PRESSURE AND MAGNETIC FIELD EFFECTS ON PHASE TRANSITIONS IN HEISENBERG FERROMAGNETS.

B. R. German, V. P. Djakonov, V. I. Markovich

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The results of the investigation of uniform compression and magnetic field effects on phase transitions in Heisenberg ferromagnets CuRb//2Br//4 multiplied by (times) 2H//2O (T//c equals 1. 87K) and CuRb//2Cl//4 multiplied by (times) 2H//2O (T//c equals 1. 02K) are given. Magnetic susceptibility and magnetization measurements were carried out using modulation method on single crystals at pressure up to 10 kbar in the temperature range 4. 2-0. 4 K and the fields up to 500 Oe. For CuRb//2Br//4 multiplied by (times) 2H//2O the baric coefficient of T//c shift is equal to the dT//c/dP equals plus 0. 05 deg. kbar** minus **1. One observes nonlinear T//c increase for CuRb//2Cl//4 multiplied by (times) 2H//2O. The magnetic phasediagram is built. In a field applied along an easy magnetization direction there is a phase transition from a multidomain to a singlemagnetized phase but in a perpendicular field - from an angular to the collinear one. The results agree with predictions of the phase transition theory.

Original languageEnglish
Title of host publicationUnknown Host Publication Title
PublisherNorth-Holland
Pages185-186
Number of pages2
Editionpt 1
ISBN (Print)0444869107
StatePublished - 1 Dec 1984
Externally publishedYes

Publication series

Name
Numberpt 1

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