Isospin model for suppression of charge order in hole-doped NaV2O5
作者： Peter Thalmeier
DOI: 10.1016/S0921-4526(03)00017-6
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摘要: Abstract The layered perovskite compound NaV 2 O 5 exhibits charge ordering (CO) and spin-gap formation which is driven by inter-site Coulomb forces exchange dimerisation. Experimentally it was found that rapidly suppressed doping. CO in has a quasi-1D character due to inter-ladder frustration the Trellis lattice. Based on an extended isospin ( T =1) approach for hole-doped ladders we construct Ising-like model explains qualitatively destruction of phase as function hole doping δ show how parameter depends ratio hopping energies.
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AN Yaresko, VN Antonov, H Eschrig, P Thalmeier, P Fulde, None, Electronic structure and exchange coupling inα′−NaV2O5 Physical Review B. ,vol. 62, pp. 15538- 15546 ,(2000) , 10.1103/PHYSREVB.62.15538
M. Lohmann, H.-A. Krug von Nidda, A. Loidl, E. Morré, M. Dischner, C. Geibel, Electron-spin resonance study of Na1-xLixV2O5 Physical Review B. ,vol. 61, pp. 9523- 9526 ,(2000) , 10.1103/PHYSREVB.61.9523
P Thalmeier, P Fulde, Charge ordering and spin-Peierls transition in α' − NaV2O5 EPL. ,vol. 44, pp. 242- 248 ,(1998) , 10.1209/EPL/I1998-00463-3
A. Bernert, P. Thalmeier, P. Fulde, Microscopic model for the structural transition and spin gap formation in alpha(')-NaV2O5 Physical Review B. ,vol. 66, pp. 165108- 165108 ,(2002) , 10.1103/PHYSREVB.66.165108
Mario Cuoco, Peter Horsch, Frank Mack, Theoretical study of the optical conductivity ofα′−NaV2O5 Physical Review B. ,vol. 60, pp. R8438- R8441 ,(1999) , 10.1103/PHYSREVB.60.R8438
Emi Ninomiya, Hironori Nakao, Tetsuo Ohama, Yutaka Ueda, Masahiko Isobe, Youichi Murakami, Yukio Noda, Hiroshi Sawa, Kenji Ohwada, Yasuhiko Fujii, Low-Temperature Structure of the Quarter-Filled Ladder Compound α'-NaV2O5 Journal of the Physical Society of Japan. ,vol. 71, pp. 385- 388 ,(2002) , 10.1143/JPSJ.71.385
V. Yushankhai, P. Thalmeier, Superexchange in the quarter-filled two-leg ladder system NaV2O5. Physical Review B. ,vol. 63, pp. 064402-1- 064402-10 ,(2001) , 10.1103/PHYSREVB.63.064402
P. Fulde, P. Thalmeier, T. Chatterji, A. Bernert, Structure determination, valence, and superexchange in the dimerized low temperature phase of α'-NaV2O5 European Physical Journal B. ,vol. 21, pp. 535- 546 ,(2001) , 10.1007/S100510170164
Jens Lüdecke, Andreas Jobst, Sander van Smaalen, Eckhart Morré, Christoph Geibel, Hans-Georg Krane, Acentric Low-Temperature Superstructure ofNaV2O5 Physical Review Letters. ,vol. 82, pp. 3633- 3636 ,(1999) , 10.1103/PHYSREVLETT.82.3633
Masahiko Isobe, Yutaka Ueda, Effect of Na-deficiency on the spin-Peierls transition in α′-NaV2O5 Journal of Alloys and Compounds. pp. 180- 184 ,(1997) , 10.1016/S0925-8388(97)00376-9