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15 papers · 1 filter
Manipulating magnetoelectric effect -- Essence learned from CoNbO
Yuki Yanagi, Satoru Hayami, Hiroaki Kusunose
Recent experiments for linear magnetoelectric (ME) response in honeycomb antiferromagnet CoNbO revealed that the electric polarization can be manipulated by the in-plan…
Emergent odd-parity multipoles and magnetoelectric effects on a diamond structure: implication to 5 transition metal oxides OsO ( K, Rb, and Cs)
Satoru Hayami, Hiroaki Kusunose, Yukitoshi Motome
We report our theoretical predictions on the linear magnetoelectric (ME) effects originating from odd-parity multipoles associated with spontaneous spin and orbital ordering on a d…
Syzygies of Cohen-Macaulay modules over one dimensional Cohen-Macaulay local rings
Toshinori Kobayashi
We study syzygies of (maximal) Cohen-Macaulay modules over one dimensional Cohen-Macaulay local rings. We compare these modules to Cohen-Macaulay modules over the endomorphism ring…
Anomalous Thermoelectric Response in an Orbital-Ordered Oxide Near and Far from Equilibrium
Yasuo Nishina, Ryuji Okazaki, Yukio Yasui +2
We report the thermoelectric transport properties in the orbital-ordered Mott insulating phase of CaRuO close to and far from equilibrium. Near equilibrium conditions where…
Oscillation collapse in coupled quantum van der Pol oscillators
Kenta Ishibashi, Rina Kanamoto
The classical self-oscillations can collapse merely due to their mutual couplings. We investigate this oscillation collapse in quantum van der Pol oscillators. For a pair of quantu…
Magneto-thermopower in the Weak Ferromagnetic Oxide CaRu0.8Sc0.2O3: An Experimental Test for the Kelvin Formula in a Magnetic Material
Takafumi D. Yamamoto, Hiroki Taniguchi, Yukio Yasui +3
We have measured the resistivity, the thermopower, and the specific heat of the weak ferromagnetic oxide CaRu0.8Sc0.2O3 in external magnetic fields up to 140 kOe below 80 K. We hav…