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After getting bachelor and master’s degrees (2006, 2008) in applied physics and electronic engineering from Tohoku University (thesis title: Photo-response in inter-subband of epitaxial ZnO-based Quantum wells), Mohamed joined NEC Corporation (2008-2010) as a hardware engineer for 2.5 years; and participated in the development of multi-function printers. Following his success in getting an individual research fund from the “Japan Society for the Promotion of Science” (known as JSPS), he accomplished his Ph. D thesis (Oct. 2010 – Sept. 2014) in the university mentioned above investigating: “Multi-functionalities of wurtzite-MgZnO based MTJ devices for high magnetic storage density”. Then, he continued his academic research on the topic of: “Electric-field control of wurtzite-MgZnO based MTJ devices for low energy consumption” as a postdoctoral fellow in collaboration with Kanazawa University. During the period between April 2015 and November 2017, he joined the National Institute for Materials Sciences (NIMS) as an R&D scientist in the Japan governmental project for industry-oriented research called “ImPACT”; and working in the topic of “Developing novel materials as tunnel-barriers in perpendicular-MTJ devices for electrically controlled MRAMs for high magnetic storage density” in collaboration with many leading corporations and research centers in the magnetic storage technologies (Toshiba Memory, TDK, Samsung Electronics, and the National Institute of Advanced Industrial Science and Technology (AIST)). Now, he is focusing on the mass production and improvement of high-quality spintronics based magnetic field sensors for automobiles applications using the fascinating facilities of the International Iberian Nanotechnology Laboratory (INL). This activity is performed within the group of Prof. Paulo Freitas and in collaboration with industrial partners from Europe, the US, and Asia. Research & Development related Skills: (A) Long experience with clean-room and microfabrication technologies: Photo- and electro-beam lithography (up to 8-inch wafers), IBE and RIE, passivation, 3D fabrication of CPP devices for MRAM and magnetic sensors in the nanoscale. (~ 10 yrs.) (B) Strong background in thin film deposition and characterization techniques: PVD clusters tools (Sputter: SINGULUS, ULVAC, EIKO, MBE, and IBD), Characterizations: AFM, MFM, XRD, XRF, PL, FTIR, VSM, SQUID, PPMS, and low-temperature measurements. [11 journal papers] (C) Strong background in magnetic materials and spintronics devices: Epitaxial and polycrystalline Magnetic Tunnel Junctions (MTJ) design, fabrication and characterization (CPP devices & CIPT measurement) for (1) voltage-controlled MRAM utilizing novel spinel oxides and the promising interfacial phenomena: PMA and VCMA. And (2) Magnetic sensors for automobile applications (6 & 8-inch wafers) [8 journal papers & 2 patent] (PS: PMA and VCMA stand for perpendicular magnetic anisotropy and voltage-controlled magnetic anisotropy generated at the metal/oxide interfaces and enabling low energy consumption in MRAM.) (D) Strong background in semiconductors physics and related optoelectronic devices: Mainly ZnO and GaN semiconductors: deposition techniques, Quantum wells design, micro-fabrication (wet-etching) and optical characterization. [8 journal papers] (E) Electrical measurement setup skills: C++ language Programming, MS-office, LabVIEW and data analysis tools (as MATLAB, Igor, and Python). (F) Electronic circuits understanding, including design and HW boards evaluation [1 patent] (G) Good background in Ferroelectric materials and their tunnel junctions (FTJs) [3 journal paper]
Identification

Personal identification

Full name
MOHAMED BELMOUBARIK

Citation names

  • MOHAMED BELMOUBARIK
  • M. Belmoubarik

Author identifiers

Ciência ID
751D-C0E9-9547
ORCID iD
0000-0003-3592-1259
Google Scholar ID
dxLlttsAAAAJ

Telephones

Telephone
  • 911706719 (Personal)

Addresses

  • INL International Iberian Nanotechnology Laboratory, Spintronics Group, Av. Mestre José Veiga, 4715-330, Braga, Braga, Portugal (Professional)

Websites

Knowledge fields

  • Engineering and Technology - Materials Engineering
  • Engineering and Technology - Electrotechnical Engineering, Electronics and Informatics - Electrical and Electronic Engineering
  • Engineering and Technology - Nano-technology - Nano-processes
  • Exact Sciences - Physical Sciences - Optics
  • Engineering and Technology - Nano-technology - Nano-materials
  • Exact Sciences - Physical Sciences - Condensed Matter Physics

Languages

Language Speaking Reading Writing Listening Peer-review
English Proficiency (C2) Proficiency (C2) Proficiency (C2) Proficiency (C2) Proficiency (C2)
French Proficiency (C2) Proficiency (C2) Proficiency (C2) Proficiency (C2) Advanced (C1)
Japanese Proficiency (C2) Proficiency (C2) Proficiency (C2) Proficiency (C2) Proficiency (C2)
Arab (Mother tongue)
Education
Degree Classification
2010/10/01 - 2014/09/24
Concluded
Graduate School of Engineering, Electronic Engineering Dpt. (Doktor (PhD))
Major in Electronic Engineering
Tohoku Daigaku - Aobayama Shin Campus, Japan
"Study on Magneto- and Electro-Transport Properties of Wurtzite-MgZnO Tunnel Barrier Prepared by Molecular Beam Epitaxy" (THESIS/DISSERTATION)
2006/04/01 - 2008/03/31
Concluded
Graduate School of Engineering, Electronic Engineering (Master)
Major in Electronic Engineering
Tohoku Daigaku - Aobayama Shin Campus, Japan
"Photo-response detection in epitaxial ZnO-based Quantum wells" (THESIS/DISSERTATION)
2002/04/01 - 2006/04/01
Concluded
Undergraduate School of Engineering, Electronic Engineering Department (Bachelor)
Tohoku Daigaku, Japan
"Molecular Beam Epitaxy based deposition of high-quality ZnO based quantum wells" (THESIS/DISSERTATION)
Affiliation

Science

Category
Host institution
Employer
2015/04/01 - 2017/12/09 Researcher (Research) Busshitsu Zairyo Kenkyu Kiko, Japan
Busshitsu Zairyo Kenkyu Kiko Kokusai Nano Technology Kyoten, Japan
2014/10/01 - 2015/03/01 Postdoc (Research) Ippan Zaidan Hojin Kikai Shinko Kyokai, Japan
Tohoku Daigaku - Aobayama Shin Campus, Japan

Teaching in Higher Education

Category
Host institution
Employer
2011/10/01 - 2013/07/31 Tutor (University Teacher) Tohoku Daigaku - Aobayama Shin Campus, Japan

Others

Category
Host institution
Employer
2017/12/18 - Current Senior Process Engineer International Iberian Nanotechnology Laboratory, Portugal
International Iberian Nanotechnology Laboratory, Portugal
2008/04/01 - 2010/09/17 Hardware test engineer Nihon Denki Kabushiki Kaisha, Japan
Projects

Grant

Designation Funders
2013/04 - 2015/03 Fabrication of magnetic tunnel junctions with ZnO barriers for controllable magnetoresistance by electric field Nihon Gakujutsu Shinkokai
Outputs

Publications

Conference abstract
  1. BELMOUBARIK, MOHAMED. "Epitaxial magnetic tunnel junctions with a low barrier height spinel MgGa2O4". 2017.
    10.1109/INTMAG.2017.8007796
Journal article
  1. BELMOUBARIK, MOHAMED. "Realizing Room-Temperature Resonant Tunnel Magnetoresistance in Cr/Fe/MgAl 2 O 4 Quasi-Quantum Well Structures". Advanced Science (2019): http://dx.doi.org/10.1002/advs.201901438.
    10.1002/advs.201901438
  2. BELMOUBARIK, MOHAMED. "Large nonvolatile control of interfacial magnetic anisotropy in CoPt by a ferroelectric ZnO-based tunneling barrier". Physical Review B (2019): http://dx.doi.org/10.1103/physrevb.100.054423.
    10.1103/physrevb.100.054423
  3. Ikhtiar; Hiroaki Sukegawa; Xiandong Xu; Mohamed Belmoubarik; Hwachol Lee; Shinya Kasai; Kazuhiro Hono. "Giant tunnel magnetoresistance in polycrystalline magnetic tunnel junctions with highly textured MgAl2O4(001) based barriers". Applied Physics Letters 112 2 (2018): 022408-022408. https://doi.org/10.1063/1.5013076.
    10.1063/1.5013076
  4. Mohamed Belmoubarik; Hiroaki Sukegawa; Tadakatsu Ohkubo; Seiji Mitani; Kazuhiro Hono. "Effect of Mg-Al insertion on magnetotransport properties in epitaxial Fe/sputter-deposited MgAl2O4/Fe(001) magnetic tunnel junctions". AIP Advances 7 5 (2017): 055908-055908. https://doi.org/10.1063%2F1.4973393.
    10.1063/1.4973393
  5. Hiroaki Sukegawa; Yushi Kato; Mohamed Belmoubarik; P.-H. Cheng; Tadaomi Daibou; Naoharu Shimomura; Yuuzo Kamiguchi; et al. "MgGa2O4 spinel barrier for magnetic tunnel junctions: Coherent tunneling and low barrier height". Applied Physics Letters 110 12 (2017): 122404-122404. https://doi.org/10.1063%2F1.4977946.
    10.1063/1.4977946
  6. Mohamed Belmoubarik; Muftah Al-Mahdawi; Masao Obata; Daiki Yoshikawa; Hideyuki Sato; Tomohiro Nozaki; Tatsuki Oda; Masashi Sahashi. "Tunneling electroresistance of MgZnO-based tunnel junctions". Applied Physics Letters 109 17 (2016): 173507-173507. https://doi.org/10.1063/1.4966180.
    10.1063/1.4966180
  7. Mohamed Belmoubarik; Hiroaki Sukegawa; Tadakatsu Ohkubo; Seiji Mitani; Kazuhiro Hono. "MgAl2O4(001) based magnetic tunnel junctions made by direct sputtering of a sintered spinel target". Appl. Phys. Lett. 108 13 (2016): 132404-132404. http://dx.doi.org/10.1063/1.4945049.
    10.1063/1.4945049
  8. M. Belmoubarik; M. Al-Mahdawi; H. Sato; T. Nozaki; M. Sahashi. "Epitaxial wurtzite-MgZnO barrier based magnetic tunnel junctions deposited on a metallic ferromagnetic electrode". Applied Physics Letters 106 25 (2015): 252403-252403. https://doi.org/10.1063/1.4923041.
    10.1063/1.4923041
  9. M. Belmoubarik; T. Nozaki; H. Endo; M. Sahashi. "Investigation of ZnO thin films deposited on ferromagnetic metallic buffer layer by molecular beam epitaxy toward realization of ZnO-based magnetic tunneling junctions". J. Appl. Phys. 113 17 (2013): 17C106-17C106. http://dx.doi.org/10.1063/1.4794875.
    10.1063/1.4794875
  10. K. Ohtani; M. Belmoubarik; H. Ohno. "Intersubband optical transitions in ZnO-based quantum wells grown by plasma-assisted molecular beam epitaxy". Journal of Crystal Growth 311 7 (2009): 2176-2178. http://dx.doi.org/10.1016/j.jcrysgro.2008.09.134.
    10.1016/j.jcrysgro.2008.09.134
  11. M. Belmoubarik; K. Ohtani; H. Ohno. "Intersubband transitions in ZnO multiple quantum wells". Applied Physics Letters 92 19 (2008): 191906-191906. http://dx.doi.org/10.1063/1.2926673.
    10.1063/1.2926673
Thesis / Dissertation
  1. BELMOUBARIK, MOHAMED. "Study on Magneto- and Electro-Transport Properties of Wurtzite-MgZnO Tunnel Barrier Prepared by Molecular Beam Epitaxy". PhD, Tohoku Daigaku, 2014. http://hdl.handle.net/10097/60926.

Intellectual property

Patent
  1. BELMOUBARIK, MOHAMED. 2019. "Magnetoresistive element and magnetic memory device".
  2. BELMOUBARIK, MOHAMED. 2018. "Magnetoresistive element and magnetic storage device". Japan.
  3. BELMOUBARIK, MOHAMED. 2012. "Region separation apparatus, image forming apparatus, region separation method, and region separation program".
Activities

Oral presentation

Presentation title Event name
Host (Event location)
2019/01/14 Resonant tunneling anisotropic magnetoresistance in an Fe spin-dependent quantum well MMM-Intermag 2019
(Washington DC, United States)
2019/01/14 Strong modulation of finite-bias tunnel magnetoresistance due to quantum well states in Cr/Fe/MgAl2O4/Fe(001) junctions MMM-Intermag 2019
(Washington DC, USA., United States)
2019/01/14 Oscillatory dependence of both tunnel magnetoresistance and tunnel anisotropic magnetoresistance on the barrier thickness in Fe/MgAl2O4/Fe(001) junctions MMM-Intermag 2019
(Washington DC, USA., United States)
2019/01/10 Non-volatile modulation of surface anisotropy in CoPt by ZnO ferroelectric polarization in magnetic tunnel junctions 16th RIEC International Workshop on Spintronics and 8th JSPS Core-to-Core Workshop on “New-Concept Spintronic Devices”
Tohoku University (Sendai, Japan)
2019/01/09 Spin polarized quantum well states in atomically controlled Cr/Fe/MgAl2O4 structures 16th RIEC International Workshop on Spintronics and 8th JSPS Core-to-Core Workshop on “New-Concept Spintronic Devices
Tohoku University (Sendai, Japan)
2018/09/03 Tunneling anisotropic magnetoresistance at high temperature in an Fe spin-dependent quantum well 9th Joint European Magnetic Symposia (JEMS)
(Mainz, Germany)
2018/04/25 Atomic layer number dependence of voltage-controlled magnetic anisotropy in Cr/Fe/MgAl2O4 heterostructure Imtermag 2018
(Singapore)
2018/04/23 Highly (001)-textured MgAl2O4-based magnetic tunnel junctions with large magnetoresistance over 240% Imtermag 2018
(Singapore)
2017/09/25 New spintronic materials for magnetic tunnel junctions the 3rd ImPACT International Symposium on Spintronic Memory, Circuit and Storage
Tohoku University
2017/09/25 Low-temperature measurements of voltage-controlled magnetic anisotropy in Cr/Fe/MgAl2O4 the 3rd ImPACT International Symposium on Spintronic Memory, Circuit and Storage
Tohoku University (Sendai, Japan)
2017/09/25 Perpendicular magnetic anisotropy at Fe/MgAl2O4 interfaces and its voltage effects the 3rd ImPACT International Symposium on Spintronic Memory, Circuit and Storage
(Sendai, Japan)
2017/09/24 Toward giant tunnel magnetoresistance in (001) epitaxial magnetic tunnel junctions using spinel oxides the 3rd ImPACT International Symposium on Spintronic Memory, Circuit and Storage
Tohoku University (Sendai, Japan)
2017/08/02 Advanced Magnetic Tunnel Junctions using Spinel Oxide Barriers The 28th Magnetic Recording Conference (TMRC 2017), August 2nd – 4th 2017
(Tsukuba, Japan)
2017/04/24 Epitaxial magnetic tunnel junctions with a low barrier height spinel MgGa2O4 61st IEEE International Magnetics Conference
(Dublin Ireland., Ireland)
2016/10/31 Epitaxial Fe/MgAl2O4/Fe(001) magnetic tunnel junctions prepared by a direct sputtering technique and Mg-Al insertion”, 61st Annual Conference on Magnetism and Magnetic Materials
Magnetoresistance II: GMR, TMR section, FF-06, (New Orleans, United States)
2016/09/30 Giant tunnel magnetoresistance in epitaxial Fe/MgAl2O4/Fe(001) magnetic tunnel junctions prepared by a direct sputtering technique the 2nd ImPACT International Symposium on Spintronic Memory, Circuit and Storage
(Tsukuba, Japan)
2016/09/26 Effect of an Mg-Al insertion for directly sputtered MgAl2O4(001)-based epitaxial magnetic tunnel junctions ”, The 2016 International Conference on Solid State Devices and Materials (SSDM-2016)
(Tsukuba, Japan)
2016/06/23 Recent progress in MgAl2O4-based magnetic tunnel junctions with a tunable lattice spacing 3rd Workshop of the Core-to-Core Project Tohoku-York-Kaiserslautern, “New concepts for future spintronic devices”
(Kaiserslautern, Germany)
2014/05/04 Study on I-V Characteristics of Co0.3Pt0.7 Ferromagnet/MgxZn1-xO Hetero-Junctions toward Electrical Controlled Multi-State MTJ INTERMAG Europe, May 4th – 8th 2014, Dresen Germany
(Dresen, Germany)
2013/07/21 Zinc flux effect on ZnO thin films deposition by MBE method on Co-Pt buffers toward realization of ZnO based MTJs 3rd ISAMMA, July 21st – 25th 2013, Taichung, Taiwan
(Taichung, Taiwan)
2013/01/14 Investigation of ZnO Thin Films deposited on Ferromagnetic Metallic Buffer Layer by MBE toward Realization of ZnO-based MTJs 12th Joint MMM/Intermag, January 14th – 18th 2013
(Chicago, United States)
2012/10/02 Investigation of ZnO thin film grown on Co buffer toward ZnO tunnel barrier based magnetic tunnel junctions ICAUMS 2012
(Nara, Japan)

Course / Discipline taught

Academic session Degree Subject (Type) Institution / Organization
2011/04/01 - 2013/06/30 Magnetic materials and their properties (Bachelor) Tohoku Daigaku - Aobayama Shin Campus, Japan

Other jury / evaluation

Activity description Institution / Organization
2020/02/05 - Current A reviewer of the journal Thin Solid Films Elsevier BV, Netherlands
Distinctions

Award

2011 Ph.D. Student scholarship
Sojitz Kabushiki Gaisha, Japan
2010 Global-COE Research Assistant (Class-A) Scholarship
Tohoku Daigaku, Japan
2008 Ecouragement Award of the 31st Fresh industry paper contest
Kabushiki Kaisha Nikkan Kogyo Shinbunsha, Japan
2006 Best student Award: Tohoku University Engineering department (March 2006)
Tohoku Daigaku, Japan
2001 Graduate Student scholarship awarded from Japan Ministry of Education, Culture and Sports
Monbu Kagakusho Kenkyu Shinkokyoku Life Scienceka, Japan