Nature of conduction in disordered Nd2-xCexCuO4-δ films -: art. no. 014538

被引：15
|
作者：
Woods, SI [1 ]
Katz, AS
Applebaum, SI
de Andrade, MC
Maple, MB
Dynes, RC
机构：
[1] IBM Corp, Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA
[2] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA
来源：
PHYSICAL REVIEW B | 2002年 / 66卷 / 01期
关键词：
D O I：
10.1103/PhysRevB.66.014538
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We have used resistivity and Hall measurements on ion-irradiated thin films of the cuprate superconductor Nd2-xCexCuO4-delta (NCCO) to explore the full range of transport behavior as a function of disorder in this material from superconductivity to variable-range-hopping (VRH) conduction. The cotangent of the Hall angle (cot Theta(H)) in lightly irradiated samples exhibited a temperature dependence related to that of resistivity, providing support for a recent theory of Varma and Abrahams. The most highly irradiated samples exhibited rho(T)proportional toexp[(T-o/T)(0.5)] at low temperatures, evidence of VRH in the presence of a Coulomb gap. The change of the Hall number with disorder and temperature is analyzed in the framework of possible two-carrier conduction in NCCO.
引用
收藏
页码：1 / 4
页数：4
相关论文
共 50 条
  • [21] Role of oxygen nonstoichiometry and the reduction process on the local structure of Nd2-xCexCuO4±δ -: art. no. 064513
    Richard, P
    Riou, G
    Hetel, I
    Jandl, S
    Poirier, M
    Fournier, P
    PHYSICAL REVIEW B, 2004, 70 (06): : 064513 - 1
  • [22] Nonmonotonic dx2-y2 superconducting order parameter in Nd2-xCexCuO4 -: art. no. 107002
    Blumberg, G
    Koitzsch, A
    Gozar, A
    Dennis, BS
    Kendziora, CA
    Fournier, P
    Greene, RL
    PHYSICAL REVIEW LETTERS, 2002, 88 (10)
  • [23] Effect of nonstoichiometric disorder on the Hall coefficient in electron-doped Nd2-xCexCuO4-δ single crystal films
    Charikova, T. B.
    Shelushinina, N. G.
    Harus, G. I.
    Karskanov, I. V.
    Sochinskaya, O. E.
    Ivanov, A. A.
    PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2010, 470 : S221 - S222
  • [24] Tunneling into the normal state of Pr2-xCexCuO4 -: art. no. 187003
    Dagan, Y
    Qazilbash, MM
    Greene, RL
    PHYSICAL REVIEW LETTERS, 2005, 94 (18)
  • [25] Dependence of critical temperature on doping and oxygen reduction in Nd2-xCexCuO4-δ superconductor
    Yayeh, Zewdie
    Kahsay, Gebregziabher
    Negussie, Tamiru
    Ketema, Ababay
    NANO SELECT, 2024, 5 (05):
  • [26] Double-well potential for oxygen ion vibrations in Nd2-xCexCuO4-δ
    Menushenkov, A. P.
    Chernikov, R. V.
    Ivanov, A. A.
    Sidorov, V. V.
    Klementiev, K. V.
    14TH INTERNATIONAL CONFERENCE ON X-RAY ABSORPTION FINE STRUCTURE (XAFS14), PROCEEDINGS, 2009, 190
  • [27] Effect of Ce doping and oxygen content on pseudogap and anisotropy in Nd2-xCexCuO4-δ
    Wang, CH
    Wang, GY
    Song, HB
    Feng, Z
    Li, SY
    Chen, XH
    SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2005, 18 (05): : 763 - 769
  • [28] Comment on "Nonmonotonic dx2-y2 superconducting order parameter in Nd2-xCexCuO4" -: art. no. 149701
    Venturini, F
    Hackl, R
    Michelucci, U
    PHYSICAL REVIEW LETTERS, 2003, 90 (14)
  • [29] On the nature of ionic liquid gating of Nd2-xCexCuO4 thin films
    Atesci, Hasan
    Coneri, Francesco
    Leeuwenhoek, Maarten
    Hilgenkamp, Hans
    van Ruitenbeek, Jan M.
    LOW TEMPERATURE PHYSICS, 2017, 43 (02) : 290 - 295
  • [30] Infrared signature of the superconducting state in Pr2-xCexCuO4 -: art. no. 132502
    Zimmers, A
    Lobo, RPSM
    Bontemps, N
    Homes, CC
    Barr, MC
    Dagan, Y
    Greene, RL
    PHYSICAL REVIEW B, 2004, 70 (13) : 132502 - 1
12345