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Volumn 81, Issue 24, 2010, Pages

Thermopower of two-dimensional electrons at filling factors ν=3/2 and 5/2

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EID: 77955693620     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.81.245319     Document Type: Article
Times cited : (30)

References (47)
  • 1
    • 77956310485 scopus 로고    scopus 로고
    • For reviews of transport and optical studies of 2D electron systems in the quantum Hall regime, see the chapters by, in edited by S. Das Sarma and A. Pinczuk (Wiley, New York
    • For reviews of transport and optical studies of 2D electron systems in the quantum Hall regime, see the chapters by A. Pinczuk, M. Shayegan, H. L. Stormer, and D. C. Tsui, in Perspectives in Quantum Hall Effects, edited by, S. Das Sarma, and, A. Pinczuk, (Wiley, New York, 1997).
    • (1997) Perspectives in Quantum Hall Effects
    • Pinczuk, A.1    Shayegan, M.2    Stormer, H.L.3    Tsui, D.C.4
  • 2
    • 0003568127 scopus 로고
    • For an early review of 2DES thermoelectric phenomena, see in edited by P. T. Landsberg (Elsevier, Amsterdam
    • For an early review of 2DES thermoelectric phenomena, see B. L. Gallagher and P. N. Butcher in Handbook on Semiconductors, edited by, P. T. Landsberg, (Elsevier, Amsterdam, 1992), Vol. 1.
    • (1992) Handbook on Semiconductors , vol.1
    • Gallagher, B.L.1    Butcher, P.N.2
  • 20
    • 1842460762 scopus 로고
    • 10.1016/0550-3213(91)90407-O
    • G. Moore and N. Read, Nucl. Phys. B 360, 362 (1991). 10.1016/0550- 3213(91)90407-O
    • (1991) Nucl. Phys. B , vol.360 , pp. 362
    • Moore, G.1    Read, N.2
  • 21
    • 65349178949 scopus 로고    scopus 로고
    • 10.1103/PhysRevB.79.115317
    • K. Yang and B. I. Halperin, Phys. Rev. B 79, 115317 (2009). 10.1103/PhysRevB.79.115317
    • (2009) Phys. Rev. B , vol.79 , pp. 115317
    • Yang, K.1    Halperin, B.I.2
  • 22
    • 36049058016 scopus 로고
    • 10.1103/PhysRev.181.1336
    • M. Cutler and N. F. Mott, Phys. Rev. 181, 1336 (1969). 10.1103/PhysRev.181.1336
    • (1969) Phys. Rev. , vol.181 , pp. 1336
    • Cutler, M.1    Mott, N.F.2
  • 23
    • 77956337976 scopus 로고    scopus 로고
    • We use GE/IMI 7031 varnish to attach a Vishay WK-06-031CF-350 strain gauge to our sample
    • We use GE/IMI 7031 varnish to attach a Vishay WK-06-031CF-350 strain gauge to our sample.
  • 24
    • 35949013262 scopus 로고
    • 10.1103/PhysRevB.36.6551
    • T. Klitsner and R. O. Pohl, Phys. Rev. B 36, 6551 (1987). 10.1103/PhysRevB.36.6551
    • (1987) Phys. Rev. B , vol.36 , pp. 6551
    • Klitsner, T.1    Pohl, R.O.2
  • 25
    • 0022061778 scopus 로고
    • 10.1088/0022-3735/18/5/002
    • K. D. D. Rathnayaka, J. Phys. E 18, 380 (1985). 10.1088/0022-3735/18/5/ 002
    • (1985) J. Phys. e , vol.18 , pp. 380
    • Rathnayaka, K.D.D.1
  • 26
    • 77956336986 scopus 로고    scopus 로고
    • Q was always kept small compared to the cooling power of our dilution refrigerator
    • Q was always kept small compared to the cooling power of our dilution refrigerator.
  • 28
    • 77956313324 scopus 로고    scopus 로고
    • The value of vph used here, 3300 m/s, is close to the Debye velocity determined from the specific heat
    • The value of v p h used here, 3300 m/s, is close to the Debye velocity determined from the specific heat.
  • 30
    • 77956308356 scopus 로고    scopus 로고
    • An EM dc nanovoltmeter model N31 is used for all thermoelectric measurements performed in this experiment
    • An EM dc nanovoltmeter model N31 is used for all thermoelectric measurements performed in this experiment.
  • 32
    • 46049109595 scopus 로고    scopus 로고
    • 10.1103/PhysRevB.77.235437
    • E. H. Hwang and S. Das Sarma, Phys. Rev. B 77, 235437 (2008). 10.1103/PhysRevB.77.235437
    • (2008) Phys. Rev. B , vol.77 , pp. 235437
    • Hwang, E.H.1    Das Sarma, S.2
  • 33
    • 77956324203 scopus 로고    scopus 로고
    • After illumination the 2D density in our sample cannot be modified by gating. This is a common occurrence in samples of this type which are intentionally overdoped
    • After illumination the 2D density in our sample cannot be modified by gating. This is a common occurrence in samples of this type which are intentionally overdoped.
  • 35
    • 0001013106 scopus 로고    scopus 로고
    • 10.1103/PhysRevLett.77.1817
    • D. V. Khveshchenko, Phys. Rev. Lett. 77, 1817 (1996). 10.1103/PhysRevLett.77.1817
    • (1996) Phys. Rev. Lett. , vol.77 , pp. 1817
    • Khveshchenko, D.V.1
  • 36
    • 0037104335 scopus 로고    scopus 로고
    • A slightly higher coefficient of √B, 0.089, is obtained if the exact diagonalization results of, 10.1103/PhysRevB.66.075408are used to compute the CF mass from the energy gap of the ν=1/3 FQHE state.
    • A slightly higher coefficient of √ B, 0.089, is obtained if the exact diagonalization results of R. H. Morf, N. d'Ambrumenil, and S. Das Sarma, Phys. Rev. B 66, 075408 (2002) 10.1103/PhysRevB.66.075408
    • (2002) Phys. Rev. B , vol.66 , pp. 075408
    • Morf, R.H.1    D'Ambrumenil, N.2    Das Sarma, S.3
  • 37
    • 0001035725 scopus 로고    scopus 로고
    • 10.1103/PhysRevLett.80.4237
    • K. Park and J. K. Jain, Phys. Rev. Lett. 80, 4237 (1998). 10.1103/PhysRevLett.80.4237
    • (1998) Phys. Rev. Lett. , vol.80 , pp. 4237
    • Park, K.1    Jain, J.K.2
  • 43
  • 44
    • 65549121218 scopus 로고    scopus 로고
    • 10.1103/PhysRevLett.102.176807
    • N. R. Cooper and A. Stern, Phys. Rev. Lett. 102, 176807 (2009). 10.1103/PhysRevLett.102.176807
    • (2009) Phys. Rev. Lett. , vol.102 , pp. 176807
    • Cooper, N.R.1    Stern, A.2
  • 45
    • 77956301041 scopus 로고    scopus 로고
    • We specifically mention the In-Sn contacts and the manganin wires because they are in good thermal contact with the 2DES and have short nuclear-spin-lattice relaxation times, T1. The spin 3/2 Ga and As nuclei in the sample also present a nuclear heat capacity and may be involved as well. Presumably, however, only those Ga and As nuclei in the quantum well containing the 2DES would have short enough T1 times to be relevant. There are far fewer such Ga and As nuclei than there are spin 9/2 In nuclei in the ohmic contacts
    • We specifically mention the In-Sn contacts and the manganin wires because they are in good thermal contact with the 2DES and have short nuclear-spin-lattice relaxation times, T 1. The spin 3/2 Ga and As nuclei in the sample also present a nuclear heat capacity and may be involved as well. Presumably, however, only those Ga and As nuclei in the quantum well containing the 2DES would have short enough T 1 times to be relevant. There are far fewer such Ga and As nuclei than there are spin 9/2 In nuclei in the ohmic contacts.
  • 47
    • 84895401632 scopus 로고    scopus 로고
    • see also 3rd ed., edited by Frank Pobell (Springer-Verlag, Heidelberg
    • see also Matter and Methods at Low Temperatures, 3rd ed., edited by, Frank Pobell, (Springer-Verlag, Heidelberg, 2007).
    • (2007) Matter and Methods at Low Temperatures


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.