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利用成本低廉的液相外延技术, 成功制备了具有金属-绝缘体-半导体结构的HgCdTe场效应管器件. 在该器件中, 观察到清晰的Shubnikov-de Hass振荡和量子霍尔平台, 证明样品具有较高的质量. 测量零场附近的磁阻曲线, 在HgCdTe-基器件中观察到反弱局域效应, 表明样品中存在较强的自旋-轨道耦合作用. 利用Iordanskii-Lyanda-Pikus理论, 很好地拟合了反弱局域曲线. 由拟合得到的自旋分裂能随电子浓度的增大而增大, 最大达到9.06 meV. 根据自旋分裂能得到的自旋-轨道耦合系数同样随电子浓度的增大而增大, 与沟道较宽的量子阱中所得到的结果相反.HgCdTe-based metal-insulator-semiconductor field effect transistor is fabricated by low-cost liquid phase epitaxy technique. Clear SdH oscillation in xx and quantum Hall plateaus of xy are observed, indicating that it is a good transistor. By measuring the magnetoresistance near zero field, we observe the weak antilocalization effect in our sample, suggesting a relatively strong spin-orbit coupling. The experimental data can be well fitted by the ILP theory. The fitting-obtained spin-splitting energy increases with increasing electron concentration, and the maximum reaches up to 9.06 meV. From the obtained spin-splitting energy, we calculate the spin-orbit coupling parameter and find that it increases with increasing electron concentration, which is contrary to the observations in a wide quantum well.
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Keywords:
- two-dimensional electron gas /
- HgCdTe /
- weak antilocalization effect
[1] Wolf S A, Awschalom D D, Buhrman R A, Daughton J M, Molnar S V, Roukes M L, Chtchelkanova A Y, Treger D M 2001 Science 294 1488
[2] Knap W, Skierbiszewski C, Zduniak A, Litwin-Staszewska E, Bertho D, Kobbi F, Robert J L, Pikus G E, Pikus F G, Iordanskii S V, Mosser V, Zekentes K, Lyanda-Geller Y B 1996 Phys. Rev. B 53 3912
[3] Qiu Z J, Gui Y S, Shu X Z, Dai N, Guo S L, Chu J H 2004 Acta Phys. Sin. 53 1977 (in Chinese) [仇志军, 桂永胜, 疏小舟, 戴宁, 郭少令, 褚君浩 2004 物理学报 53 1977]
[4] Qiu Z J, Gui Y S, Shu X Z, Dai N, Guo S L, Chu J H 2004 Acta Phys. Sin. 53 1186 (in Chinese) [仇志军, 桂永胜, 疏小舟, 戴宁, 郭少令, 褚君浩 2004 物理学报 53 1186]
[5] Koga T, Nitta J, Akazaki T, Takayanagi H 2002 Phys. Rev. Lett. 89 046801
[6] Kurdak C, Biyikli N, Ozgur U, Morkoc H, Litvinov 2006 Phys. Rev. B 74 113308
[7] Gao K H, Yu G L, Zhou Y M, Zhou W Z, Lin T, Chu J H, Dai N, Austing D G, Gu Y, Zhang Y G 2009 Phys. Rev. B 79 085310
[8] Hinz J, Buhmann H, Schafer M, Hock V, Becker C R, Molenkamp L W 2006 Semicond. Sci. Technol. 21 501
[9] Bassom N J, Nicholas R J 1992 Semicond. Sci. Technol. 7 810
[10] Belyaev A E, Beketov G V, Gorodnichii O P, Komirenko S M, Mukha L A 1993 Phys. Stat. Sol. (a) 135 253
[11] van der Pauw L J 1958 Philips. Tech. Rev. 20 220
[12] Shang L Y, Lin T, Zhou W Z, Li D L, Gao H L, Zeng Y P, Guo S L, Yu G L, Chu J H 2008 Acta Phys. Sin. 57 5232 (in Chinese) [商丽燕, 林铁, 周文政, 李东临, 高宏玲, 曾一平, 郭少令, 俞国林, 褚君浩 2008 物理学报 57 5232]
[13] Buegt M, Karavolas V C, Peeters F M, Singleton J, Nicholas R J, Herlach F, Harris J J, Van Hove M, Borghs G 1995 Phys. Rev. B 52 12218
[14] D’yakonov M I, Perel’ V I 1971 Sov. Phys. JETP 33 1053
[15] Kallaher R L, Heremans 2009 Phys. Rev. B 79, 075322
[16] Chen J, Qin H J, Yang F, Liu J, Guan T, Qu F M, Zhang G H, Shi J R, Xie X C, Yang C L, Wu K H, Li Y Q, Lu L, 2010 Phys. Rev. Lett. 105 176602
[17] Chen J, He X Y, Wu K H, Ji Z Q, Lu L, Shi J R, Smet J H, Li Y Q arXiv:1104.0986
[18] Zutic I, Fabian J, Das Sarma S 2004 Rev. Mod. Phys. 76 323
[19] Litvinenko K L, Murdin B N, Allam J, Pidgeon C R, Zhang T, Harris J J, Cohen L F, Eustace D A, McComb D W 2006 Phys. Rev. B 74, 075331
[20] Iordanskii S V, Lyanda-Geller Y B, Pikus G E 1994 JETP Lett. 60 206
[21] Minkov G M, Germanenko A V, Rut O E, Sherstobitov A A, Golub L E, Zvonkov B N, Willander M 2004 Phys. Rev. B 70 155323
[22] Pfeffer P, Zawadzki W 1999 Phys. Rev. B 59 R5321
[23] Gui Y S, Becker C R, Dai N, Liu J, Qiu Z J, Novik E G, Schafer M, Shu X Z, Chu J H, Buhmann H, Molenkamp L W 2004 Phys. Rev. B 70 115328
[24] Datta S, Das B 1990 Appl. Phys. Lett. 56 665
[25] Nitta J, Akazaki T, Takayanagi H, Enoki T 1997 Phys. Rev. Lett. 78 1335
[26] Guzenko V, Schapers T, Hardtdegen H 2007 Phys. Rev. B 76 165301
[27] Yu G L, Dai N, Chu J H, Poole P J, Studenikin S A 2008 Phys. Rev. B 78 35304
[28] Winkler R 2003 Spin-Orbit Coupling Effects in Two-Dimensional Electron and Hole Systems (Berlin: Springer-Verlag)
[29] Schapers T, Engels G, Lamge J, Klocke T, Hollfelder M, Luth H 1998 J. Appl. Phys. 83 4324
[30] Nitta J, Bergsten T, Kunihashi Y, Kohda M 2009 J. Appl. Phys. 105 122402
[31] Grundler D 2000 Phys. Rev. Lett. 84 6074
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[1] Wolf S A, Awschalom D D, Buhrman R A, Daughton J M, Molnar S V, Roukes M L, Chtchelkanova A Y, Treger D M 2001 Science 294 1488
[2] Knap W, Skierbiszewski C, Zduniak A, Litwin-Staszewska E, Bertho D, Kobbi F, Robert J L, Pikus G E, Pikus F G, Iordanskii S V, Mosser V, Zekentes K, Lyanda-Geller Y B 1996 Phys. Rev. B 53 3912
[3] Qiu Z J, Gui Y S, Shu X Z, Dai N, Guo S L, Chu J H 2004 Acta Phys. Sin. 53 1977 (in Chinese) [仇志军, 桂永胜, 疏小舟, 戴宁, 郭少令, 褚君浩 2004 物理学报 53 1977]
[4] Qiu Z J, Gui Y S, Shu X Z, Dai N, Guo S L, Chu J H 2004 Acta Phys. Sin. 53 1186 (in Chinese) [仇志军, 桂永胜, 疏小舟, 戴宁, 郭少令, 褚君浩 2004 物理学报 53 1186]
[5] Koga T, Nitta J, Akazaki T, Takayanagi H 2002 Phys. Rev. Lett. 89 046801
[6] Kurdak C, Biyikli N, Ozgur U, Morkoc H, Litvinov 2006 Phys. Rev. B 74 113308
[7] Gao K H, Yu G L, Zhou Y M, Zhou W Z, Lin T, Chu J H, Dai N, Austing D G, Gu Y, Zhang Y G 2009 Phys. Rev. B 79 085310
[8] Hinz J, Buhmann H, Schafer M, Hock V, Becker C R, Molenkamp L W 2006 Semicond. Sci. Technol. 21 501
[9] Bassom N J, Nicholas R J 1992 Semicond. Sci. Technol. 7 810
[10] Belyaev A E, Beketov G V, Gorodnichii O P, Komirenko S M, Mukha L A 1993 Phys. Stat. Sol. (a) 135 253
[11] van der Pauw L J 1958 Philips. Tech. Rev. 20 220
[12] Shang L Y, Lin T, Zhou W Z, Li D L, Gao H L, Zeng Y P, Guo S L, Yu G L, Chu J H 2008 Acta Phys. Sin. 57 5232 (in Chinese) [商丽燕, 林铁, 周文政, 李东临, 高宏玲, 曾一平, 郭少令, 俞国林, 褚君浩 2008 物理学报 57 5232]
[13] Buegt M, Karavolas V C, Peeters F M, Singleton J, Nicholas R J, Herlach F, Harris J J, Van Hove M, Borghs G 1995 Phys. Rev. B 52 12218
[14] D’yakonov M I, Perel’ V I 1971 Sov. Phys. JETP 33 1053
[15] Kallaher R L, Heremans 2009 Phys. Rev. B 79, 075322
[16] Chen J, Qin H J, Yang F, Liu J, Guan T, Qu F M, Zhang G H, Shi J R, Xie X C, Yang C L, Wu K H, Li Y Q, Lu L, 2010 Phys. Rev. Lett. 105 176602
[17] Chen J, He X Y, Wu K H, Ji Z Q, Lu L, Shi J R, Smet J H, Li Y Q arXiv:1104.0986
[18] Zutic I, Fabian J, Das Sarma S 2004 Rev. Mod. Phys. 76 323
[19] Litvinenko K L, Murdin B N, Allam J, Pidgeon C R, Zhang T, Harris J J, Cohen L F, Eustace D A, McComb D W 2006 Phys. Rev. B 74, 075331
[20] Iordanskii S V, Lyanda-Geller Y B, Pikus G E 1994 JETP Lett. 60 206
[21] Minkov G M, Germanenko A V, Rut O E, Sherstobitov A A, Golub L E, Zvonkov B N, Willander M 2004 Phys. Rev. B 70 155323
[22] Pfeffer P, Zawadzki W 1999 Phys. Rev. B 59 R5321
[23] Gui Y S, Becker C R, Dai N, Liu J, Qiu Z J, Novik E G, Schafer M, Shu X Z, Chu J H, Buhmann H, Molenkamp L W 2004 Phys. Rev. B 70 115328
[24] Datta S, Das B 1990 Appl. Phys. Lett. 56 665
[25] Nitta J, Akazaki T, Takayanagi H, Enoki T 1997 Phys. Rev. Lett. 78 1335
[26] Guzenko V, Schapers T, Hardtdegen H 2007 Phys. Rev. B 76 165301
[27] Yu G L, Dai N, Chu J H, Poole P J, Studenikin S A 2008 Phys. Rev. B 78 35304
[28] Winkler R 2003 Spin-Orbit Coupling Effects in Two-Dimensional Electron and Hole Systems (Berlin: Springer-Verlag)
[29] Schapers T, Engels G, Lamge J, Klocke T, Hollfelder M, Luth H 1998 J. Appl. Phys. 83 4324
[30] Nitta J, Bergsten T, Kunihashi Y, Kohda M 2009 J. Appl. Phys. 105 122402
[31] Grundler D 2000 Phys. Rev. Lett. 84 6074
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