An effect of temperature distribution on terahertz phase dynamics in intrinsic Josephson junctions

被引：3
|
作者：
Asai, Hidehiro [1 ]
Kawabata, Shiro [1 ]
机构：
[1] Natl Inst Adv Ind Sci & Technol, Elect & Photon Res Inst ESPRIT, Tsukuba, Ibaraki 3058568, Japan
来源：
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 2013年 / 494卷
关键词：
Intrinsic Josephson junctions; THz emission; Hot spot; SUPERCONDUCTORS; EMISSION;
D O I：
10.1016/j.physc.2013.04.058
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In this study, we numerically calculate the temperature distribution and the THz phase dynamics in the mesa-structured intrinsic Josephson junctions (IJJs) using the thermal diffusion equation and the Sine-Gordon equation. We observe that the temperature distribution has a broad peak around the center region of the IJJ mesa. Under a high external current, a "hot spot" where the temperature is locally higher than the superconducting critical temperature appears around this region. The transverse Josephson plasma wave is strongly excited by the inhomogeneous temperature distribution in the mesa. This gives rise to intense THz emission. (C) 2013 Elsevier B. V. All rights reserved.
引用
收藏
页码：121 / 123
页数：3
相关论文
共 50 条
  • [1] Possible ways to synchronize phase dynamics in intrinsic Josephson junctions for terahertz radiation
    Liu, Feng
    Hu, Xiao
    [J]. INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2015, 29 (25-26):
  • [2] Phase dynamics in intrinsic Josephson junctions and their electrodynamics
    Lin, Shizeng
    Hu, Xiao
    [J]. PHYSICAL REVIEW B, 2009, 79 (10)
  • [3] Phase dynamics in a stack of inductively coupled intrinsic Josephson junctions and terahertz electromagnetic radiation
    Hu, Xiao
    Lin, Shi-Zeng
    [J]. SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2010, 23 (05):
  • [4] Terahertz wave emission and phase motion in intrinsic Josephson junctions
    Matsumoto, H.
    Koyama, T.
    Machida, M.
    [J]. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2010, 470 (20): : 1485 - 1488
  • [5] Charge and phase dynamics in a stack of intrinsic Josephson junctions
    Koyama, T
    [J]. HIGHLIGHTS IN CONDENSED MATTER PHYSICS, 2003, 695 : 152 - 163
  • [6] Effect of thermal fluctuations on Josephson vortex dynamics in intrinsic Josephson junctions
    Irie, A.
    Oya, G.
    [J]. SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2007, 20 (02): : S18 - S22
  • [7] Terahertz Radiations and Switching Phenomena of Intrinsic Josephson Junctions in High-Temperature Superconductors: Josephson Phase Dynamics in Long- and Short-Ranged Interactions
    Kakeya, Itsuhiro
    [J]. IEICE Transactions on Electronics, 2023, E106.C (06): : 272 - 280
  • [8] Terahertz Radiations and Switching Phenomena of Intrinsic Josephson Junctions in High-Temperature Superconductors: Josephson Phase Dynamics in Long- and Short-Ranged Interactions
    Kakeya, Itsuhiro
    [J]. IEICE TRANSACTIONS ON ELECTRONICS, 2023, E106C (06) : 272 - 280
  • [9] In-phase electrodynamics and terahertz wave emission in extended intrinsic Josephson junctions
    Koyama, Tomio
    Matsumoto, Hideki
    Machida, Masahiko
    Kadowaki, Kazuo
    [J]. PHYSICAL REVIEW B, 2009, 79 (10):
  • [10] Josephson-vortex dynamics in intrinsic Josephson junctions
    Hirata, Kazuto
    Ooi, Shuuichi
    Mochiku, Takashi
    Gaifullin, Marat
    [J]. PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 2007, 460 : 764 - 765
12345