Abstract

A spinel LiMn<sub>2</sub>O<sub>4</sub> is investigated via Raman spectroscopy at 514.5-nm excitation and X-ray diffraction. The dependence of Raman spectra on the different irradiated laser powers is determined and found to be different from that at 632.8-nm excitation. Based on our extensive analysis, our experimental results can be attributed to the laser heating effect, which reduces the Mn<sup>4+</sup> cation concentration in the local area. Consequently, the decrease in average Mn valence in the local area unavoidably induces the Jahn-Teller effect and local lattice distortion, which accounts for the evolution of the measured Raman spectra of spinel LiMn<sub>2</sub>O<sub>4</sub>.

© 2012 Chinese Optics Letters

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X. Liu, C. Huang, J. Qiu, and Y. Wang, Appl. Surf. Sci. 253, 2747 (2006).

S. J. Rigby, A. H. R. Al-Obaidi, S. K. Lee, D. McStay, and P. K. J. Robertson, Appl. Surf. Sci. 252, 7948 (2006).

2005 (2)

Y. Bai, Y. Lan, and Y. Mo, Acta Phys. Sin. (in Chinese) 54, 4654 (2005).

Y. Bai, Y. Lan, H. Zhu, and Y. Mo, Acta Opt. Sin. (in Chinese) 25, 1712 (2005).

2004 (1)

A. Paolone, A. Sacchetti, T. Corridoni, P. Postorino, R. Cantelli, G. Rousse, and C. Masquelier, Solid State Ionics 170, 135 (2004).

2001 (1)

S.W. Song, K. S. Han, H. Fujita, and M. Yoshimura, Chem. Phys. Lett. 344, 299 (2001).

1997 (1)

M. M. Thackeray, Prog. Solid. St. Chem. 25, 1 (1997).

1995 (1)

Y. Xia, H. Takeshige, H. Noguchi, and M. Yoshio, J. Power Sources 56, 61 (1995).

1994 (2)

K. Ozawa, Solid State Ionics 69, 212 (1994).

S. Magahed and B. Scrosati, J. Power Sources 51, 79 (1994).

1991 (1)

J. M. Tarascon, E. Wang, F. K. Sholooki, W. R. Mckinnon, and S. Colson, J. Electrochem. Soc. 138, 2859 (1991).

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T. Nagaura and K. Tazawa, Progress in Batteries and Solar Cells 9, 209 (1990).

T. Ohzuku, M. Kitagawa, and T. Hirai, J. Electrochem. Soc. 137, 769 (1990).

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S. J. Rigby, A. H. R. Al-Obaidi, S. K. Lee, D. McStay, and P. K. J. Robertson, Appl. Surf. Sci. 252, 7948 (2006).

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Y. Bai, Y. Lan, and Y. Mo, Acta Phys. Sin. (in Chinese) 54, 4654 (2005).

Y. Bai, Y. Lan, H. Zhu, and Y. Mo, Acta Opt. Sin. (in Chinese) 25, 1712 (2005).

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A. Paolone, A. Sacchetti, T. Corridoni, P. Postorino, R. Cantelli, G. Rousse, and C. Masquelier, Solid State Ionics 170, 135 (2004).

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J. M. Tarascon, E. Wang, F. K. Sholooki, W. R. Mckinnon, and S. Colson, J. Electrochem. Soc. 138, 2859 (1991).

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A. Paolone, A. Sacchetti, T. Corridoni, P. Postorino, R. Cantelli, G. Rousse, and C. Masquelier, Solid State Ionics 170, 135 (2004).

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S.W. Song, K. S. Han, H. Fujita, and M. Yoshimura, Chem. Phys. Lett. 344, 299 (2001).

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Guo, L.

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S.W. Song, K. S. Han, H. Fujita, and M. Yoshimura, Chem. Phys. Lett. 344, 299 (2001).

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T. Ohzuku, M. Kitagawa, and T. Hirai, J. Electrochem. Soc. 137, 769 (1990).

Huang, C.

X. Liu, C. Huang, J. Qiu, and Y. Wang, Appl. Surf. Sci. 253, 2747 (2006).

Kitagawa, M.

T. Ohzuku, M. Kitagawa, and T. Hirai, J. Electrochem. Soc. 137, 769 (1990).

Lan, Y.

Y. Bai, Y. Lan, and Y. Mo, Acta Phys. Sin. (in Chinese) 54, 4654 (2005).

Y. Bai, Y. Lan, H. Zhu, and Y. Mo, Acta Opt. Sin. (in Chinese) 25, 1712 (2005).

Lee, S. K.

S. J. Rigby, A. H. R. Al-Obaidi, S. K. Lee, D. McStay, and P. K. J. Robertson, Appl. Surf. Sci. 252, 7948 (2006).

Li, L.

Li, Q.

Liu, X.

X. Liu, C. Huang, J. Qiu, and Y. Wang, Appl. Surf. Sci. 253, 2747 (2006).

Magahed, S.

S. Magahed and B. Scrosati, J. Power Sources 51, 79 (1994).

Masquelier, C.

A. Paolone, A. Sacchetti, T. Corridoni, P. Postorino, R. Cantelli, G. Rousse, and C. Masquelier, Solid State Ionics 170, 135 (2004).

Mckinnon, W. R.

J. M. Tarascon, E. Wang, F. K. Sholooki, W. R. Mckinnon, and S. Colson, J. Electrochem. Soc. 138, 2859 (1991).

McStay, D.

S. J. Rigby, A. H. R. Al-Obaidi, S. K. Lee, D. McStay, and P. K. J. Robertson, Appl. Surf. Sci. 252, 7948 (2006).

Mo, Y.

Y. Bai, Y. Lan, and Y. Mo, Acta Phys. Sin. (in Chinese) 54, 4654 (2005).

Y. Bai, Y. Lan, H. Zhu, and Y. Mo, Acta Opt. Sin. (in Chinese) 25, 1712 (2005).

Nagaura, T.

T. Nagaura and K. Tazawa, Progress in Batteries and Solar Cells 9, 209 (1990).

Noguchi, H.

Y. Xia, H. Takeshige, H. Noguchi, and M. Yoshio, J. Power Sources 56, 61 (1995).

Ohzuku, T.

T. Ohzuku, M. Kitagawa, and T. Hirai, J. Electrochem. Soc. 137, 769 (1990).

Ozawa, K.

K. Ozawa, Solid State Ionics 69, 212 (1994).

Paolone, A.

A. Paolone, A. Sacchetti, T. Corridoni, P. Postorino, R. Cantelli, G. Rousse, and C. Masquelier, Solid State Ionics 170, 135 (2004).

Postorino, P.

A. Paolone, A. Sacchetti, T. Corridoni, P. Postorino, R. Cantelli, G. Rousse, and C. Masquelier, Solid State Ionics 170, 135 (2004).

Qiu, J.

X. Liu, C. Huang, J. Qiu, and Y. Wang, Appl. Surf. Sci. 253, 2747 (2006).

Rigby, S. J.

S. J. Rigby, A. H. R. Al-Obaidi, S. K. Lee, D. McStay, and P. K. J. Robertson, Appl. Surf. Sci. 252, 7948 (2006).

Robertson, P. K. J.

S. J. Rigby, A. H. R. Al-Obaidi, S. K. Lee, D. McStay, and P. K. J. Robertson, Appl. Surf. Sci. 252, 7948 (2006).

Rousse, G.

A. Paolone, A. Sacchetti, T. Corridoni, P. Postorino, R. Cantelli, G. Rousse, and C. Masquelier, Solid State Ionics 170, 135 (2004).

Sacchetti, A.

A. Paolone, A. Sacchetti, T. Corridoni, P. Postorino, R. Cantelli, G. Rousse, and C. Masquelier, Solid State Ionics 170, 135 (2004).

Scrosati, B.

S. Magahed and B. Scrosati, J. Power Sources 51, 79 (1994).

Sholooki, F. K.

J. M. Tarascon, E. Wang, F. K. Sholooki, W. R. Mckinnon, and S. Colson, J. Electrochem. Soc. 138, 2859 (1991).

Song, S.W.

S.W. Song, K. S. Han, H. Fujita, and M. Yoshimura, Chem. Phys. Lett. 344, 299 (2001).

Takeshige, H.

Y. Xia, H. Takeshige, H. Noguchi, and M. Yoshio, J. Power Sources 56, 61 (1995).

Tan, E.

Tarascon, J. M.

J. M. Tarascon, E. Wang, F. K. Sholooki, W. R. Mckinnon, and S. Colson, J. Electrochem. Soc. 138, 2859 (1991).

Tazawa, K.

T. Nagaura and K. Tazawa, Progress in Batteries and Solar Cells 9, 209 (1990).

Thackeray, M. M.

M. M. Thackeray, Prog. Solid. St. Chem. 25, 1 (1997).

Wang, E.

J. M. Tarascon, E. Wang, F. K. Sholooki, W. R. Mckinnon, and S. Colson, J. Electrochem. Soc. 138, 2859 (1991).

Wang, Y.

X. Liu, C. Huang, J. Qiu, and Y. Wang, Appl. Surf. Sci. 253, 2747 (2006).

Xia, Y.

Y. Xia, H. Takeshige, H. Noguchi, and M. Yoshio, J. Power Sources 56, 61 (1995).

Yin, P.

Yoshimura, M.

S.W. Song, K. S. Han, H. Fujita, and M. Yoshimura, Chem. Phys. Lett. 344, 299 (2001).

Yoshio, M.

Y. Xia, H. Takeshige, H. Noguchi, and M. Yoshio, J. Power Sources 56, 61 (1995).

Zhao, H.

Zhu, H.

Y. Bai, Y. Lan, H. Zhu, and Y. Mo, Acta Opt. Sin. (in Chinese) 25, 1712 (2005).

Acta Opt. Sin. (in Chinese) (1)

Y. Bai, Y. Lan, H. Zhu, and Y. Mo, Acta Opt. Sin. (in Chinese) 25, 1712 (2005).

Acta Phys. Sin. (in Chinese) (1)

Y. Bai, Y. Lan, and Y. Mo, Acta Phys. Sin. (in Chinese) 54, 4654 (2005).

Appl. Surf. Sci. (2)

X. Liu, C. Huang, J. Qiu, and Y. Wang, Appl. Surf. Sci. 253, 2747 (2006).

S. J. Rigby, A. H. R. Al-Obaidi, S. K. Lee, D. McStay, and P. K. J. Robertson, Appl. Surf. Sci. 252, 7948 (2006).

Chem. Phys. Lett. (1)

S.W. Song, K. S. Han, H. Fujita, and M. Yoshimura, Chem. Phys. Lett. 344, 299 (2001).

Chin. Opt. Lett. (2)

J. Electrochem. Soc. (2)

J. M. Tarascon, E. Wang, F. K. Sholooki, W. R. Mckinnon, and S. Colson, J. Electrochem. Soc. 138, 2859 (1991).

T. Ohzuku, M. Kitagawa, and T. Hirai, J. Electrochem. Soc. 137, 769 (1990).

J. Power Sources (2)

S. Magahed and B. Scrosati, J. Power Sources 51, 79 (1994).

Y. Xia, H. Takeshige, H. Noguchi, and M. Yoshio, J. Power Sources 56, 61 (1995).

Prog. Solid. St. Chem. (1)

M. M. Thackeray, Prog. Solid. St. Chem. 25, 1 (1997).

Progress in Batteries and Solar Cells (1)

T. Nagaura and K. Tazawa, Progress in Batteries and Solar Cells 9, 209 (1990).

Solid State Ionics (2)

K. Ozawa, Solid State Ionics 69, 212 (1994).

A. Paolone, A. Sacchetti, T. Corridoni, P. Postorino, R. Cantelli, G. Rousse, and C. Masquelier, Solid State Ionics 170, 135 (2004).

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