Effects of capping on the Ga1−xMnxAs magnetic depth profile
作者： J. K. Furdyna , J. A. Borchers , J. J. Rhyne , B. J. Kirby , K. V. O’Donovan
DOI: 10.1063/1.1867292
关键词:
摘要: Annealing can increase the Curie temperature and net magnetization in uncapped Ga1−xMnxAs films, effects that are suppressed when films capped with GaAs. Previous polarized neutron reflectometry (PNR) studies of revealed a pronounced gradient was reduced after annealing. We have extended this study to observe no or upon Furthermore, PNR measurements indicate annealing produces minimal differences depth-dependent magnetization, as both as-grown annealed feature significant gradient. These results suggest GaAs cap inhibits redistribution interstitial Mn impurities during
scitation.org
harvard.edu
aip.org 
sci-hub.st 参考文章(17)
SJ Potashnik, KC Ku, SH Chun, JJ Berry, N Samarth, P Schiffer, None, Effects of annealing time on defect-controlled ferromagnetism in Ga1−xMnxAs Applied Physics Letters. ,vol. 79, pp. 1495- 1497 ,(2001) , 10.1063/1.1398619
MB Stone, KC Ku, SJ Potashnik, BL Sheu, N Samarth, P Schiffer, None, Capping-induced suppression of annealing effects on Ga1−xMnxAs epilayers Applied Physics Letters. ,vol. 83, pp. 4568- 4570 ,(2003) , 10.1063/1.1629376
KC Ku, SJ Potashnik, RF Wang, SH Chun, P Schiffer, N Samarth, MJ Seong, A Mascarenhas, E Johnston-Halperin, RC Myers, AC Gossard, DD Awschalom, None, Highly enhanced Curie temperature in low-temperature annealed [Ga,Mn]As epilayers Applied Physics Letters. ,vol. 82, pp. 2302- 2304 ,(2003) , 10.1063/1.1564285
KM Yu, W Walukiewicz, T Wojtowicz, I Kuryliszyn, X Liu, Y Sasaki, JK Furdyna, None, Effect of the location of Mn sites in ferromagnetic Ga 1-x Mn x As on its Curie temperature Physical Review B. ,vol. 65, pp. 201303- ,(2002) , 10.1103/PHYSREVB.65.201303
G. M. Schott, W. Faschinger, L. W. Molenkamp, Lattice constant variation and complex formation in zincblende gallium manganese arsenide Applied Physics Letters. ,vol. 79, pp. 1807- 1809 ,(2001) , 10.1063/1.1403238
G. P. Felcher, Neutron reflection as a probe of surface magnetism Physical Review B. ,vol. 24, pp. 1595- 1598 ,(1981) , 10.1103/PHYSREVB.24.1595
J. F. Ankner, C. F. Majkrzak, H. Homma, Magnetic dead layer in Fe/Si multilayer: Profile refinement of polarized neutron reflectivity data Journal of Applied Physics. ,vol. 73, pp. 6436- 6437 ,(1993) , 10.1063/1.352624
D. Chiba, K. Takamura, F. Matsukura, H. Ohno, Effect of low-temperature annealing on (Ga,Mn)As trilayer structures Applied Physics Letters. ,vol. 82, pp. 3020- 3022 ,(2003) , 10.1063/1.1571666
B. Beschoten, P. A. Crowell, I. Malajovich, D. D. Awschalom, F. Matsukura, A. Shen, H. Ohno, Magnetic circular dichroism studies of carrier-induced ferromagnetism in (Ga1-xMnx)as Physical Review Letters. ,vol. 83, pp. 3073- 3076 ,(1999) , 10.1103/PHYSREVLETT.83.3073
Takashi Hayashi, Yoshiaki Hashimoto, Shingo Katsumoto, Yasuhiro Iye, Effect of low-temperature annealing on transport and magnetism of diluted magnetic semiconductor (Ga, Mn)As Applied Physics Letters. ,vol. 78, pp. 1691- 1693 ,(2001) , 10.1063/1.1352701