NP Ong | TU Delft Repository

Superconductivity in CuxBi2Se3 and its implications for pairing in the undoped topological insulator

Journal article (2010) - YS Hor (author), AJ Williams (author), JG Checkelsky (author), P Roushan (author), J. Seo (author), Q. Xu (author), H.W. Zandbergen (author), A Yazdani (author), NP Ong (author), RJ Cava (author)

Bi2Se3 is one of a handful of known topological insulators. Here we show that copper intercalation in the van der Waals gaps between the Bi2Se3 layers, yielding an electron concentration of similar to 2 x 10(20) cm(-3), results in superconductivity at 3.8 K in CuxBi2Se3 for 0.12@ ...

Superconductivity in CuxTiSe2

Journal article (2006) - E Morosan (author), H.W. Zandbergen (author), BS Dennis (author), JWG Bos (author), Y Onose (author), T Klimczuk (author), AP Ramirez (author), NP Ong (author), RJ Cava (author)

Crystal structure and elementary properties of NaxCoO2 (x=0.32, 0.51, 0.6, 0.75, and 0.92) in the three-layer NaCoO2 family

Journal article (2006) - L Viciu (author), JWG Bos (author), H.W. Zandbergen (author), Q Huang (author), ML Foo (author), S Ishiwata (author), AP Ramirez (author), M Lee (author), NP Ong (author), RJ Cava (author)

Formation of transition metal boride and carbide perovskites related to superconducting MgCNi3

Journal article (2004) - RE Schaak (author), M Avdeev (author), WL Lee (author), LG Lawes (author), H.W. Zandbergen (author), JD Jorgensen (author), NP Ong (author), AP Ramirez (author), RJ Cava (author)

Low temperature phase transitions and crystal structure of Na0.5CoO2

Journal article (2004) - Q Huang (author), ML Foo (author), JW Lynn (author), H.W. Zandbergen (author), G Lawes (author), YY Wang (author), BH Toby (author), AP Ramirez (author), NP Ong (author), RJ Cava (author)

Chemical instability of the oxyhydrate superconductor under ambient conditions

Journal article (2003) - ML Foo (author), RE Schaak (author), RJ Cava (author), VL Miller (author), T Klimczuk (author), NS Rogado (author), Y Wang (author), GC Lau (author), C Craley (author), H.W. Zandbergen (author), NP Ong (author)