Spin Pump on a Finite Antiferromagnetic Chain through Bulk States

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概要

• 論文の詳細を見る

• We studied the possibility of the spin pump in an $S=1/2$ antiferromagnetic chain. The spin chain is mapped into a fermion system and bosonization is utilized to transform the equation of motion to a sine-Gordon equation. The solutions of the sine-Gordon equation on a finite chain with different boundary conditions are analyzed. Among numerous solutions, the static soliton is compatible with the original physical system. By varying adiabatically an angle $\varphi$ in the phase space composed of applied electric and magnetic fields, the spin states change between the Néel state and dimer state and a quantized spin $S=1$ is transported by the bulk state from one end of the system to the other.

• Physical Society of Japanの論文
• 2010-06-15

著者

• Hu Chong

  Department Of Physics National Taiwan University

• Nan-Hong Kuo

  Department of Physics, National Taiwan University, Taipei, Taiwan, R.O.C.

• Chong Der

  Department of Physics, National Taiwan University, Taipei, Taiwan, R.O.C.

• Sujit Sarkar

  PoornaPrajna Institute of Scientific Research, 4 Sadashivanagar, Bangalore-5600 80, India

• Kuo Nan-Hong

  Department of Physics, National Taiwan University, Taipei, Taiwan, R.O.C.

• Sarkar Sujit

  PoornaPrajna Institute of Scientific Research, 4 Sadashivanagar, Bangalore-5600 80, India

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• The Curie Temperature of the Double-Exchange Interaction Systems
• The Magnetization and Curie Temperature of the Double Exchange Interaction Systems : Condensed Matter: Electronic Properties, etc.
• Constant-Voltage Steps in Josephson Tunneling
• The Spin Waves in the Double Exchange Interaction Systems : Condensed Matter: Electronic Properties, etc.
• The Electrical Resistivity of the Double Exchange Interaction Systems : Condensed Matter: Electronic Properties, etc.
• Spin Pump on a Finite Antiferromagnetic Chain through Bulk States

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