Switching of intra-orbital spin excitations in electron-doped iron pnictide superconductors

被引：25

作者：

Iimura, Soshi ^{[1
]}

Matsuishi, Satoru ^{[2
]}

Miyakawa, Masashi ^{[3
]}

Taniguchi, Takashi ^{[4
]}

Suzuki, Katsuhiro ^{[5
]}

Usui, Hidetomo ^{[5
]}

Kuroki, Kazuhiko ^{[6
]}

Kajimoto, Ryoichi ^{[7
]}

Nakamura, Mitsutaka ^{[8
]}

Inamura, Yasuhiro ^{[8
]}

Ikeuchi, Kazuhiko ^{[7
]}

Ji, Sungdae ^{[7
]}

Hosono, Hideo ^{[1
,9
]}

机构：

[1] Tokyo Inst Technol, Mat & Struct Lab, Midori Ku, Yokohama, Kanagawa 2268503, Japan

[2] Tokyo Inst Technol, Mat Res Ctr Element Strategy, Midori Ku, Yokohama, Kanagawa 2268503, Japan

[3] Natl Inst Mat Sci, Superconducting Properties Unit, Tsukuba, Ibaraki 3050044, Japan

[4] Natl Inst Mat Sci, Mat Proc Unit, Tsukuba, Ibaraki 3050044, Japan

[5] Univ Electrocommun, Dept Engn Sci, Tokyo 1828585, Japan

[6] Osaka Univ, Dept Phys, Osaka 5600043, Japan

[7] CROSS, Res Ctr Neutron Sci & Technol, Ibaraki 3191106, Japan

[8] Japan Atom Energy Agcy, J PARC Ctr, Ibaraki 3191195, Japan

[9] Tokyo Inst Technol, Frontier Res Ctr, Midori Ku, Yokohama, Kanagawa 2268503, Japan

来源：

PHYSICAL REVIEW B | 2013年 / 88卷 / 06期

基金：

日本学术振兴会;

关键词：

D O I：

10.1103/PhysRevB.88.060501

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigate the doping dependence of the magnetic excitations in the two-superconducting-dome system LaFeAsO1-xDx. Using inelastic neutron scattering, spin fluctuations at different wave numbers were observed under both superconducting domes around x = 0.1 and 0.4 but vanished at x = 0.2 corresponding to the T-c valley. Theoretical calculations indicate that the characteristic doping dependence of the spin fluctuations is rationally explained as a consequence of the switching of the two intra-orbital nestings within Fe-3d(YZ, ZX) and Fe-3d(X2-Y2) by electron doping. The present results imply that the multiorbital nature plays an important role in the doping and/or material dependence of the T-c of the iron pnictide superconductors.

引用

页数：5

共 50 条

[21] Spin excitation spectra of iron pnictide superconductors
Li, Zezhong
Hong, Wenshan
Xie, Tao
Liu, Chang
Luo, Huiqian
ACTA PHYSICA SINICA, 2025, 74 (01)
[22] Possible superconductivity in the electron-doped chromium pnictide LaOCrAs
Wang, Wan-Sheng
Gao, Miao
Yang, Yang
Xiang, Yuan-Yuan
Wang, Qiang-Hua
PHYSICAL REVIEW B, 2017, 95 (14)
[23] Spin fluctuation spectrum of electron-doped high-Tc superconductors
Mutou, Tetsuya
Hirashima, Dai S.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2011, 72 (05) : 350 - 353
[24] Magnetic resonance in the spin excitation spectrum of electron-doped cuprate superconductors
Ismer, J.-P.
Eremin, Ilya
Rossi, Enrico
Morr, Dirk K.
PHYSICAL REVIEW LETTERS, 2007, 99 (04)
[25] Two-dome structure in electron-doped iron arsenide superconductors
Iimura, Soshi
Matuishi, Satoru
Sato, Hikaru
Hanna, Taku
Muraba, Yoshinori
Kim, Sung Wng
Kim, Jung Eun
Takata, Masaki
Hosono, Hideo
NATURE COMMUNICATIONS, 2012, 3
[26] Two-dome structure in electron-doped iron arsenide superconductors
Soshi Iimura
Satoru Matsuishi
Hikaru Sato
Taku Hanna
Yoshinori Muraba
Sung Wng Kim
Jung Eun Kim
Masaki Takata
Hideo Hosono
Nature Communications, 3
[27] Three-dimensional collective charge excitations in electron-doped copper oxide superconductors
M. Hepting
L. Chaix
E. W. Huang
R. Fumagalli
Y. Y. Peng
B. Moritz
K. Kummer
N. B. Brookes
W. C. Lee
M. Hashimoto
T. Sarkar
J.-F. He
C. R. Rotundu
Y. S. Lee
R. L. Greene
L. Braicovich
G. Ghiringhelli
Z. X. Shen
T. P. Devereaux
W. S. Lee
Nature, 2018, 563 : 374 - 378
[28] Three-dimensional collective charge excitations in electron-doped copper oxide superconductors
Hepting, M.
Chaix, L.
Huang, E. W.
Fumagalli, R.
Peng, Y. Y.
Moritz, B.
Kummer, K.
Brookes, N. B.
Lee, W. C.
Hashimoto, M.
Sarkar, T.
He, J-F
Rotundu, C. R.
Lee, Y. S.
Greene, R. L.
Braicovich, L.
Ghiringhelli, G.
Shen, Z. X.
Devereaux, T. P.
Lee, W. S.
NATURE, 2018, 563 (7731) : 374 - +
[29] Superconductivity by hidden spin fluctuations in electron-doped iron selenide
Rodriguez, J. P.
PHYSICAL REVIEW B, 2021, 103 (18)
[30] Resonant inelastic x-ray scattering probes spin excitations in iron-pnictide superconductors
不详
MRS BULLETIN, 2013, 38 (05) : 360 - 361

← 1 2 3 4 5 →