Hidden order state under uni-axial stress in URuSi

Kambe, Shinsaku; Ishitobi, Takayuki; Harima, Hisatomo*

Journal of the Physical Society of Japan, 94(10), p.104703_1 - 104703_5, 2025/10

https://doi.org/10.7566/JPSJ.94.104703

Hidden order state in URuSi under uni-axial stress along [100] and [110] directions is investigated. Induced space groups and order parameters under uni-axial stress are deduced based on experimental facts and group-theoretical considerations. A scheme to identify the order parameter of hidden ordering using measurements under uni-axial stress is proposed.

Three-stage Phase Transitions and Field-induced Phases in CeCoSi; A Landau Theory

Ishitobi, Takayuki

Journal of the Physical Society of Japan, 94(7), p.073703_1 - 073703_4, 2025/06

https://doi.org/10.7566/JPSJ.94.073703

Orbital moir and quadrupolar triple-q physics in a triangular lattice

Hattori, Kazumasa*; Ishitobi, Takayuki; Tsunetsugu, Hirokazu*

Physical Review Research (Internet), 6(4), p.L042068_1 - L042068_7, 2024/12

https://doi.org/10.1103/PhysRevResearch.6.L042068

Trigonal antisymmetric quadrupole interaction and exotic kinks

Ishitobi, Takayuki

no journal, , 

no abstracts in English

None

Ishitobi, Takayuki

no journal, , 

no abstracts in English

None

Ishitobi, Takayuki

no journal, , 

no abstracts in English

Physical description of crystal

Ishitobi, Takayuki

no journal, , 

NQR/NMR study under uniaxial stress in URuSi

Kambe, Shinsaku; Haga, Yoshinori; Sakai, Hironori; Ishitobi, Takayuki; Tokunaga, Yo; Matsumura, Hiroki*; Kitagawa, Shunsaku*; Ishida, Kenji*; Harima, Hisatomo*

no journal, , 

Let us consider the hidden order of URuSi. Recent studies have shown that the electronic state symmetry of hidden ordered states is limited to a few space groups. However, it remains difficult to distinguish because it has the same high symmetry. Therefore, it is necessary to see how the symmetry of the hidden ordered state is reduced by external fields such as uniaxial pressure. In this study, we will discuss Ru-NQR and Si-NMR when applying uniaxial pressure in the [100] and [110] directions to form orthorhombic crystals based on group theory.

Efficient local symmetry analysis using cluster multipole expansion and its application to the hidden order in URuSi

Ishitobi, Takayuki

no journal, , 

no abstracts in English

NMR/NQR under uniaxial stress in URuSi

Kambe, Shinsaku; Ishitobi, Takayuki; Haga, Yoshinori; Sakai, Hironori; Tokunaga, Yo; 4 of others*

no journal, , 

NMR/NQR study under uni-axial stress in the hidden ordered state of URuSi is reported.