TY - JOUR
T1 - High-field spin dynamics of antiferromagnetic quantum spin chains
AU - Enderle, M.
AU - Regnault, L.P.
AU - Broholm, C.
AU - Reich, D.
AU - Zaliznyak, I.
AU - Sieling, M.
AU - Rønnow, H.M.
AU - McMorrow, D.F.
PY - 2000
Y1 - 2000
N2 - The characteristic internal order of macroscopic quantum ground states in one-dimensional spin systems is usually not directly accessible, but reflected in the spin dynamics and the field dependence of the magnetic excitations. In high magnetic fields quantum phase transitions are expected. We present recent work on the high-field spin dynamics of the S = I antiferromagnetic Heisenberg chains NENP (Haldane ground state) and CsNiCl3 (quasi-1D HAF close to the quantum critical point), the uniform S = 1/2 chain CTS, and the spin-Peierls system CuGeO3. (C) 2000 Elsevier Science B,V. All rights reserved.
AB - The characteristic internal order of macroscopic quantum ground states in one-dimensional spin systems is usually not directly accessible, but reflected in the spin dynamics and the field dependence of the magnetic excitations. In high magnetic fields quantum phase transitions are expected. We present recent work on the high-field spin dynamics of the S = I antiferromagnetic Heisenberg chains NENP (Haldane ground state) and CsNiCl3 (quasi-1D HAF close to the quantum critical point), the uniform S = 1/2 chain CTS, and the spin-Peierls system CuGeO3. (C) 2000 Elsevier Science B,V. All rights reserved.
KW - Nye funktionelle materialer
U2 - 10.1016/S0921-4526(99)01737-8
DO - 10.1016/S0921-4526(99)01737-8
M3 - Journal article
SN - 0921-4526
VL - 276-278
SP - 560
EP - 561
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
ER -