supported by the National Natural Science Foundation of China (Nos. 50971011 and 11174023);Beijing Natural Science Foundation (No. 1102025);Research Fund for the Doctoral Program of Higher Education of China (No. 20091102110038)
Bimetallic nanomaterials consisting of magnetic metals and noble metals have attracted much interest for their promising potentials in fields such as magnetic sensors, catalysts, optical detection and biomedical appli...
supported by the National Natural Science Foundation of China (Grant Nos.50971011,11174022 and 10974011);the Beijing Natural Science Foundation (Grant No.1102025);the State Key Laboratory of Software Development Environment (Grant No.SKLSDE-2011ZX-19);the Research Fund for the Doctoral Program of Higher Education of China(Grant No.20091102110038)
A new model of a quantum heat engine (QHE) cycle is established, in which the working substance consists of an interacting electrons system. One of our purposes is to test the validity of the second law of thermodyn...
supported by the National Natural Science Foundation of China (Grant No. 50971011);Beijing Natural Science Foundation (Grant No. 1102025);Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20091102110038);the Fundamental Research Funds for the Central Universities (Grant No. 11174023)
In this work,a focused ion beam(FIB)-scanning electron microscopy(SEM) dual beam system was successfully built by integrating a FIB column and a graphics generator onto a SEM.Real-time observation can be realized by S...
supported by the National Natural Science Foundation of China (Grant No. 50971011);the Beijing Natural Science Foundation (Grant No. 1102025);the Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20091102110038)
The point defects and their related physical properties in L10 FePt are investigated by molecular dynamics simulations based on an analytic bond-order potential. The calculated results agree well with the experimental...
supported by the National Natural Science Foundation of China (Grant No. 50971011);Beijing Natural Science Foundation (Grant No. 1102025);Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20091102110038)
Magnetite nanoparticles with different sizes and different assemblies were synthesized via hydrothermal method.Micromagnetic simulation shows the magnetite nanocubes with different sizes have different energy states,w...
supported by the National Natural Science Foundation of China (Grant Nos. 50971011 and 10874003);the Beijing Natural Science Foundation (Grant No. 1102025);the Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20091102110038)
In the present paper,we study the effect of element substitution for quarter-filled nanoclusters of perovskite manganite by introducing Jahn-Teller type of perturbation interaction to the double-exchange Hamiltonian.U...
supported by the National Natural Science Foundation of China (Grant Nos.50971011 and 10874006);Beijing Natural Science Foundation (Grant No.1102025);Research Fund for the Doctoral Program of Higher Education of China (Grant No.20091102110038)
Scanning near-field acoustic microscope (SNAM) combines the ultrasonic detection technology with scanning near-field microscopy. The main characteristic of such microscope is that the acoustic wave is produced or de...
Project(50971011) supported by the National Natural Science Foundation of China;Project(1102025) supported by Beijing Natural Science Foundation;Project(20091102110038) supported by the Research Fund for the Doctoral Program of Higher Education of China
The introduction of electron beam(EB)brings features of both simultaneous observation of ion milling process and improvement of ion-milling accuracy in a dual beam system consisting of focused ion beam(FIB)and scannin...