Disorder-enhanced nuclear spin relaxationat Landau level filling factor one

doi:10.1088/1674-1056/24/6/067302

中国物理B ›› 2015, Vol. 24 ›› Issue (6): 67302-067302.doi: 10.1088/1674-1056/24/6/067302

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇下一篇

Disorder-enhanced nuclear spin relaxationat Landau level filling factor one

关童^a, Benedikt Friess^b, 李永庆^a, 颜世申^c, Vladimir Umansky^d, Klaus von Klitzing^b, Jurgen H. Smet^b

a Beijing National Laboratory for Condensed Matter Physics, Institute of Physics,Chinese Academy of Sciences, Beijing 100190, China;
b Max Planck Institute for Solid State Research, Heisenbergstraß1, D-70569, Stuttgart, Germany;
c School of Physics, Shandong University, Jinan 250100, China;
d Weizmann Institute of Science, Rehovot 76100, Israel

收稿日期:2015-03-17 修回日期:2015-03-25 出版日期:2015-06-05 发布日期:2015-06-05
基金资助:
Project supported by the National Basic Research Program of China (Grant Nos. 2012CB921703 and 2015CB921102), the National Natural Science Foundation of China (Grant Nos. 91121003, 11374337, and 61425015), the Chinese Academy of Sciences, the BMBF, and the German-Israel Foundation.

Disorder-enhanced nuclear spin relaxation at Landau level filling factor one

Guan Tong (关童)^a, Benedikt Friess^b, Li Yong-Qing (李永庆)^a, Yan Shi-Shen (颜世申)^c, Vladimir Umansky^d, Klaus von Klitzing^b, Jurgen H. Smet^b

a Beijing National Laboratory for Condensed Matter Physics, Institute of Physics,Chinese Academy of Sciences, Beijing 100190, China;
b Max Planck Institute for Solid State Research, Heisenbergstraß1, D-70569, Stuttgart, Germany;
c School of Physics, Shandong University, Jinan 250100, China;
d Weizmann Institute of Science, Rehovot 76100, Israel

Received:2015-03-17 Revised:2015-03-25 Online:2015-06-05 Published:2015-06-05
Contact: Li Yong-Qing, Jurgen H. Smet E-mail:yqli@iphy.ac.cn;j.smet@fkf.mpg.de
About author:73.40.-c; 73.20.-r; 73.63.Hs
Supported by:
Project supported by the National Basic Research Program of China (Grant Nos. 2012CB921703 and 2015CB921102), the National Natural Science Foundation of China (Grant Nos. 91121003, 11374337, and 61425015), the Chinese Academy of Sciences, the BMBF, and the German-Israel Foundation.

摘要/Abstract

摘要：

The nuclear spin relaxation rate (1/T₁) is measured for GaAs two-dimensional (2D) electron systems in the quantum Hall regime with an all-electrical technique for agitating and probing the nuclear spins. A “tilted plateau” feature is observed near the Landau level filling factor ν=1 in 1/T₁ versus ν. Both the width and magnitude of the plateau increase with decreasing electron density. At low temperatures, 1/T₁ exhibits an Arrhenius temperature dependence within the tilted plateau regime. The extracted energy gaps are up to two orders of magnitude smaller than the corresponding charge transport gaps. These results point to a nontrivial mechanism for the disorder-enhanced nuclear spin relaxation, in which microscopic inhomogeneities play a key role for the low energy spin excitations related to skyrmions.

关键词: nuclear spin relaxation, Landau level filling factor one, skyrmions

Abstract:

Key words: nuclear spin relaxation, Landau level filling factor one, skyrmions

中图分类号: (Electronic transport in interface structures)

73.40.-c

73.20.-r (Electron states at surfaces and interfaces) 73.63.Hs (Quantum wells)

关童, Benedikt Friess, 李永庆, 颜世申, Vladimir Umansky, Klaus von Klitzing, Jurgen H. Smet. Disorder-enhanced nuclear spin relaxationat Landau level filling factor one[J]. 中国物理B, 2015, 24(6): 67302-067302.

Guan Tong (关童), Benedikt Friess, Li Yong-Qing (李永庆), Yan Shi-Shen (颜世申), Vladimir Umansky, Klaus von Klitzing, Jurgen H. Smet. Disorder-enhanced nuclear spin relaxation at Landau level filling factor one[J]. Chin. Phys. B, 2015, 24(6): 67302-067302.

参考文献 45

[1]	Li Y Q and Smet J H in 2008 Spin Physics in Semiconductors, ed. M. I. D'yaknov (Berlin: Springer-Verlag) pp. 347-388
[2]	Hirayama Y, Yusa G, Hashimoto K, Kumada N, Ota T and Muraki K 2009 Semicond. Sci. Technol. 24 023001
[3]	Berg A, Dobers M, Gerhardts R R and von Klitzing K 1990 Phys. Rev. Lett. 64 2563
[4]	Dixon D C, Wald K R, McEuen P L and Melloch M R 1997 Phys. Rev. B 56 4743
[5]	Kawamura M, Takahashi H, Sugihara K, Masubuchi S, Hamaya K and Machida T 2007 Appl. Phys. Lett. 90 022102
[6]	Tycko R, Barrett S E, Dabbagh G, Pfeiferer L N and West K W 1995 Science 268 1460
[7]	Smet J H, Deutschmann R A, Ertl F, Wegscheider W, Abstreiter G and von Klitzing K 2002 Nature 415 281
[8]	Hashimoto K, Muraki K, Saku T and Hirayama Y 2002 Phys. Rev. Lett. 88 176601
[9]	Zhang X C, Scott G D and Jiang H W 2007 Phys. Rev. Lett. 98 246802
[10]	Desrat W, Maude D K, Potemski M, Portal J C, Wasilewski Z R and Hill G 2002 Phys. Rev. Lett. 88 256807
[11]	Girvin S M 2000 Phys. Today 53 39
[12]	Gervais G, Stormer H L, Tsui D C, Kuhns P L, Moulton W G, Reyes A P, Pfeiffer L N, Baldwin K W and West K W 2005 Phys. Rev. Lett. 94 196803
[13]	Tracy L A, Eisenstein J P, Pfeiffer L N and West K W 2006 Phys. Rev. B 73 121306(R)
[14]	Bowers C R, Gusev G M, Jaroszynski J, Reno J L and Simmons J A 2010 Phys. Rev. B 81 073301
[15]	Skyrme T H R 1962 Nucl. Phys. 31 556
[16]	Sondhi S L, Karlshede A, Kivelson S A and Rezayi E H 1993 Phys. Rev. B 47 16419
[17]	Brey L, Fertig H A, Cote R and MacDonald A H 1995 Phys. Rev. Lett. 75 2562
[18]	Barrett S E, Dabbagh G, Pfeiffer L N, West K W and Tycko R 1995 Phys. Rev. Lett. 74 5112
[19]	Schmeller A, Eisenstein J P, Pfeiffer L N and West K W 1995 Phys. Rev. Lett. 75 4290
[20]	Aifer E H, Goldberg B B and Broido D A 1996 Phys. Rev. Lett. 76 680
[21]	Gallais Y, Yan J, Pinczuk A, Pfeiffer L N and West K W 2008 Phys. Rev. Lett. 100 086806
[22]	Zhu H, Sambandamurthy G, Chen Y P, Jiang P, Engel L W, Tsui D C, Pfeiffer L N and West K W 2010 Phys. Rev. Lett. 104 226801
[23]	Côté R C, MacDonald A H, Brey L, Fertig H A, Girvin S M and Stoof H T C 1997 Phys. Rev. Lett. 78 4825
[24]	Green A G, Kogan I I and Tsvelik A M 1996 Phys. Rev. B 54 16838
[25]	Timm C and Girvin S M 1998 Phys. Rev. B 58 10634
[26]	Green A G 2000 Phys. Rev. B 61 R16299(R)
[27]	Paredes B and Palacios J J 1999 Phys. Rev. B 60 15570
[28]	Sinova J, MacDonald A H and Girvin S M 2000 Phys. Rev. B 62 13579
[29]	Murthy G 2001 Phys. Rev. B 64 241309(R)
[30]	Rapsch S, Chalker J T and Lee D K K 2002 Phys. Rev. Lett. 88 036801
[31]	Makogon D, Alamir A and Smith C M 2010 Phys. Rev. B 81 045310
[32]	Antoniou D and MacDonald A H 1991 Phys. Rev. B 43 11686
[33]	Iordanskii S V, Meshkov S V and Vagner I D 1991 Phys. Rev. B 44 6554(R)
[34]	Li Y Q, Umansky V, von Klitzing K and Smet J H 2012 Phys. Rev. B 86 115421
[35]	Tracy L A, Eisenstein J P, Pfeiffer L N and West K W 2007 Phys. Rev. Lett. 98 086801
[36]	Li Y Q, Umansky V, von Klitzing K and Smet J H 2009 Phys. Rev. Lett. 102 046803
[37]	Smet J H, Deutschmann R A, Ertl F, Wegscheider W, Abstreiter G and von Klitzing K 2004 Phys. Rev. Lett. 92 086802
[38]	Nuebler J, Umansky V, Morf R, Heiblum M, von Klitzing K and Smet J H 2010 Phys. Rev. B 81 035316
[39]	Ilani S, Martin J, Teitelbaum E, Smet J H, Mahalu D, Umansky V and Yacoby A 2004 Nature 427 328
[40]	Khandelwal P, Dementyev A E, Kuzma N N, Barrett S E, Pfeiffer L N and West K W 2001 Phys. Rev. Lett. 86 5353
[41]	Melinte S, Freytag N, Horvatic M, Berthier C, Levy L P, Bayot V and Shayegan M 2001 Phys. Rev. B 64 085327
[42]	Zhitomirsky V, Chughtai R, Nicholas R J and Henini M 2004 Semicond. Sci. Technol. 19 252
[43]	Bayot V, Grivei E, Melinte S, Santos M B and Shayegan M 1996 Phys. Rev. Lett. 76 4584
[44]	Bayot V, Grivei E, Beuken J M, Melinte S, Santos M B and Shayegan M 1997 Phys. Rev. Lett. 79 1718
[45]	Pan W, Reno J L, Li D and Brueck S R J 2011 Phys. Rev. Lett. 106 156806

Disorder-enhanced nuclear spin relaxationat Landau level filling factor one

Disorder-enhanced nuclear spin relaxation at Landau level filling factor one

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