Josephson-vortex-flow terahertz emission in layered high-Tc superconducting single crystals.

نویسندگان

  • Myung-Ho Bae
  • Hu-Jong Lee
  • Jae-Hyun Choi
چکیده

We report on the successful terahertz emission (0.6-1 THz) that is continuous and tunable in its frequency and power, by driving Josephson vortices in resonance with the collective standing Josephson plasma modes excited in stacked Bi2Sr2CaCu2O8+x intrinsic Josephson junctions. Shapiro-step detection was employed to confirm the terahertz-wave emission. Our results provide a strong feasibility of developing long-sought solid-state terahertz-wave emission devices.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Anomalous Fluxon Properties of Layered Superconductors

Highly anisotropic layered superconductors can be considered as stacks of Josephson junctions (SJJ’s) [1, 2]. The key feature of SJJ’s is mutual coupling of junctions, which can be achieved via magnetic [3, 4], charging [5, 6] or nonequilibrium [7] coupling mechanisms. Properties of SJJ’s can be qualitatively different from that of single Josephson junctions (JJ’s) or anisotropic type-II superc...

متن کامل

Periodic vortex lattices for the Lawrence–Doniach model of layered superconductors in a parallel field

We consider the Lawrence–Doniach model for layered superconductors, in which stacks of parallel superconducting planes are coupled via the Josephson effect. We assume that the superconductor is placed in an external magnetic field oriented parallel to the superconducting planes and study periodic lattice configurations in the limit as the Josephson coupling parameter r → 0. This limit leads to ...

متن کامل

C-axis Josephson Plasma Resonance Observed in Tl2Ba2CaCu2O8 Superconducting Thin Films using Terahertz Time-Domain Spectroscopy

We have unambiguously observed the c-axis Josephson Plasma Resonance (JPR) in high-Tc cuprate Tl2Ba2CaCu2O8 superconducting thin films employing terahertz time-domain spectroscopy in transmission as a function of temperature in zero magnetic field. These are the first measurements of the JPR temperature dependence of a high-Tc material in transmission. With increasing temperature, the JPR shift...

متن کامل

Chemically Induced Nanoscale Josephson Effects in Non-stoichiometric High-tc Superconductors

Both granular superconductors and artificially prepared arrays of Josephson junctions (JJAs) proved useful in studying the numerous quantum (charging) effects in these interesting systems, including blockade of Cooper pair tunneling [1], Bloch oscillations [2], propagation of quantum ballistic vortices [3], spin-tunneling related effects using specially designed SFS-type junctions [4, 5], novel...

متن کامل

Terahertz-wave emission from Bi2212 intrinsic Josephson junctions: a review on recent progress

Emission of terahertz (THz) electromagnetic (EM) waves from a high critical temperature (Tc) superconductor intrinsic Josephson junction (IJJ) is a new and promising candidate for practical applications of superconducting devices. From the engineering viewpoint, the IJJ THz source is competitive against the present semiconducting THz sources such as quantum cascade lasers (QCLs) and resonance t...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Physical review letters

دوره 98 2  شماره 

صفحات  -

تاریخ انتشار 2007