Spin Dynamics of NTENP and NDMAP in Transverse Magnetic Fields(Low Dimensional Systems, Field-Induced Phase Transitions and Dynamics in Quantum Spin Systems)
スポンサーリンク
概要
- 論文の詳細を見る
We calculate the field dependence of dynamical structure factors of the S=1 bond-alternating Heisenberg-chain compound Ni (C_9D_<24>N_4)(NO_2) ClO_4 and the S=1 Haldanegap compound Ni (C_5D_<14>N_2)_2N_3 (PF_6). We show that in the former system the highest magnon branch vanishes at H〜0.63H_c and one gapped branch emerges in H>H_c, where H_c is the critical field for the energy-gap closing. In the latter system, by contrast, three distinct magnon branches appear below and above H_c. The results are in qualitative agreement with recent experimental findings.
- 2005-10-31
著者
-
Suga Sei-ichiro
Department Of Applied Physics Osaka University
-
Suga Seiichiro
Department Of Applied Physics Osaka University
-
Suzuki Takahumi
Department Of Applied Physics Osaka University
関連論文
- Elementary Excitation Spectrums for Correlated Electron Systems at Finite Temperature
- Spin Dynamics of NTENP and NDMAP in Transverse Magnetic Fields(Low Dimensional Systems, Field-Induced Phase Transitions and Dynamics in Quantum Spin Systems)
- Effects of Degenerate Orbitals on the Hubbard Model
- Effects of Degenerate Orbitals on the Hubbard Model
- Cellular Dynamical Mean Field Study on Two-Orbital Hubbard Model with Different Bandwidths
- Three-Orbital Kondo Effect in Single Quantum Dot System with Plural Electrons(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- Susceptibility of a Magnetic Impurity in Two-Dimensional Disordered Electron Systems(Condensed Matter : Electronic Structure, Electrical, Mgagnetic and Optical Properties)
- Elementary Excitations for the Isotropic S=1/2 One-Dimensional Heisenberg Antiferromagnet at Finite Temperatures
- Supersolid State of Ultracold Fermions in Optical Lattice(Condensed matter: structure and mechanical and thermal properties)
- Phase Diagram of Orbital-Selective Mott Transitions at Finite Temperatures(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
- Dynamical Structure Factors of the S=1 / 2 Bond-Alternating Spin Chain with a Next-Nearest-Neighbor Interaction in Magnetic Fields : Condensed Matter: Electronic Properties, etc.
- Infrared Optical Absorption Spectra in Cuprate Two-Leg Spin-Ladder Systems with a Cyclic Four-Spin Interaction(Low Dimensional Systems, Field-Induced Phase Transitions and Dynamics in Quantum Spin Systems)
- Parity Effects in Nanoscale Metallic Grain Including a Magnetic Impurity
- Dynamics of S = 1/2 Two-Leg Spin Ladder Systems
- Dynamics and Incommensurate Spin Correlation of the Magnetization Plateau State in the S=1/2 Bond-Alternating Spin Chain with a Next-Nearest-Neighbor Interaction
- NMR Relaxation Rate of (quasi-)One-Dimensional Spin-Gapped Systems in Magnetic Fields : Condensed Matter: Electronic Properties, etc.
- Intersubband Elementary Excitations of Quasi-Two-Dimensional Electron Systems in Quantum-Well
- Dynamical Structure Factors of S=1 Bond-Alternating Heisenberg Chains at Finite Temperatures(Low Dimensional Systems, Field-Induced Phase Transitions and Dynamics in Quantum Spin Systems)
- Universal Temperature Dependence of Electron Number in One-Dimensional Hubbard Model
- Tomonaga-Luttinger Liquid in Quasi-One-Dimensional Antiferromagnet BaCo_2V_2O_8 in Magnetic Fields(Condensed matter: electronic structure and electrical, magnetic, and optical properties)