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Firdaus H, Watanabe T, Hori M, Moraru D, Takahashi Y, Fujiwara A, Ono Y. Electron aspirator using electron-electron scattering in nanoscale silicon. Nat Commun 2018; 9:4813. [PMID: 30559340 PMCID: PMC6297221 DOI: 10.1038/s41467-018-07278-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 10/26/2018] [Indexed: 11/10/2022] Open
Abstract
Current enhancement without increasing the input power is a critical issue to be pursued for electronic circuits. However, drivability of metal-oxide-semiconductor (MOS) transistors is limited by the source-injection current, and electrons that have passed through the source unavoidably waste their momentum to the phonon bath. Here, we propose the Si electron-aspirator, a nanometer-scaled MOS device with a T-shaped branch, to go beyond this limit. The device utilizes the hydrodynamic nature of electrons due to the electron-electron scattering, by which the injected hot electrons transfer their momentum to cold electrons before they relax with the phonon bath. This momentum transfer induces an electron flow from the grounded side terminal without additional power sources. The operation is demonstrated by observing the output-current enhancement by a factor of about 3 at 8 K, which reveals that the electron-electron scattering can govern the electron transport in nanometer-scaled MOS devices, and increase their effective drivability.
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Affiliation(s)
- Himma Firdaus
- Graduate School of Science and Technology, Shizuoka University, 3-5-1, Johoku, Naka-ku, Hamamatsu, 432-8011, Japan
| | - Tokinobu Watanabe
- Research Institute of Electronics, Shizuoka University, 3-5-1, Johoku, Naka-ku, Hamamatsu, 432-8011, Japan
| | - Masahiro Hori
- Graduate School of Science and Technology, Shizuoka University, 3-5-1, Johoku, Naka-ku, Hamamatsu, 432-8011, Japan.,Research Institute of Electronics, Shizuoka University, 3-5-1, Johoku, Naka-ku, Hamamatsu, 432-8011, Japan
| | - Daniel Moraru
- Graduate School of Science and Technology, Shizuoka University, 3-5-1, Johoku, Naka-ku, Hamamatsu, 432-8011, Japan.,Research Institute of Electronics, Shizuoka University, 3-5-1, Johoku, Naka-ku, Hamamatsu, 432-8011, Japan
| | - Yasuo Takahashi
- Graduate School of Information Science and Technology, Hokkaido University, Sapporo, 060-0814, Japan
| | - Akira Fujiwara
- NTT Basic Research Laboratories, 3-1 Morinosato Wakamiya, Atsugi, 243-0198, Japan
| | - Yukinori Ono
- Graduate School of Science and Technology, Shizuoka University, 3-5-1, Johoku, Naka-ku, Hamamatsu, 432-8011, Japan. .,Research Institute of Electronics, Shizuoka University, 3-5-1, Johoku, Naka-ku, Hamamatsu, 432-8011, Japan.
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Takashina K, Ono Y, Fujiwara A, Takahashi Y, Hirayama Y. Valley polarization in Si(100) at zero magnetic field. PHYSICAL REVIEW LETTERS 2006; 96:236801. [PMID: 16803388 DOI: 10.1103/physrevlett.96.236801] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2005] [Indexed: 05/10/2023]
Abstract
The valley splitting, which lifts the degeneracy of the lowest two valley states in a SiO(2)/Si(100)/SiO(2) quantum well, is examined through transport measurements. We demonstrate that the valley splitting can be observed directly as a step in the conductance defining a boundary between valley-unpolarized and -polarized regions. This persists to well above liquid helium temperature and shows no dependence on magnetic field, indicating that single-particle valley splitting and valley polarization exist in (100) silicon even at zero magnetic field.
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Affiliation(s)
- K Takashina
- NTT Basic Research Laboratories, NTT Corporation, Atsugi-shi, Kanagawa 243-0198, Japan
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Davies AG, Barnes CH, Zolleis KR, Nicholls JT, Simmons MY, Ritchie DA. Hybridization of single- and double-layer behavior in a double-quantum-well structure. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:R17331-R17334. [PMID: 9985950 DOI: 10.1103/physrevb.54.r17331] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Ihn T, Carmona H, Main PC, Eaves L, Henini M. Magnetic-field-induced resonant tunneling in parallel two-dimensional systems. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:R2315-R2318. [PMID: 9986166 DOI: 10.1103/physrevb.54.r2315] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Slutzky M, Entin-Wohlman O, Berk Y, Palevski A, Shtrikman H. Electron-electron scattering in coupled quantum wells. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:4065-4072. [PMID: 9983961 DOI: 10.1103/physrevb.53.4065] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Katayama Y, Tsui DC, Manoharan HC, Parihar S, Shayegan M. Charge transfer at double-layer to single-layer transition in double-quantum-well systems. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:14817-14824. [PMID: 9980820 DOI: 10.1103/physrevb.52.14817] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Lay TS, Ying X, Shayegan M. Layer-depopulation- and magnetic-field-induced resistance oscillations in a triple-layer electron system. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:R5511-R5514. [PMID: 9981817 DOI: 10.1103/physrevb.52.r5511] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Berk Y, Kamenev A, Palevski A, Pfeiffer LN, West KW. Resonance magnetoresistance of coupled quantum wells. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:2604-2607. [PMID: 9979023 DOI: 10.1103/physrevb.51.2604] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Berk Y, Kamenev A, Palevski A, Pfeiffer LN, West KW. Resonant transport in coupled quantum wells: A probe for scattering mechanisms. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:15420-15423. [PMID: 9975900 DOI: 10.1103/physrevb.50.15420] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Kurobe A, Castleton IM, Linfield EH, Grimshaw MP, Brown KM, Ritchie DA, Pepper M, Jones GA. Resonant resistance enhancement in double-quantum-well GaAs-AlxGa1-xAs heterostructures. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:8024-8027. [PMID: 9974801 DOI: 10.1103/physrevb.50.8024] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Kurobe A, Castleton IM, Linfield EH, Grimshaw MP, Brown KM, Ritchie DA, Pepper M, Jones GA. Wave functions and Fermi surfaces of strongly coupled two-dimensional electron gases investigated by in-plane magnetoresistance. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:4889-4892. [PMID: 9976804 DOI: 10.1103/physrevb.50.4889] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Ohno Y, Sakaki H, Tsuchiya M. Quenching of resonance-induced resistance in double quantum wells in the presence of in-plane magnetic fields. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:11492-11495. [PMID: 10010013 DOI: 10.1103/physrevb.49.11492] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Vasko FT, Vasilopoulos P. Magneto-oscillatory phenomena in double quantum wells with asymmetric scattering. I. Density of states and thermodynamic quantities. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:18088-18094. [PMID: 10008447 DOI: 10.1103/physrevb.48.18088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Faist J, Capasso F, Hutchinson AL, Pfeiffer L, West KW. Suppression of optical absorption by electric-field-induced quantum interference in coupled potential wells. PHYSICAL REVIEW LETTERS 1993; 71:3573-3576. [PMID: 10055011 DOI: 10.1103/physrevlett.71.3573] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Stockman MI, Muratov LS, George TF. Theory of light-induced drift of electrons in coupled quantum wells. PHYSICAL REVIEW. B, CONDENSED MATTER 1992; 46:9595-9602. [PMID: 10002771 DOI: 10.1103/physrevb.46.9595] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Stockman MI, Muratov LS, Pandey LN, George TF. Kinetics of intersubband optical excitation and photoinduced electron transfer in an asymmetric double quantum well. PHYSICAL REVIEW. B, CONDENSED MATTER 1992; 45:8550-8561. [PMID: 10000693 DOI: 10.1103/physrevb.45.8550] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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