IFLYSIB 05383
INSTITUTO DE FISICA DE LIQUIDOS Y SISTEMAS BIOLOGICOS
Unidad Ejecutora - UE
artículos
Título:
Entropy in the nematic phase and in the quantum critical region of Sr3Ru2O7
Autor/es:
A. W. ROST; R. S. PERRY; J.-F. MERCURE; A. P. MACKENZIE; S. A. GRIGERA
Revista:
SCIENCE
Editorial:
AMER ASSOC ADVANCEMENT SCIENCE
Referencias:
Año: 2009 vol. 325 p. 1360 - 1363
ISSN:
0036-8075
Resumen:
Low-temperature phase transitions and the associated quantum critical points are a major field of
research, but one in which experimental information about thermodynamics is sparse.
Thermodynamic information is vital for the understanding of quantum many-body problems. We
show that combining measurements of the magnetocaloric effect and specific heat allows a
comprehensive study of the entropy of a system. We present a quantitative measurement of the
entropic landscape of Sr3Ru2O7, a quantum critical system in which magnetic field is used as a
tuning parameter. This allows us to track the development of the entropy as the quantum
critical point is approached and to study the thermodynamic consequences of the formation
of a novel electronic liquid crystalline phase in its vicinity.
