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The changes in magnetic properties of Ce(Fe0.9Co0.1)2 compound with increasing disorder are discussed in the paper. Homogeneous alloys are known to undergo the phase transition from ferromagnetic to antiferromagnetic state accompanied by…

First order phase transitions occur discretely from one state to another, however they often display continuous behavior. To understand this nature, it is essential to probe how the emergent phase nucleates, interacts and evolves with the…

Geometrically frustrated structures combined with competing exchange interactions that have different magnitudes are known ingredients for achieving exotic properties. Herein, we studied detailed structural, magnetic, thermal (specific…

材料科学 · 物理学 2023-12-18 P. Mohanty , N. Sharma , D. Singh , Y. Breard , D. Pelloquin , S. Marik , R. P. Singh

In spite of being highly relevant for the development of a new generation of information storage devices, not many single-phase materials displaying magnetic and ferroelectric orders above room temperature are known. Moreover, these…

We present direct evidence of above room temperature magneto-electricity in single-phase Li0.05Ti0.02Ni0.93O with above-ambient antiferromagnetic ordering. Temperature-hysteresis in warming/cooling heat-flow thermograms establishes a…

材料科学 · 物理学 2015-09-15 Jitender Kumar , Pankaj K. Pandey , A. M. Awasthi

A study of the antiferromagnet CeRh$_2$Si$_2$ by torque, magnetostriction, and transport in pulsed magnetic fields up to 50 Tesla and by thermal expansion in static fields up to 13 Tesla is presented. The magnetic field-temperature phase…

强关联电子 · 物理学 2010-03-16 W. Knafo , D. Aoki , D. Vignolles , B. Vignolle , Y. Klein , C. Jaudet , A. Villaume , C. Proust , J. Flouquet

We report the first experimental evidence of a magnetic phase arising due to the thermal blocking of antiferromagnetic clusters in the weakened charge and orbital ordered system Pr{_0.5}Ca{_0.5}Mn{_0.975}Al{_0.025}O{_3}. The third order…

强关联电子 · 物理学 2007-05-23 Sunil Nair , A. Banerjee

Using X-ray photoelectron emission microscopy we have observed the coexistence of ferromagnetic and antiferromagnetic phases in a (3 at.%)Pd-doped FeRh epilayer. By quantitatively analyzing the resultant images we observe that as the…

Uncompensated moments in antiferromagnets are responsible for exchange bias in antiferromagnet/ferromagnet heterostructures; however, they are difficult to directly detect because any signal they contribute is typically overwhelmed by the…

A magneto-structural phase transition is investigated in single crystal CrN thin films grown by rf plasma molecular beam epitaxy on MgO(001) substrates. While still within the vacuum environment following MBE growth, $\it in-situ$…

B2-ordered FeRh has been known to exhibit antiferromagnetic-ferromagnetic (AF-F) phase transitions in the vicinity of room temperature. Manipulation of the N\'eel order via AF-F phase transition and recent experimental observation of the…

We present results of high-resolution, low-temperature measurements of the Hall coefficient, thermopower, and specific heat on stoichiometric YbRh2Si2. They support earlier conclusions of an electronic (Kondo-breakdown) quantum critical…

强关联电子 · 物理学 2015-05-20 S. Friedemann , S. Wirth , S. Kirchner , Q. Si , S. Hartmann , C. Krellner , C. Geibel , T. Westerkamp , M. Brando , F. Steglich

The stability of Cr, V, Al carbide MAX phases, materials of interest for a variety of magnetic as well as high temperature applications, has been studied using density-functional-theory first-principles calculations. The enthalpy of mixing…

材料科学 · 物理学 2019-01-02 Joas Grossi , Shafqat H. Shah , Emilio Artacho , Paul D. Bristowe

We show that Co spins in Co/FeRh epitaxial bilayers grown on W(110) switch reversibly between the two orthogonal in-plane directions as the FeRh layer undergoes temperature driven antiferromagnetic-ferromagnetic (AFM-FM) phase transition.…

介观与纳米尺度物理 · 物理学 2018-04-04 P. Dróżdż , M. Ślęzak , K. Matlak , B. Matlak , K. Freindl , J. Korecki , T. Ślęzak

We have investigated the thermal, transport and magnetic properties of URh$_{1-x}$Ru$_x$Ge alloys near the critical concentration $x_{cr} = 0.38$ for the suppression of ferromagnetic order. The Curie temperature vanishes linearly with $x$…

强关联电子 · 物理学 2009-11-13 N. T. Huy , A. Gasparini , J. C. P. Klaasse , A. de Visser , S. Sakarya , N. H. van Dijk

We report on B2-ordering dependence of magnetostatic surface spin waves in ferromagnetic FeRh at room temperature. Spin waves transmit over a distance longer than 21 {\mu}m in highly ordered FeRh alloys even with relatively large spin-orbit…

材料科学 · 物理学 2016-11-01 Takamasa Usami , Ippei Suzuki , Mitsuru Itoh , Tomoyasu Taniyama

We present the temperature and layer dependent electronic structure of a 20-layer EuS(100)-film using a combination of first-principles and model calculation, the latter based on the ferromagnetic Kondo-lattice. The calculated…

强关联电子 · 物理学 2016-08-16 Wolf Müller , Wolfgang Nolting

The correlation between magnetic properties and microscopic structural aspects in the diluted magnetic semiconductor Ge$_{1-x}$Mn$_{x}$Te is investigated by x-ray diffraction and magnetization as a function of the Mn concentration $x$. The…

强关联电子 · 物理学 2017-06-20 M. Kriener , T. Nakajima , Y. Kaneko , A. Kikkawa , D. Hashizume , K. Kato , M. Takata , T. Arima , Y. Tokura , Y. Taguchi

Magnetotransport measurements on small single crystals of Cr, the elemental antiferromagnet, reveal the hysteretic thermodynamics of the domain structure. The temperature dependence of the transport coefficients is directly correlated with…

材料科学 · 物理学 2015-06-25 R. Jaramillo , T. F. Rosenbaum , E. D. Isaacs , O. G. Shpyrko , P. G. Evans , G. Aeppli , Z. Cai

The first order antiferromagnetic (AFM) to ferromagnetic (FM) transition in the functional material Fe49(Rh0.93Pd0.07)51 has been studied at low temperatures and high magnetic fields. We have addressed the non-monotonic variation of lower…

强关联电子 · 物理学 2009-11-25 Pallavi Kushwaha , Archana Lakhani , R Rawat , P Chaddah