Intriguing behavior of UCo1-xRhxGe ferromagnets in magnetic field along the b axis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F20%3A10414759" target="_blank" >RIV/00216208:11320/20:10414759 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=N5Wq_OrTfY" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=N5Wq_OrTfY</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevB.102.024442" target="_blank" >10.1103/PhysRevB.102.024442</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Intriguing behavior of UCo1-xRhxGe ferromagnets in magnetic field along the b axis

Popis výsledku v původním jazyce

Single crystals of solid solutions of ferromagnetic superconductors UCoGe and URhGe were investigated by magnetization and specific-heat measurements. These compounds behave as anisotropic ferromagnets with the easy-magnetization direction along the orthorhombic c axis. The maximum Curie temperature T-C = 20K has been observed in UCo1-xRhxGe for x = 0.4. The main interest of the study was the intriguing behavior in magnetic fields applied along the b axis. The temperature dependence of the b-axis magnetic susceptibility exhibits a maximum at a characteristic temperature T-max. For low Rh concentrations (x &lt; 0.4)T-max &gt; T-C and the magnetic entropy S-mag at T-C is very low, whereas T-max = T-C and the S-mag at T-C is much higher for x &gt;= 0.4. A metamagneticlike anomaly in magnetization is observed in all compounds, at a critical field which appears on a similar energy scale with the value of the corresponding Tmax. The character of three paramagnetic regimes which can be distinguished in the T-x and H-x phase diagrams, normal, correlated, and field polarized, is discussed in relation to the field-induced reentrant superconductivity in the parent compounds.

Název v anglickém jazyce

Intriguing behavior of UCo1-xRhxGe ferromagnets in magnetic field along the b axis

Popis výsledku anglicky

Single crystals of solid solutions of ferromagnetic superconductors UCoGe and URhGe were investigated by magnetization and specific-heat measurements. These compounds behave as anisotropic ferromagnets with the easy-magnetization direction along the orthorhombic c axis. The maximum Curie temperature T-C = 20K has been observed in UCo1-xRhxGe for x = 0.4. The main interest of the study was the intriguing behavior in magnetic fields applied along the b axis. The temperature dependence of the b-axis magnetic susceptibility exhibits a maximum at a characteristic temperature T-max. For low Rh concentrations (x &lt; 0.4)T-max &gt; T-C and the magnetic entropy S-mag at T-C is very low, whereas T-max = T-C and the S-mag at T-C is much higher for x &gt;= 0.4. A metamagneticlike anomaly in magnetization is observed in all compounds, at a critical field which appears on a similar energy scale with the value of the corresponding Tmax. The character of three paramagnetic regimes which can be distinguished in the T-x and H-x phase diagrams, normal, correlated, and field polarized, is discussed in relation to the field-induced reentrant superconductivity in the parent compounds.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

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

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

Physical Review B

ISSN

2469-9950

e-ISSN

—

Svazek periodika

102

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

024442

Kód UT WoS článku

000552900300001

EID výsledku v databázi Scopus

2-s2.0-85089582398