superconducting signal down to 0.5 K.
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