WSP05400 Magnetism and Spintronics

Hiroshima University Syllabus

Japanese

Academic Year 2025Year School/Graduate School Graduate School of Advanced Science and Engineering (Master's Course) Division of Advanced Science and Engineering Quantum Matter Program

Lecture Code WSP05400 Subject Classification Specialized Education

Subject Name 磁性・スピン工学特論

Subject Name
（Katakana）ジセイ・スピンコウガクトクロン

Subject Name in
English Magnetism and Spintronics

Instructor PHAM NAM HAI,See the "Class Schedule" of the syllabus

Instructor
(Katakana) ファム　ナムハイ,シラバスジュギョウケイカクトウサンショウ

Campus Across Campuses (videoconferencing, etc.) Semester/Term 1st-Year, Second Semester, 3Term

Days, Periods, and Classrooms (3T) Tues5-6

Lesson Style Lecture Lesson Style
(More Details) Online (simultaneous interactive)

Credits 1.0 Class Hours/Week 2 Language of Instruction E : English

Course Level 6 : Graduate Advanced

Course Area（Area） 25 : Science and Technology

Course Area（Discipline） 12 : Electronics

Eligible Students 博士課程前期学生

Keywords Ferromagnets, magnetic recording, magnetic sensor, giant magnetoresistance, tunneling magnetoresistance, anomalous Hall effect, spin Hall effect, MRAM, spin transfer torque

Special Subject for Teacher Education 　 Special Subject 　

Class Status
within Educational
Program
(Applicable only to targeted subjects for undergraduate students)
Criterion referenced
Evaluation
(Applicable only to targeted subjects for undergraduate students)

Class Objectives
/Class Outline The magnetic dipole moment of electrons originates from their orbital and spin degrees of freedom. In magnetism, the macroscopic ordering of magnetic dipole moments is controlled for applications to magnetic recording. On the other hand, spintronics deals with spin-polarized currents for applications to magnetic sensors and magnetoresistive random access memory (MRAM).
In this course, magnetic and spintronic properties of solids are lectured based on quantum mechanics and solid state physics. Fundamental theories of magnetism, and spintronic phenomena (giant magnetoresistance, tunneling magnetoresistance, anomalous Hall effect, spin Hall effect) will be lectured. Magnetic and spintronic devices (magnetic recording, magnetic sensor, MRAM) will be explained.

Class Schedule Class 1 Angular momentum of electrons (orbital and spin) as magnetic dipoles, paramagnetism, exchange interaction and ferromagnetism Understand that angular momentums of electron, such as orbit and spin, are regarded as origins of atomic magnetic dipole moment. Understand paramagnetism as the most simple alignment of magnetic dipole moments under a magnetic field. Understand exchange interaction of electrons as the origin of ferromagnetism.
Class 2 Magnetic anisotropy　 Understand magnetic anisotropies of materials and their origins.
Class 3 Spin-dependent transport phenomena I: Giant magnetoresistance effect 　- Giant magnetoresistance in ferromagnetic metal / non-magnetic metal / ferromagnetic metal artificial lattices Explain the giant magnetoresistance effect and its microscopic mechanism
Class 4 Spin-dependent transport phenomena II: Tunneling magnetoressitance effect - Tunneling magnetoresistance effect in ferromagnet / insulator / ferromagnet magnetic tunnel junctions Explain the tunneling magnetoresistance effect and its microscopic mechanism
Class 5 Spin-dependent transport phenomena III: Anomalous Hall effect and Spin Hall effect - Anomalous Hall effect and spin Hall effect due to intrinsic / extrinsic mechanism Explain the anomalous Hall effect and spin Hall effect and its microscopic mechanism
Class 6 Magnetoresistive random access memory (MRAM) I: structure and operating principle - MRAM device structure, operating principle, and materials Explain the device structure, operating principle, and materials of MRAM
Class 7 Magnetoresistive random access memory (MRAM) II: spin-transfer torque - Spin-transfer torque as a new data writing mechanism for MRAM Explain the spin-transfer torque phenomenon as a new data writing mechanism for MRAM

Text/Reference
Books,etc. Textbook(s)：None required.
Reference books, course materials, etc.：
Charles, Kittel. Introduction to Solid State Physics.　John Wiley & Sons, Inc. ISBN-13: 978-0471415268
Chikazumi, Soshin. Physics of Ferromagnetism. Oxford University Press. ISBN-13: 978-0199564811
Stephen, Blundel. Magnetism in Condensed Matter. Oxford University Press. ISBN-13: 978-0198505914

PC or AV used in
Class,etc.

(More Details)

Learning techniques to be incorporated

Suggestions on
Preparation and
Review To enhance effective learning, students are encouraged to spend approximately 100 minutes preparing for class and another 100 minutes reviewing class content afterwards (including assignments) for each class.
They should do so by referring to textbooks and other course material.

Requirements This course is part of the Integrated Green-niX College program (a joint program with Institute of Science Tokyo, Toyohashi University of Technology, Nagaoka University of Technology and Meiji University, based on a memorandum of understanding for credit transfer related to semiconductor talent development). Please note that you cannot register for this course unless you have completed the special audit student application procedure at your respective university beforehand.

Grading Method Students will be assessed on their understanding of types of magnetism, spin-dependent scattering and transport phenomena in magnetic materials, and their applications to spintronics. Students’ course scores are based on reports (100%).

Practical Experience

Summary of Practical Experience and Class Contents based on it

Message

Other

Please fill in the class improvement questionnaire which is carried out on all classes.
Instructors will reflect on your feedback and utilize the information for improving their teaching.

Academic Year	2025Year	School/Graduate School	Graduate School of Advanced Science and Engineering (Master's Course) Division of Advanced Science and Engineering Quantum Matter Program
Lecture Code	WSP05400	Subject Classification	Specialized Education
Subject Name	磁性・スピン工学特論
Subject Name （Katakana）	ジセイ・スピンコウガクトクロン
Subject Name in English	Magnetism and Spintronics
Instructor	PHAM NAM HAI,See the "Class Schedule" of the syllabus
Instructor (Katakana)	ファム　ナムハイ,シラバスジュギョウケイカクトウサンショウ
Campus	Across Campuses (videoconferencing, etc.)	Semester/Term	1st-Year, Second Semester, 3Term
Days, Periods, and Classrooms	(3T) Tues5-6
Lesson Style	Lecture	Lesson Style (More Details)	Online (simultaneous interactive)

Credits	1.0	Class Hours/Week	2	Language of Instruction	E : English
Course Level	6 : Graduate Advanced
Course Area（Area）	25 : Science and Technology
Course Area（Discipline）	12 : Electronics
Eligible Students	博士課程前期学生
Keywords	Ferromagnets, magnetic recording, magnetic sensor, giant magnetoresistance, tunneling magnetoresistance, anomalous Hall effect, spin Hall effect, MRAM, spin transfer torque
Special Subject for Teacher Education		Special Subject
Class Status within Educational Program (Applicable only to targeted subjects for undergraduate students)
Criterion referenced Evaluation (Applicable only to targeted subjects for undergraduate students)
Class Objectives /Class Outline	The magnetic dipole moment of electrons originates from their orbital and spin degrees of freedom. In magnetism, the macroscopic ordering of magnetic dipole moments is controlled for applications to magnetic recording. On the other hand, spintronics deals with spin-polarized currents for applications to magnetic sensors and magnetoresistive random access memory (MRAM). In this course, magnetic and spintronic properties of solids are lectured based on quantum mechanics and solid state physics. Fundamental theories of magnetism, and spintronic phenomena (giant magnetoresistance, tunneling magnetoresistance, anomalous Hall effect, spin Hall effect) will be lectured. Magnetic and spintronic devices (magnetic recording, magnetic sensor, MRAM) will be explained.
Class Schedule	Class 1 Angular momentum of electrons (orbital and spin) as magnetic dipoles, paramagnetism, exchange interaction and ferromagnetism Understand that angular momentums of electron, such as orbit and spin, are regarded as origins of atomic magnetic dipole moment. Understand paramagnetism as the most simple alignment of magnetic dipole moments under a magnetic field. Understand exchange interaction of electrons as the origin of ferromagnetism. Class 2 Magnetic anisotropy　 Understand magnetic anisotropies of materials and their origins. Class 3 Spin-dependent transport phenomena I: Giant magnetoresistance effect 　- Giant magnetoresistance in ferromagnetic metal / non-magnetic metal / ferromagnetic metal artificial lattices Explain the giant magnetoresistance effect and its microscopic mechanism Class 4 Spin-dependent transport phenomena II: Tunneling magnetoressitance effect - Tunneling magnetoresistance effect in ferromagnet / insulator / ferromagnet magnetic tunnel junctions Explain the tunneling magnetoresistance effect and its microscopic mechanism Class 5 Spin-dependent transport phenomena III: Anomalous Hall effect and Spin Hall effect - Anomalous Hall effect and spin Hall effect due to intrinsic / extrinsic mechanism Explain the anomalous Hall effect and spin Hall effect and its microscopic mechanism Class 6 Magnetoresistive random access memory (MRAM) I: structure and operating principle - MRAM device structure, operating principle, and materials Explain the device structure, operating principle, and materials of MRAM Class 7 Magnetoresistive random access memory (MRAM) II: spin-transfer torque - Spin-transfer torque as a new data writing mechanism for MRAM Explain the spin-transfer torque phenomenon as a new data writing mechanism for MRAM
Text/Reference Books,etc.	Textbook(s)：None required. Reference books, course materials, etc.： Charles, Kittel. Introduction to Solid State Physics.　John Wiley & Sons, Inc. ISBN-13: 978-0471415268 Chikazumi, Soshin. Physics of Ferromagnetism. Oxford University Press. ISBN-13: 978-0199564811 Stephen, Blundel. Magnetism in Condensed Matter. Oxford University Press. ISBN-13: 978-0198505914
PC or AV used in Class,etc.
(More Details)
Learning techniques to be incorporated
Suggestions on Preparation and Review	To enhance effective learning, students are encouraged to spend approximately 100 minutes preparing for class and another 100 minutes reviewing class content afterwards (including assignments) for each class. They should do so by referring to textbooks and other course material.
Requirements	This course is part of the Integrated Green-niX College program (a joint program with Institute of Science Tokyo, Toyohashi University of Technology, Nagaoka University of Technology and Meiji University, based on a memorandum of understanding for credit transfer related to semiconductor talent development). Please note that you cannot register for this course unless you have completed the special audit student application procedure at your respective university beforehand.
Grading Method	Students will be assessed on their understanding of types of magnetism, spin-dependent scattering and transport phenomena in magnetic materials, and their applications to spintronics. Students’ course scores are based on reports (100%).
Practical Experience
Summary of Practical Experience and Class Contents based on it
Message
Other
Please fill in the class improvement questionnaire which is carried out on all classes. Instructors will reflect on your feedback and utilize the information for improving their teaching.

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