Nanjing University

output

20022009

most citedQuantum reinforcement learning

418 citations

Showing cond-mat.str-elShow all

10 papers · 1 filter

cond-mat.str-el2009★ 46 cited

Striped Multiferroic Phase in Double-Exchange Model for Quarter-Doped Manganites

Shuai Dong, Rong Yu, J. -M. Liu +1

The phase diagram of quarter-hole-doped perovskite manganites is investigated using the doubleexchange model. An exotic striped type-II multiferroic phase, where 25% of the nearest…

cond-mat.str-el2008★ 84 cited

Metal-insulator transition in $(L a M n O_{3})_{2 n} / (S r M n O_{3})_{n}$ superlattices

Shuai Dong, Rong Yu, Seiji Yunoki +3

The modulation of charge density and spin order in (LaMnO $_{3}$ ) $_{2 n}$ /(SrMnO $_{3}$ ) $_{n}$ ( $n$ =1-4) superlattices is studied via Monte Carlo simulations of the double-exchange model. G…

cond-mat.str-el2008★ 123 cited

Origin of the multiferroic spiral spin-order in the RMnO3 perovskites

Shuai Dong, Rong Yu, Seiji Yunoki +2

The origin of the spiral spin-order in perovskite multiferroic manganites $R$ MnO $_{3}$ ( $R E =$ Tb or Dy) is here investigated using a two $e_{g}$ -orbitals double-exchange model.…

cond-mat.str-el2008★ 132 cited

Ferromagnetic tendency at the surface of CE charge-ordered manganites

Shuai Dong, Rong Yu, Seiji Yunoki +2

Most previous investigations have shown that the surface of a ferromagnetic material may have antiferromagnetic tendencies. However, experimentally the opposite effect has been rec…

cond-mat.str-el2008★ 7 cited

Phonon softening and "forbidden" mode observed by Raman scattering in Na0.5CoO2

Q. M. Zhang, M. an, S. K. Yuan +6

Polarized Raman scattering measurements have been performed on Na0.5CoO2 single crystal from 8 to 305 K. Both the A1g and E1g phonon modes show a softening below Tc1 ~ 83 K. Additi…

cond-mat.str-el2007★ 5 cited

Band structure renormalization and weak pseudogap behavior in Na_{0.33}CoO_2: Fluctuation exchange study based on a single band model

Zi-Jian Yao, Jian-Xin Li, Z. D. Wang

Based on a single band Hubbard model and the fluctuation exchange approximation, the effective mass and the energy band renormalization in Na $_{0.33}$ CoO $_{2}$ is elaborated. The ren…