145 citations · 564 across the 13 of their papers we have counts for
13 papers
Terahertz source-on-a-chip with decade-long stability using layered superconductor elliptical microcavities
Mingqi Zhang, Shungo Nakagawa, Yuki Enomoto +8
Coherent, continuous-wave, and electrically tunable chip-scale terahertz (THz) sources are critical for emerging applications in sensing, imaging, spectroscopy, communication, spac…
Single-Crystal Growth and Characterization of Cuprate Superconductor (Hg,Re)BaCaCuO
Yutaro Mino, Shigeyuki Ishida, Junichiro Kato +8
We grew (Hg,Re)BaCaCuO ((Hg,Re)1223) single crystals with good reproducibility via the single-step flux method using monoxides as raw materials. A double-sealin…
Terahertz imaging system with on-chip superconducting Josephson plasma emitters for nondestructive testing
Manabu Tsujimoto, Kaveh Delfanazari, Takanari Kashiwagi +2
Compared with adjacent microwaves and infrared frequencies, terahertz (THz) frequency offers numerous advantages for imaging applications. The unique THz spectral signatures of che…
Attractive interaction between superconducting vortices in tilted magnetic fields
Alexandre Correa, Federico Mompean, Isabel Guillamon +8
Many practical applications of high T superconductors involve layered materials and magnetic fields applied on an arbitrary direction with respect to the layers. When the aniso…
Cavity mode identification for coherent terahertz emission from a nearly square stack of intrinsic Josephson junctions
M. Tsujimoto, I. Kakeya, T. Kashiwagi +2
Stacks of intrinsic Josephson junctions in BiSrCaCuO emit intense and coherent terahertz waves determined by the internal electromagnetic cavity resonance. We i…
Local SiC photoluminescence evidence of non-mutualistic hot spot formation and sub-THz coherent emission from a rectangular BiSrCaCuO mesa
Hidetoshi Minami, Chiharu Watanabe, Kota Sato +5
From the photoluminescence of SiC microcrystals uniformly covering a rectangular mesa of the high transition temperature superconductor BiSrCaCuO, the loc…
Broadly Tunable Sub-terahertz Emission from Internal Branches of the Current-voltage Characteristics of Superconducting Bi2Sr2CaCu2O8+d Single Crystals
Manabu Tsujimoto, Takashi Yamamoto, Kaveh Delfanazari +8
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 a…
Magnetic phase diagram of the frustrated S=1/2 chain magnet LiCu_2O_2
A. A. Bush, V. N. Glazkov, M. Hagiwara +7
We present the results of the magnetization and dielectric constant measurements on untwinned single crystal samples of the frustrated S=1/2 chain cuprate LiCu_2O_2. Novel magnetic…
Cavity mode waves during terahertz radiation from rectangular BiSrCaCuO mesas
Richard A. Klemm, Erica R. LaBerge, Dustin R. Morley +3
We re-examined the angular dependence of the radiation from the intrinsic Josephson junctions in rectangular mesas of BiSrCaCuO, in order to determine if the ca…
Geometrical Resonance Conditions for THz Radiation from the Intrinsic Josephson Junctions in Bi2Sr2CaCu2O8+d
Manabu Tsujimoto, Kazuhiro Yamaki, Kota Deguchi +6
Subterahertz radiation emitted from a variety of short rectangular-, square-, and disk-shaped mesas of intrinsic Josephson junctions fabricated from a Bi2Sr2CaCu2O8+d single crysta…
Evidence for a Dual-Source Mechanism of THz Radiation from Rectangular Mesas of Single Crystalline \bm{} Intrinsic Josephson Junctions
Kazuo Kadowaki, Manabu Tsujimoto, Kazuhiro Yamaki +5
The THz radiation emitted from rectangular mesas of single-crystal was studied using angular distribution measurements and Fourier transform infrar…
Triplet spin resonance of the Haldane compound with interchain coupling
A. I. Smirnov, V. N. Glazkov, T. Kashiwagi +5
Spin resonance absorption of the triplet excitations is studied experimentally in the Haldane magnet PbNi2V2O8. The spectrum has features of spin S=1 resonance in a crystal field,…
Evidence for Carrier-Induced High-Tc Ferromagnetism in Mn-doped GaN film
S. Yoshii, S. Sonoda, T. Yamamoto +6
A GaN film doped with 8.2 % Mn was grown by the molecular-beam-epitaxy technique. Magnetization measurements show that this highly Mn-doped GaN film exhibits ferromagnetism above r…