Abstract
We present magnetization data on a weakly pinned single crystal of CeRu2, showing the existence of a stable state of the vortex matter in the peak effect (PE) region. The stable state is achieved by cycling the magnetic field by a small amplitude. It is characterized by a unique value of the critical current density, independent of the magnetic history of the sample. The results support a recent phenomenological model proposed by Ravikumar et al. [Phys. Rev. B 61 (2000) R6479] which postulates a specific recipe to incorporate the history dependence of the current density. Our data also shows the occurrence of a first order phase transition from an ordered vortex phase to a disordered phase across the PE.
| Original language | English |
|---|---|
| Pages (from-to) | 59-64 |
| Number of pages | 6 |
| Journal | Physica C: Superconductivity and its Applications |
| Volume | 355 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - Jun 1 2001 |
| Externally published | Yes |
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Keywords
- CeRu
- Peak effect
- Stable vortex state
- Step change in equilibrium magnetization
ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Elucidation of the stable vortex state across the peak effect region in CeRu2. / Tulapurkar, A. A.; Heidarian, D.; Sarkar, S.; Ramakrishnan, S.; Grover, A. K.; Yamamoto, E.; Haga, Y.; Hedo, M.; Inada, Yoshihiko; Onuki, Y.
In: Physica C: Superconductivity and its Applications, Vol. 355, No. 1-2, 01.06.2001, p. 59-64.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Elucidation of the stable vortex state across the peak effect region in CeRu2
AU - Tulapurkar, A. A.
AU - Heidarian, D.
AU - Sarkar, S.
AU - Ramakrishnan, S.
AU - Grover, A. K.
AU - Yamamoto, E.
AU - Haga, Y.
AU - Hedo, M.
AU - Inada, Yoshihiko
AU - Onuki, Y.
PY - 2001/6/1
Y1 - 2001/6/1
N2 - We present magnetization data on a weakly pinned single crystal of CeRu2, showing the existence of a stable state of the vortex matter in the peak effect (PE) region. The stable state is achieved by cycling the magnetic field by a small amplitude. It is characterized by a unique value of the critical current density, independent of the magnetic history of the sample. The results support a recent phenomenological model proposed by Ravikumar et al. [Phys. Rev. B 61 (2000) R6479] which postulates a specific recipe to incorporate the history dependence of the current density. Our data also shows the occurrence of a first order phase transition from an ordered vortex phase to a disordered phase across the PE.
AB - We present magnetization data on a weakly pinned single crystal of CeRu2, showing the existence of a stable state of the vortex matter in the peak effect (PE) region. The stable state is achieved by cycling the magnetic field by a small amplitude. It is characterized by a unique value of the critical current density, independent of the magnetic history of the sample. The results support a recent phenomenological model proposed by Ravikumar et al. [Phys. Rev. B 61 (2000) R6479] which postulates a specific recipe to incorporate the history dependence of the current density. Our data also shows the occurrence of a first order phase transition from an ordered vortex phase to a disordered phase across the PE.
KW - CeRu
KW - Peak effect
KW - Stable vortex state
KW - Step change in equilibrium magnetization
UR - http://www.scopus.com/inward/record.url?scp=0035365951&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035365951&partnerID=8YFLogxK
U2 - 10.1016/S0921-4534(00)01772-X
DO - 10.1016/S0921-4534(00)01772-X
M3 - Article
AN - SCOPUS:0035365951
VL - 355
SP - 59
EP - 64
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
IS - 1-2
ER -