College of Letters & Science

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The College of Letters and Science, the largest center for learning, teaching and research at Montana State University, offers students an excellent liberal arts and sciences education in nearly 50 majors, 25 minors and over 25 graduate degrees within the four areas of the humanities, natural sciences, mathematics and social sciences.

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1976 - 19804

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Author: search.filters.author.Western, Arthur B.Subject: search.filters.subject.Physics

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Now showing 1 - 4 of 4
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    Comment on “dielectric study of the ferroelectric transition of KH2PO4”
    (1976-08) Western, Arthur B.; Schmidt, V. Hugo
    We reanalyze a.c. dielectric data taken by Eberhard and Horn for KH2PO4 near Tc, and obtain a much lower value of the critical bias field, near 300 V/cm in accord with results found by other workers.
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    Dielectric studies of critical and tricritical phenomena in kdp and RD
    (1980-01) Schmidt, V. Hugo; Schnackenberg, P. T.; Western, Arthur B.; Baker, A. G.; Bacon, Charles R.; Crummett, W. P.
    Our method of obtaining and analyzing dielectric data for KDP is reviewed, which demonstrated that KDP has a tricritical point between two and three kbar pressure. We also describe our method for obtaining the critical exponents r and d. Our experimental results for KDP are summarized. New results are presented for RDP which agree with the conclusion of others that its transition is of second order at ambient pressure.
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    Tricritical point and tricritical exponent δ in KH2PO4
    (1978-01) Schmidt, V. Hugo; Western, Arthur B.; Baker, A. G.; Bacon, Charles R.
    Static dielectric results for a KH2PO4 crystal at pressures of 0, 2, and 2. 4 kbar are analyzed in terms of a Landau free energy expansion using the “isopol” technique. The measured exponent δ at 2. 4 kbar is consistent with the mean-field tricritical value of 5. This result and the Landau parameter values indicate a tricritical point near 2. 4 kbar.
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    Tricritical Point in KH_{2} PO_{4}.
    (1976-11) Schmidt, V. Hugo; Western, Arthur B.; Baker, A. G.
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