Magnetotransport study of the charged stripes in high-T_c cuprates

We present a study of the in-plane and out-of-plane magnetoresistance (MR) in heavily-underdoped, antiferromagnetic YBa_{2}Cu_{3}O_{6+x}, which reveals a variety of striking features. The in-plane MR demonstrates a "d-wave"-like anisotropy upon rotating the magnetic field H within the ab plane. With decreasing temperature below 20-25 K, the system acquires memory: exposing a crystal to the magnetic field results in a persistent in-plane resistivity anisotropy. The overall features can be explained by assuming that the CuO_2 planes contain a developed array of stripes accommodating the doped holes, and that the MR is associated with the field-induced topological ordering of the stripes.Comment: 4 pages, 5 figures, invited paper at M2S-HTSC-VI, to be published in Physics C (Proceedings of the International Conference on Materials and Mechanisms of Superconductivity, High Temperature Superconductors VI (M2S-HTSC-VI), Houston, Feb 20-25, 2000

PRIMARY OVARIAN MYXOMA

Primary ovarian myxoma is exceedingly rare, with only five cases known to be reported. We present an 18-year-old female with an ovarian myxoma

Electrical Resistivity Anisotropy from Self-Organized One-Dimensionality in High-Temperature Superconductors

We investigate the manifestation of the stripes in the in-plane resistivity anisotropy in untwinned single crystals of La_{2-x}Sr_{x}CuO_{4} (x = 0.02 - 0.04) and YBa_{2}Cu_{3}O_{y} (y = 6.35 - 7.0). It is found that both systems show strongly temperature-dependent in-plane anisotropy in the lightly hole-doped region and that the anisotropy in YBa_{2}Cu_{3}O_{y} grows with decreasing y below about 6.60 despite the decreasing orthorhombicity, which gives most direct evidence that electrons self-organize into a macroscopically anisotropic state. The transport is found to be easier along the direction of the spin stripes already reported, demonstrating that the stripes are intrinsically conducting in cuprates.Comment: 5 pages, 4 figures (including one color figure), final version accepted for publication in Phys. Rev. Let

電力監視システム導入による八戸工業大学における電力の「見える化」

表紙に表示のISSNはタイトル変更に伴い、21866015に変更 第8巻までのタイトル「八戸工業大学異分野融合科学研究所紀要

Status and Future Plan of Heavy-Ion Cancer Radiotherapy Facility HIMAC

The first clinical trial with a carbon-ion beam generated from HIMAC was conducted in June 1994. The total number of patients treated was about 6,500 as of August 2012. The impressive advance of carbon-ion therapy using HIMAC has been supported by high-reliability operation and by the developments of accelerator and beam-delivery technologies. Based on more than ten years of experience with HIMAC, we carried out design studies and R&D works toward a standard carbon-ion radiotherapy facility downsized from the HIMAC. As a result, collaborating NIRS with Gunma University, a pilot facility was constructed at Gunma University, and the treatments have carried out successfully since March 2010. On the other hand, NIRS proposed a new treatment research facility for the further development of radiotherapy with HIMAC, based on the pencil-beam 3D scanning. On the basis of the design study and the related R&D work, the new treatment research facility was constructed, as an extension of the existing one. The treatments have been successfully carried out with a pencil-beam 3D scanning since May 2011. As a future plan, we have developed a superconducting rotating gantry, and we are going to just start a study of a superconducting accelerator for the ion radiotherapy. The status and future plan of the heavy-ion cancer radiotherapy HIMAC is reported

New Heavy-Ion Cancer Treatment Facility at HIMAC

The first clinical trial of cancer treatment with carbon beams generated from the HIMAC was conducted in June 1994. Based on more than ten years of experience with HIMAC, we have proposed a new treatment facility for the purpose of further development of the therapy with HIMAC. This facility, which will be connected with the HIMAC synchrotron, will consist of three treatment rooms: two rooms equippedwith horizontal and vertical beam-delivery systems and one room with a rotating gantry. In both the fixed beam delivery and rotating gantry systems, a 3D beam-scanning method will be employed with gated irradiation with patients respiration in order to increase the treatment accuracy.EPAC08（第11回欧州粒子線加速器会議

Development for New Carbon Cancer-Therapy Facility and Future Plan of HIMAC

第10回ヨーロッパ粒子線加速器会

Introducing carbon-ion scanning treatment for moving target at NIRS

PTCOG5

Overview of NIRS Accelerator Activity

Joint Symposium 2013 on Carbon Ion Radiotherap