Effect of magnetic impurities on the vortex lattice properties in NbSe 2 single crystals

M. Iavarone, R. Di Capua, G. Karapetrov, A. E. Koshelev, D. Rosenmann, H. Claus, C. D. Malliakas, Mercouri G Kanatzidis, T. Nishizaki, N. Kobayashi

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

We report a pronounced peak effect in the magnetization of Cox NbSe2 single crystals with critical temperatures Tc ranging between 7.1 and 5.0 K, and Mnx NbSe2 single crystals with critical temperatures down to 3.4 K. We correlate the peak effect in magnetization with the structure of the vortex lattice across the peak-effect region using scanning-tunneling microscopy. Magnetization measurements show that the amplitude of the peak effect in the case of Cox NbSe2 exhibits a nonmonotonic behavior as a function of the Co content, reaching a maximum for concentration of Co of about 0.4 at.% (corresponding to a Tc of 5.7 K) and after that gradually decreasing in amplitude with the increase in the Co content. The normalized value of the peak position Hp/Hc2 has weak dependence on Co concentration. In the case of Mnx NbSe2 the features of the peak effect as a function of the Mn content are different and they can be understood in terms of strong pinning.

Original languageEnglish
Article number174518
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume78
Issue number17
DOIs
Publication statusPublished - Nov 17 2008

Fingerprint

Crystal lattices
Magnetization
Vortex flow
Single crystals
vortices
Impurities
impurities
single crystals
Scanning tunneling microscopy
magnetization
critical temperature
Temperature
scanning tunneling microscopy

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials

Cite this

Iavarone, M., Di Capua, R., Karapetrov, G., Koshelev, A. E., Rosenmann, D., Claus, H., ... Kobayashi, N. (2008). Effect of magnetic impurities on the vortex lattice properties in NbSe 2 single crystals. Physical Review B - Condensed Matter and Materials Physics, 78(17), [174518]. https://doi.org/10.1103/PhysRevB.78.174518

Effect of magnetic impurities on the vortex lattice properties in NbSe 2 single crystals. / Iavarone, M.; Di Capua, R.; Karapetrov, G.; Koshelev, A. E.; Rosenmann, D.; Claus, H.; Malliakas, C. D.; Kanatzidis, Mercouri G; Nishizaki, T.; Kobayashi, N.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 78, No. 17, 174518, 17.11.2008.

Research output: Contribution to journalArticle

Iavarone, M, Di Capua, R, Karapetrov, G, Koshelev, AE, Rosenmann, D, Claus, H, Malliakas, CD, Kanatzidis, MG, Nishizaki, T & Kobayashi, N 2008, 'Effect of magnetic impurities on the vortex lattice properties in NbSe 2 single crystals', Physical Review B - Condensed Matter and Materials Physics, vol. 78, no. 17, 174518. https://doi.org/10.1103/PhysRevB.78.174518
Iavarone, M. ; Di Capua, R. ; Karapetrov, G. ; Koshelev, A. E. ; Rosenmann, D. ; Claus, H. ; Malliakas, C. D. ; Kanatzidis, Mercouri G ; Nishizaki, T. ; Kobayashi, N. / Effect of magnetic impurities on the vortex lattice properties in NbSe 2 single crystals. In: Physical Review B - Condensed Matter and Materials Physics. 2008 ; Vol. 78, No. 17.
@article{89e11dc9f0c84a3c8382861f7ce62234,
title = "Effect of magnetic impurities on the vortex lattice properties in NbSe 2 single crystals",
abstract = "We report a pronounced peak effect in the magnetization of Cox NbSe2 single crystals with critical temperatures Tc ranging between 7.1 and 5.0 K, and Mnx NbSe2 single crystals with critical temperatures down to 3.4 K. We correlate the peak effect in magnetization with the structure of the vortex lattice across the peak-effect region using scanning-tunneling microscopy. Magnetization measurements show that the amplitude of the peak effect in the case of Cox NbSe2 exhibits a nonmonotonic behavior as a function of the Co content, reaching a maximum for concentration of Co of about 0.4 at.{\%} (corresponding to a Tc of 5.7 K) and after that gradually decreasing in amplitude with the increase in the Co content. The normalized value of the peak position Hp/Hc2 has weak dependence on Co concentration. In the case of Mnx NbSe2 the features of the peak effect as a function of the Mn content are different and they can be understood in terms of strong pinning.",
author = "M. Iavarone and {Di Capua}, R. and G. Karapetrov and Koshelev, {A. E.} and D. Rosenmann and H. Claus and Malliakas, {C. D.} and Kanatzidis, {Mercouri G} and T. Nishizaki and N. Kobayashi",
year = "2008",
month = "11",
day = "17",
doi = "10.1103/PhysRevB.78.174518",
language = "English",
volume = "78",
journal = "Physical Review B-Condensed Matter",
issn = "1098-0121",
publisher = "American Physical Society",
number = "17",

}

TY - JOUR

T1 - Effect of magnetic impurities on the vortex lattice properties in NbSe 2 single crystals

AU - Iavarone, M.

AU - Di Capua, R.

AU - Karapetrov, G.

AU - Koshelev, A. E.

AU - Rosenmann, D.

AU - Claus, H.

AU - Malliakas, C. D.

AU - Kanatzidis, Mercouri G

AU - Nishizaki, T.

AU - Kobayashi, N.

PY - 2008/11/17

Y1 - 2008/11/17

N2 - We report a pronounced peak effect in the magnetization of Cox NbSe2 single crystals with critical temperatures Tc ranging between 7.1 and 5.0 K, and Mnx NbSe2 single crystals with critical temperatures down to 3.4 K. We correlate the peak effect in magnetization with the structure of the vortex lattice across the peak-effect region using scanning-tunneling microscopy. Magnetization measurements show that the amplitude of the peak effect in the case of Cox NbSe2 exhibits a nonmonotonic behavior as a function of the Co content, reaching a maximum for concentration of Co of about 0.4 at.% (corresponding to a Tc of 5.7 K) and after that gradually decreasing in amplitude with the increase in the Co content. The normalized value of the peak position Hp/Hc2 has weak dependence on Co concentration. In the case of Mnx NbSe2 the features of the peak effect as a function of the Mn content are different and they can be understood in terms of strong pinning.

AB - We report a pronounced peak effect in the magnetization of Cox NbSe2 single crystals with critical temperatures Tc ranging between 7.1 and 5.0 K, and Mnx NbSe2 single crystals with critical temperatures down to 3.4 K. We correlate the peak effect in magnetization with the structure of the vortex lattice across the peak-effect region using scanning-tunneling microscopy. Magnetization measurements show that the amplitude of the peak effect in the case of Cox NbSe2 exhibits a nonmonotonic behavior as a function of the Co content, reaching a maximum for concentration of Co of about 0.4 at.% (corresponding to a Tc of 5.7 K) and after that gradually decreasing in amplitude with the increase in the Co content. The normalized value of the peak position Hp/Hc2 has weak dependence on Co concentration. In the case of Mnx NbSe2 the features of the peak effect as a function of the Mn content are different and they can be understood in terms of strong pinning.

UR - http://www.scopus.com/inward/record.url?scp=57349122348&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=57349122348&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.78.174518

DO - 10.1103/PhysRevB.78.174518

M3 - Article

AN - SCOPUS:57349122348

VL - 78

JO - Physical Review B-Condensed Matter

JF - Physical Review B-Condensed Matter

SN - 1098-0121

IS - 17

M1 - 174518

ER -