S. Saha

Bi $_{2}$ Se $_{3}$ , a layered three dimensional (3D) material, exhibits topological insulating properties due to presence of surface states and a band gap of 0.3 eV in the bulk. We study…

cond-mat.str-el2020★ 1 cited

Bond-bond correlations, gap relations and thermodynamics of spin- $1/2$ chains with spin-Peierls transitions and bond-order-wave phases

Sudip Kumar Saha, Manoranjan Kumar, Zoltán G. Soos

The spin- $1/2$ chain with antiferromagnetic exchange $J_{1}$ and $J_{2} = α J_{1}$ between first and second neighbors, respectively, has both gapless and gapped ( $Δ (α) > 0$ ) quantum phase…

cond-mat.str-el2020★ 15 cited

Modeling the spin-Peierls transition of spin- $1/2$ chains with correlated states: $J_{1} - J_{2}$ model, CuGeO $_{3}$ and TTF-CuS $_{4}$ C $_{4}$ (CF $_{3}$ ) $_{4}$

Sudip Kumar Saha, Monalisa Singh Roy, Manoranjan Kumar +1

The spin-Peierls transition at $T_{S P}$ of spin- $1/2$ chains with isotropic exchange interactions has previously been modeled as correlated for $T > T_{S P}$ and mean field for $T <…

Topological transitions to Weyl states in bulk Bi2​Se3​: Effect of hydrostatic pressure and doping

Bond-bond correlations, gap relations and thermodynamics of spin-1/2 chains with spin-Peierls transitions and bond-order-wave phases

Modeling the spin-Peierls transition of spin-1/2 chains with correlated states: J1​−J2​ model, CuGeO3​ and TTF-CuS4​C4​(CF3​)4​

Topological transitions to Weyl states in bulk Bi $_{2}$ Se $_{3}$ : Effect of hydrostatic pressure and doping

Bond-bond correlations, gap relations and thermodynamics of spin- $1/2$ chains with spin-Peierls transitions and bond-order-wave phases

Modeling the spin-Peierls transition of spin- $1/2$ chains with correlated states: $J_{1} - J_{2}$ model, CuGeO $_{3}$ and TTF-CuS $_{4}$ C $_{4}$ (CF $_{3}$ ) $_{4}$