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Call for PhD candidate in photomagnetic systems (University of Bordeaux, France)
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大家好。波尔多大学的Corine Mathonière教授希望招收一位CSC资助的博士生。博士课题研究基于配位金属的光磁系统。实验室在这个课题方面经验很多，并且有机会做synchrotron。 完整的proposal，Prof. Mathonière的简历，以及波尔多大学－CSC项目申请 见附件。 如需了解更多信息，请直接联系Prof. Mathonière。 另外拜托大家多多转发，谢谢！ CSC Ph Project proposed by Corine Mathonière, University of Bordeaux. Photomagnetic compounds based on [M(CN)8]4- building blocks M = Mo(IV) and W(IV) The photoswitchable molecular compounds are an interesting class of materials because they can be used in data storage devices or sensors. In general, these systems have two (or more) distinct electronic states that can be addressed by temperature, visible light, pressure, electric field… When the two states have different magnetic behaviors, the systems are called photomagnetic compounds. Some of these photomagnetic systems are based on [M(CN)8]4- complexes linked to 3d metal ions and show an exceptional stability on their photo-induced states. Nevertheless, the electronic phenomenon at the origin of the photomagnetism in these systems is still a debate. Some studies affirm that an metal-metal electron transfer occurs between the [M(CN)8]4-and its 3d ionic neighbours, [1] and others propose a spin crossover in the [M(CN)8]4- unit.[2,3] The proposed phD work consists of elucidating the mechanism responsible for the switching process in the [M(CN)8]4-/3d systems. The phD student will synthetize known and new compounds to have a large family of systems necessary for comparison and understanding of the photomagnetic properties. Then he(she) will study the photo-induced properties using different techniques: X-ray diffraction, spectroscopic measurements (IR, Raman, optical spectroscopy), cyclic voltammetry and magnetism. A special attention will be also devoted to the development of new systems with optimized switching properties. During the phD, measurements on synchrotron beamlines will be planned to perform local spectrocopies XANES and XMCD measurements in collaboration with the group of P. Sainctavit (Univ. Paris VI). [1] J. M. Herrera, V. Marvaud, M. Verdaguer, J. Marrot, M. Kalisz, C. Mathonière, Angew. Chem. Int. Ed., 2004, 43, 5468. [2] M.-A. Arrio, J. Long, C. Cartier dit Moulin, A. Bachschmitt, V. Marvaud, A. Rogalev, C. Mathonière, F. Wilhem, P. Sainctavit, J. Phys. Chem. C, 2010, 114, 593. [3] O. Stefanczyk, A. M. Majcher, M. Rams, W. Nitek, C. Mathonière, B. Sieklucka, J. Mater. Chem. C, 2015, 3, 8712. |
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2016-01-23 02:03:35, 475.07 K
2016-01-23 02:03:39, 69.66 K
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