| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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The Optical Study of Single Crystalline Cs0.8(Fe1.05Se)2 with High Néel Temperature |
| YUAN Rui-Hua, DONG Tao, WANG Nan-Lin** |
Laboratory of Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190
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| Cite this article: |
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YUAN Rui-Hua, DONG Tao, WANG Nan-Lin 2013 Chin. Phys. Lett. 30 077403 |
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Abstract We report an optical spectroscopy study on an iron-selenide single crystal of insulating Cs0.8(Fe1.05Se)2 with relatively high Néel temperature. The resistivity and magnetization measurements reveal a semiconductor behavior with TN=492 K. The sample has been examined in the temperature range from 10 K up to 500 K by using infrared measurement. The low frequency optical measurement implies an insulating response with a major absorption near 0.31 eV. The double-peak structure in the mid-infrared region and the low-frequency phonon modes support the presence of the blocked anti-ferromagnetism. The infrared measurement reveals no signature of SDW-type energy gap formation below the anti-ferromagnetic-order temperature.
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Received: 13 March 2013
Published: 21 November 2013
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| PACS: |
74.25.Gz
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(Optical properties)
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74.70.-b
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(Superconducting materials other than cuprates)
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74.62.Bf
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(Effects of material synthesis, crystal structure, and chemical composition)
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[1] Guo J G, Jin S F, Wang G, Wang S C, Zhu K X, Zhou T T, He M and Chen X L 2010 Phys. Rev. B 82 180520
[2] Yan X W, Gao M, Lu Z Y and Xiang T 2011 Phys. Rev. Lett. 106 087005
[3] Hu J P and Ding H 2012 Sci. Rep. 2 381
[4] You Y Z, Yao H and Lee D H 2011 Phys. Rev. B 84 020406
[5] Qian T, Wang X P, Jin W C, Zhang P, Richard P, Xu G, Dai X, Fang Z, Guo J G, Chen X L and Ding H 2011 Phys. Rev. Lett. 106 187001
[6] Zhang Y, Yang L X, Xu M, Ye Z R, Chen F, He C, Xu H C, Jiang J, Xie B P, Ying J J, Wang X F, Chen X H, Hu J P, Matsunami M, Kimura S et al 2011 Nat. Mater. 10 273
[7] Dong J, Zhang H J, Xu G, Li Z, Li G, Hu W Z, Wu D, Chen G F, Dai X, Luo J L, Fang Z and Wang N L 2008 Europhys. Lett. 83 27006
[8] Hu W Z, Dong J, Li G, Li Z, Zheng P, Chen G F, Luo J L and Wang N L 2008 Phys. Rev. Lett. 101 257005
[9] Huang Q, Qiu Y, Bao W, Green M A, Lynn J W, Gasparovic Y C, Wu T, Wu G and Chen X H 2008 Phys. Rev. Lett. 101 257003
[10] Dong T, Chen Z G, Yuan R H, Hu B F, Cheng B and Wang N L 2010 Phys. Rev. B 82 054522
[11] Hu W Z, Li G, Zheng P, Chen G F, Luo J L and Wang N L 2009 Phys. Rev. B 80 100507
[12] Yuan R H, Dong T, Song Y J, Zheng P, Chen G F, Hu J P, Li J Q and Wang N L 2012 Sci. Rep. 2 221
[13] Chen Z G, Yuan R H, Dong T, Xu G, Shi Y G, Zheng P, Luo J L, Guo J G, Chen X L and Wang N L 2011 Phys. Rev. B 83 220507
[14] Bao W, Li G N, Huang Q Z, Chen G F, He J B, Wang D M, Green M A, Qiu Y M, Luo J L and Wu M M 2013 Chin. Phys. Lett. 30 027402
[15] Yan X W, Gao M, Lu Z Y and Xiang T 2011 Phys. Rev. B 83 233205
[16] Ignatov A, Kumar A, Lubik P, Yuan R H, Guo W T, Wang N L, Rabe K and Blumberg G 2012 Phys. Rev. B 86 134107 |
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