Zobrazeno 1 - 10
of 188
pro vyhledávání: '"Tachiki, Masashi"'
Publikováno v:
Phys. Rev. B 81, 174531 (2010)
We propose a mechanism of coherent emission from driven vortices in stacked intrinsic Josephson junctions. In contrast to super-radiance, which occurs only for highly ordered vortex lattices, we predict resonant radiation emission from weakly correla
Externí odkaz:
http://arxiv.org/abs/1206.0989
Autor:
Tsujimoto, Manabu, Yamamoto, Takashi, Delfanazari, Kaveh, Nakayama, Ryo, Kitamura, Takeo, Sawamura, Masashi, Kashiwagi, Takanari, Minami, Hidetoshi, Tachiki, Masashi, Kadowaki, Kazuo, Klemm, Richard A.
Continuous, coherent sub-terahertz radiation arises when a dc voltage is applied across a stack of the many intrinsic Josephson junctions in a Bi2Sr2CaCu2O8+d single crystal. The active junctions produce an equal number of I-V characteristic branches
Externí odkaz:
http://arxiv.org/abs/1201.1558
Publikováno v:
Phys. Rev. B 83, 220513(R) (2011)
We report on the observation of bulk superconductivity from dc magnetization measurements in a cylindrical single crystal of CuxBi2Se3. The magnitude of the magnetization in the Meissner state is very small and the magnetic-field dependence of the ma
Externí odkaz:
http://arxiv.org/abs/1106.4405
Autor:
Tsujimoto, Manabu, Yamaki, Kazuhiro, Deguchi, Kota, Yamamoto, Takashi, Kashiwagi, Takanari, Minami, Hidetoshi, Tachiki, Masashi, Kadowaki, Kazuo, Klemm, Richard A.
Subterahertz radiation emitted from a variety of short rectangular-, square-, and disk-shaped mesas of intrinsic Josephson junctions fabricated from a Bi2Sr2CaCu2O8+d single crystal was studied from the observed I-V characteristics, far-infrared spec
Externí odkaz:
http://arxiv.org/abs/1007.0651
Autor:
Kadowaki, Kazuo, Tsujimoto, Manabu, Yamaki, Kazuhiro, Yamamoto, Takashi, Kashiwagi, Takanari, Minami, Hidetoshi, Tachiki, Masashi, Klemm, Richard A.
The THz radiation emitted from rectangular mesas of single-crystal $\mathrm{Bi_2Sr_2CaCu_2O_{8+\delta}}$ was studied using angular distribution measurements and Fourier transform infrared spectroscopy. Unlike the recent theoretical predictions, the r
Externí odkaz:
http://arxiv.org/abs/0912.3063
We reply to the comment [arXiv:0903.5110] on our paper "Mechanism of Terahertz Electromagnetic Emission from Intrinsic Josephson Junctions" [arXiv:0810.5268].
Externí odkaz:
http://arxiv.org/abs/0907.1770
Using a 3-D parallelepiped model of intrinsic Josephson junctions, we calculate the cavity resonance modes of Josephson plasma waves excited by external electric currents. The electromagnetic (EM) wave of the excited Josephson plasma is converted to
Externí odkaz:
http://arxiv.org/abs/0810.5268
Publikováno v:
Phys. Rev. B 77, 014507 (2008)
Solving coupled nonlinear sine-Gordon equations and Maxwell equations numerically, we study the electromagnetic and superconducting properties of the single crystal of high-$T_c$ superconductor $\rm{Bi_2Sr_2CaCu_2O_{8+\delta}}$ with a static magnetic
Externí odkaz:
http://arxiv.org/abs/0709.0580
Autor:
Takano, Yoshihiko, Nagao, Masanori, Takenouchi, Tomohiro, Umezawa, Hitoshi, Sakaguchi, Isao, Tachiki, Masashi, Kawarada, Hiroshi
Publikováno v:
Diamond & Related Materials 14 (2005) 1936 -- 1938
Superconductivity was discovered in heavily boron-doped diamond thin films deposited by the microwave plasma assisted chemical vapor deposition (MPCVD) method. Advantages of the MPCVD deposited diamond are the controllability of boron concentration i
Externí odkaz:
http://arxiv.org/abs/cond-mat/0507476
Autor:
Umezawa, Hitoshi, Takenouchi, Tomohiro, Takano, Yoshihiko, Kobayashi, Kensaku, Nagao, Masanori, Sakaguchi, Isao, Tachiki, Minoru, Hatano, Takeshi, Zhong, Guofang, Tachiki, Masashi, Kawarada, Hiroshi
The superconductivity transition temperatures Tc(onset) of 11.4 K and Tc(offset) of 7.4 K, which are the highest in diamond at present, are realized on homoepitaxially grown (111) diamond films with a high boron doping concentration of 8.4E21 cm-3 (4
Externí odkaz:
http://arxiv.org/abs/cond-mat/0503303