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Coulomb staircase and total spin in quantum dots

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タイトル: Coulomb staircase and total spin in quantum dots
著者: Akera, Hiroshi 著作を一覧する
発行日: 1999年10月15日
出版者: American Physical Society
誌名: Physical Review B
巻: 60
号: 15
開始ページ: 10683
終了ページ: 10686
出版社 DOI: 10.1103/PhysRevB.60.10683
抄録: The dependence of the Coulomb staircase on the total spin of a quantum dot is calculated at a current step corresponding to a transition between the ground states of two successive electron numbers. The ratio of the step heights for the positive and negative bias is simply the ratio of the spin degeneracies of the ground states, when tunneling rates across the two barriers are strongly asymmetric. This can be used for determining experimentally the total spin and therefore identifying the spin blockade. The in-plane magnetic-field dependence of the Coulomb staircase is also calculated, and it is shown that the relative height of spin-split steps can be used alternatively to determine the total spin.
Rights: Copyright © 1999 American Physical Society
資料タイプ: article
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: 明楽 浩史


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