Research output: Contribution to journal › Article › peer-review
NMR studies of the ground states of Ni50-xCoxMn35In15 (x=1, 2.5) and Ni45Co5Mn37In13 Heusler alloys. / Aryal, Anil; Dubenko, Igor; Pandey, Sudip; Chen, Jing Han; Talapatra, Saikat; Chlan, Vojtech; Stepankova, Helena; Matveev, Vladimir; Blinov, Mikhail; Prudnikov, Valerii; Granovsky, Alexander; Lähderanta, Erkki; Stadler, Shane; Ali, Naushad.
In: AIP Advances, Vol. 10, No. 1, 015328, 01.01.2020.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - NMR studies of the ground states of Ni50-xCoxMn35In15 (x=1, 2.5) and Ni45Co5Mn37In13 Heusler alloys
AU - Aryal, Anil
AU - Dubenko, Igor
AU - Pandey, Sudip
AU - Chen, Jing Han
AU - Talapatra, Saikat
AU - Chlan, Vojtech
AU - Stepankova, Helena
AU - Matveev, Vladimir
AU - Blinov, Mikhail
AU - Prudnikov, Valerii
AU - Granovsky, Alexander
AU - Lähderanta, Erkki
AU - Stadler, Shane
AU - Ali, Naushad
PY - 2020/1/1
Y1 - 2020/1/1
N2 - Three temperature-induced phase transitions at T=T1, TM/TA, and TC, related to the ferromagnetic order of the martensitic phase (FMMP), martensitic (structural) transitions (MT), and the ferromagnetic order of the austenitic phase (FMAP), respectively, have been observed in the off-stoichiometric Heusler alloys, Ni50-xCoxMn35In15 (x=1, 2.5) and Ni45Co5Mn37In13. The phase transitions temperatures are found to be depended on alloy composition. A kinetic arrest of the AP was observed for Ni47.5Co2.5Mn35In15 in the magnetization measurements during field-cooling cycle (FCC) at 50 kOe. Depending upon the cooling protocols, ZFC and FCC (at H = 50 kOe), two different ground states of the alloys can be found in Ni47.5Co2.5Mn35In15 and Ni45Co5Mn37In13 alloys. The ground states (T=4.2 K and external field H=0) of the alloys was found to be characterized by three main line: two, partially overlapping, at higher frequencies (300-450 MHz), most likely corresponding of manganese resonance lines and one at lower frequency at about 200 MHz. A significant shift in the spectrum of Ni45Co5Mn37In13 by about 100 MHz to higher frequencies was observed. The correlation of magnetizations obtained from magnetic moment and NMR studies is discussed.
AB - Three temperature-induced phase transitions at T=T1, TM/TA, and TC, related to the ferromagnetic order of the martensitic phase (FMMP), martensitic (structural) transitions (MT), and the ferromagnetic order of the austenitic phase (FMAP), respectively, have been observed in the off-stoichiometric Heusler alloys, Ni50-xCoxMn35In15 (x=1, 2.5) and Ni45Co5Mn37In13. The phase transitions temperatures are found to be depended on alloy composition. A kinetic arrest of the AP was observed for Ni47.5Co2.5Mn35In15 in the magnetization measurements during field-cooling cycle (FCC) at 50 kOe. Depending upon the cooling protocols, ZFC and FCC (at H = 50 kOe), two different ground states of the alloys can be found in Ni47.5Co2.5Mn35In15 and Ni45Co5Mn37In13 alloys. The ground states (T=4.2 K and external field H=0) of the alloys was found to be characterized by three main line: two, partially overlapping, at higher frequencies (300-450 MHz), most likely corresponding of manganese resonance lines and one at lower frequency at about 200 MHz. A significant shift in the spectrum of Ni45Co5Mn37In13 by about 100 MHz to higher frequencies was observed. The correlation of magnetizations obtained from magnetic moment and NMR studies is discussed.
KW - ROOM-TEMPERATURE
KW - MAGNETORESISTANCE
UR - http://www.scopus.com/inward/record.url?scp=85078292281&partnerID=8YFLogxK
U2 - 10.1063/1.5129976
DO - 10.1063/1.5129976
M3 - Article
AN - SCOPUS:85078292281
VL - 10
JO - AIP Advances
JF - AIP Advances
SN - 2158-3226
IS - 1
M1 - 015328
ER -
ID: 51534183