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FY2005 MURI

 

 

List of recent publications from our group:

Click here for the complete list of publications by Prof. J. Ping Liu.

 

Experimental evidence of dipolar interaction in nanocomposite magnets.

A. J. Zambano, H Oguchi, I.   Takeuchi, J. P. Liu, S. E. Lofland, D. Josell and L. A. Bendersky

Phys. Rev. B, in press.

 

Magnetic hardening in isolated FePt nanoparticles.

C.B. Rong and J.P.  Liu

IEEE Trans. Nanotech., in press.

 

Synthesis of FePt nanorods and nanowires by a facile method.

Narayan Poudyal, Girija S Chaubey, Vikas Nandwana, Chuan-bing Rong, Kazuaki Yano and J Ping Liu

Nanotechnology, in press.

 

Do thermal fluctuations influence the recoil loops of nanocomposite magnets?

Chuangbing  Rong, Y. Liu and J.P. Liu

Appl. Phys. Lett., in press.

 

Rapid thermal annealing of FePt nanoparticles.

Kazuaki Yano, Vikas Nandwana, Narayan Poudyal, Chuan-bing Rong and J. Ping Liu,

J. Applied Physics, 104 (2008), 013918.  

 

Dependence of Exchange Coupling on Interfacial Conditions in SmCo5/Co System: A First-Principles Study.

D.X. Wu, Q.M. Zhang, J.P. Liu, and R.F.Sabiryanov

J. NanoSci. NanoTech., 8 (2008), 3036–3039.

 

 Zinc ferrite nanoparticles as MRI contrast agents.

Carlos B’arcena, Amandeep K. Sra, Girija S. Chaubey, Chalermchai Khemtong, J. Ping Liu and Jinming Gao

Chem. Commun., 2008, 2224

 

Element-specific recoil loops in Sm–Co/Fe exchange-spring magnets.

Y. Choi,a J. S. Jiang, J. E. Pearson, and S. D. Bader, J. P. Liu

J. Appl. Phys. 103, 07E132 (2008).

 

High thermal stability of carbon-coated L10-FePt nanoparticles prepared by salt-matrix annealing.

Chuan-Bing Rong, Narayan Poudyal, Girija S. Chaubey, Vikas Nandwana, Yuzi Liu, Y. Q. Wu, M. J. Kramer,

M. E. Kozlov, R. H. Baughman, and J. Ping Liu

J. Appl. Phys. 103, 07E131 (2008)

 

First-principles prediction of enhanced magnetic anisotropy in FeCo alloys.

Dangxin Wu, Qiming Zhang, J. Ping Liu, Dingwang Yuan, and Ruqian Wu

Appl. Phys. Lett., 92 (2008) 052503.

 

Synthesis and Characterization of Bimagnetic Bricklike Nanoparticles.

Girija S. Chaubey, Vikas Nandwana, Narayan Poudyal, Chuan-bing Rong, and J. Ping Liu

Chem. Mater. , 20 (2008) 475–478.

 

A Novel Approach to Synthesis of FePt Magnetic Nanoparticles.

Kevin E. Elkins, Girija S. Chaubey, Vikas Nandwana, J. Ping Liu

Journal of Nano Research,  1 (2008), 23-29.

 

SmCo5/Fe Nanocomposites Synthesized from Reductive Annealing of Oxide Nanoparticles.

Yanglong Hou, Shouheng Sun, Chuanbing Rong, and J. Ping Liu

Appl. Phys. Lett., 91 (2007) 153117.

 

Sm-Co hard magnetic nanoparticles prepared by surfactant-assisted ball milling.

YipingWang, Yang Li, Chuanbing Rong and J Ping Liu

Nanotechnology, 18 (2007) 465701.

 

A Facile Synthesis of SmCo5 Magnets from Core/Shell Co/Sm2O3 Nanoparticles.

Yanglong Hou, Zhichuan Xu, Sheng Peng, Chuanbing Rong, J. Ping Liu, and Shouheng Su

Advanced Materials, 19 (2007) 3349-3352.

 

Structural phase transition and ferromagnetism in monodisperse 3 nm FePt particles.

Chuan-bing Rong, Narayan Poudyal, Girija S Chaubey, and Vikas Nandwana, R. Skomski, Y. Q. Wu and M. J. Kramer, J. Ping Liu

J. Applied Physics,  102 (2007), 043913.

 

Bulk FePt-based nanocomposite magnets with enhanced exchange coupling,

Chuan-Bing Rong, Vikas Nandwana, Narayan Poudyal, and J. Ping Liu, Mikhail E. Kozlov and Ray H. Baughman, Yong Ding and Zhong Lin Wang

J. Applied Physics, 101 (2007), 023908.

 

Temperature and magnetic field induced phase transitions in Fe-rich FePt alloys.

Chuan-bing Rong and J. Ping Liu

Appl. Phys. Lett.,  90 (2007) 222504.

 

Synthesis and Stabilization of FeCo Nanoparticles.

Girija S. Chaubey, Carlos Barcena, Narayan Poudyal, Chuanbing Rong, Jinming Gao, Shouheng Sun, and J. Ping. Liu

J. Am. Chem. Soc., 129 (2007), 7214-7215.

 

Synthesis and Self-Assembly of fcc Phase FePt Nanorods.

Min Chen, Timothy Pica, Ying-Bing Jiang, Peng Li, Kazuaki Yano, J. Ping Liu, Abhaya K. Datye, and Hongyou Fan

J. Am. Chem. Soc., 129 (2007), 6348-6349.

 

Microstructures and magnetic alignment of L10 FePt nanoparticles.

Shishou Kang,Shifan Shi, Zhiyong Jia, G. B. Thompson, David E. Nikles, J. W. Harrell, Daren Li, Narayan Poudyal, Vikas Nandwana, and J. P. Liu

J. Applied Physics, 101 (2007), 09J113.

 

Bulk FePt/Fe3Pt nanocomposite magnets prepared by spark plasma sintering.

Chuan-bing Rong, Vikas Nandwana, Narayan Poudyal, J.P. Liu, Tetsuji Saito, Yaqiao Wu, and Matthew J. Kramer

J. Applied Physics, 101 (2007), 101 (2007), 09K515.

 

Curie temperatures of annealed FePt nanoparticle systems.

Chuan-Bing Rong, Yang Li, and J. P. Liu

J. Applied Physics, 101 (2007), 09K505.

 

Size and Shape Control of Monodisperse FePt Nanoparticles.

Vikas Nandwana, Kevin E. Elkins, Narayan Poudyal, Girija S. Chaubey, Kazuaki Yano, and J. P. Liu

J. Phys. Chem. C, 111(2007), 4185-4189.

 

 

Formation of Fe3Pt phase in FePt-based nanocomposite magnets.

Chuan-bing Rong, Vikas Nandwana1, Narayan Poudyal, Yang Li, J Ping Liu, Yong Ding and Zhong Lin Wang

J. Phys. D: Appl. Phys. 40 (2007), 712–716.

 

Transformation of electrical transport from variable range hopping to hard gap resistance in Zn1−xFexO1−v magnetic semiconductor films.

Y. F. Tian,a_ Shi-shen Yan, Y. P. Zhang, H. Q. Song, G. Ji, G. L. Liu, Y. X. Chen, L. M. Mei, J. P. Liu, B. Altuncevahir, and V. Chakka

J. Applied Physics,100 (2006), 103901-103907.

 

PLD-Assisted VLS Growth of Aligned Ferrite Nanorods, Nanowires, and Nanobeltss Synthesis, and Properties.
Jenny Ruth Morber, Yong Ding, Michael Stephan Haluska, Yang Li, J. Ping Liu, Zhong Lin Wang, and Robert L. Snyder

 J. Phys. Chem. B, in press.

 

Size-dependent chemical and magnetic ordering in L10 FePt nanoparticles.
Chuanbing Rong, Daren Li, Vikas Nandwana, Narayan Poudyal, Yong Ding, Zhonglin Wang, Hao Zeng and J.Ping Liu

Advanced Materials (2006), 18, 2984–2988.

 

Magnetic Properties of FePt Nanoparticles Annealed With NaCl.
B. A. Jones, J. D. Dutson1, K. O’Grady, B. J. Hickey, Daren Li, Narayan Poudyal, and J. Ping Liu

 IEEE Trans on Magn., 42 (2006), 3066-3068.

 

Rapid thermal processing of magnetic materials.

Zhi-qiang Jin, J.P. Liu

 J. Phys. D: Appl. Phys. 39 (2006) R227–R244, invited.

 

Phase Transformation of FePt Nanoparticles,

J. P. Liu, K. Elkins, D. Li, V. Nandwana, N. Poudyal

IEEE Trans on Magn., 42 (2006), 3036-3041

 

Synthesis of FePt Nanocubes and Their Oriented Self-Assembly.

Min Chen, Jaemin Kim, J. P. Liu, Hongyou Fan, and Shouheng Sun

J. Am. Chem. Soc., 128 (2006), 7132-7133.

 

The Pulse-Thermal Processing of NdFeB-Based Nanocomposite Magnets.

Z.Q. Jin, V.M. Chakka, Z.L. Wang, J.P. Liu, P. Kadokar, and R.D. Ott

JOM, June (2006), 46.

 

Magnetic Nanoparticles Produced by Surfactant-Assisted Ball Milling,

V. M. Chakka, B. Altuncevahir, Z. Q. Jin, Y. Li, J. P. Liu
J. Applied Physics, 99 (2006), 08E912.

 

Hard Magnetic FePt Nanoparticles by Salt-Matrix Annealing,

Daren Li, Narayan Poudyal, Vikas Nandwana, Zhiqiang Jin, Kevin Elkins, J. Ping Liu
J. Applied Physics, 99 (2006), 08E911.

 

Mechanism of the anomalous temperature dependence of coercivity in Sm(Co,Fe,Cu,Zr)z high-temperature magnets.

Chuan-bing Rong, Hong-wei Zhang, Bao-gen Shen and J. Ping Liu
APPLIED PHYSICS LETTERS 88, 042504 2006
.

Effects of annealing on the coercivity of Sm(Co,Fe,Cu,Zr)z ribbons and its temperature dependence.
Chuan-bing Rong, Hong-wei Zhang, Ren-jie Chen, Bao-gen Shen, Shu-li He and J. Ping Liu 
Phys. D: Appl. Phys. 39 (2006) 437–440
.

Rapid magnetic hardening by rapid thermal annealing in NdFeB-based nanocomposites.
Kung-Te Chu, Z Q Jin, Vamsi M Chakka and J P Liu
J. Phys. D: Appl. Phys. 38 (2005) 4009–4014.

Shock Compression Response of FePt and FePt/Fe3Pt Nanoparticles: Exchange-Coupled Nanocomposite Magnets.

Z. Q. Jin, J. Li, N. N. Thadhani, Z. L. Wang, T. Vedantam, J. P. Liu
14th APS Topical Conference 2005, Baltimore, MD, July 31, 2005 p.

Magnetic hardening in ultrafine FePt nanoparticle assembled films.

V Nandwana, K E Elkins and J P Liu
Ming-hui Yu,a Jason Hattrick-Simpers, and Ichiro Takeuchi, Jing Li and Z. L. Wang, J. P. Liu, S. E. Lofland and Somdev Tyagib, J. W. Freeland, D. Giubertoni, M. Bersani, and M. Anderle
JOURNAL OF APPLIED PHYSICS 98, 063908 2005.

Monodisperse face-centred tetragonal FePt nanoparticles with giant coercivity, (an IoP Select article and reported in PhysicsWeb,NanotechWeb and other medias.    
Kevin Elkins, Daren Li, Narayan Poudyal, Vikas Nandwana, Zhiqiang Jin, Kanghua Chen and J Ping Liu
JOURNAL OF APPLIED PHYSICS 38 (2005), 2306–2309.

Magnetization reversal and nanostructure refinement in magnetically annealed Nd2Fe14B/alpha-Fe-type nanocomposites.

Cui BZ, Yu CT, Han K, Liu JP, Garmestani H, Pechan MJ, Schneider-Muntau HJ
JOURNAL OF APPLIED PHYSICS 97 (10): Art. No. 10F308 Part 2, MAY 15 2005.

A new approach for improving exchange-spring magnets.

Jiang JS, Pearson JE, Liu ZY, Kabius B, Trasobares S, Miller DJ, Bader SD, Lee DR, Haskel D, Srajer G, Liu JP
JOURNAL OF APPLIED PHYSICS 97 (10): Art. No. 10K311 Part 3, MAY 15 2005.

Monodisperse face-centred tetragonal FePt nanoparticles with giant coercivity.

Elkins K, Li DR, Poudyal N, Nandwana V, Jin ZQ, Chen KH, Liu JP
JOURNAL OF PHYSICS D: Applied Physics 38 (2005) 2306-2309.
Jin ZQ, Thadhani NN, McGill M, Ding Y, Wang ZL, Chen M, Zeng H, Chakka VM, Liu JP
JOURNAL OF MATERIALS RESEARCH 20 (3): 599-609 MAR 2005.

 Underwater Explosive Shock Consolidation of Nanocomposite Pr2Fe14B/α-Fe Magnetic Powders.

Z.Q. Jin, C. Rockett, J.P. Liu, K. Hokamoto, N.N. Thadhani

Materials Transactions, 46(2005) 372-375.

Analyzing the structure of CoFe-Fe3O4 core-shell nanoparticles by electron imaging and diffraction.

J. Li, H. Zeng, S.H. Sun, J. P. Liu, Z. L. Wang

J. Phys. Chem. B 108 (2004) 14005-14008.

Amorphization and ultrafine-scale recrystallization in shear bands formed in shock-consolidated Pr2Fe14B/α-Fe nanocomposite magnets.

J. Li, Z. Q. Jin, J. P. Liu, Z. L. Wang and N. N. Thadhani,

App. Phys. Lett., 85 (2004), 2223-2225.

Improving exchange-spring nanocomposite permanent magnets.

J. S. Jiang, J. E. Pearson, Z. Y. Liu, B. Kabius, S. Trasobares, D. J. Miller, S. D. Bader, D. R. Lee, D. Haskel, G. Srajer, and J. P. Liu

Appl. Phys. Lett., 85 (2004) 5293-5295.

Field-ball milling induced anisotropy in mangetic particles.

Narayan Poudyal, Baki Altuncevahir, Vamsi Chakka, Kanghua Chen, Truman D Black, J. P. Liu, Yong Ding, and Zhong Lin Wang

J. Phys. D: Appl. Phys. 37 (2004) L45-L48.

Shock compaction of bulk nanocomposite magnetic materials.

Z. Q. Jin, C. Rockett, J. P. Liu, K. Hokamoto and N. N. Thadhani

Materials Science Forum, 465-466 (2004), 93-100.

Grain size dependence of magnetic properties in shock synthesized bulk Pr2Fe14B/α-Fe nanocomposite.
Z. Q. Jin, N. N. Thadhani, M. McGill, J. Li, Y. Ding, Z. L. Wang, H. Zeng, M. Chen, S. F. Cheng, and J. P. Liu
J. Appl. Phys., 96 (2004), 3452-3457.

Effects of high magnetic field annealing on texture and magnetic properties of FePd.
D. S. Li, H. Garmestani, Shi-shen Yan, M. Elkawni, M. B. Bacaltchuk, H. J. Schneider-Muntau, J. P. Liu, S. Saha, and J. A. Barnard
J. Magn. Magn. Mater., 281 (2004), 272-275.

Yan SS, Elkawni M, Li DS, Garmestani H, Liu JP, Weston JL, Zangari G
JOURNAL OF APPLIED PHYSICS 94 (7): 4535-4538 OCT 1 2003.

Tailoring Magnetic Properties of Core/Shell Nanoparticles.

Hao Zeng, Shouheng Sun, J. Li, Z. L. Wang and J. P. Liu

Applied Physics Letters, 85 (2004), 792-794.

One-Step Synthesis of FePt Nanoparticles with Tunable Size.
Min Chen, J. P. Liu, Shouheng Sun
J. Am. Chem. Soc., 126 (2004), 8394-8395.

Crystallization, Morphology and Magnetic Properties of Melt-spun (Nd,Pr,Dy)2(Fe,Co,Mo)14B/α-Fe Nanocomposite Magnets.
B. Z. Cui, K. Han, Y. Zhang, J. P. Liu, H. Garmestani, S. Liu, H. Schneider-Muntau
IEEE Trans. Magn., 40 (2004), 2867-2870.

Bulk Nanocomposite Magnets Produced by Dynamic Shock Compaction.
K.H. Chen, Z.Q. Jin, J. Li, G. Kennedy, H. Zeng, S.-F. Cheng, Z.L. Wang, N. N. Thadhani, J.P. Liu
J. Appl. Phys., 96 (2004), 1276-1278.

Controlling the crystallization and magnetic properties of melt-spun Pr2Fe14B/α-Fe nanocomposites by Joule heating.
Z. Q. Jin, B. Z. Cui, J. P. Liu, Y. Ding, Z. L. Wang, and N. N. Thadhania
Applied physics Letters, 84 (2004), 4382-4384.

Shock compression response of magnetic nanocomposite powders.
Z. Q. Jin, K. H. Chen, J. Li , H. Zeng , S. -F. Cheng , J. P. Liu, Z. L. Wang and N. N. Thadhani
Acta Materialia, 52 (2004), 2147-2154.

Bimagnetic Core/Shell FePt/Fe3O4 Nanoparticles.
Hao Zeng, Jing Li, Z. L. Wang, J. P. Liu, and Shouheng Sun
NanLetters, 4 (2004), 187-190.

Effect of coupling strength on magnetic properties of exchange-coupled spring magnets.
Vamsi M. Chakka, Z. S. Shan, and J. P. Liu
J. Appl. Phys., 94 (2003), 6673-6677.

Ultrafine FePt Nanoparticles Prepared by the Chemical Reduction Method.
Elkins, K. E.; Vedantam, T. S.; Liu, J. P.; Zeng, H.; Sun, S.; Ding, Y.; Wang, Z. L.
Nano Lett.; (Communication); 2003; 3(12); 1647-1649.  

Thermal stability of self-assembled FePt nanoparticles.
T. S. Vedantam, J. P. Liu, Hao Zeng, and S.-H. Sun
J. Appl. Phys., 93 (2003), 7184 - 7186.

Interface structures in FePt/Fe3Pt hard-soft exchange-coupled magnetic nanocomposites.
Jing Li, Zhong L. Wang, Hao Zeng, Shouheng Sun, J. P. Liu
Applied physics Letters, 82 (2003), 3743- 3745.

Exchange coupling in epitaxial Sm–Co(11-00)/Nd–Co exchange-spring bilayers.
Z. J. Guo, J. S. Jiang, C. Y. You, V. K. Vlasko-Vlasov, U. Welp, J. P. Liu, S. D. Bader
J. Appl. Phys., 93 (2003), 8122-8124.

Exchange-coupled nanocomposite magnets via nanoparticle self-assembly.
Hao Zeng, Jing Li, J. P. Liu, Zhong L. Wang and Shouheng Sun
Nature, 420 (2002), 395-398.

Interparticle Interactions in Annealed FePt Nanoparticle Assemblies.
Hao Zeng, Jing Li, Zhong L. Wang, J. P. Liu and Shouheng Sun
IEEE Trans on Magn., 38 (2002), 2598-2600.

Energy Barrier and Magnetic Properties of Exchange-Coupled Hard-Soft Bilayer System.
Z. S. Shan, J. P. Liu, Vamsi M. Chkka, Hao Zeng, J.S. Jiang
IEEE Trans on Magn, 38 (2002), 2907-2909.

Exchange-coupled Sm–Co/Nd–Co nanomagnets: correlation between soft phase anisotropy and exchange field.
Z. J. Guo, J. S. Jiang, J. E. Pearson, S. D. Bader and J. P. Liu
Applied Physics Letters, 81 (2002), 2029-2031.

 

 


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