超导物理 第一讲 讲义
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Elements Alloys Inorganic compounds Organic compounds Polymers Biosystems?
2008-9-11
15
2008-9-11
16
Superconducting Critical Magnetic Field
2008-9-11
Measurement vs. Observation
2008-9-11
5
2008-9-11
Zero resistance, Really?
6
2008-9-11
7
2008-9-11
8
2008-9-11
9
Discovery of Superconductivity
Meissner Effect
Ideal Conductor “Flux frozen”
Magnetic levitation
Superconductor
2008-9-11
10
2008-9-11
11
2008-9-11
12
2008-9-11
13
2008-9-11
14
Superconductivity is not rare
2008-9-11
3
Discovery of Superconductivity
2008-9-11
19th Century: Down to lower T
First to liquefy “the permanent gas” Helium
Pt: residual resistance is related to the impurity
“超导物理”第一讲
Overview of Superconductivity
浙江大学凝聚态物理研究所CGH
课程介绍
参考书: 1) 张裕恒：《超导物理》，中国科技大学出版社 2) 章立源等：《超导物理学》，电子工业出版社 3) 张其瑞：《高温超导电性》，浙江大学出版社 4) M. Tinkham: “Introduction to Superconductivity”,
2008-9-11
29
Superconducting quantum interference device (SQUID)
2008-9-11
Threshold for SQUID: 10-14 T
Magnetic field of heart:10-10 T
Magnetic field of brain: 10-13 T
17
Definition of Tc, Hc and Jc
2008-9-11
18
Type I and Type II Superconductors
2008-9-11
19
Vortex State for Type II Superconductors
2008-9-11
20
2008-9-11
21
First published in 1952
Baidu Nhomakorabea2008-9-11
23
2003 Nobel Laureates for Physics
Alexei A. Abrikosov Vitaly L. Ginzburg
USA and Russia
Russia
Anthony J. Leggett United Kingdom and USA
McGraw-Hill, Inc. 考试等：
2008-9-11
2
Outline
Discovery of Superconductivity Development of Superconducting Materials Basic Properties of Superconductors Phenomenological Theories Microscopic Theories New Challenges (HTSC)
John Bardeen Leon Neil Cooper John Robert Schrieffer
2008-9-11
28
Josephson Effect
1973 Nobel Prize for Physics
Completed the great work as a postgraduate!
2008-9-11
24
Theory of Superconductivity
Phenomenological Theory London Theory Ginzberg-Landau-Abricosov-Gorkov Theory
Microscopic Theory BCS Theory Other Theories Macroscopic Quantum Phenomenon
Vortex Pinning for Type II Superconductors
To induce defects to pin the vortices: Increasing Jc; Superconducting magnet
2008-9-11
22
Theoretical prediction of vortices in type II superconductors
Mercury is easy to purified
Discovery of SC in Hg in 1911
4
Discovery of Superconductivity
Zero Electrical Resistance
H. K. Onnes, Commun. Phys. Lab.12,120, (1911)
=(r)=Aei(r)
2008-9-11
25
BCS Theory of Superconductivity
2008-9-11
26
超导机制－Cooper电子对
动量空间
实空间
正常态
2008-9-11
超导态
27
BCS Theory of Superconductivity
1972 Nobel Prize for Physics
30
Discovery of HTSC
Background Theory: Little, Ginzberg, … Experiments:
Oxides, the ceramic superconductors Ba(Pb,Bi)O3; LixTi2O4
2008-9-11
15
2008-9-11
16
Superconducting Critical Magnetic Field
2008-9-11
Measurement vs. Observation
2008-9-11
5
2008-9-11
Zero resistance, Really?
6
2008-9-11
7
2008-9-11
8
2008-9-11
9
Discovery of Superconductivity
Meissner Effect
Ideal Conductor “Flux frozen”
Magnetic levitation
Superconductor
2008-9-11
10
2008-9-11
11
2008-9-11
12
2008-9-11
13
2008-9-11
14
Superconductivity is not rare
2008-9-11
3
Discovery of Superconductivity
2008-9-11
19th Century: Down to lower T
First to liquefy “the permanent gas” Helium
Pt: residual resistance is related to the impurity
“超导物理”第一讲
Overview of Superconductivity
浙江大学凝聚态物理研究所CGH
课程介绍
参考书: 1) 张裕恒：《超导物理》，中国科技大学出版社 2) 章立源等：《超导物理学》，电子工业出版社 3) 张其瑞：《高温超导电性》，浙江大学出版社 4) M. Tinkham: “Introduction to Superconductivity”,
2008-9-11
29
Superconducting quantum interference device (SQUID)
2008-9-11
Threshold for SQUID: 10-14 T
Magnetic field of heart:10-10 T
Magnetic field of brain: 10-13 T
17
Definition of Tc, Hc and Jc
2008-9-11
18
Type I and Type II Superconductors
2008-9-11
19
Vortex State for Type II Superconductors
2008-9-11
20
2008-9-11
21
First published in 1952
Baidu Nhomakorabea2008-9-11
23
2003 Nobel Laureates for Physics
Alexei A. Abrikosov Vitaly L. Ginzburg
USA and Russia
Russia
Anthony J. Leggett United Kingdom and USA
McGraw-Hill, Inc. 考试等：
2008-9-11
2
Outline
Discovery of Superconductivity Development of Superconducting Materials Basic Properties of Superconductors Phenomenological Theories Microscopic Theories New Challenges (HTSC)
John Bardeen Leon Neil Cooper John Robert Schrieffer
2008-9-11
28
Josephson Effect
1973 Nobel Prize for Physics
Completed the great work as a postgraduate!
2008-9-11
24
Theory of Superconductivity
Phenomenological Theory London Theory Ginzberg-Landau-Abricosov-Gorkov Theory
Microscopic Theory BCS Theory Other Theories Macroscopic Quantum Phenomenon
Vortex Pinning for Type II Superconductors
To induce defects to pin the vortices: Increasing Jc; Superconducting magnet
2008-9-11
22
Theoretical prediction of vortices in type II superconductors
Mercury is easy to purified
Discovery of SC in Hg in 1911
4
Discovery of Superconductivity
Zero Electrical Resistance
H. K. Onnes, Commun. Phys. Lab.12,120, (1911)
=(r)=Aei(r)
2008-9-11
25
BCS Theory of Superconductivity
2008-9-11
26
超导机制－Cooper电子对
动量空间
实空间
正常态
2008-9-11
超导态
27
BCS Theory of Superconductivity
1972 Nobel Prize for Physics
30
Discovery of HTSC
Background Theory: Little, Ginzberg, … Experiments:
Oxides, the ceramic superconductors Ba(Pb,Bi)O3; LixTi2O4