Metal-insulator transition in (Ga, Mn)As

被引：1
|
作者：
Hayashi, T [1 ]
Hashimoto, Y [1 ]
Katsumoto, S [1 ]
Iye, Y [1 ]
机构：
[1] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan
来源：
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2002年 / 63卷 / 6-8期
关键词：
magnetic materials; semiconductors; magnetic properties; phase transitions;
D O I：
10.1016/S0022-3697(02)00115-4
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Detailed measurement of transport very close to two metal-insulator critical points in a diluted magnetic semiconductor (Ga, Mn)As is reported. The first metal-insulator transition (MIT) at the dilute-side of the metallic phase is associated with the appearance of the ferromagnetism and the effect of correlation between the electrons (holes) cannot be ignored. On the other hand, the second MIT at higher concentration is purely driven by disorder and disorder-modified Coulomb interaction. It is shown experimentally that the difference in the characters of these two MITs clearly appears in the width of region in which two-parameter scaling works well. This result gives an important suggestion to the long-debated 'exponent puzzle' in the MIT of doped semiconductors. (C) 2002 Published by Elsevier Science Ltd.
引用
收藏
页码：1315 / 1318
页数：4
相关论文
共 50 条
  • [31] Theory of metal-insulator transition in PrFe4P12 and PrRu4P12
    Curnoe, SH
    Ueda, K
    Harima, H
    Takegahara, K
    JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2002, 63 (6-8) : 1207 - 1210
  • [32] Emergence of large thermal noise close to a temperature-driven metal-insulator transition
    Chatterjee, Sudipta
    Bisht, Ravindra Singh
    Reddy, V. Raghavendra
    Raychaudhuri, A. K.
    PHYSICAL REVIEW B, 2021, 104 (15)
  • [33] Limits on vanadium oxide Mott metal-insulator transition field-effect transistors
    Hormoz, S.
    Ramanathan, S.
    SOLID-STATE ELECTRONICS, 2010, 54 (06) : 654 - 659
  • [34] Giant Seebeck effect across the field-induced metal-insulator transition of InAs
    Jaoui, Alexandre
    Seyfarth, Gabriel
    Rischau, Carl Willem
    Wiedmann, Steffen
    Benhabib, Siham
    Proust, Cyril
    Behnia, Kamran
    Fauque, Benoit
    NPJ QUANTUM MATERIALS, 2020, 5 (01)
  • [35] Magnetic properties and the metal-insulator transition in GdXMn1-XS solid solutions
    Romanova, O. B.
    Ryabinkina, L. I.
    Sokolov, V. V.
    Pichugin, A. Yu.
    Velikanov, D. A.
    Balaev, D. A.
    Galyas, A. I.
    Demidenko, O. F.
    Makovetskii, G. I.
    Yanushkevich, K. I.
    SOLID STATE COMMUNICATIONS, 2010, 150 (13-14) : 602 - 604
  • [36] Effect of Nitrogen Substitution in V2O3 on the Metal-Insulator Transition
    Kumar, Nitesh
    Sreedhara, M. B.
    Kouser, Summayya
    Waghmare, Umesh V.
    Rao, C. N. R.
    CHEMPHYSCHEM, 2015, 16 (13) : 2745 - 2750
  • [37] Tuning spin dynamics and localization near the metal-insulator transition in Fe/GaAs heterostructures
    Ou, Yu-Sheng
    Harmon, N. J.
    Odenthal, Patrick
    Kawakami, R. K.
    Flatte, M. E.
    Johnston-Halperin, E.
    PHYSICAL REVIEW B, 2018, 98 (13)
  • [38] Magnetically driven phonon instability enables the metal-insulator transition in h-FeS
    Bansal, Dipanshu
    Niedziela, Jennifer L.
    Calder, Stuart
    Lanigan-Atkins, Tyson
    Rawl, Ryan
    Said, Ayman H.
    Abernathy, Douglas L.
    Kolesnikov, Alexander I.
    Zhou, Haidong
    Delaire, Olivier
    NATURE PHYSICS, 2020, 16 (06) : 669 - +
  • [39] Modulating Photoluminescence of Monolayer Molybdenum Disulfide by Metal-Insulator Phase Transition in Active Substrates
    Hou, Jiwei
    Wang, Xi
    Fu, Deyi
    Ko, Changhyun
    Chen, Yabin
    Sun, Yufei
    Lee, Sangwook
    Wang, Kevin X.
    Dong, Kaichen
    Sun, Yinghui
    Tongay, Sefaattin
    Jiao, Liying
    Yao, Jie
    Liu, Kai
    Wu, Junqiao
    SMALL, 2016, 12 (29) : 3976 - 3984
  • [40] Nickel-induced metal-insulator transition in the small a cation manganites Ln(0.5)Ca(0.5)MnO(3)
    Maignan, A
    Damay, F
    Martin, C
    Raveau, B
    MATERIALS RESEARCH BULLETIN, 1997, 32 (07) : 965 - 972
12345