Pressure effect on magnetic phase transitions in slowly cooled NiMn1-xCrxGe
Authors:
- R. Duraj,
- A. Szytuła,
- T. Jaworska-Gołąb,
- A. Deptuch,
- Yu. Tyvanchuk,
- A. Sivachenko,
- V. Val'kov,
- V. Dyakonov
Abstract
For a slowly cooled series of NiMn1-xCrxGe half-Heusler alloys (x = 0.04, 0.11, 0.18 and 0.25) the magnetostructural (P,T) phase diagrams, under hydrostatic pressure up to 13.5 kbar, were determined. At ambient pressure a magnetic (second order) transition and a structural (first order, martensitic) phase transition are observed. The temperature of the magnetic phase transition increases while the one of the structural phase transition decreases with increasing pressure. The lines of these dependences intersect at so-called triple point (PTRI, TTRI) and a magneto-structural (first order) phase transition develops with further pressure increase. The magneto-structural transition temperature decreases with increasing pressure. The value of the triple point pressure PTRI decreases with increasing Cr content, from about 8 kbar (for x = 0.04) to about 1 kbar (for x = 0.25) on heating.
- Record ID
- CUTc83f3c40b16f4b4a93e90e9d04ef6448
- Publication categories
- ;
- Author
- Journal series
- Journal of Alloys and Compounds, ISSN 0925-8388, e-ISSN 1873-4669
- Issue year
- 2018
- Vol
- 741
- Pages
- 449-453
- Other elements of collation
- rys.; tab.; wykr.; Bibliografia (na s.) - 453; Bibliografia (liczba pozycji) - 12; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 741
- Keywords in English
- (P,T) phase diagram, Magnetic half-Heusler alloys, Martensitic transition, Magnetic phase transitions, Entropy, X-ray diffraction
- DOI
- DOI:10.1016/j.jallcom.2018.01.064 Opening in a new tab
- URL
- https://www.sciencedirect.com/science/article/pii/S0925838818300653 Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 35
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTc83f3c40b16f4b4a93e90e9d04ef6448/
- URN
urn:pkr-prod:CUTc83f3c40b16f4b4a93e90e9d04ef6448
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.