activity
19962014
most citedExact dimer ground state of the two dimensional Heisenberg spin system SrCu_2(BO_3)_2

411 citations · 2.2k across the 49 of their papers we have counts for

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Showing 2004Show all

6 papers · 1 filter

cond-mat.str-el2004

Electronic Properties of Transuranium Compounds with HoCoGa-Type Tetragonal Crystal Structure

Takahiro Maehira, Takashi Hotta, Kazuo Ueda +1

By using a relativistic linear augmented-plane-wave method with the one-electron potential in the local-density approximation, we investigate energy band structures and the Fermi s…

cond-mat.mes-hall2004★ 37 cited

Theory of Fano-Kondo effect of transport properties through quantum dots

Isao Maruyama, Naokazu Shibata, Kazuo Ueda

The Fano-Kondo effect in zero-bias conductance is investigated based on a theoretical model for the T-shaped quantum dot. The conductance as a function of the gate voltage is gener…

cond-mat.str-el2004★ 7 cited

Kondo hole in one-dimensional Kondo insulators

Isao Maruyama, Naokazu Shibata, Kazuo Ueda

Properties of a nonmagnetic impurity in Kondo insulators are investigated by considering a one-dimensional Kondo lattice model with depletion of a localized spin. The ground-state…

cond-mat.mes-hall2004★ 6 cited

Conductance through Quantum Dots Studied by Finite Temperature DMRG

Isao Maruyama, Naokazu Shibata, Kazuo Ueda

With the Finite temperature Density Matrix Renormalization Group method (FT-DMRG), we depeloped a method to calculate thermo-dynamical quantities and the conductance of a quantum d…

cond-mat.str-el2004★ 17 cited

Theory of Metal-Insulator Transition in PrRu4P12 and PrFe4P12

S. H. Curnoe, H. Harima, K. Takegahara +1

All symmetry allowed couplings between the 4f^2-electron ground state doublet of trivalent praseodymium in PrRu4P12 and PrFe4P12 and displacements of the phosphorus, iron or ruthen…

cond-mat.str-el2004★ 15 cited

Odd-Parity Triplet Pair Induced by Hund's Rule Coupling

Takashi Hotta, Kazuo Ueda

We discuss microscopic aspects of odd-parity triplet pair in orbital degenerate systems. From the concept of off-diagonal long-range order, a pair state is unambiguously defined as…