S. Tarucha, M. Stopa, S. Sasaki, and K. Ono
- Published in print:
- 2006
- Published Online:
- September 2007
- ISBN:
- 9780198568216
- eISBN:
- 9780191718212
- Item type:
- chapter
- Publisher:
- Oxford University Press
- DOI:
- 10.1093/acprof:oso/9780198568216.003.0003
- Subject:
- Physics, Condensed Matter Physics / Materials
Probing and manipulating spin effects in quantum dots are described in this chapter. Electronic configuration in quantum dots is tunable with various parameters such as number of electrons, magnetic ...
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Probing and manipulating spin effects in quantum dots are described in this chapter. Electronic configuration in quantum dots is tunable with various parameters such as number of electrons, magnetic field, and inter-dot coupling. This is particularly true for the spin states, and the related spin effects manifest themselves in the electronic properties. Singlet-triplet and doublet-doublet crossings in single dots and exchange-coupled two electron states in double dots are described as the typical examples. Special emphasis is placed on the exchange coupling in the scheme of quantum computing. Then long spin relaxation in quantum dots is referred to state that spin is a robust quantum number in quantum dots. This allow for observation of novel phenomena including Pauli spin blockade and the Kondo effect, which are major topics described here.Less
Probing and manipulating spin effects in quantum dots are described in this chapter. Electronic configuration in quantum dots is tunable with various parameters such as number of electrons, magnetic field, and inter-dot coupling. This is particularly true for the spin states, and the related spin effects manifest themselves in the electronic properties. Singlet-triplet and doublet-doublet crossings in single dots and exchange-coupled two electron states in double dots are described as the typical examples. Special emphasis is placed on the exchange coupling in the scheme of quantum computing. Then long spin relaxation in quantum dots is referred to state that spin is a robust quantum number in quantum dots. This allow for observation of novel phenomena including Pauli spin blockade and the Kondo effect, which are major topics described here.
Thomas Ihn
- Published in print:
- 2009
- Published Online:
- February 2010
- ISBN:
- 9780199534425
- eISBN:
- 9780191715297
- Item type:
- chapter
- Publisher:
- Oxford University Press
- DOI:
- 10.1093/acprof:oso/9780199534425.003.0019
- Subject:
- Physics, Condensed Matter Physics / Materials
Coupled quantum dot systems exhibit the physics of artificial molecules with tunable properties. This chapter discusses the electrostatics of electrons in coupled quantum dots and the resulting ...
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Coupled quantum dot systems exhibit the physics of artificial molecules with tunable properties. This chapter discusses the electrostatics of electrons in coupled quantum dots and the resulting charge stability diagram, the effects of finite tunneling coupling, and spin physics including hyperfine coupling. Related transport phenomena are discussed including the spin-blockade effect.Less
Coupled quantum dot systems exhibit the physics of artificial molecules with tunable properties. This chapter discusses the electrostatics of electrons in coupled quantum dots and the resulting charge stability diagram, the effects of finite tunneling coupling, and spin physics including hyperfine coupling. Related transport phenomena are discussed including the spin-blockade effect.
