Zobrazeno 1 - 10
of 493
pro vyhledávání: '"Hikihara, T."'
Publikováno v:
Phys. Rev. B 103, 014411 (2021)
We investigated the magnetoelastic properties of the quasi-one-dimensional spin-1/2 frustrated magnet LiCuVO$_4$. Longitudinal-magnetostriction experiments were performed at 1.5 K in high magnetic fields of up to 60 T applied along the $b$ axis, i.e.
Externí odkaz:
http://arxiv.org/abs/2010.08396
Publikováno v:
Phys. Rev. B 81, 224433 (2010)
We study the one-dimensional spin-1/2 Heisenberg model with antiferromagnetic nearest-neighbor J_1 and next-nearest-neighbor J_2 exchange couplings in magnetic field h. With varying dimensionless parameters J_2/J_1 and h/J_1, the ground state of the
Externí odkaz:
http://arxiv.org/abs/1004.0622
The manipulation of locked intrinsic localized modes/discrete breathers is studied experimentally in nonlinear electric transmission line arrays. Introducing a static lattice impurity in the form of a capacitor, resistor or inductor has been used bot
Externí odkaz:
http://arxiv.org/abs/0707.2823
Publikováno v:
Phys. Rev. B 76, 075302 (2007)
We consider interacting electrons in a quantum wire in the case of a shallow confining potential and low electron density. In a certain range of densities, the electrons form a two-row (zigzag) Wigner crystal whose spin properties are determined by n
Externí odkaz:
http://arxiv.org/abs/0704.0776
Publikováno v:
Phys. Rev. B 72, 035301 (2005)
We study the renormalization of a single impurity potential in one-dimensional interacting electron systems in the presence of magnetic field. Using the bosonization technique and Bethe ansatz solutions, we determine the renormalization group flow di
Externí odkaz:
http://arxiv.org/abs/cond-mat/0412403
Autor:
Furusaki, A., Hikihara, T.
Publikováno v:
Phys. Rev. B 69, 094429 (2004)
Exact low-temperature asymptotic behavior of boundary contribution to specific heat and susceptibility in the one-dimensional spin-1/2 XXZ model with exchange anisotropy 1/2 < \Delta \le 1 is analytically obtained using the Abelian bosonization metho
Externí odkaz:
http://arxiv.org/abs/cond-mat/0310517
Autor:
Hikihara, T., Furusaki, A.
Publikováno v:
Phys. Rev. B 69, 064427 (2004)
We present accurate numerical estimates for the correlation amplitudes of leading and main subleading terms of the two- and four-spin correlation functions in the one-dimensional spin-1/2 XXZ model under a magnetic field. These data are obtained by f
Externí odkaz:
http://arxiv.org/abs/cond-mat/0310391
Publikováno v:
Phys. Rev. B68, 064410 (2003)
Recent experiments of the quasi-one-dimensional spin-1/2 antiferromagnet Copper Benzoate established the existence of a magnetic field induced gap. The observed neutron scattering intensity exhibits resolution limited peaks at both the antiferromagne
Externí odkaz:
http://arxiv.org/abs/cond-mat/0304244
Recent studies on the frustrated quantum spin chains with easy-plane anisotropy are reviewed. We are particularly interested in novel "chiral" phases characterized by the spontaneous breaking of the parity symmetry. The ground-state phase diagrams of
Externí odkaz:
http://arxiv.org/abs/cond-mat/0204022
Autor:
Hikihara, T., Furusaki, A.
Publikováno v:
Phys. Rev. B 63, 134438 (2001)
We study the ground-state spin correlations in the gapless incommensurate regime of a S=1/2 XXZ chain and a two-leg antiferromagnetic ladder under a magnetic field, in which the gapless excitations form a Tomonaga-Luttinger (TL) liquid. We calculate
Externí odkaz:
http://arxiv.org/abs/cond-mat/0011320