小泉昭久

研究者氏名	小泉昭久
	コイズミアキヒサ
URL
所属	兵庫県立大学
部署	大学院物質理学研究科
職名	准教授
学位	博士（理学）(岡山大学)
J-Global ID	200901062593359879

研究キーワード

コンプトン散乱 ,磁気吸収 ,磁気散乱 ,放射光 ,軌道状態 ,磁性

研究分野

自然科学一般 / 磁性、超伝導、強相関系 /

経歴

2007年10月

現在

兵庫県立大学大学院理学研究科准教授

2004年4月

2007年9月

兵庫県立大学大学院物質理学研究科助教

1992年

2004年3月

姫路工業大学理学部助手

学歴

1992年

岡山大学自然科学研究科

論文

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Visualizing the Kondo lattice crossover in YbRh2Si2 with Compton scattering

M. Güttler K. Kummer K. Kliemt C. Krellner S. Seiro C. Geibel C. Laubschat Y. Kubo Y. Sakurai D. V. Vyalikh A. Koizumi

Physical Review B 103(11) 2021年3月

With the breakdown of coherent Kondo scattering with rising temperature, the Fermi surface (FS) in rare-earth Kondo lattices is expected to transition from the large FS counting the 4f moments, which form entangled quasiparticles with strongly enh...

Electronic structure in heavy fermion compound Upd<inf>2</inf>Al<inf>3</inf> through directional Compton profile measurement

Akihisa Koizumi Yasunori Kubo Etsuji Yamamoto Yoshinori Haga Yoshiharu Sakurai

Journal of the Physical Society of Japan 88(3) 2019年

We have measured directional Compton profiles on the (0001) plane in the UPd2Al3 single crystal with hexagonal symmetry in order to investigate the change in electronic structure related to the crossover phenomenon between the itinerant and locali...

How the electronic structure in URu<inf>2</inf>Si<inf>2</inf> changes with temperature: A high-resolution Compton scattering study

Akihisa Koizumi Yasunori Kubo Gaku Motoyama Tomoo Yamamura Yoshiharu Sakurai

Journal of the Physical Society of Japan 87(6) 2018年

We have measured directional Compton profiles on the (001) plane in URu2Si2 single crystal at several temperatures. Two-dimensional electron occupation number densities (2D-EONDs) were obtained from the profiles through electron momentum reconstru...

Cryogenic system for X-ray Compton scattering measurements of superfluid helium below 2 K

Hiroyuki Tanaka Akira Yamaguchi Akihisa Koizumi Ikuto Kawasaki Akihiko Sumiyama Masayoshi Itou Yoshiharu Sakurai

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 861 23-27 2017年7月

A cryostat was constructed for high-resolution X-ray Compton scattering measurements at temperature down to 1.7 K, in order to investigate superfluid helium-4. Compton profiles of helium were measured using synchrotron X-rays for gas and liquid ph...

Visual understanding of the hidden-order transition in URu<inf>2</inf> Si<inf>2</inf> by high-resolution x-ray Compton scattering

Akihisa Koizumi Yasunori Kubo Gaku Motoyama Tomoo Yamamura Masayoshi Itou Yoshiharu Sakurai

Physical Review B - Condensed Matter and Materials Physics 92(12) 2015年9月

We report the change of electronic structure associated with the hidden-order (HO) transition in URu2Si2 through Compton scattering experiment on the (001) plane of the single crystal. The two-dimensional electron occupation number densities (EOND...