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The rotating magnetocaloric effect (RMCE) is a recent interest in magnetic refrigeration technique in which the cooling effect is attained by rotating the anisotropic magnetocaloric material from one orientation to the other in a fixed…

Strongly Correlated Electrons · Physics 2019-10-21 Anzar Ali , Shama , Yogesh Singh

We investigated the annealing effects on the physical properties of SrFe$_2$(As$_{1-x}$P$_x$)$_2$ ($x=0.35$). The superconducting transition temperature ($T_c$) increased from 26 K to 33 K by annealing. The X-ray diffraction measurement…

Superconductivity · Physics 2015-06-15 T. Kobayashi , S. Miyasaka , S. Tajima , T. Nakano , Y. Nozue , N. Chikumoto , H. Nakao , R. Kumai , Y. Murakami

Recently ferroelectricity has been demonstrated in the family of halide perovskites: CsGeX$_3$ (X=Cl, Br, I). We develop a first-principles-based computational approach to probe finite-temperature properties of \cgb. Our computations reveal…

Materials Science · Physics 2023-06-08 Ravi Kashikar , S. Lisenkov , I. Ponomareva

We show that the electric polarization at the interface with ultrathin superconducting (S) films sandwiched between ferroelectric (FE) layers allows achievement of substantially stronger modulation of inner carrier density and…

Superconductivity · Physics 2007-05-23 Natalia Pavlenko

Temperature gradient in a ferromagnetic conductor may generate a spontaneous transverse voltage drop in the direction perpendicular to both magnetization and heat current. This anomalous Nernst effect (ANE) has been considered to be…

In strongly correlated organic materials it has been pointed out that charge-ordering could also achieve electronic ferroelectricity at the same critical temperature $T_{co}$. A prototype of such phenomenon are the quasi-one dimensional…

Strongly Correlated Electrons · Physics 2018-01-18 Mariano de Souza , Lucas Squillante , Cesar Sônego , Paulo Menegasso , Pascale Foury-Leylekian , Jean-Paul Pouget

Crystalline materials with broken inversion symmetry can exhibit a spontaneous electric polarization, which originates from a microscopic electric dipole moment. Long-range polar or anti-polar order of such permanent dipoles gives rise to…

We investigate polarization memory effects in single-crystal CuFeO2, which has a magnetically-induced ferroelectric phase at low temperatures and applied B fields between 7.5 and 13 T. Following electrical poling of the ferroelectric phase,…

First-principles-based atomistic simulations are used to reveal ferroelectric phases and phase transitions induced in a semiconductor ferroelectric, CsGeBr$_3$, by external loads: hydrostatic pressure, uniaxial and biaxial stresses, and…

Materials Science · Physics 2024-03-18 Joshua Townsend , Ravi Kashikar , S. Lisenkov , I. Ponomareva

The recent discovery of ferroelectric nematic liquid crystalline phases marks a major breakthrough in soft matter research. An intermediate phase, often observed between the nonpolar and the ferroelectric nematic phase, shows a distinct…

The coupling between electronic nematic degrees of freedom and acoustic phonons is known to significantly alter the universality class of a nematic quantum critical point (QCP). While non-Fermi-liquid behaviour emerges in the absence of…

Strongly Correlated Electrons · Physics 2025-09-01 Charles R. W. Steward , Grgur Palle , Markus Garst , Joerg Schmalian , Iksu Jang

Using modified microscopic model of GPI by taking into account the piezoelectric coupling with strains $\varepsilon_i$ in the frames of two-particle cluster approximation, the components of polarization vector and static dielectric…

Materials Science · Physics 2017-07-04 I. R. Zachek , R. R. Levitskii , A. S. Vdovych , I. V. Stasyuk

The iron-based high-$T_c$ superconductors exhibit rich phase diagrams with intertwined phases, including magnetism, nematicity and superconductivity. The superconducting $T_c$ in many of these materials is maximized in the regime of strong…

Electric field control of magnetism is the key to many next generation spintronics applications1. Ferroelectric control of spin polarization2,3 followed by the electrically driven repeatable magnetization reversal in the absence of applied…

Materials Science · Physics 2016-01-14 Gaurav Vats , Ashok Kumar , Ram S. Katiyar , Nora Ortega

In this work we study the influence of external electric field and temperature on the chiral phase transition of Quantum Chromodynamics. We use the two-flavor Linear Sigma Model coupled with quarks (LSMq) in a thermal and electrized medium…

High Energy Physics - Phenomenology · Physics 2023-08-02 William R. Tavares , Sidney S. Avancini , Ricardo L. S. Farias

Results of dc magnetization study are presented showing interesting thermomagnetic history effects across the antiferromagnetic to ferromagnetic transition in Ce(Fe$_{0.96}$Al$_{0.04})_2$. Specifically, we observe (i)ZFC/FC irreversibility…

Strongly Correlated Electrons · Physics 2016-08-31 M. A. Manekar , S. Chaudhary , M. K. Chattopadhyay , K. J. Singh , S. B. Roy , P. Chaddah

We have studied the thermal, magnetic, and electrical properties of the ternary intermetallic system CeNiGe$_{3}$ by means of specific heat, magnetization, and resistivity measurements. The specific heat data, together with the anisotropic…

Strongly Correlated Electrons · Physics 2015-05-19 E. D. Mun , S. L. Bud'ko , A. Kreyssig , P. C. Canfield

The contribution of a built-in electric field to ferroelectric phase transition in asymmetric ferroelectric tunnel junctions is studied using a multiscale thermodynamic model. It is demonstrated in details that there exists a critical…

Materials Science · Physics 2015-06-16 Yang Liu , Xiaojie Lou , Manuel Bibes , Brahim Dkhil

We explore the possibility that the large electroclinic effect observed in ferroelectric liquid crystals arises from the presence of an ordered array of disclination lines and walls. If the spacing of these defects is in the subvisible…

Soft Condensed Matter · Physics 2009-11-07 Robert B. Meyer , Robert A. Pelcovits

In this paper, we consider the Einstein-Maxwell-dilaton holographic model for light quarks with nonzero magnetic field and chemical potential. First, we study the phase diagrams in $T-\mu$ and $T-B$ planes. We observe inverse magnetic…

High Energy Physics - Phenomenology · Physics 2024-09-16 Zhou-Run Zhu , Defu Hou