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Chin. Phys. B, 2016, Vol. 25(5): 057308    DOI: 10.1088/1674-1056/25/5/057308
CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES Prev   Next  

Length dependence of rectification in organic co-oligomer spin rectifiers

Gui-Chao Hu(胡贵超), Zhao Zhang(张朝), Ying Li(李营), Jun-Feng Ren(任俊峰), Chuan-Kui Wang(王传奎)
School of Physics and Electronics, Shandong Normal University, Jinan 250014, China
Abstract  The rectification ratio of organic magnetic co-oligomer diodes is investigated theoretically by changing the molecular length. The results reveal two distinct length dependences of the rectification ratio: for a short molecular diode, the charge-current rectification changes little with the increase of molecular length, while the spin-current rectification is weakened sharply by the length; for a long molecular diode, both the charge-current and spin-current rectification ratios increase quickly with the length. The two kinds of dependence switch at a specific length accompanied with an inversion of the rectifying direction. The molecular ortibals and spin-resolved transmission analysis indicate that the dominant mechanism of rectification suffers a change at this specific length, that is, from asymmetric shift of molecular eigenlevels to asymmetric spatial localization of wave functions upon the reversal of bias. This work demonstrates a feasible way to control the rectification in organic co-oligomer spin diodes by adjusting the molecular length.
Keywords:  organic spintronics      organic ferromagnet      rectification  
Received:  23 December 2015      Revised:  20 January 2016      Accepted manuscript online: 
PACS:  73.63.-b (Electronic transport in nanoscale materials and structures)  
  75.10.Lp (Band and itinerant models)  
  85.75.-d (Magnetoelectronics; spintronics: devices exploiting spin polarized transport or integrated magnetic fields)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11374195), the Natural Science Foundation of Shandong Province, China (Grant No. ZR2014AM017), the Taishan Scholar Project of Shandong Province, China, and the Excellent Young Scholars Research Fund of Shandong Normal University, China.
Corresponding Authors:  Gui-Chao Hu     E-mail:  hgc@sdnu.edu.cn

Cite this article: 

Gui-Chao Hu(胡贵超), Zhao Zhang(张朝), Ying Li(李营), Jun-Feng Ren(任俊峰), Chuan-Kui Wang(王传奎) Length dependence of rectification in organic co-oligomer spin rectifiers 2016 Chin. Phys. B 25 057308

[1] Aviram A and Ratner M A 1974 Chem. Phys. Lett. 29 277
[2] Martin A S, Sambles J R and Ashwell G J 1993 Phys. Rev. Lett. 70 218
[3] Zhou C, Deshpande M R, Reed M A, Jones L and Tour J M 1997 Appl. Phys. Lett. 71 611
[4] Ng M K, Lee D C and Yu L P 2004 J. Am. Chem. Soc. 124 11862
[5] Díez-Pérez I, Hihath J, Lee Y, Yu L, Adamska L, Kozhushner M A, Oleynik I I and Tao N 2009 Nat. Chem. 1 635
[6] Ashwell G J, Tyrrell W D and Whittam A J 2004 J. Am. Chem. Soc. 126 7102
[7] Morales G M, Jiang P, Yuan S, Lee Y, Sanchez A, You W and Yu L 2004 J. Am. Chem. Soc. 124 11862
[8] Lee Y, Carsten B and Yu L 2009 Langmuir 25 1495
[9] Zhang G P, Hu G C, Song Y, Li Z L and Wang C K 2012 J. Phys. Chem. C 116 22009
[10] Merchant C A and Marković N 2008 Phys. Rev. Lett. 100 156601
[11] Zhai F, Guo Y and Gu B L 2003 J. Appl. Phys. 94 5432
[12] Dalgleish H and Kirczenow G 2006 Phys. Rev. B 73 235436
[13] Hu G C, He K L, Xie S J and Saxena A 2008 J. Chem. Phys. 129 234708
[14] Hu G C, Wang H and Ren J F 2011 Chin. Phys. B 20 077306
[15] Hu G C, Zuo M Y, Li Y, Zhang Z, Ren J F and Wang C K 2015 Chin. Phys. B 24 077308
[16] Huang J, Li Q, Li Z and Yang J 2009 J. Nanosci. Nanotechnol. 9 774
[17] Hu G C, Zhang G P, Ren J F, Wang C K and Xie S J 2011 Appl. Phys. Lett. 99 082105
[18] Korshak Y V, Medvedeva T V, Ovchinnikov A A and Spector V N 1987 Nature 326 370
[19] Cao Y, Wang P, Hu Z, Li S Z, Zhang L Y and Zhao J G 1988 Synth. Met. 27 B625
[20] Fang Z, Liu Z L and Yao K L 1994 Phys. Rev. B 49 3916
[21] Hu G C, Wang H, Ren J F, Xie S J and Timm C 2014 Org. Electron. 15 118
[22] Datta S 1995 Electronic Transport in Mesoscopic Systems (New York: Oxford University Press) p. 148
[23] Xie S J, Zhao J Q, Wei J H, Wang S G, Mei L M and Han S H 2000 Europhys. Lett. 50 635
[24] Jiang J, Morales G M, You W and Yu L P 2004 Angew. Chem., Int. Ed. Engl. 43 4471
[25] Fan Z Q and Chen K Q 2010 Appl. Phys. Lett. 96 053509
[26] Zhang Z, Zhang J, Kwong J, Li J, Fan Z, Deng X and Tang G 2013 Sci. Rep. 3 2575
[27] Yu Z G and Song X Y 2001 Phys. Rev. Lett. 86 6018
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