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The demagnetization, spin switching, and spin transfer in magnetic molecular systems can be theoretically achieved via the laser-induced Λ process. In the present work, both quantum chemistry ab initio calculations and our self-written programs are adopted to investigate the spin-transfer behavior of the magnetic molecular ions with linear configuration. It is shown for the first time that the Λ process based ultrafast spin transfer can be achieved in a linear two-magnetic-center molecular ion [Fe-O-Co]+, and the fidelity of the population transfer exceeds 90%. The present theoretical prediction shows that the magnetocrystalline anisotropy of a molecular system can be enhanced by properly adjusting the direction of the applied magnetic field, which is shown to be a better way to improve the spin-transfer ability of the molecular system than by increasing additional bridging atoms since it could avoid the complexity of the latter situation in practical applications. At the same time, the present spin-transfer scenario indicates that the fidelity of the population transfer could also be evidently increased.
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Keywords:
- linear magnetic molecular ions /
- Λ process /
- ultrafast spin transfer /
- first-principles method
[1] Beaurepaire E, Merle J C, Daunois A, Bigot J Y 1996 Phys. Rev. Lett. 76 4250
[2] Koopmans B, Ruigrok J J M, Dalla Longa F, de Jonge W J M 2005 Phys. Rev. Lett. 95 267207
[3] Chovan J, Kavousanaki E G, Perakis I E 2006 Phys. Rev. Lett. 96 057402
[4] Koopmans B, Malinowski J, Dalla Longa F, Steiauf D, Fähnle M, Roth T, Cinchetti M, Aeschlimann M 2010 Nat. Mater. 9 259
[5] Zhang G P, Hübner W, Lefkidis G, Bai Y, George T F 2009 Nat. Phys. 5 499
[6] Bigot J Y, Vomir M, Beaurepaire E 2009 Nat. Phys. 5 515
[7] Boeglin C, Beaurepaire E, Halté V, López-Flores V, Stamm C, Pontius N, Dürr H A, Bigot J Y 2010 Nature 465 458
[8] Guo L J, Wüstenberg J P, Oleksiy A, Bauer M, Aeschlimann M 2005 Acta Phys. Sin. 54 3200 (in Chinese) [郭立俊, Jan-Peter Wüstenberg, Andreyev Oleksiy, Michael Bauer, Martin Aeschlimann 2005 54 3200]
[9] Sukhov A, Berakdar J 2009 Phys. Rev. Lett. 102 057204
[10] Atxitia U, Chubykalo-Fesenko O, Chantrell R W, Nowak U, Rebei A 2009 Phys. Rev. Lett. 102 057203
[11] Hübner W, Zhang G P 1998 Phys. Rev. B 58 R5920
[12] Zhang G P, Hübner W 2000 Phys. Rev. Lett. 85 3025
[13] Gómez-Abal R, Ney O, Satitkovitchai K, Hübner W 2004 Phys. Rev. Lett. 92 227402
[14] Shen Y R, Bloembergen N 1966 Phys. Rev. 143 372
[15] Lefkidis G, Hübner W 2007 Phys. Rev. B 76 014418
[16] Li C, Hartenstein T, Lefkidis G, Hübner W 2009 Phys. Rev. B 79 180413(R)
[17] Hartenstein T, Li C, Lefkidis G, Hübner W 2008 J. Phys. D: Appl. Phys. 41 164006
[18] Lefkidis G, Zhang G P, Hübner W 2009 Phys. Rev. Lett. 103 217401
[19] Lefkidis G, Li C, Pal G, Blug M, Kelm H, Krüger H J, Hübner W 2011 J. Phys. Chem. A 115 1774
[20] Hübner W, Kersten S P, Lefkidis G 2009 Phys. Rev. B 79 184431
[21] Li C, Yang F, Lefkidis G, Hübner W 2011 Acta Phys. Sin. 60 017802 (in Chinese) [李春, 杨帆, Georgios Lefkidis, Wolfgang Hübner 2011 60 017802]
[22] Li C, Zhang S, Jin W, Xiang H, Lefkidis G, Hübner W 2012 J. Magn. Magn. Mater. http: // dx.doi.org/ 10.1016/ j.jmmm. 2012. 07.007
[23] Li C, Jin W, Xiang H, Lefkidis G, Hübner W 2011 Phys. Rev. B 84 054415
[24] Frisch M J 2004 Gaussian 03 Revision B.03 gaussian Inc. (Wallingford CT)
[25] Nakatsuji H 1979 Chem. Phys. Lett. 67 329
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[1] Beaurepaire E, Merle J C, Daunois A, Bigot J Y 1996 Phys. Rev. Lett. 76 4250
[2] Koopmans B, Ruigrok J J M, Dalla Longa F, de Jonge W J M 2005 Phys. Rev. Lett. 95 267207
[3] Chovan J, Kavousanaki E G, Perakis I E 2006 Phys. Rev. Lett. 96 057402
[4] Koopmans B, Malinowski J, Dalla Longa F, Steiauf D, Fähnle M, Roth T, Cinchetti M, Aeschlimann M 2010 Nat. Mater. 9 259
[5] Zhang G P, Hübner W, Lefkidis G, Bai Y, George T F 2009 Nat. Phys. 5 499
[6] Bigot J Y, Vomir M, Beaurepaire E 2009 Nat. Phys. 5 515
[7] Boeglin C, Beaurepaire E, Halté V, López-Flores V, Stamm C, Pontius N, Dürr H A, Bigot J Y 2010 Nature 465 458
[8] Guo L J, Wüstenberg J P, Oleksiy A, Bauer M, Aeschlimann M 2005 Acta Phys. Sin. 54 3200 (in Chinese) [郭立俊, Jan-Peter Wüstenberg, Andreyev Oleksiy, Michael Bauer, Martin Aeschlimann 2005 54 3200]
[9] Sukhov A, Berakdar J 2009 Phys. Rev. Lett. 102 057204
[10] Atxitia U, Chubykalo-Fesenko O, Chantrell R W, Nowak U, Rebei A 2009 Phys. Rev. Lett. 102 057203
[11] Hübner W, Zhang G P 1998 Phys. Rev. B 58 R5920
[12] Zhang G P, Hübner W 2000 Phys. Rev. Lett. 85 3025
[13] Gómez-Abal R, Ney O, Satitkovitchai K, Hübner W 2004 Phys. Rev. Lett. 92 227402
[14] Shen Y R, Bloembergen N 1966 Phys. Rev. 143 372
[15] Lefkidis G, Hübner W 2007 Phys. Rev. B 76 014418
[16] Li C, Hartenstein T, Lefkidis G, Hübner W 2009 Phys. Rev. B 79 180413(R)
[17] Hartenstein T, Li C, Lefkidis G, Hübner W 2008 J. Phys. D: Appl. Phys. 41 164006
[18] Lefkidis G, Zhang G P, Hübner W 2009 Phys. Rev. Lett. 103 217401
[19] Lefkidis G, Li C, Pal G, Blug M, Kelm H, Krüger H J, Hübner W 2011 J. Phys. Chem. A 115 1774
[20] Hübner W, Kersten S P, Lefkidis G 2009 Phys. Rev. B 79 184431
[21] Li C, Yang F, Lefkidis G, Hübner W 2011 Acta Phys. Sin. 60 017802 (in Chinese) [李春, 杨帆, Georgios Lefkidis, Wolfgang Hübner 2011 60 017802]
[22] Li C, Zhang S, Jin W, Xiang H, Lefkidis G, Hübner W 2012 J. Magn. Magn. Mater. http: // dx.doi.org/ 10.1016/ j.jmmm. 2012. 07.007
[23] Li C, Jin W, Xiang H, Lefkidis G, Hübner W 2011 Phys. Rev. B 84 054415
[24] Frisch M J 2004 Gaussian 03 Revision B.03 gaussian Inc. (Wallingford CT)
[25] Nakatsuji H 1979 Chem. Phys. Lett. 67 329
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