| CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
|
|
|
|
Magnetoresistance in Parent Pnictide AFe2As2(A=Sr, Ba) |
| ZHENG Ping, CHEN Gen-Fu, LI Zheng, HU Wan-Zheng, DONG Jing, LI Gang, WANG Nan-Lin, LUO Jian-Lin |
| Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 |
|
| Cite this article: |
|
ZHENG Ping, CHEN Gen-Fu, LI Zheng et al 2009 Chin. Phys. Lett. 26 107401 |
|
|
|
|
Abstract Magnetoresistances of SrFe2As2 and BaFe2As2 in the magnetic ordered state are studied. Positive magnetoresistance is observed in the magnetic fields H applied in the azimuthes of θta = 0°and 30° with respect to the c-axis. The magnetoresistance can reach 20% for SrFe2As2 and 12% for BaFe2As2 at H = 9 T with θ= 0°(H || c). Above the magnetic transition temperature, the magnetoresistance becomes negligible. The data in the magnetic ordered state could be described by a modified two-band galvanomagnetic model including the enhancement effect of the applied magnetic field on the spin-density-wave gap. The field enhanced spin-density-wave gaps for different types of carriers are different. Temperature dependencies of the fitting parameters are discussed.
|
| Keywords:
74.70.Dd
72.15.Gd
72.20.My
|
|
|
Received: 22 April 2009
Published: 27 September 2009
|
|
| PACS: |
74.70.Dd
|
(Ternary, quaternary, and multinary compounds)
|
| |
72.15.Gd
|
(Galvanomagnetic and other magnetotransport effects)
|
| |
72.20.My
|
(Galvanomagnetic and other magnetotransport effects)
|
|
|
|
|
|
[1] Kamihara Y, Watanabe T, Hirano M and Hosono H 2008 J.Am. Chem. Soc. {\bf 130 3296
[2] Chen G F, Li Z, Wu D, Li G, Hu W Z, Dong J, Zheng P, Luo JL and Wang N L 2008 Phys. Rev. Lett. {\bf 100 247002
[3] Chen X H, Wu T, Wu G, Liu R H, Chen H and Fang D F2008 Nature {\bf 453 761
[4] Wang C, Li L J, Chi S, Zhu Z W, Ren Z, Li Y K, Wang Y T,Lin X, Luo Y K, Xu X F, Cao G H and Xu Z A arXiv:0804.4290
[5] Ren Z A, Yang J, Lu W, Yi W, Shen X L, Li Z C, Che G C,Dong X L, Sun L L, Zhou F and Zhao Z X 2008 Europhys. Lett.{\bf 82 57002
[6] Li Y K, Lin X, Tao Q, Chen H, Wang C, Li L J, Luo Y K, HeM, Zhu Z W, Cao G H and Xu Z A 2009 Chin. Phys. Lett. {\bf 26017402
[7] Mu G, Zhu X Y, Fang L, Shan L, Ren C and Wen H H 2008 Chin. Phys. Lett. {\bf 25 2221
[8] Dong J, Zhang H J, Xu G, Li Z, Li G, Hu W Z, Wu D, Chen GF, Dai X, Luo J L, Fang Z and Wang N L 2008 Europhys. Lett.{\bf 83 27006
[9] Cruz C de la, Huang Q, Lynn J W, Li J, Ii W R, Zarestky JL, Mook H A, Chen G F, Luo J L, Wang N L and Dai P 2008 Nature {\bf 453 899
[10] Rotter M, Tegel M and Johrendt D 2008 Phys. Rev.Lett. {\bf 101 107006
[11] Chen G F, Li Z, Li G, Hu W Z, Dong J, Zheng P, Wang N Land Luo J L 2008 Chin. Phys. Lett. {\bf 25 3403
[12] Ma F J, Lu Z Y and Xiang T arXiv:0806.3526 Xu G, Zhang HJ, Dai X and Fang Z 2008 Europhys. Lett. {\bf 84 67015
[13] Liu H Y, Zhang W T, Zhao L, Jia X W, Meng J Q, Liu G D,Dong X L, Chen G F, Luo J L, Wang N L, Lu W, Wang G L, Zhou Y, ZhuY, Wang X Y, Zhao Z X, Xu Z Y, Chen C T and Zhou X J 2008 Phys.Rev. B {\bf 78 184514
[14] Mazin I I, Johannes M D, Boeri L, Koepernik K and Singh DJ 2008 Phys. Rev. B {\bf 78 085104
[15] Hu W Z, Dong J, Li G, Li Z, Zheng P, Chen G F, Luo J Land Wang N L 2008 Phys. Rev. Lett. {\bf 101 257005
[16] Coldea A I, Fletcher J D, Carrington A, Analytis J G,Bangura A F, Chu J H, Erickson A S, Fisher I R, Hussey N E andMcDonald R D 2008 Phys. Rev. Lett. {\bf 101 216402
[17] Sebastian S E, Gillett J, Harrison N, Lau P H C, Singh DJ, Mielke C H and Lonzarich G G 2008 J. Phys.: Condens. Matter{\bf 20 422203
[18] Ishikado M, Kajimoto R, Shamoto S, Arai M, Iyo A,Miyazawa K, Shirage P M, Kito H, Eisaki H, Kim S, Hosono H, Guidi T,Bewley R and Bennington S M arXiv:0809.5128
[19] Hsieh D, Xia Y, Wray L, Qian D, Gomes K K, Yazdani A,Chen G F, Luo J L, Wang N L and Hasan M Z arXiv:0812.2289
[20] Yildirim T 2008 Phys. Rev. Lett. {\bf 101 057010
[21] Balseiro A and Falicov L M 1986 Phys. Rev. Lett.{\bf 55 2336
[22] Huang Q, Qiu Y, Bao W, Lynn J W, Green M A, Gasparovic YC, Wu T, Wu G and Chen X H 2008 Phys. Rev. Lett. {\bf 101257003
[23] Zhao J, Ratcliff W I$\!$I, Lynn J W, Chen G F, Luo J L,Wang N L, Hu J P and Dai P C 2008 Phys. Rev. B {\bf 78 140504
[24] Chen G F, Li Z et al 2008 Phys. Rev. B {\bf 78224512
[25] Nekrasov I A et al 2008 Phys. Rev. B {\bf 78094511 Xie W H, Bao M L, Zhao Z J and Liu B G arXiv:0808.3460
[26] Noto K and Tsuzuku T 1975 Jpn. J. Appl. Phys. {\bf14 46
[27] Ishiguro T and Yamaji K 1990 OrganicSuperconductors (Berlin: Springer)
[28] Tian M L, Yue S and Zhang Y 2002 Phys. Rev. B {\bf65 104421
[29] Shen J Q et al 2003 J. Phys.: Condens. Matter {\bf15 5353
[30] Ni N, Budko S L et al 2008 Phys. Rev. B {\bf 78014507 |
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
