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cond-mat.str-el2007
Transfer-matrix renormalization group study of the spin ladders with cyclic four-spin interactions
H. T. Lu, L. Q. Sun, Shaojin Qin +1
The temperature dependence of the specific heat and spin susceptibility of the spin ladders with cyclic four-spin interactions in the rung-singlet phase is explored by making use o…
cond-mat.str-el2001
Charge dynamics and metal-insulator transition in SiGd and SiY alloys
D. N. Basov, A. M. Bratkovsky, P. F. Henning +5
Carrier dynamics in amorphous a-SiRE (RE=Gd, Y) films has been studied in the doping regime close to the metal-insulator transition by means of infrared spectroscopy.…