Thermal transport through a one-dimensional quantum spin-1/2 chain heterostructure: The role of three-site spin interaction

2012 ◽  
Vol 86 (1) ◽  
Author(s):  
H. Wu ◽  
Y. Wang ◽  
W. -J. Gong ◽  
Y. Han ◽  
X. -H. Chen
Keyword(s):  
Thermal Transport ◽  
Quantum Spin ◽  
Spin Interaction ◽  
One Dimensional

One-dimensional quantum spin heterojunction as a thermal switch

2016 ◽  
Vol 30 (07) ◽  
pp. 1650027
Author(s):  
Chuan-Jing Yang ◽  
Li-Hui Jin ◽  
Wei-Jiang Gong
Keyword(s):  
Thermal Transport ◽  
Structural Parameters ◽  
Finite Size ◽  
Quantum Spin ◽  
Spin Interaction ◽  
Heat Current ◽  
Spin Hamiltonian ◽  
One Dimensional ◽  
Thermal Switch ◽  
Wigner Transformation

We study the thermal transport through a quantum spin-[Formula: see text] heterojunction, which consists of a finite-size chain with two-site anisotropic XY interaction and three-site XZX+YZY interaction coupled at its ends to two semi-infinite isotropic XY chains. By performing the Jordan–Wigner transformation, the original spin Hamiltonian is mapped onto a fermionic Hamiltonian. Then, the fermionic structure is discussed, and the heat current as a function of structural parameters is evaluated. It is found that the magnetic fields applied at respective chains play different roles in adjusting the heat current in this heterojunction. Moreover, the interplay between the anisotropy of the XY interaction and the three-site spin interaction assists to further control the thermal transport. In view of the numerical results, we propose this heterojunction to be an alternate candidate for manipulating the heat current in one-dimensional (1D) systems.

Adiabatic large polarons in anisotropic molecular crystals

2011 ◽  
Vol 35 (1) ◽  
pp. 15-27
Author(s):  
Zoran Ivić ◽  
Željko Pržulj
Keyword(s):  
Energy Transfer ◽  
Effective Mass ◽  
Molecular Crystals ◽  
Single Chain ◽  
Proper Understanding ◽  
One Dimensional ◽  
Interchain Coupling ◽  
Large Polaron ◽  
The One

Adiabatic large polarons in anisotropic molecular crystals We study the large polaron whose motion is confined to a single chain in a system composed of the collection of parallel molecular chains embedded in threedimensional lattice. It is found that the interchain coupling has a significant impact on the large polaron characteristics. In particular, its radius is quite larger while its effective mass is considerably lighter than that estimated within the one-dimensional models. We believe that our findings should be taken into account for the proper understanding of the possible role of large polarons in the charge and energy transfer in quasi-one-dimensional substances.

Role of the Dimerized Gap Due to Anion Ordering in the Quantized Hall Phases of Quasi-One Dimensional Organic Conductors

2007 ◽  
Vol 142 (3-4) ◽  
pp. 477-480
Author(s):  
Noriaki Matsunaga ◽  
Katutosi Hino ◽  
Takamichi Ohta ◽  
Katsumi Yamashita ◽  
Kazushige Nomura ◽  
...  
Keyword(s):  
Organic Conductors ◽  
One Dimensional

High-field ESR in one-dimensional quantum spin systems

2000 ◽  
Vol 284-288 ◽  
pp. 1625-1626 ◽  
Author(s):  
Y Ajiro ◽  
T Asano ◽  
Y Inagaki ◽  
J.P Boucher ◽  
S Luther ◽  
...  
Keyword(s):  
High Field ◽  
Quantum Spin ◽  
Spin Systems ◽  
Quantum Spin Systems ◽  
One Dimensional ◽  
High Field Esr

Role of One-Dimensional Ribbonlike Nanostructures in Dye-Sensitized TiO2-Based Solar Cells

2011 ◽  
Vol 115 (14) ◽  
pp. 7104-7113 ◽  
Author(s):  
Jiazang Chen ◽  
Bo Li ◽  
Jianfeng Zheng ◽  
Suping Jia ◽  
Jianghong Zhao ◽  
...  
Keyword(s):  
Solar Cells ◽  
One Dimensional ◽  
Dye Sensitized

Grain-Size-Dependent Thermal Transport Properties in Nanocrystalline Yttria-Stabilized Zirconia

2001 ◽  
Vol 703 ◽  
Author(s):  
Ho-Soon Yang ◽  
J.A. Eastman ◽  
L.J. Thompson ◽  
G.-R. Bai
Keyword(s):  
Grain Boundaries ◽  
Thermal Transport ◽  
Chemical Vapor ◽  
Yttria Stabilized Zirconia ◽  
Organic Chemical ◽  
Stabilized Zirconia ◽  
Size Dependent ◽  
Metal Organic ◽  
Organic Chemical Vapor Deposition

ABSTRACTUnderstanding the role of grain boundaries in controlling heat flow is critical to the success of many envisioned applications of nanocrystalline materials. This study focuses on the effect of grain boundaries on thermal transport behavior in nanocrystalline yttria-stabilized zirconia (YSZ) coatings prepared by metal-organic chemical vapor deposition.

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