Revisiting apparent ideal diamagnetism at ambient conditions in graphene–n-heptane–permalloy systems

Rajendra Dulal; Serafim Teknowijoyo; Sara Chahid; Vahan Nikoghosyan; Armen Gulian

Paper details

Research paper

Experimental CharacterizationComputed Raman

Revisiting apparent ideal diamagnetism at ambient conditions in graphene–n-heptane–permalloy systems

Rajendra Dulal, Serafim Teknowijoyo, Sara Chahid, Vahan Nikoghosyan et al.

2024·arXiv:2604.14395

Samples

Each sample groups how it was prepared, characterized, and measured. Click a card to expand.

Single- or double-layer graphene on Si/SiO₂ substrate, placed in a glass beaker with graphene layer down and covered by a flat permalloy foil for magnetic-response measurements in n-heptane.

2 characterizations4 properties5 figures

ExperimentalCStudied MaterialC₇H₁₆PrecursorNiFeCapping Or ContactSi/SiO₂ substrateSubstrate / Dielectric

Control specimen measured in the absence of graphene, with n-heptane and permalloy foil under the same magnetic-measurement conditions.

1 characterization1 property5 figures

ExperimentalC₇H₁₆PrecursorNiFeCapping Or ContactSi/SiO₂ substrateSubstrate / Dielectric

Qualitative COMSOL magnetostatic model of a thin permalloy layer with imposed rotating magnetization pattern used to illustrate one-sided flux redistribution.

1 characterization1 figure

SimulatedNiFeCapping Or Contactmagnetic fieldReference Material

Materials

graphene

Studied Material

Also known as

single-layer graphenedouble-layer graphene

Variables

layer_count= 1,2

studied material

Why these are connected

Related documents with shared materials, methods, properties, or citations.

Revisiting apparent ideal diamagnetism at ambient conditions in graphene–n-heptane–permalloy systems | Matter42 Literature

Properties

Type	Label	Value	Material	Sample	Source
Magnetic Signal Change	apparent signal compensation	~0.2mG	C C₇H₁₆ NiFe	Single- or double-layer graphene on Si/SiO₂ substrate, place	—
Magnetic Signal Change	residual frozen signal	approximately -0.2mG	C C₇H₁₆ NiFe	Single- or double-layer graphene on Si/SiO₂ substrate, place	—
Magnetic Signal Change	response type	paramagnetic-like	C C₇H₁₆ NiFe	Single- or double-layer graphene on Si/SiO₂ substrate, place	—
Magnetic Signal Change	frozen compensation without graphene	compensation of magnetic signal	C₇H₁₆ NiFe	Control specimen measured in the absence of graphene, with n	—
Evaporation Time	n-heptane recovery time	3h	C₇H₁₆	Single- or double-layer graphene on Si/SiO₂ substrate, place	—

Properties

Type	Label	Value	Material	Sample	Source
Magnetic Signal Change	apparent signal compensation	~0.2mG	C C₇H₁₆ NiFe	Single- or double-layer graphene on Si/SiO₂ substrate, place	—
Magnetic Signal Change	residual frozen signal	approximately -0.2mG	C C₇H₁₆ NiFe	Single- or double-layer graphene on Si/SiO₂ substrate, place	—
Magnetic Signal Change	response type	paramagnetic-like	C C₇H₁₆ NiFe	Single- or double-layer graphene on Si/SiO₂ substrate, place	—
Magnetic Signal Change	frozen compensation without graphene	compensation of magnetic signal	C₇H₁₆ NiFe	Control specimen measured in the absence of graphene, with n	—
Evaporation Time	n-heptane recovery time	3h	C₇H₁₆	Single- or double-layer graphene on Si/SiO₂ substrate, place	—

Properties

Type	Label	Value	Material	Sample	Source
Magnetic Signal Change	apparent signal compensation	~0.2mG	C C₇H₁₆ NiFe	Single- or double-layer graphene on Si/SiO₂ substrate, place	—
Magnetic Signal Change	residual frozen signal	approximately -0.2mG	C C₇H₁₆ NiFe	Single- or double-layer graphene on Si/SiO₂ substrate, place	—
Magnetic Signal Change	response type	paramagnetic-like	C C₇H₁₆ NiFe	Single- or double-layer graphene on Si/SiO₂ substrate, place	—
Magnetic Signal Change	frozen compensation without graphene	compensation of magnetic signal	C₇H₁₆ NiFe	Control specimen measured in the absence of graphene, with n	—
Evaporation Time	n-heptane recovery time	3h	C₇H₁₆	Single- or double-layer graphene on Si/SiO₂ substrate, place	—

Properties

Type	Label	Value	Material	Sample	Source
Magnetic Signal Change	apparent signal compensation	~0.2mG	C C₇H₁₆ NiFe	Single- or double-layer graphene on Si/SiO₂ substrate, place	—
Magnetic Signal Change	residual frozen signal	approximately -0.2mG	C C₇H₁₆ NiFe	Single- or double-layer graphene on Si/SiO₂ substrate, place	—
Magnetic Signal Change	response type	paramagnetic-like	C C₇H₁₆ NiFe	Single- or double-layer graphene on Si/SiO₂ substrate, place	—
Magnetic Signal Change	frozen compensation without graphene	compensation of magnetic signal	C₇H₁₆ NiFe	Control specimen measured in the absence of graphene, with n	—
Evaporation Time	n-heptane recovery time	3h	C₇H₁₆	Single- or double-layer graphene on Si/SiO₂ substrate, place	—

Revisiting apparent ideal diamagnetism at ambient conditions in graphene–n-heptane–permalloy systems

Samples

Single- or double-layer graphene on Si/SiO₂ substrate, placed in a glass beaker with graphene layer down and covered by a flat permalloy foil for magnetic-response measurements in n-heptane.

Control specimen measured in the absence of graphene, with n-heptane and permalloy foil under the same magnetic-measurement conditions.

Qualitative COMSOL magnetostatic model of a thin permalloy layer with imposed rotating magnetization pattern used to illustrate one-sided flux redistribution.

Materials

Why these are connected

Revisiting apparent ideal diamagnetism at ambient conditions in graphene–n-heptane–permalloy systems

Samples

Single- or double-layer graphene on Si/SiO₂ substrate, placed in a glass beaker with graphene layer down and covered by a flat permalloy foil for magnetic-response measurements in n-heptane.

Control specimen measured in the absence of graphene, with n-heptane and permalloy foil under the same magnetic-measurement conditions.

Qualitative COMSOL magnetostatic model of a thin permalloy layer with imposed rotating magnetization pattern used to illustrate one-sided flux redistribution.

Materials

Why these are connected

Revisiting apparent ideal diamagnetism at ambient conditions in graphene–n-heptane–permalloy systems

Samples

Single- or double-layer graphene on Si/SiO₂ substrate, placed in a glass beaker with graphene layer down and covered by a flat permalloy foil for magnetic-response measurements in n-heptane.

Control specimen measured in the absence of graphene, with n-heptane and permalloy foil under the same magnetic-measurement conditions.

Qualitative COMSOL magnetostatic model of a thin permalloy layer with imposed rotating magnetization pattern used to illustrate one-sided flux redistribution.

Materials

Why these are connected

Revisiting apparent ideal diamagnetism at ambient conditions in graphene–n-heptane–permalloy systems

Samples

Single- or double-layer graphene on Si/SiO₂ substrate, placed in a glass beaker with graphene layer down and covered by a flat permalloy foil for magnetic-response measurements in n-heptane.

Control specimen measured in the absence of graphene, with n-heptane and permalloy foil under the same magnetic-measurement conditions.

Qualitative COMSOL magnetostatic model of a thin permalloy layer with imposed rotating magnetization pattern used to illustrate one-sided flux redistribution.

Materials

Why these are connected

Revisiting apparent ideal diamagnetism at ambient conditions in graphene–n-heptane–permalloy systems

Samples

Single- or double-layer graphene on Si/SiO₂ substrate, placed in a glass beaker with graphene layer down and covered by a flat permalloy foil for magnetic-response measurements in n-heptane.

Control specimen measured in the absence of graphene, with n-heptane and permalloy foil under the same magnetic-measurement conditions.

Qualitative COMSOL magnetostatic model of a thin permalloy layer with imposed rotating magnetization pattern used to illustrate one-sided flux redistribution.

Materials

Why these are connected

Revisiting apparent ideal diamagnetism at ambient conditions in graphene–n-heptane–permalloy systems

Samples

Single- or double-layer graphene on Si/SiO₂ substrate, placed in a glass beaker with graphene layer down and covered by a flat permalloy foil for magnetic-response measurements in n-heptane.

Control specimen measured in the absence of graphene, with n-heptane and permalloy foil under the same magnetic-measurement conditions.

Qualitative COMSOL magnetostatic model of a thin permalloy layer with imposed rotating magnetization pattern used to illustrate one-sided flux redistribution.

Materials

Why these are connected

Revisiting apparent ideal diamagnetism at ambient conditions in graphene–n-heptane–permalloy systems

Samples

Single- or double-layer graphene on Si/SiO₂ substrate, placed in a glass beaker with graphene layer down and covered by a flat permalloy foil for magnetic-response measurements in n-heptane.

Control specimen measured in the absence of graphene, with n-heptane and permalloy foil under the same magnetic-measurement conditions.

Qualitative COMSOL magnetostatic model of a thin permalloy layer with imposed rotating magnetization pattern used to illustrate one-sided flux redistribution.

Materials

Why these are connected

Revisiting apparent ideal diamagnetism at ambient conditions in graphene–n-heptane–permalloy systems

Samples

Single- or double-layer graphene on Si/SiO₂ substrate, placed in a glass beaker with graphene layer down and covered by a flat permalloy foil for magnetic-response measurements in n-heptane.

Control specimen measured in the absence of graphene, with n-heptane and permalloy foil under the same magnetic-measurement conditions.

Qualitative COMSOL magnetostatic model of a thin permalloy layer with imposed rotating magnetization pattern used to illustrate one-sided flux redistribution.

Materials

Why these are connected

Characterization

Properties

Simulations

Characterization

Properties

Simulations

Characterization

Properties

Simulations

Characterization

Properties

Simulations