APL Nameplate
  • Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 

Flickr Twitter iResearch App Facebook

BROWSE VOLUMES

Year Range: 
Search Issue | RSS Feeds RSS
Previous Issue Next Issue

10 Mar 2003

Volume 82, Issue 10, pp. 1497-1639

Issue Cover Spotlight Figure

Appl. Phys. Lett. 82, 1610 (2003); http://dx.doi.org/10.1063/1.1559439 (3 pages)

Yong Chen, Douglas A. A. Ohlberg, Xuema Li, Duncan R. Stewart, R. Stanley Williams, Jan O. Jeppesen, Kent A. Nielsen, J. Fraser Stoddart, Deirdre L. Olynick, and Erik Anderson
Enlarge Image | Read More
Return to All Sections
back to top
RSS Feeds

Fabrication of spin-frustrated Sm2Mo2O7 epitaxial films: High throughput optimization using a temperature gradient method

J. Nishimura, T. Fukumura, M. Ohtani, Y. Taguchi, M. Kawasaki, I. Ohkubo, H. Koinuma, H. Ohguchi, K. Ono, M. Oshima, and Y. Tokura

Appl. Phys. Lett. 82, 1571 (2003); http://dx.doi.org/10.1063/1.1559440 (3 pages) | Cited 5 times

Online Publication Date: 4 March 2003

Full Text: Read Online (HTML) | Download PDF

Show Abstract
Epitaxial thin films of pyrochlore-type ferromagnetic molybdates Sm2Mo2O7, as a geometrically spin-frustrated system, were fabricated by a pulsed-laser deposition. The temperature gradient method combined with the concurrent x-ray diffraction method was exploited for high throughput optimization of the film quality. The excess supply of Mo for compensating the volatile Mo-related species improved the crystallinity. The resistivity and magnetization of the optimized film were 3 mΩ cm and 0.8 μB/Mo at 10 K, respectively, being similar to those of a single crystal. The observed finite anomalous Hall term that persists down to the lowest temperature reflects an appearance of spin chirality in this spin-frustrated system. © 2003 American Institute of Physics.
Show PACS
81.15.Fg Pulsed laser ablation deposition
68.55.A- Nucleation and growth
75.70.Ak Magnetic properties of monolayers and thin films
75.50.Dd Nonmetallic ferromagnetic materials
75.60.Ej Magnetization curves, hysteresis, Barkhausen and related effects
72.20.My Galvanomagnetic and other magnetotransport effects
73.50.Jt Galvanomagnetic and other magnetotransport effects (including thermomagnetic effects)
73.61.Ng Insulators
72.80.Sk Insulators

Exchange-spring permanent magnet particles produced by spark-erosion

M. F. Hansen, K. S. Vecchio, F. T. Parker, F. E. Spada, and A. E. Berkowitz

Appl. Phys. Lett. 82, 1574 (2003); http://dx.doi.org/10.1063/1.1560559 (3 pages) | Cited 7 times

Online Publication Date: 4 March 2003

Full Text: Read Online (HTML) | Download PDF

Show Abstract
Exchange-spring permanent magnet particles of composition Pr6.93Fe85.7B5.95Nb1.39 in at. % were prepared by spark-erosion in liquid argon. The best exchange-spring properties were achieved after vacuum annealing the as-sparked powders at 700 °C for ∼5 min, and did not change significantly for anneals up to 120 min. This behavior suggests that the equilibrium dimensions of the “hard” and “soft” phases were determined by the sizes of the spark-eroded particles in which they developed. The Pr2Fe14B phase developed as spheres, likely single crystals, in an α-Fe+Fe2B matrix. © 2003 American Institute of Physics.
Show PACS
07.55.Db Generation of magnetic fields; magnets
75.50.Ww Permanent magnets
75.50.Tt Fine-particle systems; nanocrystalline materials
75.30.Et Exchange and superexchange interactions
81.40.Gh Other heat and thermomechanical treatments
81.05.Bx Metals, semimetals, and alloys
81.20.Ev Powder processing: powder metallurgy, compaction, sintering, mechanical alloying, and granulation
Return to All Sections
Close

Google Calendar

ADVERTISEMENT

Go to AIP Home   © AIP Publishing LLC
close