＂The joy of scientific research makes me unable to stop＂

　　Interviewing Xue Qikun was Tsinghua Garden at the end of May.In the green trees, the famous physicist who found the abnormal quantum Hall effect used his in -depth explanation to bring reporters into the physical world of Xuan’ao.

　　”If the electronics compares the electronics, the electronic movement in the computer chip is irregular. Just like people walking in the messy farmers’ market, they will always take detours and encounter people, and they will not be able to get hot. The quantum Hall effect will beIt is a high -speed road, and the electrons can move forward in the direction of the lane.The research results will promote the development of a new generation of low -energy transistors and electronic components, which may accelerate the process of information technology revolution. “

　　At the end of 2012, the team led by Xue Qikun found the quantum abnormal Hall effect in the experiment for the first time, and obtained a major breakthrough in the field of basic physics.For more than two years since then, the research team of 4 internationally renowned universities including the University of Tokyo, the University of Tokyo, the University of California, Los Angeles, MIT and Stanford University successively reproduced the results of the experiment, which further proved the reliability of the experiment.sex.

　　Xue Qikun did not stop the exploration.”Scientific research is a happy thing, and we can’t stop at all.” He said, “At present, the temperature of the quantum abnormal Hall effect is 30mk (negative 273.12 ° C, which is only 0.03 ° C higher than the absolute zero). Our goal is to be higher.The liquid -liquid temperature area, liquid nitrogen temperature area, and even the quantum abnormal Hall effect at room temperature, so as to be used in actual application. “

　　Yimengshan Youth’s Cherry theory

　　May is the season of cherry listing, and Xue Qikun uses their research goals to compare their research goals as sweet cherries on the top of the mountain.

　　The quantum abnormal Hall effect requires the material itself to be magnetic and insulator.Because the magnet is usually a conductor, this is a self -conflict requirement.The internal is the emergence of the new material of the inner and interface is the new quantum material of the conductor, which may be possible to achieve the requirements of this contradiction.Since 2008, Zhang Shengsheng and other theoretical physicists have proposed a plan for realizing the abnormal Hall effect of quantum atomic Hall with magnetic topology insulation.

　　Xue Qikun said: “This is the cherry painted by the theoretical physicist. There may be cherries on the top of the mountain, but is there any, I don’t know.”

　　How can the mountain road risk block tortuous, how can we make hard work for an uncertain goal?”We can work hard in this direction and achieve better goals, but in the process of going to this goal, there are a lot of gains in itself. We may see new scenery or find peach trees in the Mid -Mountains and pick them to peaches.”Xue Qikun’s answer is very open -minded.

　　For open -minded and hard -working people, reality often returns to them surprises.

　　Xue Qikun, Wang Yayu of Tsinghua University, and Ma Xucun from the Chinese Academy of Sciences, and Lu Li, each of the four presidents, have spent more than 4 years, and used the “molecular bouquet extension” method to make high fusion of 4 elements high.The purity single crystal material finally achieved the perfect experimental results.After the statistics, the experimental team made a total of more than 1,000 magnetic doping sample measurements. The samples that failed during the growth stage could not be calculated at all.

　　This experiment requires extremely precise material growth control technology. Xue Qikun, who has been growing for more than 20 years, provides international leading technical reserves: in early 2002, Xue Qikun and others have created a fusion molecular beam latter equipment, scanning tunnel microscope and angle resolutionThe combined system of the three experimental equipment of the optoelectronics spectrum, the development and skilled application of the system played an important role in the precision control of topological insulation materials.

　　Not only did they pick up the cherry at the top of the mountain, they also took the peaches of the Mid -Mountains.Xue Qikun said: “During the experiment, we found some special laws of magnetic topology insulators, which can be used for its nature regulation. It also observes some new interesting phenomena, such as zero quantum resistance platform. This is a place where theoretical physics is not foreseeable.”” “

　　”The moment the cherry is the most exciting, but we have to enjoy every stage of climbing mountain climbing.” In fact, Xue Qikun, born in Mengyin County, Shandong Province in 1963, was originally a young man in Yimeng Mountain.The mountain climbing is almost instinct for him, and the toughness and openness needed for the mountain climbing is engraved with his gene.

　　He had been in the exam for three consecutive years before the exam.After graduating from Shandong University in 1984, he was assigned to Qufu Normal University as an assistant to work and took postgraduate entrance examinations.Recalling the original defeat, he laughed: “I am a child from the mountain.

　　”7-11″ Academician’s Celebration view

　　At the age of 35, he became a professor and 41 years old became a member of the Chinese Academy of Sciences.Xue Qikun’s scientific research road was rough, but there was no shortage of setbacks.

　　After being admitted to the Institute of Physics of the Chinese Academy of Sciences, his scientific research path is not a passion.When he graduated from a master’s degree in 1990, Xue Qikun, who had already had a family and children, chose to continue reading.

　　In 1992, Professor Sakurai, a professor at Northeast University in Japan, came to China to visit China. He wanted to select the doctoral students jointly trained from China and Japan from the Chinese Academy of Sciences. Xue Qikun got the opportunity to study in Northeast University in Japan.

　　This is an important turning point in Xue Qikun’s academic career, but this turning point is full of sweat and suffering.

　　Sakurai Lif’s laboratory is called the “7-11” laboratory. Students must go to the laboratory before 7 o’clock every day in the morning, and they can leave after 11pm. There is no lunch at noon. There is only eating time.

　　While being tortured by the “7-11” devil-like schedule, Xue Qikun also had to endure the spiritual torture of not understanding Japanese.Because he couldn’t understand the instructions of the mentor, he was often severely accused by the mentor.As a result, when the instructor and his classmates did experiments together, he did not dare to touch the instrument, only watching it on the side.

　　Many classmates who went to Japan could not stand such a torment and “escaped” back.Xue Qikun found the power from the text that he just went to school to hear him: “I am Chinese, I love my motherland …”

　　He chose to stay and fight for the Chinese.He first arrived in the laboratory every day, and the last one left.Gradually, the mentor’s words can be understood, and the experimental instruments will be operated. With solid skills and extraordinary efforts, he finally publishes papers in the world’s top academic journals and obtains a doctorate degree smoothly.

　　In 1996, Xue Qikun began to emerge in the international physics world.In 1999, he was selected as the “Hundred People Plan” of the Chinese Academy of Sciences and returned to work.

　　For more than ten years back to China, he maintained the “7-11” schedule whether he was in the Chinese Academy of Sciences or in Tsinghua University.Academician Zhu Bangfen, the former director of the Department of Physics at Tsinghua University, said: “I used to travel with him and returned to Beijing at 12 pm. He still insisted on going to the laboratory to see it.”

　　”7-11″ all year round, the world thinks that it is suffering, but Xue Qikun is happy.”When a physical phenomenon is different from usual, I will try to explain it, just like reading a detective novel, determining the suspect, and derived what he did.”Xue Qikun said that scientific exploration is as interesting as detecting the mystery. When you go deep, you will get great happiness.

　　The new expectation of “Qian Xuesen’s question”

　　Xue Qikun is recognized as high emotional scientists in the academic circle.He is always good at finding top partners, and knowing people and good at all, so that everyone can use them.For example, in the scientific research team of quantum abnormal Hall effects, young scientists such as Ma Xucun, Chen Xi, Wang Ya, and He Ke are very good, and they all released their creativity to the greatest extent.

　　”Scientists not only need IQ, but also emotional intelligence. Scientific research, especially scientific experiments, require team operations. In addition, high emotional intelligence is also conducive to international academic exchanges and students.” As a professor, Xue Qikun is training to trainWhen students were strictly required to strictly require their basic skills, they also attached great importance to the cultivation of emotional intelligence.

　　”To cultivate teamwork in essence, you have to learn to deal with people, you have to cooperate with many people on the instrument, and learn how to do scientific research.” Xue Qikun often educates students like this, “In the future, when you come from the executorWhen becoming a commander, you will find that learning to do such high -level scientific research is more important, and it is more important than publishing papers. “

　　Chang Cuizu’s experience confirmed this judgment.He is a doctoral doctor of Xue Qikun. After the quantum abnormal Hall effect experiments were successful, he graduated from his PhD and went to MIT to be a doctorate.A “quasi -commander”.MIT’s professor was very satisfied with Chang Cuizu’s work. When Xue Qikun went to the United States, he asked him to dinner and thank him for cultivating first -class talents.

　　”Why can’t our schools always cultivate outstanding talents?” This is a heavy question that Qian Xuesen had raised in 2005.Xue Qikun, who is currently the vice president of Tsinghua University, has an optimistic attitude towards this issue and hopes to be in the current young students.

　　”Answer’ Qian Xuesen’s question ‘is in time. Science must not be a little bit tiger, and talent training must be progressing step by step. I have not accepted the formal system scientific training very late. The gap is the same. They are the same. They have high level of intelligence and have been completely scientific training since childhood. my country’s investment in scientific research in recent years is far from before. Xue Qikun believes that as long as the development momentum of our country is maintained, a new generation of researchers standing on the same starting line as foreign countries will make greater contributions in the future.(Economic Daily reporter Li Huimin)