Large Temperature Dependence of the Number of Carriers in Co-Doped BaFe2As2

被引：62

作者：

Brouet, V. ^{[1
]}

Lin, Ping-Hui ^{[1
]}

Texier, Y. ^{[1
]}

Bobroff, J. ^{[1
]}

Taleb-Ibrahimi, A. ^{[2
]}

Le Fevre, P. ^{[2
]}

Bertran, F. ^{[2
]}

Casula, M. ^{[3
]}

Werner, P. ^{[4
]}

Biermann, S. ^{[5
]}

Rullier-Albenque, F. ^{[6
]}

Forget, A. ^{[6
]}

Colson, D. ^{[6
]}

机构：

[1] Univ Paris 11, Phys Solides Lab, UMR 8502, F-91405 Orsay, France

[2] Synchrotron SOLEIL, F-91192 Gif Sur Yvette, France

[3] Univ Paris 06, CNRS, Inst Mineral & Phys Milieux Condenses, F-75252 Paris, France

[4] Univ Fribourg, Dept Phys, CH-1700 Fribourg, Switzerland

[5] Ecole Polytech, Ctr Phys Theor, UMR 7644, F-91128 Palaiseau, France

[6] CEA Saclay, CNRS URA 2464, Serv Phys Etat Condense, F-91191 Gif Sur Yvette, France

来源：

PHYSICAL REVIEW LETTERS | 2013年 / 110卷 / 16期

关键词：

26;

D O I：

10.1103/PhysRevLett.110.167002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using angle-resolved photoemission spectroscopy, we study the evolution of the number of carriers in Ba(Fe1-xCox)(2)As-2 as a function of Co content and temperature. We show that there is a k-dependent energy shift compared to density functional calculations, which is large below 100 K at low Co contents and reduces the volume of hole and electron pockets by a factor 2. This k shift becomes negligible at high Co content and could be due to interband charge or spin fluctuations. We further reveal that the bands shift with temperature, changing significantly the number of carriers they contain (up to 50%). We explain this evolution by thermal excitations of carriers among the narrow bands, possibly combined with a temperature evolution of the k-dependent fluctuations. DOI: 10.1103/PhysRevLett.110.167002

引用

页数：5

共 50 条

[21] Precision microwave electrodynamic measurements of K- and Co-doped BaFe2As2
Bobowski, J. S.
Baglo, J. C.
Day, James
Dosanjh, P.
Ofer, Rinat
Ramshaw, B. J.
Liang, Ruixing
Bonn, D. A.
Hardy, W. N.
Luo, Huiqian
Wang, Zhao-Sheng
Fang, Lei
Wen, Hai-Hu
PHYSICAL REVIEW B, 2010, 82 (09):
[22] Study of the structure of a superconducting state of Co-doped BaFe2As2 multiband compounds
Karakozov, A. E.
Gorshunov, B. P.
Ponomarev, Ya. G.
Prokhorov, A. S.
Nozdrin, V. S.
Magnitskaya, M. V.
Zhukova, E. S.
Iida, K.
Dressel, M.
Zapf, S.
Haindl, S.
JETP LETTERS, 2014, 100 (05) : 328 - 335
[23] Study of the structure of a superconducting state of Co-doped BaFe2As2 multiband compounds
A. E. Karakozov
B. P. Gorshunov
Ya. G. Ponomarev
A. S. Prokhorov
V. S. Nozdrin
M. V. Magnitskaya
E. S. Zhukova
K. Iida
M. Dressel
S. Zapf
S. Haindl
JETP Letters, 2014, 100 : 328 - 335
[24] H+ irradiation effect in Co-doped BaFe2As2 single crystals
Nakajima, Y.
Tsuchiya, Y.
Taen, T.
Tamegai, T.
Kitamura, H.
Murakami, T.
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2011, 471 (21-22): : 647 - 650
[25] Anisotropy of the Upper Critical Field in a Co-Doped BaFe2As2 Single Crystal
Kano, Mika
Kohama, Yoshimitsu
Graf, David
Balakirev, Fedor
Sefat, Athena S.
Mcguire, Michael A.
Sales, Brian C.
Mandrus, David
Tozer, Stanley W.
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2009, 78 (08)
[26] Photoinduced excited-state dynamics in Co-doped BaFe2As2 superconducting films
Kolodka, Roman
Bartenev, Alexander
Eom, Ki-Tae
Kang, Jong-Hoon
Hellstrom, Eric E.
Eom, Chang-Beom
Rua, Armando
Lysenko, Sergiy
MRS ADVANCES, 2023, 8 (05) : 161 - 166
[27] One-dimensional pinning behavior in Co-doped BaFe2As2 thin films
Mishev, V.
Seeboeck, W.
Eisterer, M.
Iida, K.
Kurth, F.
Haenisch, J.
Reich, E.
Holzapfel, B.
APPLIED PHYSICS LETTERS, 2013, 103 (23)
[28] Temperature dependence of the paramagnetic spin excitations in BaFe2As2
Harriger, Leland W.
Liu, Mengshu
Luo, Huiqian
Ewings, R. A.
Frost, C. D.
Perring, T. G.
Dai, Pengcheng
PHYSICAL REVIEW B, 2012, 86 (14):
[29] Influence of Fe Buffer Layer on Co-Doped BaFe2As2 Superconducting Thin Films
Bonavolonta, C.
de Lisio, C.
Valentino, M.
Laviano, F.
Pepe, G. P.
Kurth, F.
Iida, K.
Ichinose, A.
Tsukada, I.
ADVANCES IN CONDENSED MATTER PHYSICS, 2015, 2015
[30] Critical current density and vortex dynamics in uranium irradiated Co-doped BaFe2As2
Yagyuda, H.
Nakajima, Y.
Tamegai, T.
Kanai, Y.
Kambara, T.
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2011, 471 (21-22): : 790 - 793

← 1 2 3 4 5 →