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papers

Publications (14)

cond-mat.str-el2003

Tuning Heavy Fermion Systems into Quantum Criticality by Magnetic Field

P. Gegenwart, J. Custers, T. Tayama +8

We discuss a series of thermodynamic, magnetic and electrical transport experiments on the two heavy fermion compounds CeNi2Ge2 and YbRh2Si2 in which magnetic fields, B, are used t…

cond-mat.str-el2026

Complex Magnetic Behavior of the Ce sawtooth chains in CeRhSn $_{2}$

P. Opletal, J. FikÃ¡Äek, E. Duverger-NÃ©dellec +8

Conflicting reports exist on the ground state of the intermetallic compound CeRhSn $_{2}$ . This can be rooted in the sawtooth-like arrangement of two inequivalent Ce sites in the unit…

cond-mat.str-el2020

Magnetic phase diagram of the antiferromagnet U2Rh2Pb

J. Pospisil, M. Misek, M. Divis +4

A new U-based compound of the U2Rh2Pb, a new compound of the U2T2X series was prepared in a single-crystal form. Its structure was determined as belonging to the tetragonal Mo2FeB2…

cond-mat.str-el2014

Ambient Pressure Superconductivity emerging in the Local Moment Antiferromagnetic Phase of Ce $_{3}$ PdIn $_{11}$

M. KratochvÃlovÃ¡, J. ProkleÅ¡ka, K. UhlÃÅovÃ¡ +3

We report on magnetization, specific heat and resistivity experiments on single crystals of the novel heavy Fermion compound Ce $_{3}$ PdIn $_{11}$ . At ambient pressure the compound exh…

cond-mat.str-el2006

Quantum criticality in the cubic heavy-fermion system CeIn_{3-x}Sn_x

R. Kuechler, P. Gegenwart, J. Custers +5

We report a comprehensive study of CeIn $_{3 - x}$ Sn $_{x}$ $(0.55 \leq x \leq 0.8)$ single crystals close to the antiferromagnetic (AF) quantum critical point (QCP) at $x_{c} \approx 0.67$ …

cond-mat.str-el2003

The break up of heavy electrons at a quantum critical point

J. Custers, P. Gegenwart, H. Wilhelm +7

The point at absolute zero where matter becomes unstable to new forms of order is called a quantum critical point (QCP). The quantum fluctuations between order and disorder that de…

cond-mat.str-el2002

Magnetic-Field Induced Quantum Critical Point in YbRh $_{2}$ Si $_{2}$

P. Gegenwart, J. Custers, C. Geibel +5

We report low-temperature calorimetric, magnetic and resistivity measurements on the antiferromagnetic (AF) heavy-fermion metal YbRh $_{2}$ Si $_{2}$ ( $T_{N} =$ 70 mK) as a function of ma…

cond-mat.str-el2015

Destruction of Kondo effect in cubic heavy fermion compound Ce3Pd20Si6

J. Custers, K. -A. Lorenzer, M. MÃ¼ller +9

How ground states of quantum matter transform between one another reveals deep insights into the mechanisms stabilizing them. Correspondingly, quantum phase transitions are explore…

cond-mat.str-el2010

Evidence for a Non-Fermi-Liquid Phase in Ge-Substituted YbRh2Si2

J. Custers, P. Gegenwart, C. Geibel +3

The canonical view of heavy fermion quantum criticality assumes a single quantum critical point separating the paramagnet from the antiferromagnet. However, recent experiments on Y…

cond-mat.str-el2002

Divergence of the Heavy Quasiparticle Mass at the Antiferromagnetic Quantum Critical Point in YbRh_2Si_2

P. Gegenwart, J. Custers, T. Tayama +4

We report low temperature specific heat, C, magnetization, M, susceptibility, chi, and electrical resistivity, rho, measurements on high-quality single crystals of the heavy-fermio…

cond-mat.str-el2012

Physics of Polymorphic Transitions in CeRuSn

J. FikÃ¡Äek, J. ProkleÅ¡ka, M. MÃÅ¡ek +5

We report a detailed study of the polymorphic transitions in ternary stannide CeRuSn on high quality single crystals through a combination of X-ray diffraction experiments conducte…

cond-mat.str-el2015

Magnetic Phase Diagram of the new Heavy Fermion Compound Ce2PtIn8

M. Kratochvilova, K. Uhlirova, J. Custers +2

We report on the discovery and investigation of a new 218 heavy fermion compound. Crystals have been synthesized from In-flux. Structurally, Ce2PtIn8 is located between the cubic C…

cond-mat.str-el2024

Ce $_{3}$ Bi $_{4}$ Ni $_{3}$ $-$ A large hybridization-gap variant of Ce $_{3}$ Bi $_{4}$ Pt $_{3}$

D. M. Kirschbaum, X. Yan, M. Waas +12

The family of cubic noncentrosymmetric 3-4-3 compounds has become a fertile ground for the discovery of novel correlated metallic and insulating phases. Here, we report the synthes…

cond-mat.str-el2005

Ferromagnetic quantum critical fluctuations in YbRh_2(Si_{0.95}Ge_{0.05})_2

P. Gegenwart, J. Custers, Y. Tokiwa +2

The bulk magnetic susceptibility $I ¨ (T, B)$ of YbRh $_{2}$ (Si $_{0.95}$ Ge $_{0.05}$ ) $_{2}$ has been investigated %by ac-and dc-magnetometry at low temperatures and close to the field-induc…