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Diluted magnetic semiconductor (Ga, Mn)Sb and its related hetero-structures have attracted much attention in recent years since they are predicted to have some novel properties, such as the quantum anomalous Hall effect etc. However, it is not easy to grow high-quality (Ga, Mn)Sb films due to their narrow growth window. In this article, a series of 10 nm thick (Ga, Mn)Sb films with different Mn contents from 0.016 to 0.039 have been grown by molecular-beam epitaxy at low temperaturs (～230 ℃). The films have high crystalline quality as confirmed by in situ reflection high-energy electron diffraction and ex situ atomic force microscopy, and no MnSb phase could be observed. Curie temperature up to 30 K has been obtained in one (Ga, Mn)Sb film after post-growth thermal annealing. The magneto-resistance and anomalous Hall effect of this film have also been investigated at different temperatures.
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Keywords:
- dilute magnetic semiconductor /
- magnetic properties /
- magneto-transport properties /
- molecular-beam epitaxy
[1] Wolf S A, Awschalom D D, Buhrman R A, Daughton J M, von Molnár S, Roukes M L, Chtchelkanova A Y, Treger D M 2001 Science 294 1488
[2] Žutić I, Fabian J, Das Sarma S 2004 Reviews of Modern Physics 76 323
[3] Dietl T, Ohno H 2014 Reviews of Modern Physics 86 187
[4] Wang H L, Chen L, Zhao J H 2013 Science China Physics, Mechanics and Astronomy 56 99
[5] He Z X, Zheng H Z, Huang X J, Wang H L, Zhao J H 2014 Chin. Phys. B 23 77801
[6] Woodbury D A, Blakemore J 1973 Physical Review B 8 3803
[7] Munekata H, Ohno H, von Molnár S, Segmäler A, Chang L L, Esaki L 1989 Physical Review Letters 63 1849
[8] Ohno H, Shen A, Matsukura F, Oiwa A, Endo A, Katsumoto S, Iye Y 1996 Applied Physics Letters 69 363
[9] Chen L, Yang X, Yang F H, Zhao J H, Misuraca J, Xiong P, von Molnár S 2011 Nano Letters 11 2584
[10] Linnarsson M, Janz E, Monemar B, Kleverman M, Thilderkvist A 1997 Physical Review B 55 6938
[11] Georgitse E I, Gutsulyak L M, Ivanov-Omskii I I, Masterov V F, Smirnov V A, Shtel’makh K F 1992 Soviet physics. Semiconductors 26 50
[12] Koshihara S, Oiwa A, Hirasawa M, Katsumoto S, Iye Y, Urano C, Takagi H, Munekata H 1997 Physical Review Letters 78 4617
[13] Vurgaftman I, Meyer J R 2004 Physical Review B 70 115320
[14] Abe E, Matsukura F, Yasuda H, Ohno Y, Ohno H 2000 Physica E: Low-dimensional Systems and Nanostructures 7 981
[15] Lim W L, Wojtowicz T, Liu X, Dobrowolska M, Furdyna J K 2004 Physica E: Low-dimensional Systems and Nanostructures 20 346
[16] Nishitani Y, Endo M, Matsukura F, Ohno H 2010 Physica E: Low-dimensional Systems and Nanostructures 42 2681
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[1] Wolf S A, Awschalom D D, Buhrman R A, Daughton J M, von Molnár S, Roukes M L, Chtchelkanova A Y, Treger D M 2001 Science 294 1488
[2] Žutić I, Fabian J, Das Sarma S 2004 Reviews of Modern Physics 76 323
[3] Dietl T, Ohno H 2014 Reviews of Modern Physics 86 187
[4] Wang H L, Chen L, Zhao J H 2013 Science China Physics, Mechanics and Astronomy 56 99
[5] He Z X, Zheng H Z, Huang X J, Wang H L, Zhao J H 2014 Chin. Phys. B 23 77801
[6] Woodbury D A, Blakemore J 1973 Physical Review B 8 3803
[7] Munekata H, Ohno H, von Molnár S, Segmäler A, Chang L L, Esaki L 1989 Physical Review Letters 63 1849
[8] Ohno H, Shen A, Matsukura F, Oiwa A, Endo A, Katsumoto S, Iye Y 1996 Applied Physics Letters 69 363
[9] Chen L, Yang X, Yang F H, Zhao J H, Misuraca J, Xiong P, von Molnár S 2011 Nano Letters 11 2584
[10] Linnarsson M, Janz E, Monemar B, Kleverman M, Thilderkvist A 1997 Physical Review B 55 6938
[11] Georgitse E I, Gutsulyak L M, Ivanov-Omskii I I, Masterov V F, Smirnov V A, Shtel’makh K F 1992 Soviet physics. Semiconductors 26 50
[12] Koshihara S, Oiwa A, Hirasawa M, Katsumoto S, Iye Y, Urano C, Takagi H, Munekata H 1997 Physical Review Letters 78 4617
[13] Vurgaftman I, Meyer J R 2004 Physical Review B 70 115320
[14] Abe E, Matsukura F, Yasuda H, Ohno Y, Ohno H 2000 Physica E: Low-dimensional Systems and Nanostructures 7 981
[15] Lim W L, Wojtowicz T, Liu X, Dobrowolska M, Furdyna J K 2004 Physica E: Low-dimensional Systems and Nanostructures 20 346
[16] Nishitani Y, Endo M, Matsukura F, Ohno H 2010 Physica E: Low-dimensional Systems and Nanostructures 42 2681
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