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Tan Yuen

Associate Professor of Physics

Ph.D., Temple University

SERC, Room 450
1925 N. 12th Street 
Philadelphia, PA 19122
215-204-5182
tyuen@temple.edu


Research Interests

My research interests are mainly on the magnetic and transport properties of some novel metal-organic coordination polymers. The study of these polymers is a very active topic in current interdisciplinary materials research. This is important not only because of its great potential for the discoveries of new functional materials, but also because it provides a large variety of new low dimensional systems for the fundamental magnetism research.

We have successfully characterized a number of new network structures that involve transition metal or rare earth elements in coordination with organic ligands and spacers. They exhibit very interesting properties arising from various magnetic interactions in 1D, 2D, or 3D nature. Furthermore, long range ferro- or antiferro-magnetic orderings with rather high critical temperature and high coercivity have been found in several of these systems. The experimental techniques used in our studies include X-ray diffraction , Mössbauer spectroscopy and measurements of magnetization, heat capacity, and electrical resistivity. The results are analyzed and interpreted using various theoretical models.

My other research interests include experimental investigations of highly correlated electronic systems including actinide/rare-earth intermetallic compounds and high Tc superconductivity related ceramic compounds.

Key Publications

1. Tan Yuen, C.L. Lin, J.E. Crow, G.N. Myer, R.E. Salomon, P. Schlottmann, N. Bykovetz, Warren N. Herman, Mössbauer Study of the Lattice Dynamics in 119Sn-doped Superconducting and Nonsuperconducting YBa2Cu3O7-d, Phys. Rev. Rapid Commun. B37, 3770 (1988)

2. Tan Yuen, N. Bykovetz, G.Y. Jiang, C.L. Lin, P.P. Wise and J.E. Crow, A 119Sn Mössbauer Study of Magnetic to Nonmagnetic Transition in U(In1-xSnx)3, Physica B 171 (1991), 367

3. Tan Yuen, C.L. Lin, T. Mihalisin and N. Bykovetz, Magnetic Susceptibility, Specific Heat and 119Sn Mössbauer Study of the Magnetic System Gd(In1-xSnx)3, Appl. Phys. 70(10), 5995 (1991)

4. Tan Yuen, C.L. Lin, J.E. Crow and N. Bykovetz, 119Sn Mössbauer Study of Magnetic Structure in Sn-Doped UPb3 and UIn3, J. of Mag. Mag. Mat. 109, 98 (1992)

5. T. Yuen, M. Seyebahmadian, R.E. Soloman and G.H. Myer, Magnetic Properties of a High Tc Superconductivity Related System Y1-xPrxBa2Fe3O8, J. Appl. Phys. 79 (8), 6001 (1996)

6. Tan Yuen, C. L. Lin, T. W. Mihalisin, Michael A. Lawandy and Jing Li, Magnetic Ordering in M(ox)(bpy) System (M = Fe, Co, Ni; ox = C2O42-; bpy = 4,4’-bipyridine), J. Appl. Phys. 87(9), 6001-6003 (2000)

7. Tan Yuen, C. L. Lin, Aihua Fu, and Jing Li, Magnetic Properties of a Metal-Organic Network Fe(N3)2(4,4'-bpy), J. Appl. Phys. 91(10), 7385-7387 (2002)

8. Tan Yuen, C. L. Lin, J. A. Zan, Long Pan and Jing Li, Magnetization and Specific Heat Studies of a 1D Metal-Organic System [Co(bpdc)(H2O)2]⋅H2O (bpdc = biphenyldicarboxylate), J. Appl. Phys. 97(10B), 315 (2005)

9. Tan Yuen, C. L. Lin, Long Pan, Xiaoying Huang, and Jing Li, Magnetic Properties of a Metal-organic Antiferromagnet Mn(hfipbb)py(H2O)0.5, J. Appl. Phys. 99, 1 08J501 (2006)

10. Dusan Danilovic, Youcef Hamida, Tan Yuen, Kunhao Li and Jing Li, Analysis on the exchange interactions in three metal-organic coordination network systems possessing 1D magnetism, J. Appl. Phys. 107 09E153 (2010)

11. Dusan Danilovic, Youcef Hamida, Chyan Long Lin, Tan Yuen, Kunhao Li, and Jing Li, Structural, Magnetic, and Thermodynamic Properties of M(N3)2(bpy), M = Ni, Co, Cu, J. Appl. Phys. 111, 07E335 (2012)

12. Youcef Hamida, Dusan Danilovic, Tan Yuen, Kunhao Li, and Jing Li, Magnetic Specific Heat Studies of Two Ising Spin ½ Chain Systems M(N3)2(bpy), J. Appl. Phys. 111, 07B332 (2012)

TEMPLE UNIVERSITY
COLLEGE OF SCIENCE AND TECHNOLOGY
DEPARTMENT OF PHYSICS


Department of Physics (035-08)
Temple University
1925 N. 12th St.
Philadelphia, PA 19122-1801

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