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Journal Articles

Spin dynamics in natural multiferroic pyroxene NaFeSi$$_2$$O$$_6$$

Prokhnenko, O.*; Nikitin, S. E.*; Kaneko, Koji; Tabata, Chihiro; Hirose, Yusuke; Tokiwa, Yoshifumi; Haga, Yoshinori; Fujita, Masaki; Nojiri, Hiroyuki*; Anovitz, L. M.*; et al.

Physical Review B, 112(9), p.094402_1 - 094402_7, 2025/09

https://doi.org/10.1103/tb2z-skj1
 Times Cited Count：0 Percentile：0.00

Journal Articles

Orbital magnetic moments in FeCr$$_2$$S$$_4$$ studied by X-ray magnetic circular dichroism

Verma, V. K.*; Shibata, Goro; Fujimori, Atsushi*; 8 of others*

Physical Review B, 112(10), p.104444_1 - 104444_8, 2025/09

https://doi.org/10.1103/hdzg-mn6r

Journal Articles

Magnon-induced scalar spin chirality in kagome and honeycomb ferromagnets

Esaki, Nanse; Go, G.*; Kim, S. K.*

Physical Review B, 112(10), p.104440_1 - 104440_10, 2025/09

https://doi.org/10.1103/fhwj-76zp

Journal Articles

State-of-the-art beam loss minimization at high intensity beam operation of the 3 GeV rapid cycling synchrotron of the Japan Proton Accelerator Research Complex

Saha, P. K.; Harada, Hiroyuki; Tamura, Fumihiko; Okabe, Kota; Yoshimoto, Masahiro; Shobuda, Yoshihiro; Okita, Hidefumi; Kojima, Kunihiro; Nakanoya, Takamitsu; Hatakeyama, Shuichiro; et al.

Physical Review Accelerators and Beams (Internet), 28(7), p.074201_1 - 074201_23, 2025/07

https://doi.org/10.1103/tbyh-jcq3

Journal Articles

Magnetism of kagome metals (Fe$$_{1-x}$$Co$$_x$$)Sn studied by $$mu$$SR

Cai, Y.*; Yoon, S.*; Sheng, Q.*; Zhao, G.*; Seewald, E. F.*; Ghosh, S.*; Ingham, J.*; Pasupathy, A. N.*; Queiroz, R.*; Lei, H.*; et al.

Physical Review B, 111(21), p.214412_1 - 214412_17, 2025/06

https://doi.org/10.1103/PhysRevB.111.214412
 Times Cited Count：0 Percentile：0.00(Materials Science, Multidisciplinary)

Journal Articles

Origin of ferroelectric polarization in bismuth sodium titanate

Noguchi, Yuji*; Aso, Seiyu*; Oyama, Kenji*; Ishigaki, Toru*; Yoneda, Yasuhiro; Matsuo, Hiroki*

Physical Review B, 111(21), p.214113_1 - 214113_13, 2025/06

https://doi.org/10.1103/f1l8-6g3f
 Times Cited Count：0 Percentile：0.00(Materials Science, Multidisciplinary)

We explore the electronic structure of high-quality bismuth sodium titanate (Bi$$_{1/2}$$Na$$_{1/2}$$TiO$$_3$$) powders through a comprehensive approach combining the maximum entropy method (MEM)/Rietveld analysis of synchrotron radiation X-ray diffraction data collected at 200 K with density functional theory (DFT) calculations. We conclude that the covalent Bi-O bond and the resultant ferroelectricity stem primarily from the Bi-6p-O3-2p orbital interaction mediated through Ti-3d.

Journal Articles

Neutron diffraction study of the crystal and magnetic structures of antiferromagnetic manganese deuteride at high temperatures and high pressures

Machida, Akihiko*; Saito, Hiroyuki*; Aoki, Katsutoshi*; Komatsu, Kazuki*; Hattori, Takanori; Sano, Asami; Funakoshi, Kenichi*; Machida, Shinichi*; Sato, Toyoto*; Orimo, Shinichi*

Physical Review B, 111(22), p.224413_1 - 224413_6, 2025/06

https://doi.org/10.1103/yf8k-cy61
 Times Cited Count：1 Percentile：68.15(Materials Science, Multidisciplinary)

The crystal and magnetic structures of antiferromagnetic Mn deuterides formed by hydrogenating Mn metal at high temperature and high pressure, fcc $$gamma$$-MnDx and hcp $$epsilon$$-MnDx, were investigated by in-situ neutron powder diffraction. Deuterium atoms partially occupied the octahedral interstitial positions of the fcc and hcp metal lattices. The site occupancies increased rapidly with decreasing temperature from $$sim$$700 to $$sim$$450 K and remained down to 300 K. N$'{e}$el temperature of 543(10) K was determined for $$gamma$$-MnD$$_{0.34}$$. For $$epsilon$$-MnD$$_{0.62}$$, saturation magnetic moment and N$'{e}$el temperature were determined to be 0.82(1) $$mu_B$$ and 347(3) K, respectively. The N$'{e}$el temperatures determined for $$gamma$$-MnD$$_{0.34}$$ and $$epsilon$$-MnD$$_{0.62}$$ are consistent with those predicted by the respective Slater-Pauling curves proposed in previous studies. The updated N$'{e}$el temperatures provide insights into the development of more accurate Slater-Pauling curves based on electronic band structure calculations.

Journal Articles

Intrinsic spin Nernst effect in topological Dirac and magnetic Weyl semimetals

Matsushita, Taiki*; Ozawa, Akihiro*; Araki, Yasufumi; Fujimoto, Junji*; Sato, Masatoshi*

Physical Review B, 111(24), p.245131_1 - 245131_11, 2025/06

https://doi.org/10.1103/dlt5-zxm9
 Times Cited Count：0 Percentile：0.00(Materials Science, Multidisciplinary)

Journal Articles

Crystal structures and phase stability of antiferroelectric $$R$$ phases in undoped and Ca-modified sodium niobates

Aso, Seiyu*; Matsuo, Hiroki*; Yoneda, Yasuhiro; Morikawa, Daisuke*; Tsuda, Kenji*; Oyama, Kenji*; Ishigaki, Toru*; Noguchi, Yuji*

Physical Review B, 111(17), p.174114_1 - 174114_12, 2025/05

https://doi.org/10.1103/PhysRevB.111.174114
 Times Cited Count：1 Percentile：68.15(Materials Science, Multidisciplinary)

We investigate the crystal structures, phase transitions, and phase stability of undoped and Ca-modified NaNbO$$_{3}$$ through a combined analysis of high-resolution synchrotron radiation X-ray and neutron diffraction, convergent-beam electron diffraction, and density functional theory (DFT) calculations. It is demonstrated that the antiferroelectric (AFE)-$$R$$ phase is stabilized over a wide temperature range of 200 to 800 K by Ca modification, and that the NaNbO$$_3$$ is stabilized by temperature-driven isostatic pressure accompanied by lattice expansion, whereas the Ca-modified NaNbO$$_3$$ is induced by composition-induced chemical pressure along with lattice shrinkage.

Journal Articles

Identification of two distinct antiferromagnetic phases in the Au-Al-Gd quasicrystal approximant

Labib, F.*; Sugimoto, Takanori*; Takakura, Hiroyuki*; Ishikawa, Asuka*; Tamura, Ryuji*

Physical Review B, 111(17), p.174409_1 - 174409_9, 2025/05

https://doi.org/10.1103/PhysRevB.111.174409
 Times Cited Count：3 Percentile：92.31(Materials Science, Multidisciplinary)

Journal Articles

Microscopic theory of Rashba-Edelstein magnetoresistance

Yama, Masaki*; Matsuo, Mamoru; Kato, Takeo*

Physical Review B, 111(14), p.144416_1 - 144416_20, 2025/04

https://doi.org/10.1103/PhysRevB.111.144416
 Times Cited Count：0 Percentile：0.00(Materials Science, Multidisciplinary)

Journal Articles

Magnetoferroelectric phase transition induced by latent spin-lattice coupling in the geometrically frustrated magnet $$mathrm{CuFe_{0.95}Al_{0.05}O_{2}}$$

Tamatsukuri, Hiromu; Uchihara, Takeru*; Mitsuda, Setsuo*; Ishii, Yuta*; Nakao, Hironori*; Takehana, Kanji*; Imanaka, Yasutaka*

Physical Review B, 111(13), p.134403_1 - 134403_9, 2025/04

https://doi.org/10.1103/PhysRevB.111.134403
 Times Cited Count：1 Percentile：68.15(Materials Science, Multidisciplinary)

Journal Articles

Crystal structures of ReO$$_3$$ under hydrostatic pressure; A Combined neutron, X-ray, Raman, and first-principles calculation study

Efthimiopoulos, I.*; Klotz, S.*; Kunc, K.*; Baptiste, B.*; Chauvigne, P.*; Hattori, Takanori

Physical Review B, 111(13), p.134103_1 - 134103_13, 2025/04

https://doi.org/10.1103/PhysRevB.111.134103
 Times Cited Count：1 Percentile：68.15(Materials Science, Multidisciplinary)

We present a comprehensive study of the high pressure behaviour of ReO$$_3$$ using X-ray and neutron diffraction, Raman scattering and first-principles calculations to 15 GPa. We show that the ambient pressure $$Pm$$$=3$m$$ structure converts at 0.7 GPa in a continuous phase transition directly to a cubic phase with space group $$Im$$$=3 which is then stable up to at least 15 GPa. We show that previous reports of monoclinic $C2/c$$ and rhombohedral $$R$$$=3$c$$ structures in this pressure range are an artifact due to an alteration of the sample by high-flux synchrotron X-ray radiation. The structural pressure dependence of the $$Im$$$=3 phase is reported as well as the precise equation of state. Raman scattering data of both natural and isotopically enriched $^{18}$$O samples are presented. The data shed light onto the unusual transition and densification mechanism due to progressive tilting of essentially rigid ReO$$_6$$ octahedra.

Journal Articles

Magnetic and quadrupole coupling emerging in NdB$$_4$$ with geometrically frustrated orthogonal antiferromagnetic dimer

Metoki, Naoto; Yamauchi, Hiroki; Hagihara, Masato; Watanuki, Ryuta*; Kawamura, Seiko; Kofu, Maiko*; Nakajima, Kenji; Matsuda, Masaaki*

Physical Review B, 111(10), p.104424_1 - 104424_9, 2025/03

https://doi.org/10.1103/PhysRevB.111.104424
 Times Cited Count：1 Percentile：68.15(Materials Science, Multidisciplinary)

Inelastic neutron scattering experiments were carried out to understand the unusual successive order in NdB$$_4$$ with the frustrated Shatry-Sutherland (SS) lattice. The pseudo-quartet with $$|pm frac{5}{2}rangle$$ and $$|pm frac{7}{2}rangle$$ splits into four levels in the magnetically ordered states. The spectra can be explained with the on-site magnetic interaction $$langle J_x rangle J_x$$, the coupling of $$J_x$$ with quadrupole $$O_{zx}$$, and the uniaxial crystalline electric field. The $$f$$-electron states reproduce the temperature dependences of the in-plane moment $$m_perp=langle J_x rangle$$ which is the primary order parameter, and a weakly induced $$m_c=langle J_z rangle$$ as the secondary order parameter. The magnetic-quadrupole coupling emerges and play essential role under the geometrical frustration, where the Heisenberg interactions are cancelled out.

Journal Articles

Spin-singlet ground state with spin gap in $$S_{rm eff}$$ = $$frac{1}{2}$$ antiferromagnetic tetramer compound Yb$$_2$$SiO$$_5$$

Hase, Masashi*; Kaneko, Koji; Tabata, Chihiro; Yamauchi, Hiroki; Tsujii, Naohito*; D$"o$nni, A.*

Physical Review B, 111(9), p.094403_1 - 094403_9, 2025/03

https://doi.org/10.1103/PhysRevB.111.094403
 Times Cited Count：0 Percentile：0.00(Materials Science, Multidisciplinary)

Journal Articles

Nonreciprocal resonant surface acoustic wave absorption in Y$$_{3}$$Fe$$_{5}$$O$$_{12}$$

Ba, Y.*; Yamamoto, Kei; 6 of others*

Physical Review B, 111(10), p.104401_1 - 104401_15, 2025/03

https://doi.org/10.1103/PhysRevB.111.104401
 Times Cited Count：1 Percentile：68.15(Materials Science, Multidisciplinary)

Journal Articles

Spontaneous magnetic field and disorder effects in BaPtAs$$_{1-x}$$Sb$$_x$$ with a honeycomb network

Adachi, Tadashi*; Ogawa, Taiki*; Komiyama, Yota*; Sumura, Takuya*; Saito-Tsuboi, Yuki*; Takeuchi, Takaaki*; Mano, Kohei*; Manabe, Kaoru*; Kawabata, Koki*; Imazu, Tsuyoshi*; et al.

Physical Review B, 111(10), p.L100508_1 - L100508_6, 2025/03

https://doi.org/10.1103/PhysRevB.111.L100508
 Times Cited Count：0 Percentile：0.00(Materials Science, Multidisciplinary)

Journal Articles

Intrinsic low-temperature magnetic properties on ultraclean UTe$$_2$$ with $$T_c$$ = 2.1 K revealed by $$^{125}$$Te NMR

Matsumura, Hiroki*; Tokunaga, Yo; Sakai, Hironori; Kambe, Shinsaku; 13 of others*

Physical Review B, 111(9), p.094507_1 - 094507_9, 2025/03

https://doi.org/10.1103/PhysRevB.111.094507
 Times Cited Count：2 Percentile：85.69(Materials Science, Multidisciplinary)

Journal Articles

Spin current generation due to differential rotation

Funato, Takumi*; Kinoshita, Shunichiro*; Tanahashi, Norihiro*; Nakamura, Shin*; Matsuo, Mamoru

Physical Review B, 111(6), p.L060403_1 - L060403_7, 2025/02

https://doi.org/10.1103/PhysRevB.111.L060403
 Times Cited Count：1 Percentile：68.15(Materials Science, Multidisciplinary)

Journal Articles

Theory of the spin Seebeck effect influenced by crystal-field excitations in Tb$$_3$$Fe$$_5$$O$$_{12}$$

Mori, Michiyasu; Tomasello, B.*; Ziman, T.*

Physical Review B, 111(1), p.014407_1 - 014407_12, 2025/01

https://doi.org/10.1103/PhysRevB.111.014407
 Times Cited Count：0 Percentile：0.00(Materials Science, Multidisciplinary)

841 (Records 1-20 displayed on this page)