Course title
7M1004001
2D Superconductors

michael rudolf koblischka
Course content
Recent advances in materials fabrication have enabled the manufacturing of ordered 2D electron systems, such as heterogeneous interfaces, atomic layers grown by molecular beam epitaxy, exfoliated thin flakes and field-effect devices. These 2D electron systems are highly crystalline, and some of them, despite their single-layer thickness, exhibit a sheet resistance more than an order of magnitude lower than that of conventional amorphous or granular thin films. Here, we consider the recent developments in the field of highly crystalline 2D superconductors and highlight the unprecedented physical properties of these systems.
In particular, the quantum metallic state (or possible metallic ground state), the quantum Griffiths phase observed in out-of-plane magnetic fields and the superconducting state maintained in anomalously large in-plane magnetic fields.
These phenomena are examined in the context of weakened disorder and/or broken spatial inversion symmetry, followed by a discussion of how these unconventional properties make highly crystalline 2D systems promising platforms for the exploration of new quantum physics
and novel high-temperature superconductors.
Purpose of class
To learn highly crystalline 2D superconductors and highlight the unprecedented physical properties of these systems.
To learn the basics to understand artificially prepared superconducting materials
Goals and objectives
  1. Understanding of the properties of a new material class
  2. Learn the basics to understand artificially prepared superconducting materials
  3. -
Language
English
Class schedule

Class schedule HW assignments (Including preparation and review of the class.) Amount of Time Required
1. Introduction, crystal structures Review of the lecture 200minutes
2. Materials and physical properties Review of the lecture 190minutes
3. 2D materials and 2D-superconductivity Review of the lecture 190minutes
4. Anisotropy, pancake vortices, interlayer coupling Review of the lecture 190minutes
5. Preparation techniques for 2D superconductors I: cleaving Review of the lecture 190minutes
6. Preparation techniques for 2D superconductors II: MBE, CVD, ... Review of the lecture 190minutes
7. Electronic properties I: quantum metallic state Review of the lecture 190minutes
8. Electronic properties II: modelling the physical properties Review of the lecture 190minutes
9. Understanding the phenomena observed I: weakened disorder, broken inversion symmetry Review of the lecture 190minutes
10. Understanding the phenomena observed II: Topological superconductivity
11.) Van der Waals-Forces
12.) New artificial materials and possible properties
13.) Stacking of monolayers, possible properties, multifunctionality
14.) Presentation of already prepared examples
Review of the lecture 190minutes
11. Van der Waals-Forces Review of the lecture 190minutes
12. New artificial materials and possible properties Review of the lecture 190minutes
13. Stacking of monolayers, possible properties, multifunctionality Review of the lecture 190minutes
14. Presentation of already prepared examples
Final exam and discussion on the solutions
Preparation for final exam 200minutes
Total. - - 2680minutes
Relationship between 'Goals and Objectives' and 'Course Outcomes'

Attendance Discussion Final exam Total.
1. 30% 20% 50% 100%
2. 0%
3. 0%
Total. 30% 20% 50% -
Evaluation method and criteria
Evaluation will be performed on the basis of exam results, presentation, discussion during the lectures and class attendance.
Students need at least 60% of the full score to pass this course.
Textbooks and reference materials
The topic is too new for books, we will focus on recent review articles
Highly crystalline 2D superconductors
Yu Saito, Tsutomu Nojima & Yoshihiro Iwasa
Nature Reviews Materials volume 2, Article number: 16094 (2016)
Some scientific papers will be handed out
Prerequisites
No
Office hours and How to contact professors for questions
  • email: miko@shibaura-it.ac.jp
Regionally-oriented
Non-regionally-oriented course
Development of social and professional independence
  • Course that cultivates an ability for utilizing knowledge
  • Course that cultivates a basic problem-solving skills
Active-learning course
Course by professor with work experience
Work experience Work experience and relevance to the course content if applicatable
N/A N/A
Education related SDGs:the Sustainable Development Goals
    Last modified : Sat Mar 21 14:18:08 JST 2020