摘要We propose three models of pairing ladders, in which two types of atoms, A and B, exist, and the corresponding atoms in different chains are pairng, i.e. if atom A is in a site of one chain, the atom in the corresponding site of another chain should be atom B. It is found that there are three resonant states in the ladder when the two types of atoms are both random dimers (RD) in the same chain. No extended state exists in the ladder when only one type of atom is RD distributed or two types of atoms both are random distributed in the same chain.
Abstract：We propose three models of pairing ladders, in which two types of atoms, A and B, exist, and the corresponding atoms in different chains are pairng, i.e. if atom A is in a site of one chain, the atom in the corresponding site of another chain should be atom B. It is found that there are three resonant states in the ladder when the two types of atoms are both random dimers (RD) in the same chain. No extended state exists in the ladder when only one type of atom is RD distributed or two types of atoms both are random distributed in the same chain.
HU Dong-Sheng**, ZHANG Yan-Ling, YIN Xiao-Gang, ZHU Chen-Ping, ZHANG Yong-Mei. Resonant Tunneling States of a Pairing Ladder with Random Dimer Chains[J]. 中国物理快报, 2012, 29(2): 27101-027101.
HU Dong-Sheng, ZHANG Yan-Ling, YIN Xiao-Gang, ZHU Chen-Ping, ZHANG Yong-Mei. Resonant Tunneling States of a Pairing Ladder with Random Dimer Chains. Chin. Phys. Lett., 2012, 29(2): 27101-027101.
[1] Abrahams E, Anderson P W, Licciardello D C and Ramakrishnan T V 1979 Phys. Rev. Lett. 42 673
[2] Sarma Das S, He S and Xie X C 1988 Phys. Rev. Lett. 61 2144
[3] Izrailev F M and Krokhin AA 1999 Phys. Rev. Lett. 82 4062
[4] Dunlap D, Wu H L and Philips P W 1990 Phys. Rev. Lett. 65 88
[5] Xiong S J 1993 Appl. Phys. Lett. 63 81
[6] Ojeda P, Huerta Quintanilla R and Rodríguez Achach M 2002 Phys. Rev. B 65 233102
[7] Liu Y M, Peng R W, Huang X Q, Wang M, Hu A and Jiang S S 2003 Phys. Rev. B 67 205209
[8] Sedrakyan T 2004 Phys. Rev. B 69 085109
[9] Hu D S, Lu X J, Zhang Y M and Zhu C P 2009 Chin. Phys. B 18 2498
[10] Mitra T and Thakur P K 1996 Phys. Rev. B 53 9895
[11] Sedrakyan T and Ossipov A 2004 Phys. Rev. B 70 214206
[12] Hu D S, Zhu C P and Zhang Y M 2011 Chin. Phys. B 20 017104
[13] Sil S, Maiti S K and Chakrabarti A 2008 Phys. Rev. B 78 113103
[14] de Moura F A B F, Caetano R A and Lyra M L 2010 Phys. Rev. B 81 125104
[15] de Moura F A B F, Leao F F S and Lyra M L 2011 J. Phys.: Condens. Matter 23 135303
[16] Guo A M and Xiong S J 2011 Phys. Rev. B 83 245108
[17] Malacinski G M and Freifelder D 1998 Essentials of Molecular Biology (Boston: Jones and Bartlett)
[18] Eley D D and Spivey D I 1962 Trans. Faraday Soc. 58 411
[19] Yi J 2003 Phys. Rev. B 68 193103
[20] Apalkov V M and Chakraborty T 2005 Phys. Rev. B 71 033102
[21] Caetano R A and Schulz P A 2005 Phys. Rev. Lett. 95 126601
[22] Xiong G and Wang X R 2005 Phys. Lett. A 344 64
[23] Diaz E, Sedrakyan A, Sedrakyan D and Dominguez Adame F 2007 Phys. Rev. B 75 014201
[24] Hu D S, Zhu C P, Zhang L Q, He D R and Wang B H 2008 Chin. Phys. Lett. 25 1822
[25] Xiong S J and Evangelou S N 2001 Phys. Rev. B 64 113107
2012, Vol. 29 
