Large thermal conductivity due to spins in the Haldane gap system Y2BaNiO5
作者： T. Kawamata , Y. Miyajima , N. Takahashi , T. Noji , Y. Koike
DOI: 10.1016/J.JMMM.2006.10.326
关键词:
摘要: Abstract We have measured the thermal conductivity along a -axis parallel to one-dimensional (1D) spin chain, κ , of Haldane gap system Y 2 BaNiO 5 . As result, we observed due spins, sp as large at least 10 W / K m around 100 K corresponding magnitude gap. The may be bandwidth excitations. Otherwise, it attributed ballistic conduction spins which is theoretically expected in systems with quantum number S = 1
harvard.edu
elsevier.com
sci-hub.se 参考文章(17)
C. Hess, C. Baumann, U. Ammerahl, B. Büchner, F. Heidrich-Meisner, W. Brenig, A. Revcolevschi, Magnon heat transport in ( Sr , Ca , La ) 14 Cu 24 O 41 Physical Review B. ,vol. 64, pp. 184305- ,(2001) , 10.1103/PHYSREVB.64.184305
A. V. Sologubenko, K. Giannó, H. R. Ott, U. Ammerahl, A. Revcolevschi, Thermal conductivity of the hole-doped spin ladder system Sr14-xCaxCu24O41 Physical Review Letters. ,vol. 84, pp. 2714- 2717 ,(2000) , 10.1103/PHYSREVLETT.84.2714
J. Karadamoglou, X. Zotos, Diffusive Transport in Spin-1 Chains at High Temperatures Physical Review Letters. ,vol. 93, pp. 177203- ,(2004) , 10.1103/PHYSREVLETT.93.177203
A. V. Sologubenko, E. Felder, K. Giannò, H. R. Ott, A. Vietkine, A. Revcolevschi, Thermal conductivity and specific heat of the linear chain cuprate Sr 2 CuO 3 : Evidence for thermal transport via spinons Physical Review B. ,vol. 62, ,(2000) , 10.1103/PHYSREVB.62.R6108
M. Matsuda, K. Katsumata, R. S. Eccleston, S. Brehmer, H.-J. Mikeska, Magnetic excitations and exchange interactions in the spin-12two-leg ladder compoundLa6Ca8Cu24O41 Physical Review B. ,vol. 62, pp. 8903- 8908 ,(2000) , 10.1103/PHYSREVB.62.8903
H. Mutka, C. Payen, P. Molinié, J. L. Soubeyroux, P. Colombet, A. D. Taylor, Dynamic structure factor [S(Q,ω)] of theS=1 quasi-one-dimensional Heisenberg antiferromagnet: Neutron-scattering study onAgVP2S6 Physical Review Letters. ,vol. 67, pp. 497- 500 ,(1991) , 10.1103/PHYSREVLETT.67.497
Tetsuya Yokoo, Takehiro Sakaguchi, Kazuhisa Kakurai, Jun Akimitsu, Observation of the Haldane Gap in Y2BaNiO5 Single Crystal Journal of the Physical Society of Japan. ,vol. 64, pp. 3651- 3655 ,(1995) , 10.1143/JPSJ.64.3651
Kazutaka Kudo, Satoru Ishikawa, Takashi Noji, Tadashi Adachi, Yoji Koike, Katsuhiko Maki, Shigenori Tsuji, Ken-ichi Kumagai, Spin Gap and Hole Pairing in the Spin-Ladder Cuprate Sr14-xAxCu24O41 (A=Ca and La) Studied by the Thermal Conductivity. Journal of the Physical Society of Japan. ,vol. 70, pp. 437- 444 ,(2001) , 10.1143/JPSJ.70.437
Satoshi Fujimoto, Satoshi Fujimoto, Norio Kawakami, EXACT DRUDE WEIGHT FOR THE ONE-DIMENSIONAL HUBBARD MODEL AT FINITE TEMPERATURES Journal of Physics A. ,vol. 31, pp. 465- 474 ,(1998) , 10.1088/0305-4470/31/2/008
X. Zotos, Finite Temperature Drude Weight of the One-Dimensional Spin- 1/2 Heisenberg Model Physical Review Letters. ,vol. 82, pp. 1764- 1767 ,(1999) , 10.1103/PHYSREVLETT.82.1764