Evaluation of evidence for magnetic polarons in EuB6 -: art. no. 092408

被引：21
|
作者：
Calderón, MJ
Wegener, LGL
Littlewood, PB
机构：
[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England
[2] Los Alamos Natl Lab, Natl High Magnet Field Lab, Pulsed Field Facil, Los Alamos, NM 87545 USA
来源：
PHYSICAL REVIEW B | 2004年 / 70卷 / 09期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1103/PhysRevB.70.092408
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Spin flip Raman scattering measurements on the semi-metal EuB6 show the appearance of a Stokes' shift above the ferromagnetic critical temperature. This has been interpreted as arising from the formation of magnetic polarons. However, this data contains a previously unremarked puzzle, in that the energy scale turns out to be considerable lower than expected based on reliable estimates of the exchange interaction mediated by electrons. We propose the Stokes' shift is due to the much smaller on-site coupling of holes with the local spins.
引用
收藏
页码：092408 / 1
页数：4
相关论文
共 50 条
  • [41] MAGNETIC PROPERTIES OF CEB6, PRB6, EUB6, AND GDB6
    HACKER, H
    SHIMADA, Y
    CHUNG, KS
    PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1971, 4 (02): : 459 - &
  • [42] Magnetic polarons in weakly doped high-Tc superconductors -: art. no. 064521
    Hankiewicz, EM
    Buczko, R
    Wilamowski, Z
    PHYSICAL REVIEW B, 2002, 66 (06) : 645211 - 645219
  • [43] Magnetic field effect on the polarizability of bound polarons in quantum nanocrystallites -: art. no. 235313
    Feddi, E
    El Haouari, M
    Assaid, E
    Stébé, B
    El Khamkhami, J
    Dujardin, F
    PHYSICAL REVIEW B, 2003, 68 (23):
  • [44] A huge renormalization of transport effective mass in the magnetic-polaronic state of EuB6
    Glushkov, V.
    Bogach, A.
    Demishev, S.
    Gon'kov, K.
    Ignatov, M.
    Khayrullin, Eu.
    Samarin, N.
    Shubin, A.
    Shitsevalova, N.
    Flachbart, K.
    Sluchanko, N.
    PHYSICA B-CONDENSED MATTER, 2008, 403 (5-9) : 820 - 821
  • [45] Anomalous specific heat and its field dependence in the magnetic polaron system:: EuB6
    Kim, Beom Hyun
    Yu, Unjong
    Kim, Joong-Bae
    Min, B. I.
    JOURNAL OF APPLIED PHYSICS, 2007, 101 (09)
  • [46] Evidence for light-induced hole polarons in LiNbO3 -: art. no. 067404
    Herth, P
    Granzow, T
    Schaniel, D
    Woike, T
    Imlau, M
    Krätzig, E
    PHYSICAL REVIEW LETTERS, 2005, 95 (06)
  • [47] Classical polarons in a constant electric field -: art. no. 245203
    Meinert, G
    Bányai, L
    Gartner, P
    PHYSICAL REVIEW B, 2001, 63 (24):
  • [48] Large negative magnetoresistance in the hydride halides GdI2Hx:: A system with competing magnetic interactions -: art. no. 092408
    Ryazanov, M
    Simon, A
    Kremer, RK
    Mattausch, H
    PHYSICAL REVIEW B, 2005, 72 (09):
  • [49] Magnetic field-induced topological phase transition for colossal negative magnetoresistance in EuB6
    Pan, Lulu
    Wang, Yunhao
    Ding, Xiang
    Hu, Guojing
    Guo, Hui
    Lv, Senhao
    Xian, Guoyu
    Qi, Qi
    Zhu, Ke
    Han, Yechao
    Lei, Minyinan
    Li, Zhuolin
    Bao, Lihong
    Zhang, Ying
    Lin, Xiao
    Zhu, Shiyu
    Peng, Rui
    Yang, Haitao
    Gao, Hong-Jun
    APPLIED PHYSICS LETTERS, 2024, 125 (24)
  • [50] The magnetocaloric, magnetic, optical, and thermoelectric properties of EuB6 compound: DFT and Monte Carlo study
    Benyoussef, Safae
    Jabar, Abderrahim
    Bahmad, Lahoucine
    JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2024, 107 (02) : 945 - 955
12345