张胜利
物理学中的数学方法，纳米管结构与物理性质，软凝聚态物质及生物大分子的结构与功能
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 姓名：张胜利
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学术头衔：
博士生导师，
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学科领域：
力学
 研究兴趣：物理学中的数学方法，纳米管结构与物理性质，软凝聚态物质及生物大分子的结构与功能
张胜利，西安交通大学理学院应用物理系教授，博士生导师，“腾飞人才计划”特聘教授。研究方向包括：物理学中的数学方法，纳米管结构与物理性质，软凝聚态物质及生物大分子的结构与功能。负责完成国家自然科学基金项目、国家863项目一项及教育部科研基金项目共六项。在国际著名物理学术期刊发表SCI收录论文五十余篇。据SCI数据库检索，这些论文被国内同行专家他引160余次。研究成果获省教委科技进步一等奖、省科技进步一等奖及教育部提名国家自然科学二等奖。

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11
【期刊论文】Helicity energy of a straight singlewall carbon nanotube
张胜利， Shengli Zhang， Shumin Zhao， Jiuyou Lu， and Minggang Xia
PHYSICAL REVIEW B, VOLUME 61, NUMBER 19 15 MAY 2000I，0001，（）：
1年11月30日
The energy of a straight singlewall carbon nanotube (SWNT) with different helicity is proposed by making continuum limit of the curvature elastic energy of a singlelayer curved graphite carbon. We find that the zigzag is the only stable state with the lowest energy for the fixed diameter tubule. Our helicity energy formula agrees well with the energy of the zigzag configuration and armchair configuration SWNT's calculated by quantum molecular dynamics numerical simulation.

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【期刊论文】Optimal configurations of multiwalled carbon nanotubes
张胜利， Shengli Zhang*
PHYSICAL REVIEW B, VOLUME 65, 235411，0001，（）：
1年11月30日
A continuum model of the configurations of multiwalled carbon nanotubes (MWNT's) is studied in this paper. The conformation energy of the MWNT is proposed, and the shape equations for a MWNT are derived. From the shape equations, the solutions corresponding to the straight carbon nanotube and coiled carbon nanotube are given respectively. The configurations of the ring MWNT and the plane curve MWNT are also determined theoretically. It is revealed that there are only a very few valid values of the ring radius of the ring MWNT in the case of the fixed parameters of its cross section. The mismatched effect between the interlayer lattices enriches the variation of ring MWNT's with different size. It is found that the conformation energy per unit arc length of the ring is double of that of straight MWNT for same tube cross section. Typical configurations of the plane curve MWNT obtained from the shape equations agree well with the TEM images of the nanotubes. The total conformation energy of the plane curve MWNT is in the same order of the ring MWNT one for enough long arc length.

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张胜利， Shengli Zhang， ， Shumin Zhao， Minggang Xia， Erhu Zhang， and Tao Xu
PHYSICAL REVIEW B 68, 245419 (2003)，0001，（）：
1年11月30日
We investigate ring formation of singlewalled carbon nanotubes theoretically in this paper. The conformation energy of the nanotubes is identified as the curvature elastic energy of a curved graphite and the intertube van der Waals interaction. The entropy of ring nanotubes depends on the total number of carbon atoms. Assuming continuity, we find that the ring singlewalled carbon nanotube is stable only when the radius of the tube is valued 6.958

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张胜利， Shengli Zhang， Lei Zhang， Run Liang， Erhu Zhang， Yachao Liu， and Shumin Zhao
PHYSICAL REVIEW E 72, 051913 (2005)，0001，（）：
1年11月30日
In this paper, we study the morphological transition of bacterial colonies exposed to ultraviolet radiation by modifying the bacteria model proposed by Delprato et al. Our model considers four factors: the lubricant fluid generated by bacterial colonies, a chemotaxis initiated by the ultraviolet radiation, the intensity of the ultraviolet radiation, and the bacteria's twostage destruction rate with given radiation intensities. Using this modified model, we simulate the ringlike pattern formation of the bacterial colony exposed to uniform ultraviolet radiation. The following is shown. 1 Without the UV radiation the colony forms a disklike pattern and reaches a constant front velocity. 2 After the radiation is switched on, the bacterial population migrates to the edge of the colony and forms a ringlike pattern. As the intensity of the UV radiation is increased the ring forms faster and the outer velocity of the colony decreases. 3 For higher radiation intensities the total population decreases, while for lower intensities the total population increases initially at a small rate and then decreases. 4 After the UV radiation is switched off, the bacterial population grows both outward as well as into the inner region, and the colony's outer front velocity recovers to a constant value. All these results agree well with the experimental observations Phys. Rev. Lett. 87, 158102 (2001). Along with the chemotaxis, we find that lubricant fluid and the twostage destruction rate are critical to the dynamics of the growth of the bacterial colony when exposed to UV radiation, and these were not previously considered.

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【期刊论文】Specific heat of singlewalled carbon nanotubes
张胜利， Shengli Zhang， ， Minggang Xia， Shumin Zhao， Tao Xu， and Erhu Zhang
PHYSICAL REVIEW B 68, 075415 (2003)，0001，（）：
1年11月30日
The specific heat of singlewalled carbon nanotubes SWNT's is studied theoretically in this paper. Making use of the continuum model, phonon dispersion relations are derived numerically and analytically. Finally, expressions for specific heat versus temperature are derived theoretically, and we find that the lattice wave propagating along the length of the SWNT plays the principle role in deciding the value of the specific heat. Our theoretical results agree well with experimental data Science 289, 1730 2000.

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【期刊论文】Vibrational spectra of doublewall carbon nanotubes
张胜利， Minggang Xia， ， Shengli Zhang， Erhu Zhang， Shumin Zhao， and Xianjun Zuo
PHYSICAL REVIEW B 69, 233407 (2004)，0001，（）：
1年11月30日
The vibrational spectra of doublewall carbon nanotubes (DWNTs) are studied theoretically within a continuum model in this paper. The phonon dispersion relations are derived numerically and analytically, and two radial breathing modes (RBMs) are calculated analytically, which agree with experimental data [Phys. Rev. B 66, 075416 (2002)]. By comparison of the RBM frequencies with the ones of isolated singlewall carbon nanotubes, we find that there is a systematic upward shift for DWNTs RBM frequencies due to the interlayer van der Waals interactions. In case of counterphase modes, the upshift magnitude of RBM frequencies increases with an increase of the outerlayer radius R. However, for inphase RBMs, the upshift magnitude of RBM frequencies may increase or decrease with an increase of R. We then discuss four acoustic phonons and find that there is no transverse acoustic phonon in DWNTs. Finally, the general phonon dispersion relations are calculated.

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【期刊论文】Optimum diameter of singlewalled carbon nanotubes in carbon nanotube ropes
张胜利， Shengli Zhang， ， Shumin Zhao， Minggang Xia， Erhu Zhang， Xianjun Zuo， and Tao Xu
PHYSICAL REVIEW B 70, 035403 (2004)，0001，（）：
1年11月30日
In this paper, the optimum diameter of stable singlewalled carbon nanotubes (SWNT's) in a rope is calculated theoretically using its conformation energy, which consists of curvature elastic energy and intertube van derWaals energy. An equlibrium shape equation for single layer fullerenes is derived by means of variation of the conformation energy. For straight SWNT's in an SWNT rope, the solution to the equlibrium shape equation gives the optimum diameter to be 1.36nm for stable SWNT's. This agrees well with the experimental observation [Nature 388, 756 (1997); Science 273, 483 (1998)].

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张胜利， Minggang Xia， ， Shengli Zhang， Xianjun Zuo， Erhu Zhang， Shumin Zhao， Jian Li， Lei Zhang， Yachao Liu， and Run Liang
PHYSICAL REVIEW B 70, 205428 (2004)，0001，（）：
1年11月30日
The chiralities of doublewalled carbon nanotubes (DWNTs) are assigned using two radial breathing modes (RBMs) of the DWNTs unambiguously, which are calculated theoretically in this paper by use of the modified continuum model. According to experimental data, we assign the specific chiralities to the inner and outer layers by use of two RBM frequencies of the DWNTs, and then calculate the diameters of the two layers and even the interlayer distance. The interlayer spacing between two layers b is found to be not a constant, but is in the range 0.321 to 0.402nm, which agrees well with experimental data [W. Ren et al., Chem. Phys. Lett. 359, 196 (2002); R. Pfeiffer et al., Phys. Rev. Lett. 90, 225501 (2003)] and calculated result [R. Saito et al., Chem. Phys. Lett. 348, 187 (2001)]. The values of both the upshift and downshift of DWNTs' RBM frequencies are not constant, but vary with the interlayer spacings b and their chiralities. By calculating and comparing the case of the chiralities being taken into account with that of the chiralities being neglected in the van der Waals forces, we find that the effect of chiralities should not be neglected in order to assign the chiralities of DWNTs though the difference between the two RBM frequencies caused by the different chiralities of inner and outer tubes is small. In addition, it is found that there can be several values of B1 B2 corresponding to the same value of B2 B1, arising because one inner (outer) tube can be paired with several outer (inner) tubes, which can be explained by two RBM frequencies of the DWNTs.

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【期刊论文】Magnetosubbands of semiconductor quantum wires with Rashba and Dresselhaus spinorbit coupling
张胜利， Shengli Zhang， Run Liang， Erhu Zhang， Lei Zhang， and Yachao Liu
PHYSICAL REVIEW B 73, 155316 (2006)，0001，（）：
1年11月30日
The energy band structure of quantum wires with both Rashba and Dresselhaus spinorbit couplings in a magnetic field is studied theoretically. We find that the magnetic field strongly affects the subband structure of the wire. With both couplings we obtain a beating pattern in the magnetoresistance. Compared with the quantum wire with only Rashba spinorbit coupling, the beating pattern can be suppressed even if the coupling strengths are large. This is due to the interplay of the two spinorbit couplings. The disappearing threshold of the nodes depends on both coupling strengths. When the coupling strengths change, the number of nodes of the beating pattern also varies.

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张胜利， Shengli Zhang， ， Bambi Hu， and Hong Zhang
PHYSICAL REVIEW E 67, 016214 (2003) ，0001，（）：
1年11月30日
In this paper, we investigate the motion of spiral waves in the complex GinzburgLandau equation CGLE analytically and numerically. We find that the tip of the spiral wave drifts primarily in the direction of the electric field and there is a smaller component of the drift that is perpendicular to the field when a uniform field is applied to the system. The velocity of the tip is uniform and its component along the electric field is equal to the strength of the field. When the CGLE system is driven by white noise, a diffusion law for the vortex core of the spiral wave is derived at long time explicitly. The diffusion constant is found to be D T/C2, in which T is the noise strength and C is the core asymptotic factor of the spiral wave. When the external force is a simple oscillation we find that the tip of the spiral wave drifts if the frequency of the external force is the same as that of the system. Our analytical results are verified using numerical simulations.

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