Publications (88)
Incommensurate antiferromagnetism in UTe2 under pressure
W. Knafo, T. Thebault, P. Manuel +10
The discovery of multiple superconducting phases in UTe2 boosted research on correlated-electron physics. This heavy-fermion paramagnet was rapidly identified as a reference compou…
Evidence of Strong Correlations and Coherence-Incoherence Crossover in the Iron Pnictide Superconductor KFe2As2
F. Hardy, A. E. Boehmer, D. Aoki +9
Using resistivity, heat-capacity, thermal-expansion, and susceptibility measurements we study the normal-state behavior of KFe2As2. We find that both the Sommerfeld coefficient gam…
Anisotropic signatures of the electronic correlations in the electrical resistivity of UTe
T. Thebault, W. Knafo, M. Vališka +5
Multiple unconventional superconducting phases are suspected to be driven by magnetic fluctuations in the heavy-fermion paramagnet UTe, and a challenge is to identify the signa…
Collapse of antiferromagnetism in CeRh2Si2 : volume versus entropy
A. Villaume, D. Aoki, Y. Haga +3
The thermal expansion of the heavy fermion compound CeRh2Si2 has been measured under pressure as a function of temperature using strain gages. A large anomaly associated to the Nee…
Mass Enhancement and Reentrant Ground State in Magnetic Field
A. Miyake, D. Aoki, G. Knebel +2
Three different cases of magnetic field reentrant ground states in heavy fermion systems, URhGe, UGe and CeRhIn recently studied in Grenoble, are discussed. URhGe is a ferr…
Field Induced Multiple Superconducting Phases in UTe2 along Hard Magnetic Axis
H. Sakai, Y. Tokiwa, P. Opletal +7
The superconducting (SC) phase diagram in uranium ditelluride is explored under magnetic fields () along the hard magnetic b-axis using a high-quality single crystal with $T_{\r…
Pairing interaction in superconducting UCoGe tunable by magnetic field
K. Ishida, S. Matsuzaki, M. Manago +5
The mechanism of unconventional superconductivity, such as high-temperature-cuprate, Fe-based, and heavy-fermion superconductors, has been studied as a central issue in condensed-m…
Similarity of Fermi Surface in the Hidden Order State and in the Antiferromagnetic State of URu2Si2
E. Hassinger, G. Knebel, T. M. Matsuda +3
Shubnikov-de Haas measurements of high quality URu2Si2 single crystals reveal two previously unobserved Fermi surface branches in the so-called hidden order phase. Therefore about…
Skutterudite Results Shed Light on Heavy Fermion Physics
E. Hassinger, J. Derr, J. Levallois +6
Only few selected examples among the great diversity of anomalous rare earth skutterudite are reviewed. Focus is first given on PrFe4P12 in comparison with URu2Si2. For PrFe4P12, g…
Exotic magnetic phase diagram and extremely robust antiferromagnetism in CeRhIn
T. Klein, C. Marcenat, A. Demuer +3
The antiferromagnetic heavy-fermion compound CeRhIn belongs to the same family and bears similarities with the well-studied prototypical material CeRhIn, which demonstr…
Unconventional Superconductivity in UTe2
D. Aoki, J. -P. Brison, J. Flouquet +4
The novel spin-triplet superconductor candidate UTe2 was discovered only recently at the end of 2018 and attracted enormous attention. We review key experimental and theoretical pr…
Anomalous Anisotropy of the Lower Critical Field and Meissner Effect in UTe2
C. Paulsen, G. Knebel, G. Lapertot +6
We report on low temperature susceptibility and magnetization measurements made on single crystals of the recently discovered heavy-fermion superconductor UTe and compare the r…
Visualization of vortex sheets and half quantum vortices in the chiral odd-parity superconductor UPt
P. GarcÃa-Campos, V. O. Dolocan, A. D. Huxley +3
Superconductivity is characterized by vanishing electrical resistance and magnetic flux expulsion. For conventional type II superconductors, the magnetic flux expulsion is incomple…
URuSi under intense magnetic fields: from hidden order to spin-density wave
W. Knafo, D. Aoki, G. W. Scheerer +6
A review of recent state-of-the-art pulsed field experiments performed on URuSi under a magnetic field applied along its easy magnetic axis is given. Resistivi…
Interplay of magnetism, Fermi surface reconstructions, and hidden-order in the heavy-fermion material URuSi
G. W. Scheerer, W. Knafo, D. Aoki +4
URuSi is surely one of the most mysterious of the heavy-fermion compounds. Despite more than twenty years of experimental and theoretical works, the order parameter of the…
Bulk signatures of re-entrant superconductivity in UTe from ultrasound measurements
N. Marquardt, C. Duffy, C. Proust +7
We report bulk ultrasound measurements up to 80 T and down to 0.5 K of the field re-entrant superconducting phase of the unconventional superconductor UTe. Clear bulk signature…
Drastic change of the Fermi surface across the metamagnetic transition in CeRhSi
K. Götze, D. Aoki, F. Lévy-Bertrand +2
We report high field de Haas-van Alphen (dHvA) effect measurements in CeRhSi both below and above the first-order 26 T metamagnetic transition from an antiferromagnetic to…
High-field moment polarization in the ferromagnetic superconductor UCoGe
W. Knafo, T. D. Matsuda, D. Aoki +7
We report magnetization and magnetoresistivity measurements on the isostructural ferromagnetic superconductors UCoGe and URhGe in magnetic fields up to 60 T and temperatures from 1…
Assessment of the U and Co magnetic moments in UCoGe by X-ray magnetic circular dichroism
M. Taupin, J. -P. Brison, D. Aoki +4
The ferromagnetic superconductor UCoGe has been investigated by high field X-ray magnetic circular dichroism (XMCD) at the U-M and Co/Ge-K edges. The analysis of the branch…
Tricritical point and wing structure in the itinerant ferromagnet UGe2
V. Taufour, D. Aoki, G. Knebel +1
Precise resistivity measurements on the ferromagnetic superconductor UGe2 under pressure p and magnetic field H reveal a previously unobserved change of the anomaly at the Curie te…
Coexistence of antiferromagnetism and superconductivity in heavy-fermions systems
Y. Kitaoka, Y. Kawasaki, T. Mito +9
We report the novel pressure(P)-temperature(T) phase diagrams of antiferromagnetism (AF) and superconductivity (SC) in CeRhIn, CeIn and CeCuSi revealed by the NQR m…
A signature of hidden order in URu2Si2 : the excitation at the wavevector Q0 = (100)
A. Villaume, F. Bourdarot, E. Hassinger +4
Simultaneous neutron-scattering and thermal expansion measurements on the heavy-fermion superconductor URu2Si2 under hydrostatic pressure of 0.67 GPa have been performed in order t…
Fermi-liquid versus non-Fermi-liquid/'strange-metal' fits to the electrical resistivity in the quantum critical magnetic regime of an unconventional superconductor
W. Knafo, T. Thebault, K. Somesh +4
The question of a possible quantum critical point lying inside of a superconducting phase is central for understanding unconventional superconductivity. In various unconventional s…
Change of superconducting character in UTe2induced by magnetic field
K. Kinjo, H. Fujibayashi, S. Kitagawa +13
UTe2 is a recently discovered spin-triplet superconductor. One of the characteristic features of UTe2 is a magnetic field (H)-boosted superconductivity above 16 T when H is applied…
Quasi-two-dimensional Fermi surfaces of the heavy-fermion superconductor CePdIn
K. Götze, J. Klotz, D. Gnida +7
We report low-temperature de Haas-van Alphen (dHvA) effect measurements in magnetic fields up to 35 T of the heavy-fermion superconductor CePdIn. The comparison of the expe…
Metamagnetism in the high-pressure tetragonal phase of UTe
T. Thebault, D. Braithwaite, G. Lapertot +3
A structural orthorhombic-to-tetragonal phase transition was recently discovered in the heavy-fermion compound UTe at a pressure ~GPa [Honda \textit{et al.}, J. P…
Pressure-phase diagram of UCoGe by ac-susceptibility and resistivity measurements
E. Hassinger, D. Aoki, G. Knebel +1
UCoGe is one of the few compounds showing the coexistence of ferromagnetism and superconductivity at ambient pressure. With T_Curie = 3 K and T_SC = 0.6 K it is near a quantum phas…
Convergence of the enhancement of the effective mass under pressure and magnetic field in heavy-fermion compounds: CeRu2Si2, CeRh2Si2, and CeIn3
J. Flouquet, D. Aoki, W. Knafo +6
Emphasis is given on the observation of a convergence to a critical value of the effective mass of a heavy fermion compound by tuning it through a quantum instability either by app…
Three-dimensional critical phase diagram of the Ising antiferromagnet CeRhSi under intense magnetic field and pressure
W. Knafo, R. Settai, D. Braithwaite +3
Using novel instrumentation to combine extreme conditions of intense pulsed magnetic field up to 60~T and high pressure up to 4~GPa, we have established the three-dimensional (3D)…
Superconducting Gap of UCoGe probed by Thermal Transport
M. Taupin, L. Howald, D. Aoki +1
Thermal conductivity measurements in the superconducting state of the ferromagnet UCoGe were performed at very low temperatures and under magnetic field on samples of different qua…
Trends in Heavy Fermion Matter
J. Flouquet, D. Aoki, F. Bourdarot +7
A brief review on major advances in heavy fermion physics is presented including the Ce metal phase diagram, the huge effective mass detected in CeAl3, and the successive discoveri…
Feedback of superconductivity on the magnetic excitation spectrum of UTe
S. Raymond, W. Knafo, G. Knebel +5
We investigate the spin dynamics in the superconducting phase of UTe by triple-axis inelastic neutron scattering on a single crystal sample. At the wave-vector =(0,…
Coexistence of Antiferromagnetism and Superconductivity near the Quantum Criticality in Heavy Fermion Compound CeRhIn
T. Mito, S. Kawasaki, Y. Kawasaki +5
We report a study on the interplay between antiferromagnetism (AFM) and superconductivity (SC) in a heavy-fermion compound CeRhIn under pressure GPa. The onset of the…
Field-induced antiferromagnetic transition in CeIrIn
Y. Tokunaga, M. -T. Suzuki, S. Krämer +6
We report low-temperature In nuclear magnetic resonance (NMR) study of the prototypical heavy-fermion compound CeIrIn in high magnetic fields applied close to the cryst…
Unique Spin Dynamics and Unconventional Superconductivity in the Layered Heavy Fermion Compound CeIrIn_5:NQR Evidence
G. -q. Zheng, K. Tanabe, T. Mito +5
We report measurements of the ^{115}In nuclear spin-lattice relaxation rate (1/T_1) between T=0.09 K and 100 K in the new heavy fermion (HF) compound CeIrIn_5. At 0.4 K < T < 100 K…
Tunneling spectroscopy of the superconducting state of URu2Si2
A. Maldonado, I. Guillamon, J. G. Rodrigo +4
We present measurements of the superconducting gap of URuSi made with scanning tunneling microscopy (STM) using a superconducting tip of Al. We find tunneling conductance c…
Magnetic structure of CeRhIn under magnetic field
S. Raymond, E. Ressouche, G. Knebel +2
The magnetically ordered ground state of CeRhIn at ambient pressure and zero magnetic field is an incomensurate helicoidal phase with the propagation vector =(1/2, 1/…
Multiple superconducting phases in a nearly ferromagnetic system
D. Braithwaite, M. Valiska, G. Knebel +7
Multiple superconducting order parameters are extremely rare. Here we show that a very small pressure can induce this phenomenon in the recently discovered heavy fermion supercondu…
Search for Multipolar Instability in URuSi Studied by Ultrasonic Measurements under Pulsed Magnetic Field
T. Yanagisawa, S. Mombetsu, H. Hidaka +10
The elastic properties of URuSi in the high-magnetic field region above 40 T, over a wide temperature range from 1.5 to 120 K, were systematically investigated by means of…
Magnetic order in Ce0.95Nd0.05CoIn5: the Q-phase at zero magnetic field
S. Raymond, S. M. Ramos, D. Aoki +3
We report neutron scattering experiment results revealing the nature of the magnetic order occurring in the heavy fermion superconductor Ce0.95Nd0.05CoIn5, a case for which an anti…
Origin of the 30 T transition in CeRhIn in tilted magnetic fields
S. Mishra, D. Gorbunov, D. J. Campbell +9
We present a comprehensive ultrasound study of the prototypical heavy-fermion material CeRhIn, examining the origin of the enigmatic 30 T transition. For a field applied at 2$^…
Quantum criticality and Lifshitz transition in the Ising system CeRu2Si2: Comparison with YbRh2Si2
A. Pourret, D. Aoki, M. Boukahil +7
New thermoelectric power (TEP) measurements on prototype heavy-fermion compounds close to magnetic quantum criticality are presented. The highly sensitive technique of TEP is an un…
Temperature dependent tunneling spectroscopy in the heavy fermion CeRu2Si2 and in the antiferromagnet CeRh2Si2
A. Maldonado, H. Suderow, S. Vieira +2
CeRu2Si2 and CeRh2Si2 are two similar heavy fermion stoichiometric compounds located on the two sides of the magnetic quantum critical phase transition. CeRh2Si2 is an antiferromag…
Pressure-Induced Rotational Symmetry Breaking in URuSi
J. Choi, O. Ivashko, N. Dennler +8
Phase transitions and symmetry are intimately linked. Melting of ice, for example, restores translation invariance. The mysterious hidden order (HO) phase of URuSi has, des…
Lattice dynamics of the heavy fermion compound URuSi
J. Buhot, M. A. Méasson, Y. Gallais +14
We report a comprehensive investigation of the lattice dynamics of URuSi as a function of temperature using Raman scattering, optical conductivity and inelastic neutron sca…
Ir 5-band Derived Superconductivity in LaIr
A. Bhattacharyya, D. T. Adroja, P. K. Biswas +4
We have studied the superconducting properties of LaIr with a rhombohedral structure using magnetization, heat capacity, and muon-spin rotation/relaxation (SR) measurements…
Itinerant metamagnetism of CeRu2Si2 : bringing out the dead. Comparison with the new Sr3Ru2O7 case
J. Flouquet, P. Haen, S. Raymond +2
Focus is given on the macroscopic and microscopic experimental works realized during a decade on the clear case of itinerant metamagnetism in the heavy fermion paramagnetic compoun…
Metamagnetic Transition in UCoAl Probed by Thermoelectricity Measurements
A. Palacio-Morales, A. Pourret, G. Knebel +4
We report field and temperature dependent measurements of the thermoelectric power (TEP) and the Nernst effect in the itinerant metamagnet UCoAl. The magnetic field is applied alon…
Coexistence of antiferromagnetism and superconductivity in CeRhIn5 under high pressure and magnetic field
G. Knebel, D. Aoki, D. Braithwaite +2
We report on detailed ac calorimetry measurements under high pressure and magnetic field of CeRhIn5. Under hydrostatic pressure the antiferromagnetic order vanishes near p_c*=2 GPa…
Zero-field current-induced Hall effect in ferrotoroidic metal
K. Ota, M. Shimozawa, T. Muroya +7
We have performed precise Hall measurements for the ferrotoroidic candidate material UNi4B. Below Neel temperature TN ~ 20 K (corresponding to the ferrotoroidic transition temperat…
Magnetic reshuffling and feedback on superconductivity in UTe2 under pressure
M. Vališka, W. Knafo, G. Knebel +3
The discovery of superconductivity in the heavy-fermion paramagnet UTe has attracted a lot of attention, particularly due to the reinforcement of superconductivity near pressur…
Self-reconstruction of order parameter in spin-triplet superconductor UTe
Y. Tokiwa, P. Opletal, H. Sakai +10
We investigate the effect of easy-axis metamagnetic crossover on superconductivity in UTe along the -axis through measurements of AC susceptibility, magnetization, and the m…
Fermi surface in the hidden-order state of URuSi under intense pulsed magnetic fields up to 81~T
G. W. Scheerer, W. Knafo, D. Aoki +14
We present measurements of the resistivity of URu2Si2 high-quality single crystals in pulsed high magnetic fields up to 81~T at a temperature of 1.4~K and up to 60~T at…
Anisotropic collapse of electronic correlations in the ferromagnet UGe under high magnetic field
K. Somesh, T. Thebault, V. Taufour +5
We present electrical-resistivity measurements on the prototypical heavy-fermion ferromagnet UGe under pulsed magnetic field up to 60~T. An anisotropic field-induced suppressio…
Pairing symmetry of an intermediate valence superconductor CeIr3 investigated using muSR measurements
D. T. Adroja, A. Bhattacharyya, Y. J. Sato +6
We have investigated the bulk and microscopic properties of the rhombohedral intermediate valence superconductor CeIr by employing magnetization, heat capacity, and muon spin r…
Strong Pauli-limiting behavior of and uniaxial pressure dependencies in KFe2As2
P. Burger, F. Hardy, D. Aoki +8
KFe2As2 single crystals are studied using specific-heat, high-resolution thermal-expansion, magnetization, and magnetostriction measurements. The magnetization and magnetostriction…
Heavy fermions in high magnetic field
D. Aoki, W. Knafo, I. Sheikin
We give an overview on experimental studies performed in the last 25 years on heavy-fermion systems in high magnetic field. The properties of field-induced magnetic transitions in…
Low-dimensional antiferromagnetic fluctuations in the heavy-fermion paramagnetic ladder UTe
W. Knafo, G. Knebel, P. Steffens +7
Inelastic-neutron-scattering measurements were performed on a single crystal of the heavy-fermion paramagnet UTe above its superconducting temperature. We confirm the presence…
Observation of a new field-induced phase transition and its concomitant quantum critical fluctuations in CeCo(InZn)
M. Yokoyama, H. Mashiko, R. Otaka +10
We demonstrate a close connection between observed field-induced antiferromagnetic (AFM) order and quantum critical fluctuation (QCF) in the Zn7%-doped heavy-fermion superconductor…
Magnetism and superconductivity of heavy fermion matter
J. Flouquet, G. Knebel, D. Braithwaite +7
The interplay of magnetism and unconventional superconductivity (d singlet wave or p triplet wave) in strongly correlated electronic system (SCES) is discussed with recent examples…
Disappearance of spin glass behavior in ThCr2Si2-type intermetallic PrAu2Si2
D. X. Li, Y. Shimizu, A. Nakamura +5
It is unexpected that a spin-glass transition, which generally occurs only in the system with some form of disorder, was observed in the ThCr2Si2-type compound PrAu2Si2 at a temper…
High-field moment polarization in the itinerant ferromagnet URhSi
W. Knafo, T. D. Matsuda, F. Hardy +2
We report a high-magnetic-field study of the itinerant ferromagnet URhSi. Magnetization and electrical resistivity were measured under magnetic fields up to 58~T applied al…
Anisotropic Kondo pseudo-gap in URu2Si2
J. Buhot, X. Montiel, Y. Gallais +8
A polarized electronic Raman scattering study reveals the emergence of symmetry dependence in the electronic Raman response of single crystalline URuSi below the Kondo…
Boosted magnetic fluctuations at the onset of superconductivity in UTe beyond 40 T
T. Thebault, K. Somesh, G. Lapertot +11
Several unconventional superconducting phases have been discovered close to a metamagnetic transition in the heavy-fermion compound UTe. Although suspected to be of magnetic na…
Evidence for a new magnetic field scale in CeCoIn5
I. Sheikin, H. Jin, R. Bel +6
The Nernst coefficient of CeCoIn5 displays a distinct anomaly at H_K ~ 23 T. This feature is reminiscent of what is observed at 7.8 T in CeRu2Si2, a well-established case of metama…
Robust Fermi-Surface Morphology of CeRhIn across the Putative Field-Induced Quantum Critical Point
S. Mishra, J. Hornung, M. Raba +7
We report a comprehensive de Haas--van Alphen (dHvA) study of the heavy-fermion material CeRhIn in magnetic fields up to 70~T. Several dHvA frequencies gradually emerge at high…
c axis electrical transport at the metamagnetic transition in the heavy-fermion superconductor UTe2 under pressure
G. Knebel, A. Pourret, S. Rousseau +9
The electrical resistivity of the unconventional superconductor UTe shows very anisotropic behavior in the normal state depending on the current direction. In the present paper…
Interplay between different states in heavy fermion physics
G. Knebel, K. Izawa, F. Bourdarot +4
Calorimetry experiments under high pressure were used to clarify the interplay between different states such as superconductivity and antiferromagnetism in CeRhIn5, spin density wa…
Connecting High-Field and High-Pressure Superconductivity in UTe2
T. Vasina, D. Aoki, A. Miyake +9
The existence of multiple superconducting phases induced by either pressure or magnetic field is one of the most striking features of superconductivity of UTe, among the many u…
Magnetic structure of Cd-doped CeIrIn
K. Beauvois, N. Qureshi, R. Tsunoda +6
We report the magnetic structure of nominally 10% Cd-doped CeIrIn, CeIr(InCd), determined by elastic neutron scattering. Magnetic intensity was observed onl…
Specific heat of CeRhIn in high magnetic fields: Magnetic phase diagram revisited
S. Mishra, A. Demuer, D. Aoki +1
CeRhIn is a prototypical antiferromagnetic heavy-fermion compound, whose behavior in a magnetic field is unique. A magnetic field applied in the basal plane of the tetragonal c…
Coincidence of magnetic and valence quantum critical points in CeRhIn5 under pressure
Z. Ren, G. W. Scheerer, D. Aoki +3
We present accurate electrical resistivity measurements along the two principle crystallographic axes of the pressure-induced heavy-fermion superconductor CeRhIn5 up to 5.63 GPa. F…
Field-induced spin-density wave beyond hidden order in URu2Si2
W. Knafo, F. Duc, F. Bourdarot +9
URu2Si2 is one of the most enigmatic strongly-correlated-electron systems and offers a fertile testing ground for new concepts in condensed matter science. In spite of >30 years of…
Fermi surface instabilities in CeRh2Si2 at high magnetic field and pressure
A. Palacio Morales, A. Pourret, G. Seyfarth +5
We present thermoelectric power (TEP) studies under pressure and high magnetic field in the antiferromagnet CeRh2Si2 at low temperature. Under magnetic field, large quantum oscilla…
Superconducting and ferromagnetic phase diagram of UCoGe probed by thermal expansion
A. M. Nikitin, J. Geldhof, Y. K. Huang +2
We report thermal expansion measurements on a single crystal of the superconducting ferromagnet UCoGe for magnetic fields applied along the main orthorhombic axes. The thermal expa…
Anisotropic superconducting gap in transuranium superconductor PuRhGa: Ga NQR study on a single crystal
H. Sakai, Y. Tokunaga, T. Fujimoto +13
^{69,71}Ga NMR/NQR studies have been performed on a single crystal of the transuranium superconductor PuRhGa_{5} with Tc ~ 9 K. We have observed a ^{69}Ga NQR line at ~29.15 MHz, a…
High-field metamagnetism in the antiferromagnet CeRhSi
W. Knafo, D. Aoki, D. Vignolles +6
A study of the antiferromagnet CeRhSi by torque, magnetostriction, and transport in pulsed magnetic fields up to 50 Tesla and by thermal expansion in static fields up to 13…
Comparison of two superconducting phases induced by a magnetic field in UTe2
W. Knafo, M. Nardone, M. Valiska +5
Superconductivity induced by a magnetic field near metamagnetism is a striking manifestation of magnetically-mediated superconducting pairing. After being observed in itinerant fer…
Symmetry of the Excitations in the Hidden Order State of URu2Si2
J. Buhot, M. -A. Méasson, Y. Gallais +4
We have performed polarized electronic Raman scattering on URu2Si2 single crystals at low temperature down to 8 K in the hidden order state and under magnetic field up to 10 T. The…
Pressure-induced anomalous magnetism and unconventional superconductivity in CeRhIn5 : 115In-NQR Study under Pressure
T. Mito, S. Kawasaki, G. -q. Zheng +6
We report In nuclear-quadrupole-resonance (NQR) measurements of the pressure()-induced superconductor CeRhIn in the antiferromagnetic (AF) and superconducting (SC) s…
Optical conductivity of URuSi in the Kondo Liquid and Hidden-Order Phases
R. P. S. M. Lobo, J. Buhot, M. A. Méasson +4
We measured the polarized optical conductivity of URuSi from room temperature down to 5 K, covering the Kondo state, the coherent Kondo liquid regime, and the hidden-order…
Field-Induced Lifshitz Transition without Metamagnetism in CeIrIn
D. Aoki, G. Seyfarth, A. Pourret +5
We report high magnetic field measurements of magnetic torque, thermoelectric power (TEP), magnetization, and de Haas-van Alphen (dHvA) effect in CeIrIn across 28 T, where a me…
Pressure-Temperature Phase Diagram of Antiferromagnetism and Superconductivity in CeRhIn5 and CeIn3 : In-NQR Study under Pressure
S. Kawasaki, T. Mito, G. -q. Zheng +11
We report the novel pressure() - temperature() phase diagram of antiferromagnetism and superconductivity in CeRhIn and CeIn revealed by the In nuclear-spin-la…
Quasi-two-dimensional Fermi surfaces of the antiferromagnet URhIn revealed by de Haas-van Alphen measurements
D. Aoki, Y. Homma, H. Harima +1
We report temperature-dependent Hall effect and low-temperature de Haas-van Alphen (dHvA) effect measurements of the antiferromagnetic heavy-fermion compound URhIn. Tempera…
Transverse and Longitudinal Magnetic-Field Responses in the Ising Ferromagnets URhGe, UCoGe and UGe2
F. Hardy, D. Aoki, C. Meingast +4
The field dependence of the electronic specific heat gamma(H) of URhGe is determined using temperature-dependent magnetization measurements and Maxwell's relation for all three ort…
Reinforcement of superconductivity by quantum critical fluctuations of metamagnetism in UTe
Y. Tokiwa, . P. Opletal, H. Sakai +8
The normal-conducting state of the superconductor UTe is studied by entropy analysis for magnetic fields along the -axis, obtained from magnetization using the relation $(\p…
Thermoelectric power quantum oscillations in the ferromagnet UGe
A. Palacio Morales, A. Pourret, G. Knebel +5
We present thermoelectric power and resistivity measurements in the ferromagnet UGe as a function of temperature and magnetic field. At low temperature, huge quantum oscillatio…
Gapless Magnetic and Quasiparticle Excitations due to the Coexistence of Antiferromagnetism and Superconductivity in CeRhIn : A study of In-NQR under Pressure
S. Kawasaki, T. Mito, Y. Kawasaki +5
We report systematic measurements of ac-susceptibility, nuclear-quadrupole-resonance spectrum, and nuclear-spin-lattice-relaxation time () on the pressure ()- induced heavy…