I. Ohkubo

3.7k total citations · 1 hit paper
78 papers, 3.2k citations indexed

About

I. Ohkubo is a scholar working on Materials Chemistry, Electronic, Optical and Magnetic Materials and Condensed Matter Physics. According to data from OpenAlex, I. Ohkubo has authored 78 papers receiving a total of 3.2k indexed citations (citations by other indexed papers that have themselves been cited), including 65 papers in Materials Chemistry, 40 papers in Electronic, Optical and Magnetic Materials and 24 papers in Condensed Matter Physics. Recurrent topics in I. Ohkubo's work include Magnetic and transport properties of perovskites and related materials (28 papers), Electronic and Structural Properties of Oxides (27 papers) and Advanced Thermoelectric Materials and Devices (19 papers). I. Ohkubo is often cited by papers focused on Magnetic and transport properties of perovskites and related materials (28 papers), Electronic and Structural Properties of Oxides (27 papers) and Advanced Thermoelectric Materials and Devices (19 papers). I. Ohkubo collaborates with scholars based in Japan, United States and France. I. Ohkubo's co-authors include Hideomi Koinuma, Takao Mori, M. Kawasaki, Akira Ohtomo, M. Oshima, Hiroshi Kumigashira, Ioannis Petsagkourakis, Norifusa Satoh, Xavier Crispin and Klas Tybrandt and has published in prestigious journals such as Journal of the American Chemical Society, Physical Review Letters and Advanced Materials.

In The Last Decade

I. Ohkubo

77 papers receiving 3.1k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Thermoelectric materials and applications for energy harvesting power generation

2018 467 citations Ioannis Petsagkourakis, Klas Tybrandt et al. Science and Technology of Advanced Materials profile →

Peers

I. Ohkubo

EEE

EOMM

CMP

N. M. Nemes Spain

Ren‐Kui Zheng China

A. Gloskovskii Germany

Jaekwang Lee South Korea

D. Marré Italy

Young Jun Chang South Korea

Tula R. Paudel United States

Jayakanth Ravichandran United States

Matteo Bosi Italy

Takashi Koida Japan

N. M. Nemes Spain

I. Ohkubo

2.3k ×0.9

785 ×0.6

EEE

997 ×0.7

EOMM

626 ×1.0

CMP

198 ×0.7

Citations per year, relative to I. Ohkubo I. Ohkubo (= 1×) peers N. M. Nemes

Countries citing papers authored by I. Ohkubo

Since Specialization

Citations

This map shows the geographic impact of I. Ohkubo's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by I. Ohkubo with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites I. Ohkubo more than expected).

Fields of papers citing papers by I. Ohkubo

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by I. Ohkubo. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by I. Ohkubo. The network helps show where I. Ohkubo may publish in the future.

Co-authorship network of co-authors of I. Ohkubo

This figure shows the co-authorship network connecting the top 25 collaborators of I. Ohkubo. A scholar is included among the top collaborators of I. Ohkubo based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with I. Ohkubo. I. Ohkubo is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Aizawa, T., I. Ohkubo, Takahiro Baba, et al.. (2025). Defects modification in thermoelectric Mg₂Sn (Ge) epitaxial thin films through modulation of Mg flux rate in MBE. Journal of Physics Energy. 7(3). 35001–35001.

Ohkubo, I., et al.. (2023). Surface chemical states and structures of epitaxial Mg₂Sn thermoelectric thin films. Japanese Journal of Applied Physics. 62(10). 108004–108004. 1 indexed citations

Ohkubo, I., Masayuki Murata, Akihiko Ohi, et al.. (2023). Structural effects on the performance of microfabricated in-plane π -type thermoelectric devices composed of p-type Mg2Sn0.8Ge0.2 and n-type Bi layers. Applied Physics Letters. 122(24). 6 indexed citations

Aizawa, T., et al.. (2021). Improvement of power factor in the room temperature range of Mg ₂ Sn _{1− x} Ge _x. Japanese Journal of Applied Physics. 60(SB). SBBF06–SBBF06. 7 indexed citations

Ohkubo, I., T. Aizawa, K. Nakamura, & Takao Mori. (2021). Control of Competing Thermodynamics and Kinetics in Vapor Phase Thin-Film Growth of Nitrides and Borides. Frontiers in Chemistry. 9. 642388–642388. 5 indexed citations

Ohkubo, I., Zhufeng Hou, T. Aizawa, et al.. (2020). Realization of closed-loop optimization of epitaxial titanium nitride thin-film growth via machine learning. Materials Today Physics. 16. 100296–100296. 44 indexed citations

Petsagkourakis, Ioannis, Klas Tybrandt, Xavier Crispin, et al.. (2018). Thermoelectric materials and applications for energy harvesting power generation. Science and Technology of Advanced Materials. 19(1). 836–862. 467 indexed citations breakdown →

Ohkubo, I. & Takao Mori. (2017). Comparative Study of Exchange–Correlation Functional and Potential for Evaluating Thermoelectric Transport Properties in d⁰ Perovskite Oxides. Journal of the Physical Society of Japan. 86(7). 74705–74705. 5 indexed citations

Ohkubo, I. & Takao Mori. (2016). Anisotropic thermoelectric properties in layered complex nitrides with α-NaFeO₂-type structure. APL Materials. 4(10). 104808–104808. 14 indexed citations

10.

Aizawa, T., Shigeki Otani, I. Ohkubo, & Takao Mori. (2015). ZrC epitaxy on Si(111). Journal of Vacuum Science & Technology A Vacuum Surfaces and Films. 33(6). 1 indexed citations

11.

Ohkubo, I. & Takao Mori. (2015). Origin of Projected Excellent Thermoelectric Transport Properties in d⁰‐Electron AMN₂ (A = Sr or Ba; M = Ti, Zr, Hf) Layered Complex Metal Nitrides. European Journal of Inorganic Chemistry. 2015(22). 3715–3722. 13 indexed citations

12.

Edgar, James H., et al.. (2013). Seebeck Coefficient and Electrical Resistivity of Single Crystal B₁₂As₂at High Temperatures. Journal of the Physical Society of Japan. 82(9). 95001–95001. 9 indexed citations

13.

Harada, T., I. Ohkubo, Mikk Lippmaa, et al.. (2012). Spin-Filter Tunnel Junction with Matched Fermi Surfaces. Physical Review Letters. 109(7). 76602–76602. 21 indexed citations

14.

Harada, T., I. Ohkubo, & M. Oshima. (2009). Dependence of Magnetic Properties on Laser Ablation Conditions for Epitaxial La0.6Sr0.4MnO3 Thin Films Grown by Pulsed Laser Deposition. MATERIALS TRANSACTIONS. 50(5). 1081–1084. 1 indexed citations

15.

Ohkubo, I., T. Harada, Tsuyoshi Ohnishi, et al.. (2009). Device size dependence of resistance switching performance in metal/manganite/metal trilayers. Materials Science and Engineering B. 173(1-3). 3–6. 1 indexed citations

16.

Wadati, Hiroki, Akira Chikamatsu, I. Ohkubo, et al.. (2008). In SituPhotoemission Study ofPr1−xCaxMnO3Epitaxial Thin Films with Suppressed Charge Fluctuations. Physical Review Letters. 100(2). 26402–26402. 16 indexed citations

17.

Christen, Hans M., G. E. Jellison, I. Ohkubo, et al.. (2006). Dielectric and optical properties of epitaxial rare-earth scandate films and their crystallization behavior. Applied Physics Letters. 88(26). 76 indexed citations

18.

Wadati, Hiroki, I. Ohkubo, Hiroshi Kumigashira, et al.. (2006). In situ photoemission study of epitaxial thin films. Journal of Magnetism and Magnetic Materials. 310(2). 963–965. 3 indexed citations

19.

Chisholm, Matthew F., Andrew R. Lupini, S. J. Pennycook, et al.. (2004). Simultaneous Z-Contrast and Phase Contrast Imaging of Oxygen in Ceramic Interfaces. Microscopy and Microanalysis. 10(S02). 256–257. 5 indexed citations

20.

Nishii, Junya, Faruque M. Hossain, I. Ohkubo, et al.. (2003). High Mobility Thin Film Transistors with Transparent ZnO Channels. Japanese Journal of Applied Physics. 42(4A). L347–L347. 246 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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