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11 papers · 2 filters
Origin of Polar Distortion in LiNbO3-type "Ferroelectric" Metals: Role of A-site Instability and Short-Range Interactions
Hongjun Xiang
Since conduction electrons of a metal screen effectively the local electric dipole moments, it was widely believed that the ferroelectric-like distortion cannot occur in metals. Re…
Unconventional thermal cloak hiding an object outside the cloak
Y. Gao, J. P. Huang
All the thermal cloaks reported in the literature can be used to thermally hide an object inside the cloak. However, a common limitation of this kind of thermal cloaks is that the…
First-principles Study On The Electronic And Optical Properties Of Cubic ABX3 Halide Perovskites
Li Lang, Ji-Hui Yang, Heng-Rui Liu +2
The electronic properties of ABX3 (A = Cs, CH3NH3, NH2CHNH2; B = Sn, Pb; X = Cl, Br, I) type compounds in the cubic phase are systematically studied using the first-principles calc…
What Is Armchair-Zigzag Grain Boundary Structure in Graphene?
Zheng-Lu Li, Hai-Yuan Cao, Ji-Hui Yang +4
We have developed a new global optimization method for the determination of interface structure based on the differential evolution algorithm. Here, we applied this method to searc…
Polarization Enhancement in Perovskite Superlattices by Oxygen Octahedral Tilts
X. Z. Lu, X. G. Gong, H. J. Xiang
Interface engineering in perovskite oxide superlattices has developed into a flourishing field, enabling not only further tuning of the exceptional properties, but also giving acce…
Experimental test of the spin mixing interface conductivity concept
Mathias Weiler, Matthias Althammer, Michael Schreier +11
We perform a quantitative, comparative study of the spin pumping, spin Seebeck and spin Hall magnetoresistance effects, all detected via the inverse spin Hall effect in a series of…