Draft:Muralidhar Miryala

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Prof. Dr. Muralidhar Miryala
Pravasi Bharatiya Samman Awardee - 2021
Born	Karvena, T.N., India
Alma mater	Osmania University
Scientific career
Fields	High-temperature superconductors, melt-textured bulk superconductors, Nanostructural manipulation, Flux pinning, superconducting magnets, cables
Institutions	Osmania University , SRL-ISTEC, RTRI, WTUN, Shibaura Institute of Technology

Muralidhar Miryala research is focused on Physics and Material Science & Engineering, notably in the domain of High Temperature Superconductivity. This field delves into the transmission of electricity within select materials, showcasing an exceptional trait—conductivity without energy loss—as well as the remarkable ability to expel magnetic fields. His major contribution in the field led to the development of an exceptional quantum ternary superconducting material named LREBa₂Cu₃O_y. The ternary LREBa₂Cu₃O_y material enables stable and efficient levitation up to 90.2K and rotation of objects without the need for traditional mechanical components such as ball bearings or lubricants..

Early Life and Education

Prof. Muralidhar Miryala is from Karvena, Telangana State, India. He commenced his academic journey at ZPHS Badepally (OU), for his undergraduate studies. He pursued a master's degree in Physics from the Department of Physics at Osmania University's College of Science. In 1992, he obtained his Ph.D. in Superconductivity from the same department.

Research and Career

Prof. Muralidhar Miryala's research is primarily focused on the synthesis, characterization, and application of innovative materials, particularly within the realms of superconductivity and the development of bulk melt texture RE-123 and MgB₂ cryo-magnets. Dr. Muralidhar Miryala earned his Ph.D. in High T_c Superconductivity from Osmania University, Hyderabad, India, in 1992. Following this, he served as a lecturer and principal investigator in a young-scientist project from 1993 to 1995. Subsequently, he held positions at the superconductivity research laboratory (SRL) within the International Superconducting Technology Research Center (ISTEC) as both Chief Research Scientist and Senior Research Scientist, contributing from 1996 to 2008. Later, he joined the Japan Railways-Railway Technology Research Institute (RTRI) before becoming a Professor of the Shibaura Institute of Technology in 2013. At the Shibaura Institute of Technology, Prof. Muralidhar Miryala leads the Energy and Environment Laboratory, playing a crucial role in guiding academic initiatives. His influence is evident through various leadership roles such as serving on the Board of Councilor (2018-2023), Chair, and Deputy Chair of the OB World Technology University Network (2021-2023), along with his tenure as Deputy President within the same network (2015-2021).

Dr. Miryala's notable contributions in the field were inspired by the work of IBM researchers Georg Bednorz and K. Alex Müller, who discovered the high-T_c superconductor LaBaCuO in 1986. Building upon this foundation, Paul Chu's substitution of La with Y in 1987 resulted in an increase in superconducting transition temperature, surpassing the cost-effective liquid nitrogen threshold . Expanding on this progress, Prof. Miryala extended the substitution of Y with three and four elements, demonstrating their efficacy under high magnetic fields and temperatures [Patent 6,063,736, P2000-16811 A, EP 0 969527B]. Notably, Prof. Miryala's exploration led to the discovery of a novel ternary mixed NEG-123 system, capable of operation up to 15 T at 77 K and maintaining high performance up to 90.2 K [P2004-203727A, Physical Review Letters, Vol.89 (2002) 237001] . This work is protected by three patents—one in the United States (Patent 6,063,736), one in the Europe (Patent EP 0 969527 B1), and another in Japan (P2000-16811 A) Additionally, he devised a novel technology for producing RE-123 type silver sheathed wire through solid-state/liquid-phase reaction (0270260A). His advancements extend to the development of bulk MgB₂ with enhanced superconducting properties, making affordable superconducting magnets feasible for medical and transportation applications. His contributions has been recognized with a Japanese patent (P2012-96938A) for the cost-efficient, high-performance LREBa₂Cu₃O_y super magnets produced at scale. Furthermore, Dr. Miryala's contributions include advancements in technology for DC Superconducting Cable in railway system applications and the production of nano-scale particles using Ultrasonic techniques. This breakthrough significantly improves the cryomagnetic performance of low-cost MgB₂ magnets, with a recent patent filed. These developments hold importance across various sectors, including healthcare, transportation, and power applications, enabling the creation of cost-effective products . In 2021, he was honored with the Pravasi Bharatiya Samman Award in Science and Technology, a lifetime achievement recognition presented by the President of the Government of India. Dr. Miryala's output includes over 550 research items, spanning patents, books, review articles, and press releases. He has delivered over 370 presentations, encompassing oral and poster sessions, including plenary and invited talks.

Honors and awards

• Lifetime Achievement Award in HTSC University of Caen, Normandy, France | 2023
• Best Presentation Award SEATUC2023, Thailand | 2023
• Incredible Academician of World Award Record Owner, India | 2022
• Pravasi Bharatiya Samman, President of India Government of India, New Delhi | 2021
• SIT Chairman’s Award SIT Tokyo | 2021
• Best Faculty Award SF, NESIN | 2021
• Vebleo Fellow, Vebleo | 2021
• International Association of Advanced Materials (IAAM) Fellow, IAAM, Sweden | 2020
• SIT Presidential Award SIT Tokyo | 2019
• Engineering Education Award for Contributions in Higher Education Kanto Society | 2018
• Amity Global Academic Excellence INBUSH ERA World Summit | 2017
• Highly Cited Research Award Physica C: Superconductivity and its applications | 2016
• Award for Excellence in Research JR-RTRI Tokyo | 2012
• ISTEC Award for Excellence in Research SRL-ISTEC Tokyo | 2008, 2007
• Most Popular Paper Sci. Tech., IOP Publishers, UK | 2004
• Best Presentation Award IWCC11, Japan | 2003
• Director Award ISTEC-SRL, Japan | 2003, 1998
• Best Presentation Award MC-CEC, USA | 2001
• New Energy Development Organization (NEDO) Fellow, NEDO, Japan | 1999
• PASREG Award of Excellence, International PASREG committee, UK | 1999
• Iwate Govt. of Japan Fellow, Iwate Govt. | 1998
• Science & Technology Agency (STA) Fellow, STA, Japan | 1996
• Young Scientist Award, DST Govt. Of India | 1995
• International Center for Theoretical Physics (ICTP) Guest Scientist, ICTP, Italy. | 1991
• University Bursary fellow in M.Sc Osmania University, India| 1985

Patents

• Production of Nano Boron, Patent Ref. JP1386, Patent Application 2022-101724, Date of filling: April 25, 2022 (Japan)
• Seed crystal for production of superconductor and manufacturing method, Patent Number P2012-96938A, May 24, 2012.
• RE123 Based Oxide Superconductor and Method of Production of same, Patent number US 7964532 B2, June21, 2011.
• RE123 Based Oxide Superconductor and Method of Production of same, Patent number US 2009/0270260 A1, Oct. 29, 2009.
• RE123 Based Oxide Superconductor and Method of Production of same, Patent number 20068000976.4, March 19 2008.
• RE123 Based Oxide Superconductor and Method of Production of same, Patent number EP1865515 A1, Dec 12, 2007.
• Oxide Superconductor of High Critical Current Density, Patent Number EP 0 969527 B1, November 22, 2006.
• Oxide Superconductor of High Critical Current Density, Patent Number WO 2006/104287.A1, October 5, 2006.
• Oxide Superconductor of High Critical Current Density, Patent Number P2004-203727A, July 22, 2004.
• Oxide Superconductor of High Critical Current Density, Patent Number P2000-16811 A, January 18, 2000.
• Oxide Superconductor of High Critical Current Density, Patent Number 6,063,736, Date of Patent: May 16, 2000.

Selected Publication

• Patents relating to production of bulk ternary LRE-123 materials intended for application at high magnetic fields and temperatures, M. Muralidhar, M. Jirsa, M. Tomita Journal of Recent Patents on Material Science, Vol. 5 (2012) pp.4-17.
• Development of Nano-Structured HTSC for Application in Medicine, M.Muralidhar, M.R.Koblischka, M.Tomita Current Microscopy Contributions to Advances in Science and Technology, Microscopy Book Series No.5, (2012) pp.1468-1479, 2012.
• Development of 10 kA high temperature superconducting power cable for railway systems, M.Tomita, M.Muralidhar, K.Suzuki, Y.Fukumoto, A.Ishihara, J. of Appl. Phys, Vol. 111 (2012) 063910 (pp.4)
• Novel seeds applicable for mass processing of LRE-123 single grain bulks, M. Muralidhar, K. Suzuki, A. Ishihara, M. Jirsa, Y. Fukumoto, and M. Tomita, Supercond. Sci. Technol. Vol. 23 (2010)124003 (pp.8).
• Solid Phase (RE₂BaO₄) –Liquid Phase (BaCuO₂) Reaction: The Way to Highly Oriented ErBa₂Cu₃O_y Superconducting Thick Films on Commercial Silver Substrates, M. Muralidhar, N. Sakai, M. Jirsa, S. Tanaka, J. of Cryst. Growth Des., Vol.9 (2009) pp.2404- 2408.
• Highly enhanced flux pinning in melt-textured NEG-123 doped Nb and Mo nano particles, M. Muralidhar, N.Sakai, M.Jirsa, M.Murakami, I.Hirabayashi, Appl. Phys. Lett., 92 (2008)162512 (pp.3)
• Direct observation and analysis of nanoscale precipitates in (Sm,Eu,Gd)Ba₂Cu₃O_y. M. Muralidhar, N. Sakai, M. Jirsa, N. Koshizuka, and M. Murakami, Appl. Phys. Lett., Vol.85 (2004) pp.3504-3506.
• Vertex pinning by mesoscopic defects – a way to levitation at liquid oxygen. M. Muralidhar, N. Sakai, M. Jirsa, N. Koshizuka and M. Murakami, Appl. Phys. Lett., Vol. 83 (2003) pp.5005-500.
• New type of vortex pinning structure effective at very high magnetic fields. M. Muralidhar, N. Sakai, N. Chikumoto, M. Jirsa, T. Machi, Y. Wu, and M. Murakami. Physical Review Letters, Vol.89 (2002) 237001-1 (pp4).
• The pinning characteristics in chemically modified (Nd,Eu,Gd)-Ba-Cu-O superconductors. M. Muralidhar, N. Sakai, T. Nishiyama, M. Jirsa, T. Machi, and M. Murakami, Appl. Phys. Lett., 82 (2003) pp.943-945.
• Strong pinning in ternary (Nd-Sm-Gd)Ba₂Cu₃O_y superconductors. M. Muralidhar, S. Nariki, M. Jirsa, Y. Wu and M. Murakami Appl. Phys. Lett., 80 (2002) pp.1016-1018.
• Optimization of Matrix chemical ratio for high flux pinning in ternary (Nd-Eu-Gd)Ba₂Cu₃O_y. M. Muralidhar, M. Jirsa, N. Sakai and M. Murakami Appl. Phys. Lett., 79 (2001) pp.3107-3109.
• Effect of matrix composition on the flux pinning in (Nd,Eu,Gd)Ba₂Cu₃O_y superconductors. M. Muralidhar and M. Murakami. Physical Rev. B., 62 (2000) pp.13911-13914
• Enhancement of J_c by 211 particles in ternary (Nd_0.33Eu_0.33Gd_0.33)Ba₂Cu₃O₇ melt processed superconductors. M. Muralidhar, M. R. Koblischka and M. Murakami. Appl. Phys. Lett., 76 (2000) pp.91-93.

See also

• Timeline of low-temperature technology
• Timeline of states of matter and phase transitions
• Coldest temperature achieved on earth
• Pravasi Bharatiya Samman
• superconductivity