Cuprates high Tc Heterostructures 0.8 g M 0.4 M: La,ss SroasCuOa 口”M 上:La2CuO4 02 S: La2 Cuoa-M Top layer thickness (unit cell T(K Bozovic et al., Nature 455, 782 (2008) Higher T
Cuprates high Tc Heterostructures Bozovic et al., Nature 455, 782 (2008) Higher Tc !!
Iron Based Heterostructures 08H=0151015T I+Indium 1- Electrodes T(K) V+ Amorphous Si 53K FeSe Films 15304560 SrTiO3(001) 050100150200250300 T(K) Nature Comm. 3, 931(2013), Chinese Phys. Lett. 29 037402(2012) Fese film o FeSe 20 -->30u.C S% Nb BaTIo 0.5ML10uC5%Nb: BaTiO KTao. substrate ●Fese 2An=60k。T silver paste 20406080 020406080 Temperature( K) T(K) Feng, et. al, Nat. Commun. 5: 5044(2014)
Nature Comm. 3, 931 (2013), Chinese Phys. Lett. 29 037402 (2012) Iron Based Heterostructures Feng, et. al, Nat. Commun. 5:5044 (2014)
nature materials LETTERS PUBLISHED ONLINE: 24 NOVEMBER 2014 DO1: 10.1038/NMAT4153 Superconductivity above 100 K in single-layer FeSe films on doped SrTiO3 Jian-Feng Ge, Zhi- Long Liu, Canhua Liu2*, Chun-Lei Gao'2, Dong Qian, 2, Qi-Kun Xue*, Ying Liu', 2,4 and Jin-Feng Jia 2.0c423 10T 1.5 -8T 6T 20|0H=10T Bulk feSe E1.0 2T OT 0.5 8K! 0.5 00峡 050100 T(K 0.0 95 110
Bulk FeSe 8K!
LETTER doi:10.1038/ nature13894 Interfacial mode coupling as the origin of the enhancement of T in FeSe films on SrTiO3 JJ.Lee*,FTSchmitt",R G. Moore *, S. Johnston. 4.,Y -T Cui, W Li, M Yi. Z.K. Liu", M. Hashimoto, Y Zhang. 7 D. H Lu, T P Devereaux, D -H Lee.&Z. X Shen 18K Mean-field 79K fit 50K/ 41K 02 03M0.3-0.3M0.3-03M 50 100 A-) A-) 0.0 STO is key 0.2 10K 50K 70K OK 0.3M0.3-03M0.3-0.3 0.3-0.3M0.3 (A-1) A-y kna(a-1) kna(A-1)
STO is key!
Nano-grains
Nano-grains