Y.H. Ha

856 total citations
21 papers, 672 citations indexed

About

Y.H. Ha is a scholar working on Electrical and Electronic Engineering, Materials Chemistry and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, Y.H. Ha has authored 21 papers receiving a total of 672 indexed citations (citations by other indexed papers that have themselves been cited), including 16 papers in Electrical and Electronic Engineering, 11 papers in Materials Chemistry and 5 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in Y.H. Ha's work include Phase-change materials and chalcogenides (8 papers), Semiconductor materials and devices (7 papers) and Advanced Memory and Neural Computing (6 papers). Y.H. Ha is often cited by papers focused on Phase-change materials and chalcogenides (8 papers), Semiconductor materials and devices (7 papers) and Advanced Memory and Neural Computing (6 papers). Y.H. Ha collaborates with scholars based in South Korea, United States and Japan. Y.H. Ha's co-authors include Hideki Horii, J.H. Yi, Dae Won Moon, Joo Tae Moon, J.H. Park, Y.N. Hwang, Se‐Jong Kahng, Young Kuk, U‐In Chung and S.O. Park and has published in prestigious journals such as Physical Review Letters, Physical review. B, Condensed matter and Applied Physics Letters.

In The Last Decade

Y.H. Ha

20 papers receiving 649 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Y.H. Ha South Korea	12	527	431	129	122	117	21	672
K. Y. Hsieh Taiwan	17	809 1.5×	369 0.9×	148 1.1×	383 3.1×	116 1.0×	67	1.1k
Michel Depas Belgium	13	1.6k 3.0×	399 0.9×	128 1.0×	261 2.1×	24 0.2×	27	1.6k
G. Pananakakis France	22	1.9k 3.7×	381 0.9×	70 0.5×	224 1.8×	63 0.5×	135	2.0k
Yuzuru Ohji Japan	19	1.0k 1.9×	251 0.6×	144 1.1×	121 1.0×	8 0.1×	117	1.1k
Toshiyuki Mine Japan	17	917 1.7×	394 0.9×	39 0.3×	329 2.7×	40 0.3×	103	1.1k
Hirohito Watanabe Japan	14	393 0.7×	255 0.6×	129 1.0×	112 0.9×	12 0.1×	44	584
Robert Havemann United States	14	587 1.1×	98 0.2×	344 2.7×	104 0.9×	15 0.1×	57	707
Bich-Yen Nguyen France	19	1.3k 2.5×	355 0.8×	88 0.7×	96 0.8×	20 0.2×	119	1.4k
R. Bellens Belgium	13	1.6k 3.0×	243 0.6×	117 0.9×	75 0.6×	11 0.1×	40	1.6k
Mustafa Pinarbasi United States	15	403 0.8×	314 0.7×	116 0.9×	260 2.1×	29 0.2×	37	591

Countries citing papers authored by Y.H. Ha

Since Specialization

Citations

This map shows the geographic impact of Y.H. Ha'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 Y.H. Ha with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Y.H. Ha more than expected).

Fields of papers citing papers by Y.H. Ha

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Y.H. Ha. 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 Y.H. Ha. The network helps show where Y.H. Ha may publish in the future.

Co-authorship network of co-authors of Y.H. Ha

This figure shows the co-authorship network connecting the top 25 collaborators of Y.H. Ha. A scholar is included among the top collaborators of Y.H. Ha 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 Y.H. Ha. Y.H. Ha 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

Ha, Y.H., et al.. (2025). Crowdsourced 3-D Wi-Fi AP Localization in Multifloor Buildings via Vertical Transitions. IEEE Internet of Things Journal. 12(22). 48621–48636.

Kim, Yong-Hyuk, et al.. (2013). Two Applications of Clustering Techniques to Twitter: Community Detection and Issue Extraction. Discrete Dynamics in Nature and Society. 2013. 1–8. 16 indexed citations

Kim, Min Jung, In-Hwan Baek, Y.H. Ha, et al.. (2010). Low power operating bipolar TMO ReRAM for sub 10 nm era. 19.3.1–19.3.4. 65 indexed citations

Cho, Sunglae, Dong-Ho Ahn, Young-Kuk Kim, et al.. (2008). Recent progress of phase change random access memory (PRAM). 1 indexed citations

Kim, Kihong, JaeGwan Chung, Se Ahn Song, et al.. (2006). Observation of molecular nitrogen in N-doped Ge2Sb2Te5. Applied Physics Letters. 89(24). 59 indexed citations

Song, Youjian, C.W. Jeong, Jaekyung Shin, et al.. (2005). Highly manufacturable high density phase change memory of 64Mb and beyond. 907–910. 65 indexed citations

Yi, J.H., Y.H. Ha, Bong Jin Kuh, et al.. (2005). Highly scalable on-axis confined cell structure for high density PRAM beyond 256Mb. 96–97. 58 indexed citations

Horii, Hideki, J.H. Yi, Y.H. Ha, et al.. (2004). A novel cell technology using N-doped GeSbTe films for phase change RAM. 97 indexed citations

Hwang, Y.N., Sojung Lee, Sangyoon Lee, et al.. (2004). Writing current reduction for high-density phase-change RAM. 37.1.1–37.1.4. 67 indexed citations

10.

Yi, J.H., Y.H. Ha, Bong Jin Kuh, et al.. (2004). Novel cell structure of PRAM with thin metal layer inserted GeSbTe. 37.3.1–37.3.4. 16 indexed citations

11.

Ha, Y.H., J.H. Yi, Hideki Horii, et al.. (2004). An edge contact type cell for Phase Change RAM featuring very low power consumption. 175–176. 63 indexed citations

12.

Kim, J. W., Han Woong Yeom, Ki‐jeong Kong, et al.. (2003). Spontaneous N Incorporation onto a Si(100) Surface. Physical Review Letters. 90(10). 106101–106101. 37 indexed citations

13.

Kim, Joon-Young, et al.. (2002). Ultrathin Co films on Pt(111) and the Co-Pt interface investigated by surface magneto-optical Kerr effect and medium-energy ion scattering spectroscopy. Physical review. B, Condensed matter. 65(10). 23 indexed citations

14.

Kahng, Se‐Jong, Y.H. Ha, Dae Won Moon, & Young Kuk. (2000). Strained Ge overlayer on aSi(001)−(2×1)surface. Physical review. B, Condensed matter. 61(16). 10827–10831. 5 indexed citations

15.

Moon, Dae Won, et al.. (2000). Medium-energy ion scattering spectroscopy for quantitative surface and near-surface analysis of ultrathin films. Surface and Interface Analysis. 30(1). 484–487. 2 indexed citations

16.

Kahng, Se‐Jong, Y.H. Ha, Dae Won Moon, & Young Kuk. (2000). Segregation of Si in Ge overlayers grown on Si(100) with hydrogen surfactant. Applied Physics Letters. 77(7). 981–983. 6 indexed citations

17.

Kahng, Se‐Jong, Y.H. Ha, Dae Won Moon, & Young Kuk. (2000). Intermixing in Stranski–Krastanov germanium overlayer on Si(100). Journal of Vacuum Science & Technology A Vacuum Surfaces and Films. 18(4). 1937–1940. 6 indexed citations

18.

Moon, Dae Won, Y.H. Ha, Hyun‐Kyung Kim, et al.. (1999). Low sputter damage of metal single crystalline surfaces investigated with medium energy ion scattering spectroscopy. Applied Surface Science. 150(1-4). 235–243. 9 indexed citations

19.

Kurokawa, Akira, Kunihiro Sakamoto, Hiroshi Itoh, et al.. (1999). Ultrathin Silicon Dioxide Formation By Ozone On Ultraflat Si Surface. MRS Proceedings. 567. 6 indexed citations

20.

Kahng, Se‐Jong, et al.. (1998). Hydrogen-Surfactant Mediated Growth of Ge on Si(001). Physical Review Letters. 80(22). 4931–4934. 64 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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