spin-flop transition 强的磁晶各项异性: 2个子晶格的磁化保持平行于易磁化轴直到临界场。在H=Hcritic时,与H反平行的子晶格磁化强度突然朝向场方向发生旋转,导致两个磁矩平行排列。获得饱和状态,曲线(b)。spin-flip transition spin-flip transition The spin–flip and spin–flop transitions are of metamagnetic ...
magnetic transitions/ spin-flop transitionfinite magnetically uniaxial layered antiferromagnetsexchange-coupled layersSF transitiondomain wall pinningantiferromagnet boundariesA spin-flop (SF) transition in a finite magnetically uniaxial layered antiferromagnet with an even number of exchange-coupled layers is ...
A magnetic phase diagram for α-CoMoO4 powder has been constructed, revealing long range ordering at low temperature, and two spin flop transitions as magnetic field is increased. β-CoMoO4 thin films have been successfully fabricated and show no transition to α phase upon cooling. Magnetic ...
Interestingly, two asymmetric critical field, −2.0 and 4.0 T determined by the two peaks in dσ~/dB are observed, which is consistent with simulated results according to a Mills-model, describing a surface spin flop transition (SSF). Our results provide a new flatform for studying the ...
We drive the electronic ms = 0 ↔ ms = −1 (ms = 0 ↔ ms = +1) spin transitions at 1.746666 (4.008650) GHz with Hermite-shaped pulses. For transferring the electron population from the ms = −1 to the ms = +1 state (Figs. 3 and 4...
An antiferromagnet emits spin currents when time-reversal symmetry is broken. This is typically achieved by applying an external magnetic field below and above the spin-flop transition or by optical pumping. In this work we apply optical pump-THz emission spectroscopy to study picosecond spin pumping...
Two successive field-induced spin-flop transitions in single-crystalline CaCo$_{2}$As$_{2}$ CaCo 2 As 2 , a ThCr 2 Si 2 -structure compound, undergoes an antiferromagnetic transition at T N = 76 K with the magnetic moments being aligned parallel ... B Cheng,B Hu,R Yuan,... - ...
Tsukada, I., Takeya, J., Masuda, T., Uchinokura, K.: Two-stage spin-flop transitions in the \(S = 1 / 2\), antiferromagnetic spin chain \(Ba_Cu_{2}Si_{2}O_{7}\). Phys. Rev. Lett. 87, 127203 (2001) Article ADS Google Scholar Peres, A., Mayer, M.E.: Quantum theory...
By means of Kerr microscopy, Kerr magnetometry, GMR, and magnetization measurements we show that spin-flip transitions via domain wall displacement constitute the relevant mechanism of magnetization reversal, provided that the anisotropy field Hin the multilayer surpasses the antiferromagnetic coupling field...
The spin transport proceeds by means of magnetic dipole interactions that induce flip-flop transitions, a mechanism that can enable highly efficient, even reversible, pure spin currents. To further study the dynamics within the spin wire, we implement a magnetic resonance protocol that improves ...