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This group is a forum for all users of the vampire atomistic simulation software package to discuss any issues related to running and compiling the software and future developments of the code, i.e. feature requests.

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3:42 AM

VAMPIRE workshop at FAST Conference, Phuket, Thailand 2-6 Feb 2026

Dear VAMPIRE users, I wanted to let everyone know about the upcoming VAMPIRE workshop at the FAST

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VAMPIRE workshop at FAST Conference, Phuket, Thailand 2-6 Feb 2026

Dear VAMPIRE users, I wanted to let everyone know about the upcoming VAMPIRE workshop at the FAST

3:42 AM

Oct 16

Constructing UCF File for 2D Tetragonal MoX3 (P4/mmm) (FM and AFM )

Dear VAMPIRE User Support Team, I hope this message finds you well. I am currently working on

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Constructing UCF File for 2D Tetragonal MoX3 (P4/mmm) (FM and AFM )

Dear VAMPIRE User Support Team, I hope this message finds you well. I am currently working on

Oct 16

Oct 16

Constructing UCF File for 2D Tetragonal MoX3 (P4/mmm) (FM and AFM )

Dear VAMPIRE User Support Team, I hope this message finds you well. I am currently working on

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Constructing UCF File for 2D Tetragonal MoX3 (P4/mmm) (FM and AFM )

Dear VAMPIRE User Support Team, I hope this message finds you well. I am currently working on

Oct 16

Oct 14

Question about total m(z) and system temperature

Hi everyone, I'm trying to simulate one of the GdFeCo examples provided in the tutorial, but I

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Question about total m(z) and system temperature

Hi everyone, I'm trying to simulate one of the GdFeCo examples provided in the tutorial, but I

Oct 14

Ratthaphong Rangngoen, gabo...@gmail.com3

Oct 14

Question about mn2au unit cell

Thank you very much for your response. I will try it. Kind Regards, Book On Tue, Oct 14, 2025 at 11:

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Question about mn2au unit cell

Thank you very much for your response. I will try it. Kind Regards, Book On Tue, Oct 14, 2025 at 11:

Oct 14

Peela baradwaj naidu, gabo...@gmail.com2

Oct 8

Different checkpoint flags

You probably want to use restart. However, you may read about the difference between restart and

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Different checkpoint flags

You probably want to use restart. However, you may read about the difference between restart and

Oct 8

Li Shan, … Richard Evans4

Sep 15

How to set UCF files for two different layers of materials?

Hi, You can get from BCC to BCT (body-centred tetragonal) which is the same as FCC with the correct c

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How to set UCF files for two different layers of materials?

Hi, You can get from BCC to BCT (body-centred tetragonal) which is the same as FCC with the correct c

Sep 15

Peela baradwaj naidu, Richard Evans2

Sep 10

I think you need a bigger systems size to stabilise the domain wall. For small systems, the exchange

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I think you need a bigger systems size to stabilise the domain wall. For small systems, the exchange

Sep 10

Peela baradwaj naidu

Aug 27

Domain wall pinning

Hello VAMPIRE users , I am currently working with a custom program that combines field pulse and

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Domain wall pinning

Hello VAMPIRE users , I am currently working with a custom program that combines field pulse and

Aug 27

Shubrat Singh, Xu He2

Aug 27

Query Regarding Discrepancy in Tc Calculation of CrI3

Hello, I am a TB2J developer and there are a few things to clarify. The TB2J_examples are for

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Query Regarding Discrepancy in Tc Calculation of CrI3

Hello, I am a TB2J developer and there are a few things to clarify. The TB2J_examples are for

Aug 27

Aug 26

Re: Huge Energy Discrepancy (Order of Magnitude) Between Zero-Field Cooled State and Subsequent Warming Simulation

Dear Christopher, This might be due to average vs instantaneous energy (positive indicates unstable,

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Re: Huge Energy Discrepancy (Order of Magnitude) Between Zero-Field Cooled State and Subsequent Warming Simulation

Dear Christopher, This might be due to average vs instantaneous energy (positive indicates unstable,

Aug 26

Li Shan, gabo...@gmail.com2

Aug 24

How to generate Neel domain walls?

Picture of a Néel wall from Figure 1 (a) of [1]. The domain wall transition from up to down at the

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How to generate Neel domain walls?

Picture of a Néel wall from Figure 1 (a) of [1]. The domain wall transition from up to down at the

Aug 24

Peela baradwaj naidu, … gabo...@gmail.com5

Aug 23

Custom temperature profile

As shown below, it looks like the interpolated temperature pulse can be obtained in the output file

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Custom temperature profile

As shown below, it looks like the interpolated temperature pulse can be obtained in the output file

Aug 23

Karunakaran M (RC2133002011015), … gabo...@gmail.com4

Aug 23

Regarding Curie temperature calculation for Full Heusler alloy(Co2MnAl)

In your log file, I see the following error list: 23-08-2025 [10:20:06] Error! Exchange interaction

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Regarding Curie temperature calculation for Full Heusler alloy(Co2MnAl)

In your log file, I see the following error list: 23-08-2025 [10:20:06] Error! Exchange interaction

Aug 23

Tong Zhao, gabo...@gmail.com2

Aug 22

Clarification of theta/phi definitions for CMC anisotropy

If it helps, do you have "Initialising spins to new constraint direction (phi, theta)" in

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Clarification of theta/phi definitions for CMC anisotropy

If it helps, do you have "Initialising spins to new constraint direction (phi, theta)" in

Aug 22

الأستاذ لطرش

Aug 13

Small magnetization values from Monte-Carlo simulation

Dear Vampire users and developpers, The exchange coupling parameters were calculated using TB2J and

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Small magnetization values from Monte-Carlo simulation

Dear Vampire users and developpers, The exchange coupling parameters were calculated using TB2J and

Aug 13

Aug 5

yuyangdinuo@gmail.com

Dear Vampire Users, I am now trying to apply stagger torques to the neighboring antiparallel spins in

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yuyangdinuo@gmail.com

Dear Vampire Users, I am now trying to apply stagger torques to the neighboring antiparallel spins in

Aug 5

Xiaoping Wei, … الأستاذ لطرش7

Aug 5

Requested number of atoms outside of valid range

Thank you Gavin it works well now. This is part of my output 0 1 25 0.940688 50 0.887324 75 0.837863

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Requested number of atoms outside of valid range

Thank you Gavin it works well now. This is part of my output 0 1 25 0.940688 50 0.887324 75 0.837863

Aug 5

الأستاذ لطرش

Aug 4

Monte Carlo simulation give wrong Curie Temperature

Dear Vampire users, I'am trying to simulate the curie temperature for a quaternary Heusler alloy

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Monte Carlo simulation give wrong Curie Temperature

Dear Vampire users, I'am trying to simulate the curie temperature for a quaternary Heusler alloy

Aug 4

逄晓霖, … Richard Evans4

Jul 29

Hi , Thank you for the info and updates! Your suggestions are very helpful. And I'm looking

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Hi , Thank you for the info and updates! Your suggestions are very helpful. And I'm looking

Jul 29

Mohammad Abu Jasem, gabo...@gmail.com2

Jul 24

FMR simulation of a microwire

Figure 3.1 from T. Dion's dissertation titled "Study of High Frequency Magnetisation

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FMR simulation of a microwire

Figure 3.1 from T. Dion's dissertation titled "Study of High Frequency Magnetisation

Jul 24

Soumyadipta Pal

Jul 20

Query regarding Full Heusler alloy (Co2FeSi)

Hi, Can anyone help........? What will be the form of .mat file in case of ternary alloy? I know

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Query regarding Full Heusler alloy (Co2FeSi)

Hi, Can anyone help........? What will be the form of .mat file in case of ternary alloy? I know

Jul 20

Vinod Naik Bhukya, gabo...@gmail.com6

Jul 6

Interface roughness

The create:material-interfacial-roughness and material:interface-roughness looks like they were

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Interface roughness

The create:material-interfacial-roughness and material:interface-roughness looks like they were

Jul 6

Peela baradwaj naidu, … gabo...@gmail.com7

Jul 4

Simualting time varying magnetic field

I'm thinking that might not be possible with only changes to the input file. Probably, you would

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Simualting time varying magnetic field

I'm thinking that might not be possible with only changes to the input file. Probably, you would

Jul 4

Vinod Naik Bhukya

Jun 29

Discrepancies in the manual

Dear Dr. Richard, I have found two discrepancies in the new manual. 1. Page No.7 letter 's'

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Discrepancies in the manual

Dear Dr. Richard, I have found two discrepancies in the new manual. 1. Page No.7 letter 's'

Jun 29

Vinod Naik Bhukya, … Richard Evans5

Jun 11

STT Implementation

I have one doubt which is still unclear. Is spin-torque a different module ? richard....@gmail.com 在

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STT Implementation

I have one doubt which is still unclear. Is spin-torque a different module ? richard....@gmail.com 在

Jun 11

Juliana Zarpellon, Gavin Abo2

Jun 11

simple histeresis loops - Fe

Based on your input file, it looks like your 6 column output is the following. Column 1: real-time

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simple histeresis loops - Fe

Based on your input file, it looks like your 6 column output is the following. Column 1: real-time

Jun 11

Vinod Naik Bhukya, Richard Evans2

Jun 9

why links on vampire website does not work??

Contributions to the manual, website and software are always very welcome. However as a mostly

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why links on vampire website does not work??

Contributions to the manual, website and software are always very welcome. However as a mostly

Jun 9

Muhammad Kashif, gabo...@gmail.com4

Jun 9

Atomic Composition in system generation

I see the following error message in your screenshot (Screenshot 2025-06-05 204017.png): Error! atom

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Atomic Composition in system generation

I see the following error message in your screenshot (Screenshot 2025-06-05 204017.png): Error! atom

Jun 9

Jun 6

VAMPIRE version 7.0 released

Hi everyone, I have just updated the main vampire code version to 7.0, and updated the website with

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VAMPIRE version 7.0 released

Hi everyone, I have just updated the main vampire code version to 7.0, and updated the website with

Jun 6

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