Charge transport and magnetic phase evolution in Na-substituted Nd0.5Sr0.5MnO3 manganites at low temperatures

Ramyashri; Mamatha D. Daivajna

doi:10.1016/j.jmmm.2025.173381

Charge transport and magnetic phase evolution in Na-substituted Nd_0.5Sr_0.5MnO₃ manganites at low temperatures

Ramyashri
, Mamatha D. Daivajna^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

This investigation is focused on the transport characteristics and magnetic phase transitions of Nd_0.5−xNa_xSr_0.5 MnO₃ ( x = 0, 0.05, 0.10 ) manganites. We present a comprehensive study of the low temperature behavior in Nd_0.5−xNa_xSr_0.5MnO₃ through detailed resistivity and magnetization measurements. The measurements reveal the simultaneous presence of a ferromagnetic metallic state and an antiferromagnetic insulating state at low temperatures. Several unusual characteristics of the first-order transition in Nd_0.5Sr_0.5MnO₃ is highlighted. The first order nature of the ferromagnetic metallic to antiferromagnetic insulator (charge-ordering) transition in Nd_0.5Sr_0.5MnO₃ is destroyed in Nd_0.5−xNa_xSr_0.5MnO₃, which is evident from the absence of thermal hysteresis between the cooling and warming cycles. A significant enhancement in T_C is observed in the Nd_0.5−xNa_xSr_0.5MnO₃ ( x = 0.05) samples.

Original language	English
Article number	173381
Journal	Journal of Magnetism and Magnetic Materials
Volume	630
DOIs	https://doi.org/10.1016/j.jmmm.2025.173381
Publication status	Published - 15-10-2025

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1016/j.jmmm.2025.173381

Cite this

@article{b8d406e7127749fbad852f63a27641c8,

title = "Charge transport and magnetic phase evolution in Na-substituted Nd0.5Sr0.5MnO3 manganites at low temperatures",

abstract = "This investigation is focused on the transport characteristics and magnetic phase transitions of Nd0.5−xNaxSr0.5 MnO3 ( x = 0, 0.05, 0.10 ) manganites. We present a comprehensive study of the low temperature behavior in Nd0.5−xNaxSr0.5MnO3 through detailed resistivity and magnetization measurements. The measurements reveal the simultaneous presence of a ferromagnetic metallic state and an antiferromagnetic insulating state at low temperatures. Several unusual characteristics of the first-order transition in Nd0.5Sr0.5MnO3 is highlighted. The first order nature of the ferromagnetic metallic to antiferromagnetic insulator (charge-ordering) transition in Nd0.5Sr0.5MnO3 is destroyed in Nd0.5−xNaxSr0.5MnO3, which is evident from the absence of thermal hysteresis between the cooling and warming cycles. A significant enhancement in TC is observed in the Nd0.5−xNaxSr0.5MnO3 ( x = 0.05) samples.",

author = "Ramyashri and Daivajna, \{Mamatha D.\}",

note = "Publisher Copyright: {\textcopyright} 2025 The Authors",

year = "2025",

month = oct,

day = "15",

doi = "10.1016/j.jmmm.2025.173381",

language = "English",

volume = "630",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Charge transport and magnetic phase evolution in Na-substituted Nd0.5Sr0.5MnO3 manganites at low temperatures

AU - Ramyashri,

AU - Daivajna, Mamatha D.

PY - 2025/10/15

Y1 - 2025/10/15

N2 - This investigation is focused on the transport characteristics and magnetic phase transitions of Nd0.5−xNaxSr0.5 MnO3 ( x = 0, 0.05, 0.10 ) manganites. We present a comprehensive study of the low temperature behavior in Nd0.5−xNaxSr0.5MnO3 through detailed resistivity and magnetization measurements. The measurements reveal the simultaneous presence of a ferromagnetic metallic state and an antiferromagnetic insulating state at low temperatures. Several unusual characteristics of the first-order transition in Nd0.5Sr0.5MnO3 is highlighted. The first order nature of the ferromagnetic metallic to antiferromagnetic insulator (charge-ordering) transition in Nd0.5Sr0.5MnO3 is destroyed in Nd0.5−xNaxSr0.5MnO3, which is evident from the absence of thermal hysteresis between the cooling and warming cycles. A significant enhancement in TC is observed in the Nd0.5−xNaxSr0.5MnO3 ( x = 0.05) samples.

AB - This investigation is focused on the transport characteristics and magnetic phase transitions of Nd0.5−xNaxSr0.5 MnO3 ( x = 0, 0.05, 0.10 ) manganites. We present a comprehensive study of the low temperature behavior in Nd0.5−xNaxSr0.5MnO3 through detailed resistivity and magnetization measurements. The measurements reveal the simultaneous presence of a ferromagnetic metallic state and an antiferromagnetic insulating state at low temperatures. Several unusual characteristics of the first-order transition in Nd0.5Sr0.5MnO3 is highlighted. The first order nature of the ferromagnetic metallic to antiferromagnetic insulator (charge-ordering) transition in Nd0.5Sr0.5MnO3 is destroyed in Nd0.5−xNaxSr0.5MnO3, which is evident from the absence of thermal hysteresis between the cooling and warming cycles. A significant enhancement in TC is observed in the Nd0.5−xNaxSr0.5MnO3 ( x = 0.05) samples.

UR - https://www.scopus.com/pages/publications/105011519356

UR - https://www.scopus.com/pages/publications/105011519356#tab=citedBy

U2 - 10.1016/j.jmmm.2025.173381

DO - 10.1016/j.jmmm.2025.173381

M3 - Article

AN - SCOPUS:105011519356

SN - 0304-8853

VL - 630

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

M1 - 173381

ER -

Charge transport and magnetic phase evolution in Na-substituted Nd_0.5Sr_0.5MnO₃ manganites at low temperatures

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this