告诉标题:Permanent Magnets: the Past, Present and Future(永磁材质:
过去、未来和今天)报 告 人:J Ping
Liu(刘平)教师,U.S.A.周口大学阿灵顿分校邀 请
magnets are the oldest functional materials in human civilization.
However, the applications of permanent magnets are still rapidly growing
today. For energy-related applications and green technologies, stronger
permanent magnets are increasingly demanded. Nanostructured hard
magnetic materials are regarded as the next generation of permanent
magnets, based on the theoretical predictions and preliminary
experimental results. However, many technical challenges remain. We have
worked decade long in both the fundamental research and the materials
processing technologies of permanent magnets. Particularly, we started
the bottom-up approaches in fabrication of nanocomposite magnets. A
review will be given in our research in magnetic nanoparticle synthesis
and severe plastic deformation of bulk nanocomposite magnets. A
perspective on fabrication of anisotropic nanocomposite magnets with
super high energy density will be also discussed. 报告人简要介绍:J Ping
Materials、Physical Review
Magnetic Materials And Applications»由Springer出版公司出版)。附属类小部件:无

报告标题:Efficient energy-conversion near room-temperature with
transition metal based magnetic materials


题 目:2D ferromagnetism and spintronic devices based on van der Waals
heterostructures报告人:王澜教师(猎豹CS6MIT University,
Australia)主持人:赵宇军教授时 间:二零一八年四月三二十二日(周四)10:00地方:物理楼(1八号楼)贰楼贰一三室学术报告厅应接广大师生加入新资料讲坛,关于进行荷兰王国代尔夫特理教院Ekkes。!物理与光电大学二零一八年10月二十一日内容摘要:Two
dimensional (2D) van der Waals (vdW) materials, consisting of atomically
thin layers, have fascinating physical properties and intriguing
thickness-dependent characteristics. To date, research on these
materials has predominantly focused on various devices based on their
optical and electronic properties, whilst reports on magnetic and
spintronic devices based on 贰D vdW materials are scarce, because vdW
materials with desirable magnetic properties have yet to be found. By
performing anomalous Hall-effect transport measurements, we reveal that
the magnetic properties of single crystalline vdW Fe三GeTe二 vary
dramatically with thickness. Importantly, a single hard magnetic phase
with a near square-shaped magnetic loop, large coercivity (up to 550 mT
at 二 K) and strong perpendicular magnetic anisotropy were all observed
in Fe三GeTe二 nanoflakes. These merits make Fe三GeTe二 the first vdW
ferromagnetic material suitable for fabricating vdW magnetic
heterostructures. Based on this material, various spintronic devices has
been designed and fabricated.报告人简要介绍:Lan Wang was awarded a PhD
degree in Materials Sciences in 2005 at the University of Minnesota –
Twin Cities. After the defence of Wangs PhD thesis in Jan 200陆, Wang
became an Assistant Professor at Nanyang Technological University in
Singapore. He was the Principle Investigator of the Magnetic Materials
and Spintronics Lab for the whole period at Nanyang Technological
University (from 200陆 to 2014). Dr. Wang has published over 90 peer
reviewed articles in prestigious journals, including Nature
Communications, Physical Review Letters, Nano Letters, etc. In November
201肆, he joined 途胜MIT University as an Associate Professor of Physics in
the School of Science. Lan Wang is now the Leader of theme B of the A冠道C
CoE – Future Low Energy Electronics Technologies.His research interests
focus on various quantum materials, including topological insulators, 二D
semiconductors, etc. The aims are to understand the fundamental physics
of these novel materials and to fabricate the next generation prototype
electronic and spintronic devices.附属类小部件:无

报 告 人:Professor Ekkes Brück(Delft University of Technology,














Ekkes Brück教授,一九9一年获洛杉矶高校物经济学博士学位(Ph.
of Magnetism and Magnetic



题目:REE Critical Materials Recovery by Advanced Magnetic Separation

Magneto-caloric power conversion can be used to convert heat into
electricity that up to now was considered as waste. This new technology
therefore has the potential to significantly contribute to the energy
transition on a global scale.

报告人:Professor You Qiang,University of Idaho

With the advent of giant magneto-caloric effects (MCE) that occur in
conjunction with magneto-elastic or magneto-structural phase transition
of first order (FOT), room temperature heat-pump applications became
feasible. In this context the MnFe(P,X) system is of particular interest
as it contains earth abundant ingredients that are not toxic. This
material family derives from the Fe2P compound, a prototypical example
known since a long time to exhibit a sharp but weak FOT at 210 K


Magneto-caloric power-conversion calls for a somewhat different
combination of properties, in particular a large latent heat that is
favourable for a heat-pump, is detrimental for power conversion as a lot
of heat is needed to change the temperature. Yet a large change of
magnetization is required, which suggests one should either employ
materials exhibiting exchange inversion or second order materials.
Magnetically highly responsive materials in combination with the field
generated by a permanent magnet open the way to new technology for
magnetic refrigeration, heat pumps and power generation. Employing the
highly efficient coupling between the degrees of freedom of magnetic
spins and lattice vibrations in a solid, will render energy conversion
and energy generation technologies that get close to the theoretical

















招待广大师生参预!材质科学与工程高校二零一八年3月22二十四日告诉摘录:Rare Earth
Elements (REEs) have unique physicochemical properties that make them
essential elements in many high-tech components, such as electric
vehicle, power generator, M福特ExplorerI, screen display, hydride batteries and
energy storage. Traditional separation methods like centrifugation and
filtration are usually labor-consumptive, uneconomical and environmental
pollutant. Magnetic separation nanotechnology developed in our lab is an
upcoming technique for REE recycling. Magnetic nanosorbents exhibit
special superiority due to convenient separation by an external magnetic
田野(field).Advantages of magnetic nanosorbents are low inventory utilization
of nanosorbents, enhanced sorption efficiency, high selectivity, and low
production of secondary waste. This talk presents the study on our
lab-made magnetic nanosorbents – double coated magnetic nanoparticles
(dMNP) conjugated with diethylene triamine pentaacetic acid (DTPA) and
their potential to be used as effective sorbents to recycle trivalent
lanthanides from aqueous solutions. The REE sorption results show that
the magnetic nanosorbents possess a high stability, fast kinetics, and
high sorption efficiency in harsh environments. The metal sorption on
the nanosorbents is reversible so that the metal-loaded dMNP-DTPA can be
effectively regenerated by the dilute acids. The nanosorbents can be
reused for more than 1五 sorption/desorption cycles, which helps to
offset the synthesis cost and makes this technique cost-effective in REE
recycling. 专家简历:Dr. Qiang is a professor of Physics and
Environmental Science Program at the University of Idaho, US. He is the
director of UI Nanophysics and Nanomaterial Research Lab. He is a
Fellow,the Trustee and Chairman of Idaho Academy of Science and
Engineering.He received his MS degree 1玖八伍 at the Harbin Institute of
Technology and Chinese Academy of Space Technology, and Ph.D. degree in
19玖7 at the University of Freiburg, 德文y. Dr. Qiangs research focuses
on nanomagnetism and magnetic nanomaterials. He has studied magnetic
nanoparticles and nanocomposites for more than 30 years. His expertise
includes: synthesis of monodispersive nanoclusters and
nanocluster-assembled composites; characterization of magnetic and
optical properties as well as transport properties by conductivity,
optics, susceptibility and theoretical investigation. He applies
magnetic nanomaterials in energy, environmental and biomedical science
and nanotechnology.Presently Dr. Qiangs research interests are a)
Nano-nuclear technology and magnetic separation nanotechnology for used
nuclear fuel recycling; b) High temperature ferromagnetism and giant
magnetoresistance of semiconductor oxide nanomaterials; and c)
Iron-based magnetic nanoparticles for cancer treatment and environmental
remediation. He has published more than 1拾-refereed papers and 四 book
chapters, more than 130 invited talks at US and international
conferences, universities and institutions. He serves as editors for
scientific journals like IEEE Mag. Letters, Nanomaterials… and served on
national and international conference organizations and committees,
including APS, MWranglerS, CleanTech, NanoTech and IMC. He has organized and
chaired many conferences and sessions such as INTEEvoqueMAG, MMM, TMS, APS
and NW-APS meetings.附属类小部件:无