Giant and highly anisotropic magnetocaloric effects in single crystals of disordered-perovskite RCrFeO (R = Gd, Er).

Magnetic anisotropy is crucial in examining suitable materials for magnetic functionalities because it affects their magnetic characteristics. In this study, disordered-perovskite RCrFeO (R = Gd, Er) single crystals were synthesized and the influence of magnetic anisotropy and additional ordering of rare-earth moments on cryogenic magnetocaloric properties was investigated. Both GdCrFeO (GCFO) and ErCrFeO (ECFO) crystallize in an orthorhombic Pbnm structure with randomly distributed Cr and Fe ions.

Spin-flip-driven anomalous Hall effect and anisotropic magnetoresistance in a layered Ising antiferromagnet.

The influence of magnetocrystalline anisotropy in antiferromagnets is evident in a spin flip or flop transition. Contrary to spin flops, a spin-flip transition has been scarcely presented due to its specific condition of relatively strong magnetocrystalline anisotropy and the role of spin-flips on anisotropic phenomena has not been investigated in detail. In this study, we present antiferromagnet-based functional properties on an itinerant Ising antiferromagnet CaSrCoAs.

Spin-flip-driven reversal of the angle-dependent magnetic torque in layered antiferromagnetic CaSrCoAs.

Spin-flip transition can occur in antiferromagnets with strong magnetocrystalline anisotropy, inducing a significant modification of the anisotropic magnetic properties through phase conversion. In contrast to ferromagnets, antiferromagnets have not been thoroughly examined in terms of their anisotropic characteristics. We investigated the magnetic-field and angle-dependent magnetic properties of Ising-type antiferromagnetic CaSrCoAs using magnetic torque measurements.

Behavior of magnetoelectric hysteresis and role of rare earth ions in multiferroicity in double perovskite YbCoMnO.

Double-perovskite multiferroics have been investigated because alternating orders of magnetic ions act as distinct magnetic origins for ferroelectricity. In YbCoMnO, the frustrated antiferromagnetic order emerging at T = 52 K induces ferroelectric polarization perpendicular to the c axis through cooperative O shifts via the symmetric exchange striction. In our detailed measurements of the magnetoelectric properties of single-crystalline YbCoMnO, we observe full ferromagnetic-like hysteresis loops that are strongly coupled to the dielectric constant and ferroelectric polarization at various temperatures below T.

Influence of Preaging Temperature on the Indentation Strength of 3Y-TZP Aged in Ambient Atmosphere.

Yttria-stabilized zirconia (3Y-TZP) containing 0.25% AlO, which is resistant to low temperature degradation (LTD), was aged for 10 h at 130-220 °C in air. The aged specimens were subsequently indented at loads ranging from 9.

Clinical Feasibility of Fully Sintered (Y, Nb)-TZP for CAD-CAM Single-Unit Restoration: A Pilot Study.

Fifteen participants (9 male, 6 female) received a total of 15 monolithic single restorations made from fully sintered (Y, Nb)-TZP (tetragonal zirconia polycrystal) block. The restorations were clinically evaluated for survival, success rate, and periodontal probing depths 6 months after the insertion of the restorations. Esthetic, functional, and biological evaluations were also performed over a 6-month follow-up period.

Influence of surface treatments and repair materials on the shear bond strength of CAD/CAM provisional restorations.

Purpose: To evaluate the effect of surface treatments and repair materials on the shear bond strength and to measure the fracture toughness of CAD/CAM provisional restoration materials.

Materials And Methods: Four CAD/CAM (3D printing: Nextdent C&B and ZMD-1000B Temporary, CAD/CAM resin block: Yamahachi PMMA disk and Huge PMMA block) and four conventional (monometacrylate: Jet and Alike, dimetacrylate: Luxatemp and Protemp 4) materials were selected to fabricate disk-shaped specimens and divided into six groups according to surface treatment (n=10). CAD/CAM materials were repaired with Jet or Luxatemp, while conventional materials were repaired with their own materials.