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Preparation, stoichiometry and magnetic properties of Cu y Cr2Se4−z Br x spinels with 0.5≲x≲2 (1974)

Pink, H. ; Unger, W. K. ; Schäfer, H. ; [et al.]

Springer

Applied physics 4 (1974), S. 147-151

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ISSN: 1432-0630

Keywords: Magnetic semiconductors ; Chromium halochalcogenide spinels ; Curie temperature

Source: Springer Online Journal Archives 1860-2000

Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics

Notes: Abstract The chemical composition of Cu y Cr2Se4−z Br x spinels depends strongly on the preparation parameters. Spinels with 0.8≲y≲1.2, 0.5≲x≲2, and 0≲z−x≲0.2 have been prepared. Whereas the lattice constanta o of these spinels differs only by less than approximately 0.6%, their Curie temperatureT c depends sensitively on the spinel composition. For Cu1.1Cr2Se3.4Bro.46,a o=1.0410 nm andT c=310 K were found to compared witha 0=1.0447 nm andT c=84 K of CuCr2Se2Br2.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00884270

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