Authors: S Lee; J Jiang; Y Zhang; C W Bark; J D Weiss; C Tarantini; C T Nelson; H W Jang; C M Folkman; S H Baek; A Polyanskii; D Abraimov; A Yamamoto; J W Park; X Q Pan; E E Hellstrom; D C Larbalestier; C B Eom Journal: Nat Mater Date: 2010-02-28 Impact factor: 43.841