7 papers
Pressure-induced PT Symmetry Breaking in LaMnSi
Takuya Aoyama, Hikaru Taneoka, Takemi Yamada +2
We investigate the magnetotransport properties of the antiferromagnetic metal LaMnSi, in which the collinear magnetic order breaks both spatial inversion (P) and time-reversal (T)…
Realization of a parity-violating antiferromagnetic state in LaMnSi
Takuma Iwata, K. Shiraishi, T. Aoyama +12
Spontaneous symmetry breaking underlies functional electronic phenomena in quantum materials. Breaking space-inversion () or time-reversal () symmetry can…
Pressure Effects on CeMnSi: Evolution of Ce 4f and Mn 3d Electronic States and Negative Thermal Expansion
Sae Nishiyama, Haruka Mima, Jun-ichi Hayashi +6
We investigated pressure effects on the nontrivial heavy-fermion antiferromagnet CeMnSi by means of electrical resistivity and powder X-ray diffraction. With increasing pressure, t…
Microscopic Determination of the c-axis-Oriented Antiferromagnetic Structure in LaMnSi by Mn and La NMR
Yusuke Sakai, Fumiya Hori, Hiroki Matsumura +4
We report a microscopic investigation of the magnetic structure and electronic properties of LaMnSi in its antiferromagnetic (AFM) state using nuclear magnetic resonance (NMR). Fie…
Acoustic phonon softening and lattice instability driven by on-site - hybridization in CeCoSi
Takeshi Matsumura, Takumi Hasegawa, Ryuma Nakajima +5
Soft phonon modes in tetragonal CeCoSi, which undergoes a structural transition at K followed by antiferromagnetic order at K, have been investigated us…
Large Spontaneous Nonreciprocal Charge Transport in a Zero-Magnetization Antiferromagnet
Kenta Sudo, Yuki Yanagi, Mitsuru Akaki +2
Spontaneous breaking of time-reversal and spatial-inversion symmetries in solids triggers diverse intriguing phenomena. Although these phenomena have been extensively studied in in…