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相关论文: Low Temperature metamagnetism and Hall effect anom…

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Kagome magnets are believed to have numerous exotic physical properties due to the possible interplay between lattice geometry, electron correlation and band topology. Here, we report the large anomalous Hall effect in the kagome…

材料科学 · 物理学 2021-06-22 Dong Chen , Congcong Le , Chenguang Fu , Haicheng Lin , Walter Schnelle , Yan Sun , Claudia Felser

Epitaxial thin films of the heavy fermion superconductor UNi2Al3 with Tc{max}=0.98K were investigated. The transition temperature Tc depends on the current direction which can be related to superconducting gaps opening at different…

强关联电子 · 物理学 2009-11-10 M. Jourdan , A. Zakharov , M. Foerster , H. Adrian

We present magnetization, specific heat, resistivity, and Hall effect measurements on the cubic B20 phase of MnGe and CoGe and compare to measurements of isostructural FeGe and electronic structure calculations. In MnGe, we observe a…

Magnetization, electrical resistivity and specific heat measurements were performed on high-quality single crystalline SmTi$_2$Al$_{20}$ (residual resistivity ratio $\sim$ 40) grown by Al self-flux method. A Kondo-like $\log T$ dependence…

强关联电子 · 物理学 2011-08-24 Ryuji Higashinaka , Takuya Maruyama , Akihiro Nakama , Ryoichi Miyazaki , Yuji Aoki , Hideyuki Sato

We investigate the thermodynamic properties of FeSe under the in-plane magnetic fields using torque magnetometry, specific heat, magnetocaloric measurements. Below the upper critical field Hc2, we observed the field-induced anomalies at H1…

We report field and temperature dependent measurements of the thermoelectric power (TEP) across the pseudo-metamagnetic transition (MMT) in CeRu$_2$Si$_2$. We applied the thermoelectric gradient parallel and perpendicular to the field along…

强关联电子 · 物理学 2015-06-22 Mounir Boukahil , Alexandre Pourret , Georg Knebel , Dai Aoki , Yoshichika Onuki , Jacques Flouquet

We report that nonmagnetic heavy-fermion (HF) iron oxypnictide CeFePO with two-dimensional XY-type anisotropy shows a metamagnetic behavior at the metamagnetic field H_M \simeq 4 T perpendicular to the c-axis and that a critical behavior is…

强关联电子 · 物理学 2012-01-17 S. Kitagawa , H. Ikeda , Y. Nakai , T. Hattori , K. Ishida , Y. Kamihara , M. Hirano , H. Hosono

We present a systematic study of the dc-resistivity, Hall effect, and magnetoresistance in the normal state of quasi 2D heavy fermion superconductors CeMIn5 (M: Rh and Co) under pressure. Here the electronic system evolves with pressure…

We study thermal and electrical transport in metals and superconductors near a quantum phase transition where antiferromagnetic order disappears. The same theory can also be applied to quantum phase transitions involving the loss of certain…

强关联电子 · 物理学 2017-08-07 Shubhayu Chatterjee , Subir Sachdev , Andreas Eberlein

We report the transport and thermodynamic properties under hydrostatic pressure in the antiferromagnetic Kondo compound CeMg2Cu9 with a two-dimensional arrangement of Ce atoms. Magnetic specific heat Cmag(T) shows a Schottky-type anomaly…

The study of subtle effects on transport in semiconductors requires high-quality epitaxial structures with low defect density. Using hybrid molecular beam epitaxy (MBE), SrTiO$_3$ films with low-temperature mobility exceeding 42,000…

We have measured the field-dependent heat capacity in the tetragonal antiferromagnets CeRhIn$_{5}$ and Ce$_{2}$RhIn$_{8}$, both of which have an enhanced value of the electronic specific heat coefficient $\gamma \sim 400$ mJ/mol-Ce K$^{2}$…

强关联电子 · 物理学 2009-11-07 A. L. Cornelius , P. G. Pagliuso , M. F. Hundley , J. L. Sarrao

The electrical resistance, Hall resistance and thermoelectric power of the Ising-like antiferromagnet UIrSi3 were measured as functions of temperature and magnetic field. We have observed that the unequivocally different characters of…

RPdBi (R = Er, Ho, Gd, Dy, Y, Nd) compounds were studied by means of x-ray diffraction, magnetic susceptibility, electrical resistivity, magnetoresistivity, thermoelectric power and Hall effect measurements, performed in the temperature…

材料科学 · 物理学 2011-08-01 K. Gofryk , D. Kaczorowski , T. Plackowski , A. Leithe-Jasper , Yu. Grin

The antiferromagnetic ground state and the metamagnetic transition to the ferromagnetic state of CsCl-ordered FeRh epilayers have been characterized using Hall and magnetoresistance measure- ments. On cooling into the ground state, the…

强关联电子 · 物理学 2015-03-20 M. A. de Vries , M. L. Loving , A. P. Mihai , L. H. Lewis , D. Heiman , C. H. Marrows

We report on a systematic study of Hall effect using high quality single crystals of type-II Weyl semimetal WTe2 with the applied magnetic field B//c. The residual resistivity ratio of 1330 and the large magnetoresistance of 1.5\times10^6 %…

材料科学 · 物理学 2017-10-03 Rajveer Jha , Ryuji Higashinaka , Tatsuma D. Matsuda , Raquel A. Ribeiro , Yuji Aoki

We present THz range optical conductivity data of a thin film of the near quantum critical heavy fermion compound CeFe$_2$Ge$_2$. Our complex conductivity measurements find a deviation from conventional Drude-like transport in a temperature…

强关联电子 · 物理学 2016-02-10 G. Bossé , LiDong Pan , Yize S. Li , L. H. Greene , J. Eckstein , N. P. Armitage

Ce$_{2}$$M$Al$_{7}$Ge$_{4}$ ($M=$ Co, Ir, Ni or Pd) are heavy-fermion materials and host a variety of ground states ranging from magnetism to non-Fermi liquid behavior. The Co, Ir, and Ni members of the series undergo magnetic ordering with…

强关联电子 · 物理学 2025-05-23 M. O. Ajeesh , A. O. Scheie , Yu Liu , L. Keller , S. M. Thomas , P. F. S. Rosa , E. D. Bauer

CeCoIn5 is a heavy fermion Type-II superconductor which exhibits clear indications of Pauli-limited superconductivity. A variety of measurements give evidence for a transition at high magnetic fields inside the superconducting state, when…

强关联电子 · 物理学 2010-10-28 E. Blackburn , P. Das , M. R. Eskildsen , E. M. Forgan , M. Laver , C. Niedermayer , C. Petrovic , J. S. White

Single crystal x-ray diffraction, magnetic susceptibility, heat capacity, and electrical resistivity measurements are reported for the new tetragonal compound Ce$_{2}$PdGe$_{3}$, which forms in the space group $P4_{2}/mmc$ (\#131) $-$ a…

强关联电子 · 物理学 2015-06-22 R. E. Baumbach , A. Gallagher , T. Besara , J. Sun , T. Siegrist , D. J. Singh , J. D. Thompson , F. Ronning , E. D. Bauer