Crossover from Positive to Negative Magnetoresistance in a Spinel

Dinah R. Parker; Mark A. Green; Steven T. Bramwell; Andrew S. Wills; Jason S. Gardner; Dan A. Neumann

doi:10.1021/ja036965a

Crossover from Positive to Negative Magnetoresistance in a Spinel

Dinah R. Parker
, Mark A. Green
, Steven T. Bramwell
, Andrew S. Wills
, Jason S. Gardner
, Dan A. Neumann

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

27 Scopus citations

Abstract

We present a new class of colossal magnetoresistance materials based on a series of frustrated spinels. The spin glass-like compound Zn_0.95Cu_0.05Cr₂Se₄, shows a field-induced transition to a ferromagnetic, which is associated with a highly unusual negative magnetoresistance effect (MR > 80%) in low magnetic field. At higher temperatures there is an unprecedented crossover to positive magnetoresistance (MR > 50%).

Original language	English
Pages (from-to)	2710-2711
Number of pages	2
Journal	Journal of the American Chemical Society
Volume	126
Issue number	9
DOIs	https://doi.org/10.1021/ja036965a
State	Published - Mar 10 2004
Externally published	Yes

Access to Document

10.1021/ja036965a

Cite this

@article{7148fb1a7cf84c37a7bcd76e03e51775,

title = "Crossover from Positive to Negative Magnetoresistance in a Spinel",

abstract = "We present a new class of colossal magnetoresistance materials based on a series of frustrated spinels. The spin glass-like compound Zn0.95Cu0.05Cr2Se4, shows a field-induced transition to a ferromagnetic, which is associated with a highly unusual negative magnetoresistance effect (MR > 80\%) in low magnetic field. At higher temperatures there is an unprecedented crossover to positive magnetoresistance (MR > 50\%).",

author = "Parker, \{Dinah R.\} and Green, \{Mark A.\} and Bramwell, \{Steven T.\} and Wills, \{Andrew S.\} and Gardner, \{Jason S.\} and Neumann, \{Dan A.\}",

year = "2004",

month = mar,

day = "10",

doi = "10.1021/ja036965a",

language = "English",

volume = "126",

pages = "2710--2711",

journal = "Journal of the American Chemical Society",

issn = "0002-7863",

publisher = "American Chemical Society",

number = "9",

}

TY - JOUR

T1 - Crossover from Positive to Negative Magnetoresistance in a Spinel

AU - Parker, Dinah R.

AU - Green, Mark A.

AU - Bramwell, Steven T.

AU - Wills, Andrew S.

AU - Gardner, Jason S.

AU - Neumann, Dan A.

PY - 2004/3/10

Y1 - 2004/3/10

N2 - We present a new class of colossal magnetoresistance materials based on a series of frustrated spinels. The spin glass-like compound Zn0.95Cu0.05Cr2Se4, shows a field-induced transition to a ferromagnetic, which is associated with a highly unusual negative magnetoresistance effect (MR > 80%) in low magnetic field. At higher temperatures there is an unprecedented crossover to positive magnetoresistance (MR > 50%).

AB - We present a new class of colossal magnetoresistance materials based on a series of frustrated spinels. The spin glass-like compound Zn0.95Cu0.05Cr2Se4, shows a field-induced transition to a ferromagnetic, which is associated with a highly unusual negative magnetoresistance effect (MR > 80%) in low magnetic field. At higher temperatures there is an unprecedented crossover to positive magnetoresistance (MR > 50%).

UR - https://www.scopus.com/pages/publications/1542317830

U2 - 10.1021/ja036965a

DO - 10.1021/ja036965a

M3 - Article

AN - SCOPUS:1542317830

SN - 0002-7863

VL - 126

SP - 2710

EP - 2711

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

IS - 9

ER -

Crossover from Positive to Negative Magnetoresistance in a Spinel

Abstract

Access to Document

Other files and links

Fingerprint

Cite this