Wing structure in the phase diagram of the Ising ferromagnet URhGe close to its tricritical point investigated by angle-resolved magnetization measurements

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F17%3A10369526" target="_blank" >RIV/00216208:11320/17:10369526 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1103/PhysRevB.96.094411" target="_blank" >http://dx.doi.org/10.1103/PhysRevB.96.094411</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.96.094411" target="_blank" >10.1103/PhysRevB.96.094411</a>

Result language

angličtina

Original language name

Wing structure in the phase diagram of the Ising ferromagnet URhGe close to its tricritical point investigated by angle-resolved magnetization measurements

Original language description

High-precision angle-resolved dc magnetization and magnetic torque studies were performed on a singlecrystalline sample of URhGe, an orthorhombic Ising ferromagnet with the c axis being the magnetization easy axis, in order to investigate the phase diagram around the ferromagnetic (FM) reorientation transition in a magnetic field near the b axis. We have clearly detected a first-order transition in both the magnetization and the magnetic torque at low temperatures, and determined detailed profiles of the wing structure of the three-dimensional T-Hb-Hc phase diagram, where H-c and H-b denote the field components along the c and the b axes, respectively. The quantum wing critical points are located at mu H-0(c) similar to +/- 1.1 T and mu H-0(b) similar to 13.5 T. Two second-order transition lines at the boundaries of the wing planes rapidly tend to approach each other with increasing temperature up to similar to 3 K. Just at the zero conjugate field (H-c = 0), however, a signature of the first-order transition can still be seen in the field derivative of the magnetization at similar to 4 K, indicating that the tricritical point exists in a rather high temperature region above 4 K. This feature of the wing plane structure is consistent with the theoretical expectation that three second-order transition lines merge tangentially at the tricritical point.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2017

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Physical Review B

ISSN

2469-9950

e-ISSN

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Volume of the periodical

96

Issue of the periodical within the volume

9

Country of publishing house

US - UNITED STATES

Number of pages

9

Pages from-to

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UT code for WoS article

000410166800004

EID of the result in the Scopus database

2-s2.0-85029938039