Rare-earth-free ferrimagnetic Mn4N spintronics / Takashi Suemasu.

Format:

• Book

Author/Creator:

• Sato, Takuma, 1991- author.

Contributor:

• Institute of Physics (Great Britain), publisher.

Series:

• IOP (Series). Release 23.
• IOP ebooks. 2023 collection.
• [IOP release $release]
• IOP ebooks. [2023 collection]

Language:

English

Subjects (All):

• Ferrimagnetism.
• Spintronics.
• Metals--Properties.

Physical Description:

1 online resource (various pagings) : illustrations (some color).

Place of Publication:

Bristol [England] (Temple Circus, Temple Way, Bristol BS1 6HG, UK) : IOP Publishing, [2024]

System Details:

• Mode of access: World Wide Web.
• System requirements: Adobe Acrobat Reader, EPUB reader, or Kindle reader.

Biography/History:

Takashi Suemasu obtained his Bachelor of Engineering in 1991, Master of Engineering in 1993, and PhD degree in 1996 from the Tokyo Institute of Technology. He was then a research associate and Associate Professor at University of Tsukuba, before becoming a full Professor in 2010. He was also previously a Senior Scientific Research Specialist of the Ministry of Education, Culture, Sports, Science and Technology and is currently a Program officer at JSPS Research Centre for Science Systems. Professor Suemasu has published more than 480 research articles and has an h-index of 45 (Web of Science).

Summary:

Since the discovery of perpendicular magnetic anisotropy in Mn4N epitaxial films in 2012, Mn4N has attracted much attention as a rare-earth free new spintronics material. The recent record velocity of current-induced magnetic wall motion achieved on Mn4N and compensated Mn4N microstrips at room temperature has attracted a great deal of attention, and spin transfer torques have renewed interest. Mn4N shows interesting phenomena that magnetization and angular momentum compensation due to impurity doping occur at room temperature. It also has other very unusual properties such as a negative thermal expansion coefficient. In addition, a very large number of different kinds of mixed crystals have been formed. Specifically, they include Mn4N doped with various impurities (Fe, Co, Ni, Cu, Zn, Al, In, Ga, Ge, Sn, Pd, Ag, Sb, Pt, Au, Gd, and Dy).

Contents:

• 1. Introduction
• 1.1. Origin of magnetic moment
• 1.2. Magnetic properties of materials
• 1.3. Magnetic domain wall dynamics
• 1.4. Spintronics applications of ferrimagnet
• 1.5. Theory of current-induced DW motion
• 1.6. Features of Mn4N
• 2. Research history of Mn4N-based mixed crystals : several research topics
• 2.1. Non-collinear antiferromagnetic structure of Mn3AN and Kagome lattice
• 2.2. Negative thermal expansion (NTE) and magnetovolume effects (MVE)
• 2.3. Measurement of thermal coefficient of resistivity (TCR) and magnetic order
• 3. Crystal and magnetic structure of Mn4N
• 3.1. Crystal structure of antiperovskite transition metal nitrides
• 3.2. Mn4N bulk crystals
• 3.3. Mn4N thin films
• 3.4. Summary
• 4. Ultrafast CIDWM in Mn4N strips
• 4.1. Fabrication process of Hall bars
• 4.2. Equivalency between current and magnetic field
• 4.3. Spin-transfer torque using direct current (DC)
• 4.4. Spin-transfer torque using pulsed current
• 4.5. Summary
• 5. Growth and characterization of compensated Mn4N epitaxial films
• 5.1. Mn4-xZxN (Z=Ge, Ga, Zn, Cu, Ni, Sn, In, Cd, Ag, Pd) powders
• 5.2. Mn4-xNixN epitaxial films
• 5.3. Mn4-xCoxN epitaxial films
• 5.4. Summary
• 6. Growth and characterization of nonmagnetic element doped Mn4N epitaxial films
• 6.1. Mn4-xCrxN epitaxial films
• 6.2. Mn4-xInxN epitaxial films
• 6.3. Mn4-xAuxN epitaxial films
• 6.4. Mn4-xSnxN epitaxial films
• 6.5. Summary
• 7. Ultrafast CIDWM in compensated Mn4N strips
• 7.1. Reaching the compensation point
• 7.2. Growth and structural characterization
• 7.3. Magnetization and transport measurements
• 7.4. Current induced domain wall motion
• 7.5. Analytical modeling of the two sub-lattice system
• 7.6. First-principles calculations and analysis
• 7.7. Analytical modeling of Joule heating in Mn4N wires
• 7.8. Summary
• 8. Properties of Mn4N-based mixed crystals sorted by doped element
• 8.1. Mn4-xAlxNy
• 8.2. Mn4-xCrxNy
• 8.3. Mn4-xFexN
• 8.4. Mn4-xCoxN
• 8.5. Mn4-xNixN
• 8.6. Mn4-xCuxN
• 8.7. Mn4-xZnxN
• 8.8. Mn4-xGaxN
• 8.9. Mn4-xGexN
• 8.10. Mn4-xRhxN
• 8.11. Mn4-xPdxN
• 8.12. Mn4-xAgxN
• 8.13. Mn4-xInxN
• 8.14. Mn4-xSnxN
• 8.15. Mn4-xSbxN
• 8.16. Mn4-xPtxN
• 8.17. Mn4-xAuxN
• 8.18. Mn4-xGdxN
• 8.19. Mn4-xDyxN
• 9. Recent progress
• 9.1. Ultrathin film growth
• 9.2. Magnetic skyrmions and Dzyaloshinskii Moriya interaction
• 9.3. SOT switching
• 9.4. Anomalous Nernst effect
• 9.5. Modulation of the magnetic properties by light element doping
• 9.6. Perspective.

Notes:

• "Version: 20240201"--Title page verso.
• Includes bibliographical references.
• Title from PDF title page (viewed on March 4, 2024).

Other Format:

Print version:

ISBN:

• 9780750354776
• 9780750354769

OCLC:

1424965858

Access Restriction:

Restricted for use by site license.