Megumi Kawasaki

Overview

Best Publications

• MgxZn1−xO as a II–VI widegap semiconductor alloy

  A. Ohtomo;M. Kawasaki;T. Koida;K. Masubuchi

  2269
  Citations

• High throughput fabrication of transition-metal-doped epitaxial ZnO thin films: A series of oxide-diluted magnetic semiconductors and their properties

  Zhengwu Jin;Tomoteru Fukumura;M. Kawasaki;K. Ando

  777
  Citations

• Nanomaterials by severe plastic deformation: review of historical developments and recent advances

  Unknown

  655
  Citations

• Metallic ordered double-perovskite Sr2CrReO6 with maximal Curie temperature of 635 K

  H. Kato;T. Okuda;Y. Okimoto;Y. Tomioka

  423
  Citations

• Room-temperature stimulated emission of excitons in ZnO/(Mg, Zn)O superlattices

  A. Ohtomo;K. Tamura;M. Kawasaki;T. Makino

  328
  Citations

• Principles of superplasticity in ultrafine-grained materials

  Megumi Kawasaki;Terence G. Langdon;Terence G. Langdon

  315
  Citations

• Effect of annealing on mechanical properties of a nanocrystalline CoCrFeNiMn high-entropy alloy processed by high-pressure torsion

  Hamed Shahmir;Junyang He;Zhaoping Lu;Megumi Kawasaki

  313
  Citations

• Seventy years of Hall-Petch, ninety years of superplasticity and a generalized approach to the effect of grain size on flow stress

  Unknown

  309
  Citations

• Exciton spectra of ZnO epitaxial layers on lattice-matched substrates grown with laser-molecular-beam epitaxy

  T. Makino;C. H. Chia;N. T. Tuan;Y. Segawa

  284
  Citations

• Microstructural evolution in high purity aluminum processed by ECAP

  Megumi Kawasaki;Zenji Horita;Terence G. Langdon;Terence G. Langdon

  279
  Citations

• Excitonic ultraviolet laser emission at room temperature from naturally made cavity in ZnO nanocrytal thin films

  M. Kawasaki;A. Ohtomo;I. Ohkubo;H. Koinuma

  250
  Citations

• Large magneto-optical effect in an oxide diluted magnetic semiconductor Zn1−xCoxO

  K. Ando;H. Saito;Zhengwu Jin;T. Fukumura

  245
  Citations

• Radiative and nonradiative recombination processes in lattice-matched (Cd,Zn)O/(Mg,Zn)O multiquantum wells

  T. Makino;C. H. Chia;Nguen T. Tuan;Y. Segawa

  233
  Citations

• An investigation of hardness homogeneity throughout disks processed by high-pressure torsion

  Megumi Kawasaki;Roberto B. Figueiredo;Terence G. Langdon;Terence G. Langdon

  228
  Citations

• Spherical nanoindentation creep behavior of nanocrystalline and coarse-grained CoCrFeMnNi high-entropy alloys

  Dong Hyun Lee;Moo Young Seok;Yakai Zhao;In Chul Choi

  225
  Citations

• Anatase TiO2 thin films grown on lattice-matched LaAlO3 substrate by laser molecular-beam epitaxy

  M. Murakami;Y. Matsumoto;K. Nakajima;T. Makino

  222
  Citations

• Different models of hardness evolution in ultrafine-grained materials processed by high-pressure torsion

  Megumi Kawasaki

  200
  Citations

• Severe plastic deformation for producing Superfunctional ultrafine-grained and heterostructured materials: An interdisciplinary review

  Unknown

  196
  Citations

• Microstructure and properties of a CoCrFeNiMn high-entropy alloy processed by equal-channel angular pressing

  Hamed Shahmir;Tayebeh Mousavi;Junyang He;Zhaoping Lu

  194
  Citations

• Stimulated emission induced by exciton–exciton scattering in ZnO/ZnMgO multiquantum wells up to room temperature

  Handong Sun;T. Makino;N. T. Tuan;Y. Segawa

  183
  Citations

• The significance of strain reversals during processing by high-pressure torsion

  Megumi Kawasaki;Terence G. Langdon;Terence G. Langdon

  179
  Citations

• Microstructural evolution in a two-phase alloy processed by high-pressure torsion

  Megumi Kawasaki;Byungmin Ahn;Terence G. Langdon;Terence G. Langdon

  160
  Citations

• Analysis of the polar direction of GaN film growth by coaxial impact collision ion scattering spectroscopy

  M. Sumiya;M. Tanaka;K. Ohtsuka;S. Fuke

  141
  Citations