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Magnetic tricritical behavior of ethylammonium tetrachlorocuprate (1988)

Long, Jerome R. ; Haines, Donald N. ; Drumheller, John E.

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 63 (1988), S. 3031-3033

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ISSN: 1089-7550

Source: AIP Digital Archive

Topics: Physics

Notes: In order to investigate the prediction by Tuthill that a tricritical point may exist in the phase diagram of spin-flop antiferromagnets with intermediate anisotropy, an experimental reexamination of the phase diagram of the quasi-two-dimensional system (C2H5NH3)2CuCl4 was performed. Measurements were made of the differential magnetic susceptibility, dM/dH, vs dc field and temperature in the (10 K, 100 Oe) region of the proposed tricritical point. A low amplitude, low frequency, ac biphase SQUID susceptometer was used. The sample was a single crystal with field along the antiferromagnetic easy (orthorhombic a-axis) direction. The data show some evidence of the existence of at least one tricritical point, but the results are not definitive.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.340883

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